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Portable MiniDisc Recorder
Operating Instructions Mode demploi

MZ-R37

1999 by Sony Corporation

WARNING

To prevent fire or shock hazard, do not expose the unit to rain or moisture. To avoid electrical shock, do not open the cabinet. Refer servicing to qualified personnel only.
For the customers in Canada RECYCLING NICKEL-CADMIUM BATTERIES
Nickel Cadmium batteries are recyclable. You can help preserve our environment by returning your unwanted batteries to your nearest point for collection, recycling or proper disposal. Note: In some areas the disposal of nickel cadmium batteries in household or business trash may be prohibited. RBRC (Rechargeable Battery Recycling Corporation) advises you about spent battery collection by the following phone number. Call toll free number: 1-800-822-8837 (United States and Canada only) Caution: Do not handle damaged or leaking nickel-cadmium batteries.

Caution

The use of optical instruments with this product will increase eye hazard. Listening for many hours at maximum volume may damage your hearing.

Information

IN NO EVENT SHALL SELLER BE LIABLE FOR ANY DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY NATURE, OR LOSSES OR EXPENSES RESULTING FROM ANY DEFECTIVE PRODUCT OR THE USE OF ANY PRODUCT.
MD WALKMAN is a trademark of Sony Corporation.

For Customers in Canada

If the supply cord of the AC power adaptor is damaged, the AC power adaptor must be returned to the manufacturer or his agent for the cord to be replaced.

Welcome!

Welcome to the world of the MiniDisc! Here are some of the capabilities and features you'll discover with the new MiniDisc Recorder. Recording MiniDisc Walkman with a new, thin body design Easy to carry in your bag. Easy-to-operate remote control with editing capabilities You can label discs and tracks, move or erase tracks, etc., from the remote control as well as the main unit. Battery compartment adapted for the rechargeable battery The rechargeable batteries fits in the same battery compartment of the MiniDisc player as the dry battery. The rechargeable batteries can be charged in this comparment as well. High-fidelity recording Low-noise, low-distortion, high-fidelity recording through the optical digital input jack. Digital synchro-recording When recording from a digital equipment with optical output, the recorder automatically starts and pauses recording in sync with operation on the digital source. Digital AGC (Auto Gain Control) Automatic recording level adjustment without sacrificing superb digital sound. Long-time recording with monaural sound You can record up to 148 minutes on a disc using monaural recording.

Table of contents

Recording an MD right away!.. 6 Playing an MD right away!.. 8 Various ways of recording. 10
Two ways of connecting to a sound source.. 10 Recording with digital input (optical cable required).. 11 To start/stop recording in sync with the source player (Synchro-recording).. 11 Recording from a microphone... 12 Recording in monaural for double the normal recording time. 13 Adjusting the recording level manually (Manual recording). 13 Checking the remaining time or the recording position. 14
Various ways of playback.. 15
Playing tracks repeatedly... 15 Emphasizing bass (DIGITAL MEGA BASS).. 15 Protecting your hearing (AVLS)... 16 Checking the remaining time or the playing position. 16 Locking the controls (HOLD).. 17 Connecting to a stereo system... 17
Editing recorded tracks... 18
Erasing tracks.... 18 To erase a track... 18 To erase the whole disc.. 18 Adding a track mark.... 19 Erasing a track mark.... 20 Moving recorded tracks.. 20 Labeling recordings... 21

Power sources... 23

Charging the nickel-cadmium rechargeable batteries.. 23 Using on dry batteries... 24
Additional information... 25
Precautions... 25 Troubleshooting... 27 System limitations... 29 Messages.... 30 Specifications... 32 What is an MD?... 33 Looking at the controls... 35
Recording an MD right away!
The sound will be sent from the connected equipment as analog signal but will be recorded digitally on the disc. To record from a digital source, see Recording with digital input (page 11).
1 Make connections. (Connect securely.)
CD player, cassette recorder, etc. (source) to LINE OUT
to a wall outlet AC power adaptor (supplied)
* Use the connecting cords without an attenuator. To connect to a portable CD player with a stereo minijack, use the RK-G136 connecting cord (not supplied).

L (white)

R (red) to (OPTICAL) LINE IN Line cable (RK-G129, not supplied)* to DC IN 4.5V
2 Insert a recordable MD.
1 Slide OPEN and open the lid.
2 Insert a recordable MD with the label side facing up, and press the lid down to close.

3 Record an MD.

REC pCHARGE
1 Press and slide REC upward.
REC lights up and recording starts.
2 Play the CD or tape you want to record.
To stop recording, press p. CD player, cassette recorder, etc. (source)
EDIT flashes while data of the recording (the tracks start and end points, etc.) is being recorded. Do not move or jog the recorder or disconnect the power source while the indication is flashing in the display.
To Pause Record from the end of the previous recording Record partway through the previous recording Remove the MD
Press P1) Press P again to resume recording. END SEARCH and slide REC upward. (, + or = to find the start point of recording and press p to stop. Then slide REC upward. p and slide OPEN to open the lid.2)
A track mark is added at the point where you press P; thus the remainder of the track will be counted as a new track. Once you open the lid, the point to start recording will change to the beginning of the first track. Check the point to start recording on the display.
If the recording does not start
Make sure the recorder is not locked (page 17). Make sure the MD is not record-protected (page 26). Premastered MDs cannot be recorded over.
The level of the recorded sound is adjusted automatically. You can monitor the sound during recording. Connect the supplied headphones with remote control to PHONES/REMOTE and adjust the volume by pressing VOL +/. This does not affect the recording level.
If the power supply is disrupted (i.e. the battery is removed or becomes exhausted or the AC power adaptor is disconnected) when the recorder is operating, the lid will not open until the power is restored.

Playing an MD right away!
To use the recorder on rechargeable batteries or dry batteries, see Power Sources (pages 23, 24).
to a wall outlet to PHONES/ REMOTE AC power adaptor (supplied)
Headphones with a remote control (supplied)
Wear the earpiece marked R in your right ear and the one marked L in your left ear.

to DC IN 4.5V

2 Insert an MD.
2 Insert an MD with the label side facing up, and press the lid down to close.

3 Play an MD.

(+ pENTER 1 Press ( ((+ on the remote control).
A short beep sounds in the headphones when you operate on the remote control.
VOL POSITION +/ pCHARGE 2 Press VOL +/ to adjust the volume. (ENTER The volume will be shown in the

display.

VOL +/

To stop play, press p.

A long beep sounds in the headphones when you operate on the remote control.
To Pause Find the beginning of the current track Find the beginning of the next track Go backwards while playing1) Go forward while playing1) Remove the MD
Do this (Beeps in the headphones) Press P (Continuous short beeps) Press P again to resume play. Press = once (Three short beeps) Press + once ((+ on the remote control) (Two short beeps) Keep pressing = Keep pressing + ((+ on the remote control) Press p and slide OPEN to open the lid.2)
To go backward or forward quickly without listening, press P and then keep pressing = or + ((+ on the remote control). Once you open the lid, the point to start play will change to the beginning of the first track.
If the play does not start
Make sure the recorder is not locked (page 17).
The sound may skip during playback when the recorder is exposed to continuous vibration, such as while jogging.
When using optional headphones
Use only headphones with stereo mini plugs. You cannot use headphones with micro plugs.
Playback will switch automatically between stereo and monaural according to the sound source.
zVarious ways of recording Two ways of connecting to a sound source
The input jack of this recorder works as both digital and analog input jacks. Connect the recorder to a CD player or a cassette recorder using either digital input or analog input. To record, see Recording with digital input (page 11) to record using digital input, and Recording an MD right away! (page 6) to record using analog input.
Difference between digital and analog inputs Difference Input Digital input Equipment with an optical digital output jack Analog (line) input Equipment with an analog (line) output jack
Connectable source Usable cord Signal from the source
Digital cable (with an optical Line cable (with 2 phono and an optical-mini plug) plugs and a stereo-mini plug) Digital Analog Even when a digital source (such as a CD) is connected, the signal sent to the recorder is analog. Marked automatically after more than 2 seconds of blank or low-level segment. when the recorder is paused while recording. You can erase unnecessary marks after recording (Erasing a track mark, page 20). Adjusted automatically. Can also be adjusted manually (Adjusting the recording level manually, page 13).

Recorded track numbers

Marked (copied) automatically at the same positions as the source. when the recorder is paused while recording. You can erase unnecessary marks after recording (Erasing a track mark, page 20). Same as the source

Recorded sound level

Track marks may be copied incorrectly : when you record from some CD players or multi disc players using digital input. when the source is in shuffle or program play mode while recording using digital input. In this case, play the source in normal play mode. when recording BS or CS programs through digital input.
Recording with digital input (optical cable required)
Connect to a digital source using the supplied optical cable, or POC-5B or POC-5AB (not supplied) to make digital recordings. Digital recording is possible even from digital equipment with different sampling rates, such as a DAT deck or a BS tuner, using the built-in sampling rate converter. CD player, MD player, digital amplifier, etc. Optical plug POC-5B (not supplied) etc. Optical connecting cord (supplied) etc. Portable CD player, etc.
(OPTICAL) LINE IN jack is for both digital and analog input
The recorder automatically recognizes the type of line cable and switches to digital or analog input.
To stop recording, press p. Notes
You can make a digital recording only from an optical type output. When recording from a portable CD player, play it on AC power and disable the anti-skip function (such as ESP*). Digital output may be disabled on some portable CD players when the player is not run on AC power. * Electronic Shock Protection

Optical miniplug

To start/stop recording in sync with the source player (Synchro-recording)
You can easily make digital recordings of a digital source on an MD. Before synchro-recording, make connections to the digital source with a digital cable, and insert a recordable MD. CD players, etc. pCHARGE

to (OPTICAL) LINE IN

Insert a recordable MD and start recording. For recording operations, see Recording an MD right away ! (page 6). To record from a portable CD player, set the CD player to pause and then start recording.
SYNCHRO REC (at the bottom)

continued

Slide SYNCHRO REC to ON. SYNC appears in the display.
Recording from a microphone
Connect a stereo microphone (ECM-717, ECM-MS907, ECM-MS957, etc.; not supplied) to the MIC (PLUG IN POWER) jack.
Press and slide REC upward. The recorder stands by for recording. Play the source sound. The recorder starts recording when it receives the playing sound.

Stereo microphone

You cannot pause manually during synchro-recording. When there is no sound from the player for more than 3 seconds during synchrorecording, the recorder goes into the standby mode automatically. When the sound comes from the player again, the recorder resumes synchro-recording. If the recorder is kept in the standby mode for 5 minutes or longer, the recorder stops automatically. Do not switch SYNCHRO REC after step 2. Recording may not be done properly. Even when there is no recorded sound on the sound source, there may be cases when recording does not pause automatically during synchro-recording due to the noise level emitted from the sound source.

to MIC (PLUG IN POWER)

Insert a recordable MD and start recording. Press and slide REC upward. REC lights up and recording starts. For other operations, see Recording an MD right away! (page 6).
When recording in monaural, follow steps 1 and 2 of Recording in monaural for double the normal recording time (page 13) before synchro-recording.
When recording sources with large sound, adjust recording manually to prevent distortion (see Adjusting the recording level manually, page 13). You cannot record through the microphone while an optical cable is connected to the (OPTICAL) LINE IN jack. The recorder automatically switches input in the following order; optical input, microphone input, and analog input. The microphone may pick up the operating sound of the recorder itself. Use the microphone away from the recorder in such cases.
Recording in monaural for double the normal recording time
For longer recordings, choose to record in monaural. The recording time becomes double the normal.
Adjusting the recording level manually (Manual recording)
When you record with an analog input, the sound level is adjusted automatically. If necessary, you can set the level manually. PCAPS REC
MODEDELETE (at the bottom)

PCAPS = +

While pressing P, press and slide REC upward. The recorder stands by for recording. Press MODE. Mono appears in the display, and the recorder switches to monaural recording. Press MODE again to record in stereo. Press P again to start recording. Play the sound source.
While pressing P, slide and hold REC upward for more than 2 seconds. Manual appears and the recorder stands by for recording. To return to the automatic control, while the recorder is in standby mode, slide and hold REC upward again for more than 2 seconds.
To stop recording, press p.
The recorder switches back to stereo recording when you record the next time.

Manual

Play the source.
If you record a stereo source in monaural, the sounds from left and right will be mixed. You cannot record in monaural if SYNCHRO REC is slid to ON. The MDs recorded in monaural can be played back only with an MD player/ recorder that has the monaural playing function. Sound recorded through digital input can be monitored in stereo through headphones, etc.

While observing the level meter in the display, adjust the recording level by pressing + (+) or = (). Set the level so that it hits the 5th indicator from the left (i.e., the length of the lit recording level indicator reaches the full length of the recording level guide) at maximum input level. Recording level guide
Checking the remaining time or the recording position
You can check the remaining time, track number, etc. when recording or during stop. DISPLAYEDITINSERT Bottom
Note Adjust the recording level while the recorder is in standby mode. You cannot adjust it while recording.
Press DISPLAY while recording or in stop mode. Each time you press the button, the display changes as follows.
Press P again to start recording.
The recording level control is switched back to automatic control when you record the next time.

B While recording A

Track number Track number In stop mode
Elapsed time Remaining time for recording
Track number Track name Disc name1)
Elapsed time Remaining time for recording Remaining time after the current location
Appears only if the track has been labeled.
If you want to check the playing position or track name while playing, see page 16.
zVarious ways of playback Playing tracks repeatedly
You can play tracks repeatedly in three ways all repeat, single repeat, and shuffle repeat. MODEDELETE Bottom
Emphasizing bass (DIGITAL MEGA BASS)
Mega Bass function intensifies low frequency sound for richer quality audio reproduction. It affects only the sound from the headphones. Digital MEGA BASSAVLS Bottom
Press MODE while the recorder is playing an MD. Each time you press the button, the play mode indication changes as follows.
Press Digital MEGA BASS. Each time you press Digital MEGA BASS, the Mega Bass indication changes as follows.
Play mode indication Indication none (normal play) f (all repeat) f 1 (single repeat) SHUF f (shuffle repeat) Play mode All the tracks are played once. All the tracks are played repeatedly. A single track is played repeatedly. All the tracks are played repeatedly in random order. MEGA BASS indication Indication none Notes
Play mode Normal play Mega Bass (slight effect) Mega Bass (strong effect)
If the sound becomes distorted when emphasizing bass, turn down the volume. Mega Bass function does not affect the sound being recorded. Mega Bass does not function when a line cable is connected to the LINE OUT jack on the recorder.
Protecting your hearing (AVLS)
The AVLS (Automatic Volume Limiter System) function keeps down the maximum volume to protect your ears. Digital MEGA BASSAVLS Bottom
Checking the remaining time or the playing position

You can check the track name, disc name, etc. during playback.

DISPLAYEDITINSERT Bottom

AVLS indication
Press DISPLAY while playing. Each time you press DISPLAY, the display changes as follows.
Keep pressing AVLS for 2 seconds or longer. The AVLS indication lights up. When you try to turn the volume too high, AVLS appears in the display. The volume is kept to a moderate level.
Elapsed time Remaining time of the current track Remaining time after the current location
If you want to check the remaining time or the recording position while recording or in stop mode, see page 14.
Locking the controls (HOLD)
To prevent the buttons from being accidentally operated when you carry the recorder, use this function.
Connecting to a stereo system
Connect the LINE OUT jack of the recorder to the LINE IN jacks of an amplifier or a tape player with a line cable (RK-G129 or RK-G136, not supplied). The output is analog. The recorder plays the MD digitally and sends analog signals to the connected equipment.

Portable DAT recorder

Stereo system, etc. to LINE IN
Stereo mini-plug RK-G136 (not supplied)

R (red)

2 phono plugs L (white) RK-G129 (not supplied)
Slide HOLD in the direction of the C. On the recorder, slide HOLD to lock the controls of the recorder. On the remote control, slide HOLD to lock the controls of the remote control. Slide HOLD in the opposite direction of the arrow to unlock the controls.

to LINE OUT

The Mega Bass does not function or will be cancelled when the LINE OUT jack is connected with a line cable.

zEditing recorded tracks

You can edit your recordings by adding/ erasing track marks or labeling tracks and MDs. Premastered MDs cannot be edited. Notes on editing
Do not move or jog the recorder while EDIT is flashing in the display. You cannot edit tracks on an MD that is record-protected. Before editing tracks, close the tab on the side of the MD.
Keep pressing EDIT for 2 second or longer while playing the track you want to erase. Name flashes in the display, and the recorder plays the selected track repeatedly. Press = or + ((+ on the remote control) repeatedly until Erase flashes in the display. Press ENTER. Erase? and ENTER appear alternately in the display. To cancel erasing, press p or CANCEL.

Erasing tracks

To erase a track
You can quickly erase a recorded track. Note that once a recording has been erased, you cannot retrieve it. Make sure of the track you are erasing. pCHARGE (ENTER
To erase a part of a track
Add track marks at the beginning and the end of the part you want to erase, then erase the part.

To erase the whole disc

You can quickly erase all the tracks and data of the MD at the same time. Note that once a recording has been erased, you cannot retrieve it. Be sure to check the contents of the disc you want to erase. pCHARGE (ENTER

=+ T MARKCANCEL (at the bottom) DISPLAYEDITINSERT (at the bottom)
(+ =+ = pENTER T MARKCANCEL EDITINSERT T MARKCANCEL (at the bottom) DISPLAYEDITINSERT (at the bottom)

Adding a track mark

(+ = pENTER T MARKCANCEL EDITINSERT You can add track marks so that the part after the new track mark is counted as a new track. The track numbers will increase as follows. 1 Keep pressing EDIT for 2 seconds or longer during stop. Name flashes in the display. 1 Press = or + ((+ on the remote control) repeatedly until Erase flashes in the display. Press ENTER. Erase? and ENTER appear alternately in the display. To cancel erasing, press p or CANCEL. Press ENTER again. EDIT flashes in the display, and all the tracks will be erased. When erasing is complete, BLANK flashes in the display. 4 Track marking 5
Track numbers increase T MARKCANCEL Bottom
While playing or pausing an MD, press T MARK on the recorder at the point you want to add a mark. T. ON appears in the display, and a track mark is added. The track number will increase by one.
To add track marks while recording

Press T MARK.

T MARK on the remote control does not function during playback.

Erasing a track mark

When you record with analog (line) input, unnecessary track marks may be recorded where recording level is low. You can erase a track mark to combine the tracks before and after the track mark. The track numbers will change as follows. 1. 4 Erase a track mark 2 3
Press T MARK to erase the mark. T. OFF appears in the display. The track mark is erased and the two tracks are combined.
When you erase a track mark the name assigned to the mark are also erased.

Moving recorded tracks

You can change the order of the recorded tracks. Before moving Track A Track B Track C 3 Track D 4 Move track C from the third to the second track. Track B 3 Track D 4 (ENTER
Track numbers decrease PCAPS
After moving $ Track A Track C 1 2
T MARKCANCEL (at the bottom)

pCHARGE

PCAPS T MARKCANCEL =+
While playing the track with the track mark you want to erase, press P to pause. Find the track mark by pressing = slightly. For example, to erase the third track mark, find the beginning of the third track. 00:00 appears in the display.
T MARKCANCEL (at the bottom) DISPLAYEDITINSERT (at the bottom)

(+ = pENTER T MARKCANCEL EDITINSERT

Labeling recordings

You can name tracks during playback, discs during stop, and both during recording. Each name can be as long as 200 letters. For each disc, you can enter up to 1700 alphanumeric letters during playback or stop, and 500 alphanumeric letters during one recording. pCHARGE PCAPS (ENTER VOL +/
Keep pressing EDIT for 2 seconds or longer while playing the track you want to move. Name flashes in the display and the recorder plays the selected track repeatedly. Press = or + ((+ on the remote control) repeatedly until Move flashes in the display. Press ENTER. For example above, 003 n and n 003 appear alternately in the display. Press = or + ((+ on the remote control) repeatedly to select the destination track number. For example above, 003 n and n 002 appear alternately in the display. To cancel moving, press p or CANCEL. Press ENTER. The track moves to the selected destination track.
=+ T MARKCANCEL MODEDELETE DISPLAYEDITINSERT = (+ PCAPS pENTER VOL POSITION +/ DELETE T MARKCANCEL EDITINSERT
Labeling a disc during stop
Insert a disc. To label a disc that is already in the recorder, press p to stop. Keep pressing EDIT for 2 seconds or longer. Name flashes in the display.
Press ENTER. Press = or + ((+ on the remote control) repeatedly to select a letter and press ENTER to enter. The selected letter stops flashing and the cursor moves to the next input position. To Switch between capital letters, small letters, and marks/numbers. Move the cursor to the left or right. Change the letter to the one before/next one. Insert a blank space to type in a new letter. Delete a letter and move back all following letters to the left. Cancel labeling. Cancel labeling.
Press ENTER. The track is ready to be labeled. Follow steps 4 to 6 of Labeling a disc during stop above.
Labeling a track or a disc during recording

Press CAPS

Keep pressing EDIT for 2 seconds or longer during recording. Name flashes in the display. To label a track, press ENTER. To label a disc, press = or + ((+ on the remote control) Name repeatedly until flashes in the display, then press ENTER. Follow steps 4 to 6 of Labeling a disc during stop above.

VOL +/ =/+ INSERT DELETE

To cancel labeling, press CANCEL.

p CANCEL

Available characters
Capital and small letters of the English alphabet Numbers 0 to 9 ! " # $ % & ( ) *. ; < = > ? @ _ ` + ' , / : _ (space)
Repeat step 4 and enter all characters of the label name. Keep pressing ENTER for 2 seconds or longer. The track or disc is labeled.

To relabel recordings

Follow the steps corresponding to the labeling method until the disc or track is ready to be labeled. Enter a new character over the one you want to change, then keep pressing ENTER for 2 seconds or longer. Notes
You cannot relabel premastered MDs or label MDs that have not been recorded. The recorder is able to display, but cannot label using, Japanese Katakana characters.
Labeling a track during playback
Insert a disc and play the track you want to label. Keep pressing EDIT for 2 seconds or longer. Name flashes in the display.

zPower sources

Besides house current, you can use the recorder on: two nickel-cadmium rechargeable batteries NC-AA (supplied) two LR6 (size AA) alkaline batteries (not supplied) It is preferable to use the recorder on house current when recording for a long time.
Press CHARGE. Charge flashes, n appears in the display, and charging starts.
Charging the nickelcadmium rechargeable batteries
Before using the supplied NC-AA nickel cadmium rechargeable batteries for the first time, charge it in the recorder.
Full charging of the completely discharged rechargeable batteries takes about 2 hours. To cancel charging, press CHARGE. Notes
Do not charge any other rechargeable batteries than the supplied or optional Sony NC-AA nickel cadmium rechargeable batteries. Be sure to use the supplied AC power adaptor. Charging time may vary depending on the battery condition. When a rechargeable battery is charged for the first time or charged after a long period of disuse, battery life may be shorter than usual. Repeat discharging and recharging a few times. The battery life should return to normal. When the battery life of a fully charged rechargeable battery becomes about half the normal life, replace it. When carrying the rechargeable batteries, keep them in the supplied carrying case. It is dangerous to carry the batteries out of their case in your pocket or a bag together with metallic objects such as key rings, as this may cause a short circuit. Remove the rechargeable batteries from the recorder when they are not to be used for a long time.
Connect the supplied AC power adaptor. to a wall outlet AC power adaptor (supplied)
Insert the rechargeable batteries into the recorder and close the lid. pCHARGE Bottom
Using on nickel-cadmium rechargeable batteries

Be sure the rechargeable batteries are fully charged.

Battery life1)

Batteries Two NC-AA nickelcadmium rechargeable batteries Two LR6 (size AA) Sony alkaline dry batteries
Recording2) Approx. 3 hours

Playback Approx. 5 hours

Insert two fully charged nickelcadmium rechargeable batteries with correct polarity. Bottom

-----3)

Approx. 13 hours
The battery life may be shorter due to operating conditions and the temperature of the location. 2) When you record, use fully charged rechargeable batteries. 3) Recording time may differ according to the alkaline batteries.

Using on dry batteries

When to replace/charge the batteries
When the dry batteries or rechargeable batteries are weak, flashing b or LoBATT appears in the display. Replace the dry batteries or charge the rechargeable batteries. Notes
Do not use a new dry battery mixed with an used one. Do not mix different types of dry batteries. Stop the recorder before replacing batteries. When replacing the dry batteries, replace both batteries with new ones. The battery indication shows you when the batteries should be replaced or recharged. It does not necessarily reflect the exact remaining battery power. The battery indication of an alkaline battery may not accurately reflect the remaining battery power if it has not been used for a period of time.
Insert two LR6 (size AA) dry batteries (not supplied) with correct polarity. Bottom
zAdditional information Precautions

On safety

Do not put any foreign objects in the DC IN 4.5 V jack.

On the headphones

Road safety
Do not use headphones while driving, cycling, or operating any motorized vehicle. It may create a traffic hazard and is illegal in many areas. It can also be potentially dangerous to play your recorder at high volume while walking, especially at pedestrian crossings. You should exercise extreme caution or discontinue use in potentially hazardous situations.

On power sources

Use house current, nickel-cadmium rechargeable batteries, two LR6 (size AA) batteries. For use in your house: Use the AC power adaptor supplied with this recorder. Do not use any other AC power adaptor since it may cause the recorder to malfunction. Polarity of the plug The recorder is not disconnected from the AC power source (mains) as long as it is connected to the wall outlet, even if the recorder itself has been turned off. If you are not going to use this recorder for a long time, be sure to disconnect the power supply (AC power adaptor, dry batteries, rechargeable batteries, or car battery cord). To remove the AC power adaptor from the wall outlet, grasp the adaptor plug itself; never pull the cord.

Symptom No sound comes through the headphones.
Cause/Solution The headphones plug is not firmly connected. b Plug in the plug of the headphones firmly to the remote control. Plug in the plug of the remote control firmly to PHONES/REMOTE. Volume is too low. b Adjust the volume by pressing VOL +/. AVLS is on. b Switch AVLS off (page 16). Disc playing stopped before it came to the last track. b Press = repeatedly or open and close the lid once to go back to the beginning of the disc, and restart playing after checking the track number in the display. The recorder is placed where it receives continuous vibration. b Put the recorder on a stable place. A very short track may cause sound to skip. Strong magnetism from a television or such device is interfering with operation. b Move the recorder away from the source of strong magnetism. You pressed P after pressing = or +. b Press P before pressing = or +. The rechargeable battery has been inserted incorrectly or the AC power adaptor has been connected incorrectly. b Insert the battery correctly or connect the AC power adaptor correctly. The power sources have been disconnected during recording or editing, or the batteries have been exhausted. b Set the power sources again, or replace the exhausted batteries with new ones.
An MD is not played from the first track.

Playback sound skips.

Sound has a lot of static.
Cannot find the track marks. The rechargeable battery does not start charging. The lid does not open.

System limitations

The recording system in your MiniDisc recorder is radically different from those used in cassette and DAT decks and is characterized by the limitations described below. Note, however, that these limitations are due to the inherent nature of the MD recording system itself and not to mechanical causes. Symptom TrFULL appears even before the disc has reached the maximum recording time (60 or 74 minutes). TrFULL appears even before the disc has reached the maximum track number or recording time. Track marks cannot be erased. The remaining recording time does not increase even after erasing numerous short tracks. The total recorded time and the remaining time on the disc may not total the maximum recording time (60 or 74 minutes). Cause When 254 tracks have been recorded on the disc, TrFULL appears regardless of the total recorded time. More than 254 tracks cannot be recorded on the disc. To continue recording, erase unnecessary tracks.

Repeated recording and erasing may cause fragmentation and scattering of data. Although those scattered data can be read, each fragment is counted as a track. In this case, the number of tracks may reach 254 and further recording is not possible. To continue recording, erase unnecessary tracks. When the data of a track is fragmented, the track mark of a fragment under 12 seconds long cannot be erased. You cannot combine a track recorded in stereo and a track recorded in monaural; nor can you combine a track recorded with digital connection and a track recorded with analog connection. Tracks of under 12 seconds in length are not counted and so erasing them may not lead to an increase in the recording time. Normally, recording is done in minimum units of approximately 2 seconds. When recording is stopped, the last unit of recording always uses this unit of 2 seconds even if the actual recording is shorter. Likewise, when recording is restarted after the stop, the recorder will automatically insert a blank space amounting to 2 seconds before the next recording. (This is to prevent accidental erasing of a previous track whenever a new recording is started). Therefore, the actual recording time will decrease whenever a recording is stopped; a maximum of 6 seconds compared to the potential recording time for each stop. The fragmentation of data may cause sound dropout while searching because the tracks are played in higher speed than normal playback.
The edited tracks may exhibit sound dropout during search operations.

Messages

If the following error messages flash in the display window, check the chart below.
Error message BLANK ERROR
Meaning/Remedy An MD with no recording on it is inserted. b Insert a recorded MD. The disc is damaged or does not contain proper recording or editing data. b Reinsert the disc. If this fails, rerecord. There is no more space to record on the disc (less than 12 seconds available). b Replace the disc. You tried to enter more than 200 letters to label a single track or disc. You tried to enter a total of more than 1700 letters for track or disc names during playback or stop. You tried to enter a total of more than 500 letters for track or disc names during a single recording. b Enter the characters within the limit. The MD player is recording information (track start and end position) from the memory to the disk. b Wait until this process is completed. Do not expose the player to physical shock, nor disrupt power supply. You tried to operate the recorder while it was accessing the recorded data. b Wait until the message goes out (in rare cases, it may take 23 minutes). Voltage of the power supply is too high (The supplied AC power adaptor is not used). b Use the supplied AC power adaptor. The recorder is locked. b Slide HOLD against the arrow to unlock the recorder (page 17). Batteries are weak. b Charge the rechargeable batteries or replace the dry batteries (pages 23, 24). You tried to record when there is no indication in the display, with the recorder placed where it receives continuous vibration. b Put the recorder on a stable place, and start recording again.

Servo error ADIP read error Shock detected during write Shock detected during laser down No focus applied CRC error FG error Lower voltage due to overload Momentary interruption Lower power voltage in motor system Low power voltage in DSP
2-6. CLEARING THE ERROR INDICATION CODE AND TOTAL RECORDING TIME
After repair, reset the error indication code. Reset the total recording time when you have replaced the OP. 1. Go into the self-diagnostic mode. (See page 5.) 2. To reset the error indication code, slide REC c key when the code is displayed. (All data including 1st, N , N-1 and N-2 are reset.) 3. To reset the total recording time, slide REC c key when the time is displayed.

SECTION 3 DISASSEMBLY

Note : This set can be disassemble according to the following sequence.
Set Panel, Bottom Panel (SV) Assy, Front Connector LCD Module

Main Board

Panel (SV) Assy, Upper

Cabinet (SV) Assy

OP Block Assy

Holder Assy

Note : Follow the disassembly procedure in the numerical order given.

3-1. PANEL, BOTTOM

2 1.7x4.5, tapping

1 1.7x4.5, tapping

3 panel, bottom

switch

3-2. PANEL (SV) ASSY, FRONT

2 claw

1 knob (OPEN)

3 claw

5 panel (SV) assy, front

3-3. LCD MODULE

1 CN801

5 LCD module

3-4. CONNECTOR

1 CN601

2 CN702

3 CN701

3-5. MAIN BOARD

MAIN board

3-6. PANEL (SV) ASSY, UPPER

1 M1.4, precision

8 panel (SV) assy, upper
3 bearing (stopper) 4 claw 7

6 boss 5 claw 2

3-7. CABINET (SV) ASSY

1 MD, step

2 MD, step

4 cabinet (SV) assy

3 mechanism block assy

3-8. OP BLOCK ASSY

1 M1.4x3.0 locking 2 M1.4x3.0

3 shaft, main

adhesive sheet

OP block assy

4 flexible board
Notes for Installation of the OP Block Assy
Be careful to avoid contact of the lens with the chassis when installing the OP block assy.
Location of the Flexible Board

marked line

Align this portion of the flexible board with the marked line on the holder.

3-9. HOLDER ASSY

4 holder assy

1 claw

SECTION 4 TEST MODE

4-1. GENERAL

This set provides the Overall adjustment mode (Assy mode) that allows CD and MO disk to be automatically adjusted when in the test mode. In this Assy mode, the system discriminates between CD and MO disk and then automatically perform adjustments for them in sequence. If a fault is found, the system displays its location. Also, the Servo mode allows each individual adjustment to be automatically adjusted.
Mode No. 063 Test Description Low reflection CD focus bias CD test adjustment CD focus search adjustment CD EF balance adjustment CD ABCD level adjustment Laser CD read CD focus gain CD tracking gain CD focus bias Recording test 32 cluster full recording Recording shock 32 cluster full playback Check Write (00)

4-2. TEST MODE SETTING

See page 5.
(10) (15) (08) (30) (30) (00)

4-3. TEST MODE STRUCTURE

Test mode
+ or VOLUME + key Manual Mode VOLUME + key Servo Mode Audio Mode Mechanism Mode Power Mode
Check : Mode to display error rate and cluster. Write : Mode to permit adjustment (Default value given in paren theses). 1. Go into the test mode. 2. Press + or VOLUME + key to set the servo mode. Unit LCD display
= or VOLUME key Overall Adjustment Mode (Assy Mode) MODE key Hybrid Mode (ALL Mode) EDIT/ENTER key Key Check Mode

XX XX SERVO

Adjustment value (The data can be changed/written when flashing.) Mode No. (The lower two digits are indicated. Three digits are indicated on the remote controller LCD.)

4-4. MANUAL MODE

(1) Servo Mode How to Transfer in the Servo Mode:
Mode No. 046 Test Description Servo mode Offset correction value indication VC offset correction Focus bias correction FE offset correction ABCD offset correction All servo ON Temperature indication Laser power adjustment Laser CD/MO read adjustment Laser MO write adjustment Sled normal Sled intermittent Sled access MO test adjustment MO focus search adjustment MO read EF balance adjustment MO read ABCD level MO write EF balance adjustment MO write ABCD level Laser MO read adjustment MO focus gain MO tracking gain MO focus bias Low reflection CD test adjustment Low reflection CD focus search adjustment Low reflection CD EF balance adjustment Low reflection CD ABCD level Laser low reflection CD read Low reflection CD focus gain Low reflection CD tracking gain Check Write
3. Press the keys below to change the mode No. ( : Increases the one place. p : Sets the one place to 0. This key brings the ten place to 0 if the one place is 0. VOLUME + : Increases the ten place by 10 if the one place is 0. Increases the adjustment value if the one place is non-zero. VOLUME : Decreases the ten place by 10 if the one place is 0. Decreases the adjustment value if the one place is non-zero. Note) Press the REC c key is the mode 33 to shift to the mode 34. Press the ( key is the mode 34 to shift to the mode 35. How to Adjust in Servo Mode: 1. When the servo mode is set to the appropriate mode for each adjustment, the lower two digits of the mode No. and the value stored in EEPROM are displayed and flashing.

Indicate of AT error rate

39 OA 000a4F

Cluster value

ATT error value

39 OA 000b4F

Block error value

*1) The port is detected and the input is automatically selected. Contents changed : Contents to be changed when VOLUME + or key is pressed. Write : Mode to permit adjustment (Default value given in parentheses) 1. Go into the test mode. 2. Press + key or VOLUME + key and VOLUME + key in this turn to set the audio mode.
Indicate of block error rate Adjustment value (flashing) Mode No. (lower two digits)
Note) In normal service, do not adjust the system gain mode.

Unit LCD display

XX XX AUDIO
Adjustment value (The data can be changed/written when flashing.) Mode No. (Lower two digits are displayed.)
(3) Mechanism Mode How to Transfer the Mode in the Mechanism Mode: Mode No. Test Description Operation 200 FUNCTION Stepper control 210 MECHA test Initial position return 211 HEAD adjustment Operation variation changing (19) 212 REC position Recording head descent 220 RESUME Resume 221 RESUME CLEAR Resume clear/initialization ( ) : Default value 1. Go into the test mode. 2. Press + or VOLUME + and VOLUME + and VOLUME + in this turn to set the mechanism mode. Unit LCD display
3. Press the keys below to change the mode number. ( : Increases the one place. p : Sets the one place to 0. This key brings the ten place to 0 if the one place is 0. VOLUME + : Increases the ten place by 10 if the one place is 0. Increases the adjustment value if the one place is non-zero. VOLUME : Decreases the ten place by 10 if the one place is 0. Decreases the adjustment value if the one place is non-zero. How to Adjust in the Audio Mode 1. When the audio mode is set to the appropriate mode for each adjustment, the lower tow digits of the mode No. and the value stored in EEPROM are displayed and flashing. 2. Change the adjustment value with VOLUME + or key and press P key to write the new value to EEPROM. How to Check in the Audio Mode The audio mode allows the checks below to be performed: 1. For the mode numbers of 111 to 113, 115 and 116, pressing P key will activate a beep. But for the mode number of 117, pressing P key will not activate a beep. (No beep sounds when c HOLD switch is put on.) 2. For the mode numbers of 121 to 124, pressing Digital MEGA BASS key will display the DBB mode for the adjustment value. 1 : Mode : Mode : OFF (This will not be accepted when the LINE OUT jack is plugged. The display will be 13 : OFF when LINE OUT jack is plugged in Modes 1 and 2.)

XX XX MECHA

Adjustment value Mode No. (Lower two digits are displayed.)
3. Press the keys below to change the mode No. ( : Increases the one place. p : Sets the one place to 0. This key brings the ten place to 0 if the one place is 0. VOLUME + : Increases the ten place by 10 if the one place is 0. Increases the adjustment value if the one place is non-zero. VOLUME : Decreases the ten place by 10 if the one place is 0. Decreases the adjustment value if the one place is non-zero. How to Check in the Mechanism Mode The mechanism mode allows the checks below to be performed: 1. For the mode numbers of 200, 210 to 212, 220 and 221, pressing = key will move the optical pickup to the inner radius. Pressing + key will move the pickup to the outer radius. 2. For the mode numbers of 211 and 212, pressing P key will start aging. Pressing p key will stop aging. Mode No. 211. Sled aging with stepper at playback position. Mode No. 212. Sled aging with stepper at recording position. 3. With the mode number 210 selected, pressing P key will start aging with steeper at between home and recording positions. p key will stop aging.

12. If NG, set the servo mode. Perform automatic adjustment for the items not accepted (see the servo mode).
* For the mode numbers of 039 and 061, if the At error rate is NG, the following display is repeated:
4-6. HYBRID MODE, KEY CHECK MODE
These modes are not used in normal service.
At error value Mode No. (lower two digits)
7. If NG, set the servo mode. Perform automatic adjustment for the items not accepted (see the servo mode). 8. Insert a MO disk. 9. Press ( key. The system discriminates between CD and MO and performs automatic adjustment for the MO disk.
Mode No. (lower two digits)
MO Automatic Adjustment Mode No. Adjustment Description 032 MO read EF balance adjustment 033 MO read ABCD level 034 MO write EF balance adjustment 035 MO write ABCD level 037 MO focus gain 038 MO tracking gain cluster full recording 062 Recording shock cluster full playback 039 MO focus bias 042 Low refrection CD EF balance adjustment 043 Low refrection CD ABCD level 044 Laser low reflection CD read 046 Low refrection CD tracking gain

Ver 1.4 2001. 01

SECTION 5 ELECTRICAL ADJUSTMENTS

MO TRAVERSE ADJUSTMENT

Connection :
oscilloscope MAIN board SP526 (TE) AP503 (VC)
PRECAUTIONS FOR ADJUSTMENT
1) Perform all adjustments in the order given in the test mode. After adjusting, exit the test mode. 2) Use the following tools and measuring instruments. Test CD TDYS-1 (Part No. : 4-963-646-01) SONY MO disc available on the market Laser power meter LPM-8001 (Part No. : J-2501-046-A) Oscilloscope (Frequency band above 40 MHz. Perform the calibration of probe first before measuring.) Digital voltmeter 3) Unless specified othewise, supply DC 4.5V from the DC IN 4.5V jack. 4) Swtich, knob positions HOLD switch. OFF AVLS switch. NORM

LASER POWER CHECK

laser power meter
Optical pick-up objective lens
Adjustment Method : 1. Set the servo mode of the test mode (Mode : 000). 2. Press the ( key, and set the MO test adjustment mode (Mode : 030) using the VOLUME + or key. 3. Press the = or + key and move the optical pick-up to the center circumference. 4. Insert any MO disk available on the market. 5. When the ( key is pressed, the MO read EF balance adjustment mode (Mode : 032) will be set after MO focus search adjustment mode (Mode : 031). 6. Press the P key to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom. 7. Slide the REC key and set the MO write EF balance adjust ment mode (Mode : 034). 8. Press the P key to perform automatic adjustment, and check that the traverse waveform is symmetrical at the top and bottom.

Pin No. 100

Pin name AVSS PDO PCO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO AVDD ADRT ADRB AVSS SE TE AUX2 DCHG APC ADFG FO CONT XLRF CKRF DTRF APCREF LDDR TRDR TFDR DVDD FFDR FRDR FS4 SRDR SFDR SPRD SPFD FGIN TEST1 TEST2 TEST3 DVSS EFMO
I/O O I O I I I I I I I I I I O I O I I O O O O O O O O O I O
Pin Description Ground terminal. Not used (Open). Decoder PLL master clock PLL phase comparison output. Decoder PLL master clock PLL filter input. Decoder PLL master clock PLL filter output. Decoder PLL master clock PLL VCO control voltage input. Inputs peak hold signal for light amount signal from RF amplifier (IC501). Inputs bottom hold signal for light amount signal from RF amplifier (IC501). Light amount signal from RF amplifier (IC501). Input focus error signal from RF amplifier (IC501). Input of auxiliary signal from RF amplifier (IC501). Input of middle point voltage (+1.4 V) from RF amplifier (IC501). Not used (Open). Power supply (+2.8 V) for analog. Not used (Connect to +2.8 V). Not used (Connect to ground). Ground terminal. Input of sled error signal from RF amplifier (IC501). Input of tracking error signal from RF amplifier (IC501). Not used (Connect to +2.8 V). Not used (Connect to +2.8 V). Not used (Connect to +2.8 V). Input of ADIP dual FM signal from RF amplifier (IC501) (22.05 kHz 1 kHz). (TTL Schmit input) Focus control output to RF amplifier (IC501). Latch signal input from RF amplifier (IC501). RFCK clock (7.35 kHz) signal output. Serial data input from RF amplifier (IC501). Laser power setting signal input. Not used (Open). Tracking servo drive signal output (). Tracking servo drive signal output (+). Power supply (+2.8 V) for digital. Focus servo drive signal output (+). Focus servo drive signal output (). 176.4 kHz clock signal output (MCLK). Sled servo drive signal output (). Sled servo drive signal output (+). Spindle servo drive signal output (). Spindle servo drive signal output (+). FG signal input from spindle motor driver (IC761). Not used (Connect to ground). Not used (Connect to ground). Not used (Connect to ground). Ground terminal. EFM recording signal output.
IC801 CXP740010 (SYSTEM CONTROL) Pin No. 49 Pin name CLKCS XRST WRPWR TX SDI2 SDO2 SCK2 RFSW SSB SSB SCK DTCK SPCK WP OPEN CLOCK NI MH CHG SLEEP T.MARK REC PROTECT HOLD SYNC REC D. B. B XLINEDET INMU1 XTEST XDCIN KANA SE L XPHOTO SW XP CONT X2VCONT XREC LED MODE2 MODE1 XNIMH CHG XLCD ON INMU0 MRST VSS XTAL EXTAL LCD DS LCD XC D LCD DATA LCD SCK CHG MNT INLS HIDC MNT KEY R I/O O O O O I O O O I/O I/O I/O I I I O O I I I I I I I O I I O O O O O I O O O O I I I I Pin Description Not used (Chip select output to real time clock). Reset output. L : Reset Laser power switching signal output. Write data transfer timing output. Serial data input. Serial data output. Serial clock output. Power control output. SSB data signal input and output. SSB clock signal input and output. (Not used (Open).) Remote control data signal input/output. Not used (Open). Wake-up signal input from remote control key and this unit key. Detecting switch for opening and closing of the upper cover. L : Close Not used (CLOCK SET switch input). NI MH charge control output. Sleep signal output. T.MARK (Track mark) switch input. Not used (REC switch input). Disc write protect switch. H : Protect HOLD switch input (This unit). L : HOLD SYNCHRO REC switch input. DIGITAL MEGA BASS slide switch input. LINE IN (OPTICAL) detection input. L : LINE IN INMU signal output. Test mode terminal. L : Test mode Not used (Open). (DC input detect. L : DC IN) Not used (Open). ON/OFF control signal output of PHOTO circuit. Not used (Open). (Power control output. L : ON) Not used (Open). (Outputs H while operating with a lithium battery. 2V power control signal output. L : ON) Not used (Open). (REC LED control. L : ON) REC drive (IC901) control signal output. Not used (Open). (Battery charger control signal output. L : Charge) LCD ON/OFF control. L : ON INMU signal output. Microprocessor reset input. Ground. System clock (12 MHz). System clock (12 MHz). LCD communication strobe signal output to LCD driver. Com/data select signal output. LCD data output. Serial clock output. Battery charge voltage minitor input. Detecting switch for internal circuit of sleding. L : Internal circuit Voltage monitor DC input. Remote control key input.

SDTI SDTO LRCK BCK MCLK DIN XRST
74 TE 73 SE 79 Q581 (2/2) X601 22.5MHz DTRF CDRF XLRF APCREF FO CONT 16 OSCI 17 OSCO

AUDIO SECTION (Page 27)

10 APC XSTBY 19
SWDT 16 SCLK 17 XLAT 18 APCREF 12 FO CONT 20 Q581 (1/2)
11 AUTO POWER CONTROL Q571 LDON

FS4 90

SYSTEM CONTROL SECTION (Page 30)

TRACKING COIL

FOCUS/TRACKING COIL SLED/SPINDLE MOTOR DRIVE IC701 + DRIVE PSB TFDR 85 TRDR 88 FFDR 89 FRDR MNT 0 MNT 1 MNT 3 SWDT SCLK XLAT SRDT SENS XRST SQSY DQSY TX WRPWR FGIN SYSTEM CONTROL IC801 (1/3) T COUNT MODE 1 XSHOCK MODE 2 FOK PORT SDO 1 SCK 1 XLAT CLV STB SDI 1 RF SW SENSE RSI XRST SPOFF SQSY XPHOTOSW DQSY INLS TX XINTRECSW WRPWR PROTECT FGIN LDON 34 33

FOCUS COIL +

SLED SD+ MOTOR SD AOUT AOUTB PROTECT XINTREC SW INLS COM W V U

SPOFF RSI

92 SFDR 91 SRDR
SPINDLE MOTOR DRIVE ICVM 17 DRIVE STBY 14 FG 11 POWER SWITCH Q761

94 SPFD

SPINDLE MOTOR

CLV STB XRFSW

93 SPRD

2.8V MD MECHANISM 04

HIGH 3 VCC DET IC581
Signal path : PLAY(DIGITAL) : REC(DIGITAL)

4 2.8V

R-ch : same as L-ch.

XPHOTO SW

6-3. BLOCK DIAGRAM AUDIO SECTION
6-4. BLOCK DIAGRAM SYSTEM CONTROL SECTION

2.8V DIN

OPT CONTROL Q302 J301 LINE IN (OPTICAL)
KEYRMC SYSTEM CONTROL IC801 (3/3) WP 42 LCD RESET LCD SCK LCD DATA LCD XC D LCD STB POWER CONTROL IC901

SERVO SECTION (Page 26)

A/D, D/A CONVERTER IC301 41
FS25 REMKEY 24 KEY ON 6 XRST VC 67 VLGVLGVLGVB VB VL VL1 VB VB L40 49
SDTO LRCK BCK SDTI MCLK XRST
AUDIO I/F CONTROL RCH DAC

MIC AMP IC302 8

5 VCC (+2.8V) POWER SWITCH Q801(1/2)
LCD MODULE WITH SWITCH UNIT

KEY ON 91 MRST 38

SERVO SECTION VDD (Page 26) (+2.9V)

+2.8V +2.8V UNREG

CDTI CDTO CCLK KCS PD

57 KEY KEY HOLD 36 XLCD

SLEEP 17

72 SLEEP

MIC 2.5V

29 REG IC304

23 INMU INMUQ801 (2/2)

J303 MIC (PLUG IN POWER)

D905 IC971 DC-DC CONVERTER 2 VOUT VCE 1 EXT 5 IC972 REG DVOUT VIN 3 Q971 RECHARGEABLE BATTERY (NC-AA) 700mAh 2.4V Q903

5 XCE IN 2 2.8V

S804 SYNCHRO REC OFF

X801 12MHz

41 EXTAL 40 XTAL 22 SYNC REC

MIC2.5V

VDD 61 INMUQ901
ON R-CH J302 LINE OUT S805 Digital MEGA BASS S803 T. MARK R-CH
SYSTEM CONTROL IC801 (2/3) 6 XPD ADA XCS ADA SCK 2 SDI2 SDO2 BEEP 81 AMUTE 93 OPT CONT XJACK DET OPT DET XMIC DET XLINE DET 24

17 LINE/HP AMP IC303

23 DBB NI MH CHG T.MARK FFCLR 95 WP FFCLR 69 WAKEO 71 WAKE INMRFQCHG
EEPROM IC803 CS DO DI SCK 4 2

23 MUTE

96 XCSNV

VCOM 6

VOUT 18

IC761 BA6966FV-E2

VOUT 20 WOUT 19 N.C 18 VM 17 VCC 16 RIB 15 STBY 14 BRK+ BRKFG 11

STAND-BY

PREDRIVE UP-DOWN DISTRIBUTION EX-OR DRIVING SIGNAL COMPOSITION LOGIC
TIMING SELECTOR START CONTROL LOGIC SLOBE WAVE COMPOSITION

PHASE CONTROL

8 CSL1

9 CSL2

10 GND

UOUT RF

IC803 AK6420AM-E

DATA REGISTER

INSTRUCTION REGISTER

R/W AMPS AND AUTO ERASE

EEPROM 2048bit 128x16 ADD BUFFER DECODER

CS 1 SK 2 DI 3

INSTRUCTION DECODE, CONTROL AND CLOCK GENERATION

8 VCC VPP SW

VPP GENERATOR 7 RDY/BUSY 6 RESET

DO GND

IC901 MPC18A35FTA
CHGSW PGND2 PGND2 VLG20 VLG20 INM4 VLIM VG2 L2H L2H L2L L2L VB VB VLI VLI

52 DCIN

VR2 GENERATOR

RF4 55

POWER SW PRE-DRIVER

36 PSLPSAM

DGND 56 DCIN DC IN 57 VGC1H 59 C1L 60 VDD 61 HB 62 HA 63 EFM 64 LPGNDVC REMKEY 24 KEYON SETUP DC/DC REGULATOR EFM VLG2 PRE-DRIVER CHARGE PUMP VLG1 PRE-DRIVER 34 VAMVB 32 VB

DRIVE CONTROL

31 LLLPGND 27 PGND 26 REMGND
SYNC WAKEO FFCLR WAKE SLEEP

OSC SYSTEM CONTROL

23 INMU

SAW TOOTH

22 DTCDTCVBSEL
REF SELECT BANDGAP REFERENCE
SUB REFERENCE LOW VC DETECT 19 VLG1

LICHG MODE1 MODE2 CHG

INM2 INP2 VLG2

INM1 INP1S

SECTION 7 EXPLODED VIEWS
NOTE: The mechanical parts with no reference number in the exploded views are not supplied. Items marked * are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. Abbreviation CND : Canadian model FR : French model -XX and -X mean standardized parts, so they may have some difference from the original one. Color Indication of Appearance Parts Example : KNOB, BALANCE (WHITE). (RED) N Parts Color Cabinets Color Accessories and packing materials are given in the last of this parts list. N The components identified by mark ! or dotted line with mark. ! are critical for safety. Replace only with part number specified. Les composants identifis par une marque ! sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi.

M2 1-763-174-21 MOTOR, DC (LOADING) M3 A-3311-972-A MOTOR BLOCK ASSY, SLED (SLED) ************************************************************* ACCESSORIES & PACKING MATERIALS ******************************** ! ! ! ! ! ! * 1-418-095-11 1-418-096-11 1-418-110-11 1-467-009-21 1-467-550-11 1-473-116-35 1-569-007-11 1-779-504-11 3-686-294-02 3-866-346-11 ADAPTOR, AC (AC-MZR37) (UK) ADAPTOR, AC (AC-MZR37) (AUS) REMOTE CONTROL UNIT (SZR-S17) ADAPTOR, AC (AC-E455) (US,CND) ADAPTOR, AC (AC-E455A) (E,JE) ADAPTOR, AC (AC-E455D) (AEP,FR,EE) ADAPTOR, CONVERSION 2P (E,JE) CONNECTOR, OPTICAL (MC-918) IC LABEL (INDUSTRY CANADA) (CND) MANUAL, INSTRUCTION (ENGLISH) (US,AEP,UK,EE,AUS,E,JE)
< NETWORK RESISTOR > RB301 RB302 RB501 RB801 1-233-971-11 1-233-965-11 1-233-963-21 1-233-979-11 RES, NETWORK (CHIP TYPE) 47K RES, NETWORK (CHIP TYPE) 4.7K RES, NETWORK (CHIP TYPE) 2.2K RES, NETWORK (CHIP TYPE) 1M < SWITCH > S801 S802 1-762-805-21 SWITCH, PUSH (1 KEY) (OPEN1) 1-572-467-61 SWITCH, PUSH (1 KEY) (OPEN2)
3-866-346-21 MANUAL, INSTRUCTION (ENGLISH,FRENCH) (CND,AEP,FR) 3-866-346-31 MANUAL, INSTRUCTION (GERMAN,DUTCH) (AEP) 3-866-346-41 MANUAL, INSTRUCTION (ITALIAN) (AEP) 3-866-346-51 MANUAL, INSTRUCTION (PORTUGUESE, SPANISH) (AEP,JE) 3-866-346-61 MANUAL, INSTRUCTION (SWEDISH,FINNISH) (AEP) 3-866-346-71 MANUAL, INSTRUCTION (RUSSIAN,POLISH, CZECH,HUNGARIAN) (EE) 3-866-346-81 MANUAL, INSTRUCTION (TRADITIONAL CHINESE,SPANISH, KOREAN) (E,JE) 8-953-278-90 HEADPHONE MDR-A34SP SET (US) 8-953-304-90 RECEIVER MDR-E805SP SET (EXCEPT US)
The components identified by mark ! or dotted line with mark. ! are critical for safety. Replace only with part number specified.
Les composants identifis par une marque ! sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi.

Sony Corporation

9-926-952-12
Personal A&V Products Company
99D047026-1 Printed in Singapore C1999. 4 Published by Quality Engineering Dept. (Shinagawa)

Ver 1.2 1999. 06

SUPPLEMENT-1
File this supplement with the service manual.
Subject : Korean model Addition
Korean model is added to the MZ-R37. This supplement-1 describes only differences from the MZ-R37 (E) model. Refer to the service manual for MZ-R37 (9-926-952-) for other information.
ACCESSORIES & PACKING MATERIALS Page

Ref. No. Part No.

MZ-R37 (E model)
Description Remark Part No.

MZ-R37 (Korean model)

Description Remark
1-467-550-11 ADAPTOR, AC (AC-E455A) 1-569-007-11 ADAPTOR, CONVERSION 2P

9-926-952-81

Personal Audio Company
99F04013-1D Printed in Japan C1999. 6 Published by General Engineering Dept.

Ver 1.3 1999. 11

TABLE OF CONTENTS 1. PRINTED WIRING BOARD EXCEPT US MODEL .. 3 2. PRINTED WIRING BOARD US MODEL ... 7 3. SCHEMATIC DIAGRAM MAIN SECTION (1/3) .. 12 4. SCHEMATIC DIAGRAM MAIN SECTION (2/3) .. 15 5. SCHEMATIC DIAGRAM MAIN SECTION (3/3) .. 18 6. ELECTRICAL PARTS LIST.. 21 7. CORRECTIONS.. 26

SUPPLEMENT-2

Subject : 1. Change of Main Board 2. Corrections of Exploded Views and Electrical Parts List

(ECN-DAB00030)

This supplement-2 for service manual contains the new type of main board. For other information, see the released service manual (9-926-952-S). When performing service and inspection, check the suffix of the part number of the main board. Note : US model Refer to the service manual for a board with a suffix number of -23 when repairing a board with with a suffix number of -21 or -22 for the main board. Note : Except US model Refer to the service manual for a board with a suffix number of -13 when repairing a board with with a suffix number of -12 for the main board.

MAIN BOARD (SIDE A)

MAIN Board Part No. Former type :1-673-136-11 New type :1-673-136-13 (Except US Model) 1-673-136-23 (US Model)
1. PRINTED WIRING BOARD EXCEPT US MODEL
R412 TP334 TP331 TP332 TP809 TP805 C427 R829 TP7114 TP7108 TP7109 TP7107 TP7105 D406 TP7104 TP7103 R706 TP7116 TP7112 TP7110 TP7101 TP7602 TP7102 R764 TP741

TP7106

J301 LINE IN (OPTICAL)

R405 TP319 J301

TP318 TP317 IC802 TP1 C330 C805 TP312 R305 TP810 TP802
R767 TP7604 R766 TP7603 TP7601 R762 R761 R763 D701 R702 R819 R818 TP742
Semiconductor Location Ref. No. D401 D402 D403 D406 D906 IC802 IC803 IC972 J301 Q302 Q821
SP546 TP906 R502 R501 TP5102 SP699 TP5105 TP5104

TP801 C614 TP807

TP316 C306 TP315 TP321 TP322 TP313

Q302 R302 C307

Location E-4 H-3 G-4 B-3 H-11 C-4 E-5 H-12 D-2 D-4 H-4

R304 D401

TP534 SP529 R5 IC4 SP528 SP521 R508 SP526 R506 SP510 C314 RB501

R507 R505 R504

SP535 R574

TP323 TP324

C304 L301 R801

C207 C220 C204

R119 R102 R202 C107 C310
C315 C316 RC208 CR222 C317

L302 L303

FB463 R463 FB464 R464

S801 (OPEN1)

SP623 SP624 TP743 SP604
SP603 SP601 TP5112 SP602 TP5114
TP5106 TP5111 TP5113 TP5115

R403 C321 TP346 C407 R401 R310 C108 R122

SP536 SP537

TP5107 TP5109 TP5116 TP5117 TP902 D906 C909 L904 C914 T901 L905 LIC1 C973 TP901 TP909
TP804 R821 Q821 TP803 C822
TP5121 TP5118 TP5119 TP5122 TP5120 R926 R927 TP806 R803 R804 TP8101

R811 R810 R822

R910 R902 R904

R422 R905

R820 C412 TP908 FB402 C411 TP343 TP808 R411 TP342 R316 CR315 R410 FB401 TP341 C821 D04 5
TP8104 R415 TP8110 TP8108 TP8102 TP8111 TP8106 TP8107 C919 TP8112 TP8109 R418 S802 TP8103 (OPEN2)

R573 R572

1-673-136-
Semiconductor Location Ref. No. D404 D407 D408 D409 D741 D742 D801 D901 D902 D903 D904 D905 D907 IC301 IC302 IC303 IC304 IC501 IC601 IC602 IC701 IC761 IC801 IC901 IC951 IC971 Q571 Q741 Q742 Q761 Q801 Q901 Q902 Q903 Q906 Q971 Location H-3 D-2 F-2 I-4 B-8 C-8 H-6 H-12 I-12 H-9 H-12 I-10 H-12 E-4 C-3 F-4 B-5 E-9 F-7 F-5 C-10 D-7 C-6 H-8 B-6 I-11 E-10 C-8 D-8 D-7 H-6 I-6 H-11 H-13 H-11 I-12

MD MECHANISM BLOCK

J303 MIC (PULG IN POWER)
C743 DC741 L706 C701 LCICCL16 R957 R956 CIC951 R807 R825 R805 IC304 C416 C217 C4 C955 OVER WRITE HEAD CN702 CN701 RR319 C327 R5 C807 C323 C322 R309 R215 R216 R115 R116 R218 C117

R824 R961 R962 C962

C825 R815 C953 R814 R952 C769 R768 C423

C218 C118

AP403 RB301 C4 IC1 C312 C111 R113 C214

(CHASSIS)

R118 C320 C113 C116 R117 C114

QCC762 C764 C770 R851

C50 45

XIC801 35

C212 R111 R112

C211 R213

D15 ICCC763 CQ761 C766 C767 C768 11

AP906 L702

Q1 R608 C609 C610 C611 R603 C604 R604 C65 R611 R609 C607 C10 C20 C425 R854

R212 D407

FB406 L707 AP535 C515 C75 C517 R511 AP532 R512 CC513 CL601 R925 R510 C512 C514

-1 -2 C508 C507 C511

Q571 AP36 40

ICR420 C206 C106

25 C105 C205 R203 R205 R209

C203 C222 C122

R20 RB302 R103

30 IC501

BP801 (TEST)

R308 C418

OP SERVICE ASSY

J302 LINE OUT

RECHARGEABLE BATTERY (NC-AA) 700mAh 2.4V
APC506 AP508 AP509 C520 C504 AP503 R503 CN501 C505 C902 LC901 LL501 C503 C906 CC912 15
5 IC26 FB462 FB461 R607 R462 CR461 C615 R901

16 R303

D408 C219 R221

R207 R206 R220 C201

24 CX601 C931 C915 C461 C15

20 IC303

R106 R107 C101

C121 C221

C404 C405

CABINET ASSY (GND)

(CHASSIS) C913 AP903 D904 C924 R915 R923 R916 Q902 Q906

AP22 C60 C5

R924 C935
AP904 AP905 C930 J901 DC IN 4.5V
R606 S803 T.MARK -2 -1 FB404 C810

S881 DISPLAY

S882 MODE D801 R816

Q903 D907

S805 Digital MEGA BASS R832 RAPDS804 ON OFF SYNCHRO REC D409 C932 1

J304 PHONES/REMOTE

FB403 1

R881 R417 C811 R416

AP5118 C920 D903

Q801 CN801 12

4 R908

IC971 CR973

C929 R912

FB405 C403

C922 R917

D902 D901 Q971

04 LCD MODULE WITH SWITCH UNIT
2. PRINTED WIRING BOARD US MODEL
Ref. No. D404 D407 D408 D409 D741 D742 D801 D901 D902 D903 D904 D905 D907 IC301 IC302 IC303 IC304 IC501 IC601 IC602 IC701 IC761 IC801 IC901 IC951 IC971 Q571 Q741 Q742 Q761 Q801 Q901 Q902 Q903 Q906 Q971 Location H-3 D-2 F-2 I-4 B-8 C-8 H-6 H-12 I-12 H-9 H-12 I-10 H-12 E-4 C-3 F-4 B-5 E-9 F-7 F-5 C-10 D-7 C-6 H-8 B-6 I-11 E-10 C-8 D-8 D-7 H-6 I-5 H-11 H-13 H-11 I-12

26 R828

R24 RB302 R103

5 IC602

20 R303
24 CX601 C605 C931 C915 C26 FB462 FB461 R607 R462 C12 R461 C615 R13
3. SCHEMATIC DIAGRAM MAIN SECTION (1/3) Refer to page 15 for Waveforms.
Difference of Schematic Diagram (US Model)
(Page 19) (Page 15) (Page 15) Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. % : indicates tolerance. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi.

(Page 19)

(Page 15)

(Page 15) (Page 15)

4. SCHEMATIC DIAGRAM MAIN SECTION (2/3)
(Page 20) (Page 19) (Page 14) (Page 14) (Page 14)

(Page 14)

2.8Vp-p
VOLT/DIV : 1V AC TIME/DIV : 5msec

1-216-821-11 METAL CHIP 1-216-845-11 METAL CHIP
< NETWORK RESISTOR > RB301 RB302 RB501 RB801 1-233-971-11 1-233-965-11 1-233-963-21 1-233-979-11 RES, NETWORK (CHIP TYPE) RES, NETWORK (CHIP TYPE) RES, NETWORK (CHIP TYPE) RES, NETWORK (CHIP TYPE) < SWITCH > S801 S802 S803 S804 S805 S881 S882 1-762-805-21 1-572-467-61 1-771-138-21 1-762-078-11 1-771-138-21 SWITCH, PUSH (1 KEY) (OPEN1) SWITCH, PUSH (1 KEY) (OPEN2) SWITCH, KEY BOARD (T.MARK) SWITCH, SLIDE (SYNCHRO REC) SWITCH, KEY BOARD (Digital MEGA BASS) 47K 4.7K 2.2K 1M
1-771-138-21 SWITCH, KEY BOARD (DISPLAY) 1-771-138-21 SWITCH, KEY BOARD (MODE) < FILTER >
1-216-864-11 METAL CHIP 1-216-864-11 1-216-864-11 1-216-829-11 1-216-864-11 1-218-867-11 1-218-871-11 1-216-829-11 1-216-864-11 1-216-864-11 1-216-863-11 1-218-911-11 1-218-895-11 1-216-864-11 1-216-815-11 1-216-809-11 1-217-905-11 1-216-833-11 1-216-864-11 1-217-905-11 1-216-863-11 1-216-829-11 1-216-849-11 1-216-859-11 1-216-855-11 1-218-915-11 METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES-CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP METAL CHIP RES-CHIP RES-CHIP METAL CHIP RES-CHIP RES-CHIP METAL CHIP METAL CHIP RES-CHIP METAL CHIP METAL CHIP
1-416-405-21 FILTER, CHIP EMI (COMMON MODE) < VIBRATOR >

X601 X801

1-767-722-21 VIBRATOR, CRYSTAL (22.5MHz) 1-767-179-31 VIBRATOR, CERAMIC (12MHz)
1-218-915-11 METAL CHIP 1-218-915-11 METAL CHIP
7. Corrections EXPLODED VIEWS
7-3. MECHANISM DECK SECTION

INCORRECT

Ref. No. Part No. Description Remark Part No. X-4951-517-1

CORRECT

Description HEAD ASSY, OP Remark
A-3328-294-A OP SERVICE ASSY
ELECTRICAL PARTS LIST/MISCELLANEOUS Page INCORRECT
Ref. No. X122 Part No. Description Remark Part No. 1-767-179-31 X-4951-517-1
Description VIBRATOR, CERAMIC (12MHz) HEAD ASSY, OP Remark
1-760-174-11 VIBRATOR, CERAMIC (12MHz) A-3328-294-A OP SERVICE ASSY
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifis par une marque 0 sont critiques pour la scurit. Ne les remplacer que par une pice portant le numro spcifi.

9-926-952-82

Personal Audio Division Company
99K0486-1 Printed in Japan 1999. 11 Published by General Engineering Dept.