This manual is for models MZR90 and MZ-R91. The MZ-R90 appears in the instructions for illustration purposes. Though they differ in appearance, the models share the same functions and are operated in the same way. For detailed specifications, see page 50.

MZ-R90

About the i/LINE OUT jack on the recorder. The parameter (AUDIO OUT) for the i/LINE OUT jack must be set to HeadPhone if you want to connect headphones other than the supplied set, or to LINE OUT if you want to connect another component to the recorder through a line cable. There is no need to make this when using the supplied headphones with remote control since it is done automatically. To set the AUDIO OUT parameter for the i/LINE OUT jack, do the following procedure:
1 Press the jog lever, flip until AUDIO OUT flashes in the display, and then press the lever again. 2 Flip the jog lever until HeadPhone or LINE OUT flashes in the display. 3 Press the jog lever when the item you want to select is flashing.

MZ-R91

When the AUDIO OUT parameter is set to LINE OUT, the VOL +/ buttons and the Mega Bass function become inoperative. To make them operative, set the AUDIO OUT parameter to HeadPhone. The AUDIO OUT parameter is automatically set to HeadPhone when you turn off the power.
How to use the jog lever.

Flip to select

Push to enter
The jog lever can be used to perform various operations during playback, recording, and editing, as well as when the recorder is stopped. Flip the jog lever to select an item in the display. Then press the jog lever to enter your selection.

Table of contents

Recording an MD right away!.. 8 Playing an MD right away!.. 11 Various ways of recording.. 14
Two ways of connecting to a sound source..14 Recording with digital (optical) input (optical cable required).15 To start/stop recording in sync with the source player (Synchro-recording)..16 Recording from a microphone..17 Recording in monaural for double the normal recording time.17 Adjusting the recording level manually (Manual recording).18 Checking the remaining time or the recording position..19 On the recorder...19 On the remote control...21 Setting the clock to stamp the recorded time..22 Copying CD text information while recording (Joint Text).23
Various ways of playback.. 25
Selecting a track directly...25 Playing tracks repeatedly...25 On the recorder...25 On the remote control...26 Emphasizing bass (DIGITAL MEGA BASS)..27 Protecting your hearing (AVLS)...27 Checking the remaining time or the playing position..28 On the recorder...28 On the remote control...29 Locking the controls (HOLD)...29 Connecting to a stereo system (LINE OUT)..30

Optical cable (with an optical or an Line cable (with 2 phono plugs or optical-mini plug)(page 15) a stereo-mini plug)(page 8) 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 32).
Signal from the Digital source
Recorded track Marked (copied) automatically numbers at the same positions as the source. after more than 2 seconds of blank or low-level segment1). when the recorder is paused while recording. You can erase unnecessary marks after recording. (Erasing a track mark, page 32). Recorded sound level Same as the source. Can also be adjusted manually (Digital REC level control) (Adjusting the recording level manually (Manual recording), page 18).
Adjusted automatically. Can also be adjusted manually (Adjusting the recording level manually (Manual recording), page 18).

1) When

recording a CD or an MD, track numbers are automatically marked in the order of the original
Track marks may be copied incorrectly: when you record from some CD players or multi disc players using digital (optical) input. when the source is in shuffle or program play mode while recording using digital (optical) input. In this case, play the source in normal play mode. when recording BS or CS programs through digital (optical) input.
Recording with digital (optical) input (optical cable required)
Connect to a digital source using an optical cable (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-5AB etc. (not supplied) POC-5B etc. (not supplied) Portable CD player, etc. Optical miniplug
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.

You can monitor the sound during recording. Connect the supplied headphones with remote control on to the CD text connecting cable and adjust the volume by pressing the VOL +/ buttons on the recorder.
Connect the supplied headphones with remote control
The CD text copying function can only be used with component (D-EJ01) with the logo shown below.

Various ways of playback

Selecting a track directly
You can select a desired track directly by using the jog lever.
Playing tracks repeatedly
You can play tracks repeatedly in three ways all repeat, single repeat, and shuffle repeat.
Flip the jog lever until the desired track appears in the display, and then press the jog lever.

Press to enter

While the recorder is playing or stopped, press the jog lever, flip until PLAY MODE flashes in the display, and then press the lever again. Flip the jog lever to select the play mode, and then press the lever. Each time you flip the lever, the display item indicated by A changes as shown in the table below. Pressing the jog lever while A is flashing causes the play mode to change. The new mode then appears in the window indicated by B.
The selected track name appears in the display and the recorder starts playing by pressing the jog lever. If the track has no name, the track number appears in the display.
If you do step 1 while the recorder is shuffling the tracks, shuffle play starts from the track that you selected.

Shuffle

Indication A/B No Repeat/
Play mode All the tracks are played once.
Indication A/B AllRepeat/F 1 Repeat/F 1 Shuffle/ F SHUF
Play mode All the tracks are played repeatedly. A single track is played repeatedly. After the currently selected track finishes playing, the remaining tracks are played repeatedly in random order.
Indication F SHUF (shuffle repeat)
Play mode After the currently selected track finishes playing, the remaining tracks are played repeatedly in random order

PLAYMODE

Press PLAYMODE while the recorder is playing or stopped. Each time you press the button, the play mode indication changes as follows.
Display window on the remote control Play mode indication

Indication

Play mode
none (normal play) All the tracks are played once. F (all repeat) F1 (single repeat) All the tracks are played repeatedly. A single track is played repeatedly.
Emphasizing bass (DIGITAL MEGA BASS)
The Mega Bass function intensifies low frequency sound for richer quality audio reproduction. It affects only the sound from the headphones.

If the sound becomes distorted when emphasizing bass, turn down the volume. The Mega Bass function does not affect the sound being recorded. The Mega Bass function becomes inoperative when the AUDIO OUT parameter for the i/LINE OUT jack is set to LINE OUT. If you attempt to set the Mega Bass function at this time, SORRY appears in the display. The Mega Bass function, however, is operative at all times when the supplied remote is connected to the i/LINE OUT jack.
Protecting your hearing (AVLS)
Press the jog lever, flip until MEGA BASS flashes in the display, and then press the lever again. Flip the jog lever to select the play mode, and then press the lever. Each time you flip the lever, A and B change as follows.
The AVLS (Automatic Volume Limiter System) function keeps down the maximum volume to protect your ears.

BASS 2

Press the jog lever, flip until AVLS flashes in the display, and then press the lever again. Flip the jog lever until AVLS ON flashes in the display, and then press the lever again. When you try to turn the volume too high, AVLS appears in the display. The volume is kept to a moderate level.
Indication A/B BASS 0/ BASS 1/ BASS BASS 2/ BASS
Play mode Normal play Mega Bass (moderate effect) Mega Bass (strong effect)
Checking the remaining time or the playing position
You can check the track name, disc name, etc. during playback.
A Track number Track name1) Disc name1)
B Elapsed time Remaining time of the current track Remaining time after the current location Recorded time2)
While the recorder is playing, press the jog lever, flip until DISPLAY flashes in the display, and then press the lever again. Flip the jog lever until the information you want flashes in the display. Each time you flip the lever, the display changes as follows.

Recorded date2)

If you want to check the remaining time or the recording position while recording or in stop mode, see page 19. The display that appears on the remote control is different from the ones on the recorder. See On the remote control (page 29) to check the display that appears on the remote control.
A LapTime 1 Remain AllRemain RecDate
Locking the controls (HOLD)
To prevent the buttons from being accidentally operated when you carry the recorder, use this function.
Press DISPLAY while playing. Each time you press DISPLAY, the display changes as follows.
Display window on the remote control HOLD
E Elapsed time Track name1) Disc name1)
Track number Track number The number of tracks in the disc

Recorded time2)

Slide HOLD in the direction of the. 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.
If you want to check the remaining time or the recording position while recording or in stop mode, see page 21. The display that appears on the recorder is different from the ones on the remote control. See On the recorder (page 28) to check the display that appears on the recorder.

x T MARK

T MARK
While playing the track you want to erase, press the jog lever so that EDIT flashes in the display, and then press the lever again. : Name flashes in the display, and the recorder plays the selected track repeatedly. Flip the jog lever until : Erase flashes in the display, and then press the lever.
While the recorder is stopped, press the jog lever so that EDIT flashes in the display, and then press the lever again. : Name flashes in the display. Flip the jog lever until : Erase flashes in the display, and then press the lever. All Erase? and PushENTER appear alternately in the display. To cancel erasing, press x or T MARK.
Press the jog lever again. TOC Edit flashes in the display, and all the tracks will be erased. When erasing is complete, BLANKDISC appears in the display.

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.

Erase a track mark

Adding a track mark
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.

Track marking

Track numbers decrease
Track numbers increase. T MARK
While playing the track with the track mark you want to erase, press X 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. MARK appears in the display for 2 seconds. Press T MARK to erase the mark. MARK OFF appears in the display. The track mark is erased and the two tracks are combined.
While playing or pausing an MD, press T MARK on the recorder at the point you want to mark. MARK 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 on the recorder at the point you want to add a track mark.

When you erase a track mark, the date, time, and name assigned to the mark are also erased.

Moving recorded tracks

You can change the order of the recorded tracks.
Example Move track C from the third to the second track. Before moving
Flip the jog lever to select the destination track number. For the example above, MV 003 t 002 appears in the display. To cancel moving, press x or T MARK. Press the jog lever again. The track moves to the selected destination track.

DISPLAY Control

After moving

Jog lever x

Press DISPLAY for 2 seconds or more while playing the track you want to move. : Name flashes in the display and the recorder plays the selected track repeatedly. Press the control towards. or towards N > repeatedly until : Move appears in the display. Press x. For the example above, MV 003 t 003 appears in the display. Press the control towards. or towards N > repeatedly to select the destination track number. For the example above, MV 003 t 002 appears in the display. To cancel moving, press DISPLAY for 2 seconds or more. Press x again. The selected track moves just before the destination track.
While playing the track you want to move, press the jog lever so that EDIT flashes in the display, and then press the lever again. : Name flashes in the display and the recorder plays the selected track repeatedly. Flip the jog lever until : Move flashes in the display, and then press the lever. For the example above, MV 003 t 003 appears in the display.

Labeling recordings

You can name tracks during playback, discs during stop, and both during recording. Each name can be as long as 200 letters. Each disc can hold up to 1700 alphanumeric letters during playback or stop.
Flip the jog lever to select a letter and press the lever to enter. The selected letter stops flashing and the cursor moves to the next input position. Press X To Switch between capital letters, small letters, marks / numbers, and phrases.1) 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 pressing both buttons together. Delete a letter and move back all following letters to the left pressing both buttons together. Cancel labeling. Cancel labeling.

VOL +/./>

./> END SEARCH VOL +/
END SEARCH/ VOL + END SEARCH/ VOL
Labeling a disc during stop
Insert a disc. Press the jog lever so that EDIT flashes in the display, and then press the lever again. : Name flashes in the display. Press the jog lever. The disc is ready to be labeled.

To cancel labeling, press DISPLAY for 2 seconds or more. Note
When the recording is stopped while labeling a track or a disc during recording, or when the recording moves on to the next track while labeling a track, the input at that point is entered automatically.
If phrases are stored in the phrase bank, the first phrase stored appears in the display(page 39).
Repeat step 4 and enter all characters of the label name. To cancel labeling, press DISPLAY for 2 seconds or more. Keep pressing the x for 2 seconds or more. The track or disc is labeled.
Available characters Capital and small letters of the English alphabet Numbers 0 to 9 ! " # $ % & ( ) *. ; < = > ?
@ _ ` + ' , / : _ (space)
Insert a disc and play the track you want to label. Press DISPLAY for 2 seconds or more. : Name flashes in the display. Press x. The track is ready to be labeled. Follow steps 4 to 6 of Labeling a disc during stop (page 35).
Relabeling 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 press the jog lever (keep pressing x for 2 seconds or more on the remote control).
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. The recorder cannot rewrite a disc or track name of more than 200 letters that was created by another device.
Press DISPLAY for 2 seconds or more during recording. : Name flashes in the display.
Storing phrases frequently used in labeling (Phrase Bank)
Phrases that you often use in track or disc labeling can be stored in the recorders memory. There are two ways to store phrases: storing a phrase while performing the labeling procedure, or storing a phase using the EDIT menu. Approximately 40 phrases of about 10 characters each (with a total character count of about 600) can be stored in the phrase bank. The actual number will depend on the length of each phrases.
You can store phrases from a previously labeled track or disc. Do the procedure Relabeling recordings (page 36) and display the track or disc name that contains the phrase that you want to store. Press VOL +/ repeatedly to move the cursor to the right of the phrase. Then press X for 2 seconds or more to store the phrase.
Storing phrases using the EDIT menu
Press the jog lever so that EDIT flashes in the display, and then press the lever again. Flip the jog lever until Name Bank flashes in the display, and then press the jog lever. Enter the phrase you want to store, and then press the jog lever for 2 seconds or more. Entry appears in the display and the phrase is stored.

Jog lever N X

Storing phrases while labeling a track or disc

Caring for others

Keep the volume at a moderate level. This will allow you to hear outside sounds and to be considerate of the people around you.
On the MiniDisc cartridge
When carrying or storing the MiniDisc, keep it in its case. Do not break open the shutter. Do not place the cartridge where it will be subject to light, extreme temperatures, moisture or dust.

On heat build-up

Heat may build up in the recorder if it is used for an extended period of time. In this case, leave the recorder turned off until it cools down.

On cleaning

Clean the recorder casing with a soft cloth slightly moistened with water or a mild detergent solution. Do not use any type of abrasive pad, scouring powder or solvent such as alcohol or benzene as it may mar the finish of the casing. Wipe the disc cartridge with a dry cloth to remove dirt. Dust on the lens may prevent the unit from operating properly. Be sure to close the disc compartment lid after inserting or ejecting an MD.

On installation

Never use the recorder where it will be subjected to extremes of light, temperature, moisture or vibration. Never wrap the recorder in anything when it is being used with the AC power adaptor. Heat build-up in the recorder may cause malfunction or damage.

Notes on batteries

Incorrect battery usage may lead to leakage of battery fluid or bursting batteries. To prevent such accidents, observe the following precautions: Install the + and poles of the batteries correctly. Do not try to recharge dry battery. When the recorder is not to be used for a long time, be sure to remove the batteries. If a battery leak should develop, carefully and thoroughly wipe away battery fluid from the battery compartment before inserting new ones.
Note on digital recording
This recorder uses the Serial Copy Management System, which allows only firstgeneration digital copies to be made from premastered software. You can only make copies from a home-recorded MD by using the analog (line out) connections.
Premastered software such as CDs or MDs.

Digital recording

Note on mechanical noise
The recorder gives off mechanical noise while operating, which is caused by the power-saving system of the recorder and it is not a problem.

To protect a recorded MD

To record-protect an MD, slide open the tab at the side of the MD. In this position, the MD cannot be recorded. To record again, slide the tab back so the tab is visible.

Homerecorded MD

No digital recording

Recordable MD

Microphone, record player, tuner, etc (with analog output jacks).
Back of the MD Tab Analog recording
Home-recorded MD Record-protect Digital recording
If you have any questions or problems concerning your recorder, please consult your nearest Sony dealer. (If a trouble occurred when the disc was in the recorder, we recommend that the disc be left in the recorder when you consult your Sony dealer so that the cause of trouble may be better understood.)

Troubleshooting

Should any problem persist after you have made these checks, consult your nearest Sony dealer. Symptom The recorder does not work or works poorly. Cause/Solution Audio sources may not be securely connected. , Disconnect the audio sources once and connect them again (pages 8, 15). The HOLD function is turned on (HOLD appears in the display when you press an operation button on the recorder). , Disable HOLD by sliding the HOLD switch in the opposite direction of the arrow (page 29). Moisture has condensed inside the recorder. , Take the MD out and leave the recorder in a warm place for several hours until the moisture evaporates. The rechargeable battery or dry battery is weak (r or LOW BATT flashes). , Charge the rechargeable battery or replace the dry battery (page 40). The rechargeable battery or dry battery have been inserted incorrectly. , Insert the battery correctly (page 41). You pressed a button while the disc indication was rotating quickly. , Wait until the indication rotates slowly. When recording digitally from a portable CD player, you did not use AC power or did not disable the anti-skip function such as ESP (page 15). The analog recording was made using a connecting cord with an attenuator. , Use a connecting cord without an attenuator (page 8). The AC power adaptor was unplugged during recording or a power outage occurred. While operating, the recorder received a mechanical shock, too much static, abnormal power voltage caused by lightning, etc. , Restart the operation as follows. 1 Disconnect all the power sources. 2 Leave the recorder for about 30 seconds. 3 Connect the power source. The disc is damaged or does not contain proper recording or editing data. , Reinsert the disc. If this fails, rerecord. The power sources have been disconnected during recording or editing, or the battery have been exhausted. , Set the power sources again, or replace the exhausted battery with new ones.

The lid does not open.

Symptom No sound comes through the headphones.
Cause/Solution The headphones plug is not firmly connected. , Plug in the plug of the headphones firmly to the remote control. Plug in the plug of the remote control firmly to i/LINE OUT. Volume is too low. , Adjust the volume by pressing VOL +/. AVLS is on. , Set AVLS to AVLS OFF (page 27). Disc playing stopped before it came to the last track. , Flip the jog lever (press the control towards. repeatedly on the remote) 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. , 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. , Move the recorder away from the source of strong magnetism. You pressed X after pressing. or >. , Press X before flipping the jog lever or pressing. or >. The rechargeable battery has been inserted incorrectly or the AC power adaptor has been connected incorrectly. , Insert the battery correctly or connect the AC power adaptor correctly.
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 built-in battery for the clock is weak. The clock loses time or the display , Connect the AC power adaptor to DC IN 3V on the recorder flashes. and the wall outlet to charge the built-in battery. After charging, set the clock again (page 22). Note that the clock The recording date may gain or lose up to about 2 minutes per month under normal was not stamped condition. onto the disc. The clock is not set. , Set the clock (page 22). The cable connecting the devices is not an optical cable. CD text information cannot , Use an optical cable to connect the devices. be recorded. The connected portable CD player does not supports CD-TEXT. , Connect a portable CD player (such as D-EJ01) that supports CD-TEXT (page 23). The inserted CD does not supports CD-TEXT. , Insert a CD that supports CD-TEXT. VOL +/ or DIGITAL MEGA BASS does not function The AUDIO OUT parameter is set to LINE OUT. , Set the AUDIO OUT parameter to HeadPhone(page 4).

DISC FULL

Data Save

TOC Edit

NAME FULL

Hi DC in

LOW BATT

MEM OVER

Error message NO COPY
Meaning/Remedy You tried to make a copy from a disc that is protected by the Serial Copy Management System. You cannot make copies from a digitally connected source which was itself recorded using digital connection. , Use analog connection instead (page 8). You tried to play or record with no disc in the recorder. , Insert an MD. The recorder could not detect digital input signals. , Make sure that the source is connected firmly (page 15). You tried to record or edit on a premastered MD (P/B stands for playback). , Insert a recordable MD. You tried to record or edit on a MD with the tab in the recordprotect position. , Slide the tab back (page 43). You tried to erase the track mark at the beginning of the first track. You tried to erase a track mark to combine tracks the recorder cannot combine (a track recorded in stereo and in mono, for example). You tried to set DIGITAL MEGA BASS while the AUDIO OUT parameter was set to LINE OUT. , Use the jog lever to set the AUDIO OUT parameter to HeadPhone (page 4, 13). You tried to press X or T MARK during synchro-recording. Heat has built up in the recorder. , Let the recorder cool down. There is no more space for new data when you are editing the MD. , Erase unnecessary tracks (page 31). You tried to record or edit on a track that is protected from erasing. , Record or edit on other tracks. You pressed a key on the recorder while editing on the remote control. You pressed a key on the remote control while selecting a menu on the recorder. You pressed VOL +/ while the AUDIO OUT parameter was set to LINE OUT. , Use the jog lever to set the AUDIO OUT parameter to HeadPhone (page 4, 13). You tried to use the CD text copying function to copy a track or disc name from a CD that has no text data (page 23).
NO DISC NO SIGNAL P/B ONLY

PROTECTED

TEMP OVER TR FULL TrPROTECT EDITING MENU LINE OUT

NO TEXT

Error message EMPTY BANK FULL
Meaning/Remedy You tried to erase data in the phrase bank but no data have been recorded. The phrase bank is almost full and cannot store the phrase you tried to enter. , Delete some phrases from the phrase bank, and then reenter the new phrase.

User TOC Area

Music Data
Contains the order and start/end points of the music.

Looking at the controls

See pages in ( ) for more details. The recorder
J A B C D E F G H I K L M N O P Q R S
N Battery compartment (at the rear) (40) O VOL +/ button (12)(34) P OPEN switch (9)(11) Q END SEARCH button (10)(34) R./> (search /AMS) button (10)(12)(32)(34)(38) S SYNCHRO REC (synchro-recording) switch (16)
A x/CHARGE button (9)(12)(31)(40) B Display window (16)(25) C REC indicator (20) D DC IN 3V jack (at the rear) (8)(11)(40) E Jog lever (12)(17)(25)(34) F i (headphones)/LINE OUT jack (11)(23)(30) G MIC (PLUG IN POWER) jack (17) H LINE IN (OPTICAL) jack (8)(15) I HOLD switch (29) J N (play) button (10)(12)(38) K X (pause) button (10)(12)(22)(34)(37) L T MARK button (31) M REC (record) switch (9)

The display window

A B C D E F G

H I J K L M N

A Character information display (19)(25) Displays the disc and track names, date, error messages, track numbers, etc. B MONO (monaural) indication C Disc name/track name indication Lights up when labeling a disc or a track. D Play mode indication (25) Shows the play mode of the MD. E SYNC (synchro-recording) indication F Disc indication Shows that the disc is rotating for recording, playing or editing an MD. G REC indication (9) Lights up while recording. When flashing, the recorder is in record standby mode. H Mega bass indication (27) I Battery indication (40) Shows approximate battery condition.
J REMAIN (remaining time/tracks) indication (19)(28) Lights up along with the remaining time of the track, the remaining time of the MD, or the remaining number of tracks. K REC DATE (recorded/current date) indication Lights up along with the date and time the MD was recorded. When only DATE lights up, the current date and time are displayed. L Time display (20)(28) Shows the recorded time, current time, elapsed time of the track or MD being recorded or played. M Level meter (19) Shows the volume of the MD being played or recorded. N AM/PM indication (22) Lights up along with the time indication in the 12-hour system.
The headphones with a remote control

US model Other models

B C D E F G
A Headphones Can be replaced with optional headphones. B x (stop) button (12)(33)(35) C Control (12)(33)(35)(39) To play, press towards N > during stop. Press towards N > during play to search the beginning of the succeeding track; hold in this position to fast-forward. Press towards. during play to search the beginning of the preceding track; hold in this position to rewind. D HOLD switch (29) Slide to lock the controls of the remote control.

MZ-R90/R91

SERVICE MANUAL
Ver 1.4 2001.01 With SUPPLEMENT-1 (9-927-187-83)
US Model Canadian Model Australian Model Chinese Model

MZ-R90

AEP Model UK Model E Model Tourist Model
Photo: MZ-R91 (Blue type)
US and foreign patents licensed from Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism Mechanism Type Optical Pick-up Name

NEW MT-MZR90-165 LCX-2R

SPECIFICATIONS
System Audio playing system
MiniDisc digital audio system
LINE OUT: 194 mV, load impedance 10 kilohm * The i/LINE OUT jack connects either headphones or a line cable.

1) The

Laser diode properties
Material: GaAlAs Wavelength: = 790 nm Emission duration: continuous Laser output: less than 44.6 W (This output is the value measured at a distance of 200 mm from the lens surface on the optical pick-up block with 7 mm aperture.)
battery life may be shorter due to operating conditions and the temperature of the location. 2) When you record, use a fully charged rechargeable battery.
General Power requirements
Sony AC Power Adaptor (supplied) connected at the DC IN 3 V jack: 220230 V AC, 50/60 Hz (European model) 120 V AC, 50 Hz (Canadian model) 100240 V AC, 50/60 Hz (Other models) Nickel metal hydride rechargeable battery NH14WM (supplied) LR6 (size AA) alkaline battery (not supplied)

Dimensions

MZ-R90 Approx. 78.9 17.3 72.0 mm (w/h/d) (31//16 27/8 in.) MZ-R91 Approx. 78.9 18.0 72.0 mm (w/h/d) (31/8 23/32 27/8 in.)
Recording and playback time
Maximum 80 minutes (MDW-80, stereo recording) Maximum 160 minutes (MDW-80, monaural recording) Maximum 74 minutes (MDW-74, stereo recording) Maximum 148 minutes (MDW-74, monaural recording)
MZ-R90 Approx. 105 g (3.7 oz) the recorder only Approx. 148 g (5.2 oz) incl. a recordable MD, and NH-14WM nickel metal hydride rechargeable battery MZ-R91 Approx. 110 g (3.8 oz) the recorder only Approx. 153 g (5.4 oz) incl. a recordable MD, and NH-14WM nickel metal hydride rechargeable battery

Battery operation time

Battery life1) Batteries Recording
Playback Approx. 12 hours

Revolutions

400 rpm to 1,800 rpm (CLV)

Error correction

Advanced Cross Interleave Reed Solomon Code (ACIRC)

Sampling frequency

44.1 kHz
NH-14WM nickel metal hydride rechargeable battery LR6 (SG) (size AA) Sony alkaline dry battery

Approx. 6.5 hours

Supplied accessories

Sampling rate converter

Input: 32 kHz/44.1 kHz/48 kHz

Approx. 4 hours

Approx. 16.5 hours Approx. 29 hour

Coding

Adaptive TRansform Acoustic Coding (ATRAC)

Modulation system

EFM (Eight to Fourteen Modulation)

Number of channels

2 stereo channels 1 monaural channel

Frequency response

20 to 20,000 Hz 3 dB
Approx. NH-14WM 14.5 hours nickel metal hydride rechargeable battery + One LR6 (SG) (size AA)

AC power adaptor (1) Headphones with a remote control (1) (RM-MZ2S) NH-14WM nickel metal hydride rechargeable battery (1) Dry battery case (1) Rechargeable battery carrying case (1) Carrying pouch (1) AC plug adaptor (1) Design and specifications are subject to change without notice.

Wow and Flutter

Below measurable limit

Inputs

Microphone: stereo mini-jack, 0.351.38 mV Line in: stereo mini-jack, 69194 mV Optical (Digital) in: optical (digital) mini-jack
PORTABLE MINIDISC RECORDER

Outputs

i/LINE OUT*: stereo mini-jack Headphones: maximum output level 5 mV + 5 mV, load impedance 16 ohm
TABLE OF CONTENTS 1. 2. 3. 4. 5. 6. SERVICING NOTES.. 3 GENERAL.. 4 DISASSEMBLY.. 5 TEST MODE.. 11 ELECTRICAL ADJUSTMENTS.. 18 DIAGRAMS
Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
6-1. Block Diagram SERVO Section.. 6-2. Block Diagram A/D, D/A CONVERTER, AUDIO Section .. 6-3. Block Diagram KEY CONTROL/DISPLAY/ POWER SUPPLY Section .. 6-4. Printed Wiring Board.. 6-5. Schematic Diagram.. 6-6. IC Pin Function Description..
EXPLODED VIEWS.. 53 ELECTRICAL PARTS LIST. 57
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICES SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY.

The display window of the recorder

qa qs qd qf

1 Character information display Displays the disc and track name*, date, error messages, track numbers, etc. * Disc and track names appear only with MDs that have been electronically labeled. MONO(monaural) indication Disc name/track name indications Appears when labeling disc or track respectively. Play mode indication Shows the play mode of the MD. F (all repeat): All tracks play repeatedly. F 1(single repeat): One track plays repeatedly. F SHUF(shuffle repeat): Tracks will be repeated in random order. SYNC (synchro-recording) indication Lights up while synchro-recording. Disc indication Shows that the disc is rotating for recording, playing or editing an MD. REC indication Lights up while recording. Flashes when standing by for recording. Mega bass indication Battery indication Shows approximate battery condition. While charging the rechargeable battery, this indication shows the charging condition. REMAIN (remaining time/tracks) indication Lights up along with the remaining time of the track, remaining time of the MD, or remaining number of tracks. REC DATE (recorded/current date) indication Lights up along with the date and time the MD was recorded. When only DATE lights up, the current date and time are displayed. Time display Shows the elapsed time of the track being recorded or played. Level meter Shows the level of the MD being played or recorded. AM/PM indication Lights up along with the time indication in the 12-hour system.
The headphones with a remote control (RM-MZ2S)
4 Headphones Can be replaced with optional headphones. Stereo mini plug x (stop) button Control To play, press the control towards N> during stop. Press the control towards N> during play to search the beginning of the succeeding track; hold in this position to fast-forward. Press towards. during play to search the beginning of the preceeding track; hold in this position to rewind. HOLD switch Slide to lock the controls of the remote control. X (pause) button PLAY MODE button DISPLAY button VOL (volume) +/ buttons When the AVLS is set to on, you cannot increase the volume to the maximum. To increase the volume above the limited level, set the AVLS to off using the jog lever. Display window

SECTION 3 DISASSEMBLY

This set can be disassembled in the order shown below.
Main Board, Case Assy, Battery Set Panel Assy, Bottom Upper Panel Section LCD Module, Button, Control, Service Assy, Upper Panel (R90/R91)

Belt Assy, Ornamental

Main Board, Case Assy, Battery
Chassis Assy, Set, MD Mechanism Deck (MT-MZR90-165)
Service Assy, OP Motor Flexible Board Motor, DC (Sled) (M602)

Holder Assy

Motor, DC SSM-01C14A (Spindle) (M601), Motor, DC (Over Write Head Up/Down) (M603)
Note: Follow the disassembly procedure in the numerical order given.

PANEL ASSY, BOTTOM

[Self-Diagnosis Display Mode]
Press the x key Press the [T MARK] or [DISPLAY] key on the remote commander for several seconds.

[Adjusted value write]

X key: When adjusted value is

[Key Check Mode]

Quit the key check or open the upper panel
changed: Adjusted value is written. When adjusted value is not changed: That item is adjusted automatically.

[Manual Mode]

Mode to adjust or check the operation of the set by function. Normally, the adjustment in this mode is not executed. Transition method in Manual Mode 1. Setting the test mode. (See page 11) 2. Press the > or [VOL +] key activates the manual mode where the LCD display as shown below.

LCD display

Manual
3. The optical pick-up moves outward or inward while the > or. key is pressed for several seconds respectively. 4. Each test item is assigned with a 3-digit mode number; 100th place is a major item, 10th place is a medium item, and unit place is a minor item.
5. The display changes a shown below each time the jog key on the set is turned up or [DISPLAY] key on the remote commander is pressed.
[Overall Adjustment Mode]
Mode to adjust the servo automatically in all items. Normally, automatic adjustment is executed in this mode at the repair. Adjust the CD first, when performing adjustment. Configuration of overall adjustment
> key Title display. key
Address & Adjusted Value Display

C68S01

adjusted value

N key protect switch ON

address mode number

CD overall adjusting

Jitter Value & Adjusted Value Display

All item OK

NG item exists or x key

CD overall adjustment NG

0FFJ01
jitter value mode number x key
Block Error Value & Adjusted Value Display
CD overall adjustment OK > key

protect switch OFF

adjusted value MO overall adjusting

063B01

block error value mode number
ADIP Error Value & Adjusted Value Display
MO overall adjustment NG MO overall adjustment OK

059A01

ADIP error value mode number

Item Title Display

[Test mode $display check mode%]
For further information, refer to the Section 5 Electrical Adjustment. (See page 18)

LrefPw 01

item title mode number
However in the power mode (mode number 700s), only the power adjustment value is displayed.
Power Supply Adjusted Value
fixed display mode number
6. Quit the manual mode, and press x key to return to the test mode (display check mode).
This set can display and check the error count occurring during record and play. Setting method of Sound Skip Check Result Display Mode 1. Setting the test mode. (See page 11) 2. Press the N or [REC] key on the set activates the sound skip check result display mode where the LCD displays as shown below. If microprocessor version is 1.20 When N key is pressed:
4. When [REC] key on the set is pressed, the total of error count is displayed on the LCD, and each time the > key is pressed, the error count descents one by one as shown below. Also, when. key is pressed, the error count ascends by one. If N key is pressed, the error count during play is displayed.
If microprocessor version is 1.20.
If microprocessor version is 1.30 or later.
Rtry** ###### BOvr** Bful**
P**R** BOvr** Bful** Rtry** ######

Stat**

Total of play system error count
When [REC] key on the set is pressed:

Rtry**

Total of record system error count
** : Sound skip check items counter (hexadecimal) ###### : 6-digit address (hexadecimal) where a sound skipped last
If microprocessor version is 1.30 or later When N or [REC] key on the set is pressed:

Error code

Cause of error EIB Playback Stat Adrs BEmp Description of error Sound error correction error Decorder status error Cannot access the address Buffer becomes empty Buffer becomes full and sounds are dumped Buffer capacity lowers and data are forcibly written Retry count over

P**R**

Total of record system error count Total of play system error count

BOvr Recording BFul Rtry

3. When N key is pressed, the total of error count is displayed on the LCD, and each time the > key is pressed, the error count descents one by one as shown below. Also, when. key is pressed, the error count ascends by one. If [REC] key on the set is pressed, the error count during record is displayed.
5. Quit the sound skip check result display mode, and press the x key to return to the test mode (display check mode).
Stat** BEmp** ###### EIB **
P**R** EIB ** Stat** Adrs** BEmp** ######
This set uses the self-diagnosis system in which if an error occurs in recording/playback mode, the error is detected by the model control and power control blocks of the microprocessor and information on the cause is stored as history in EEPROM. By viewing this history in test mode, it helps you to analyze a fault and determine its location. Total recording time has been recorded as optical pick-up using time, and it is compared with the total recording time in the self-diagnosis display mode to find when an error occurred. Clear both total recording time and the time in self-diagnosis display mode, when the optical pick-up was replaced. 1. Setting the test mode. (See page 11) 2. Move up the jog key on the set or press the [DISPLAY] key on the remote commander activates the self-diagnosis display mode where the LCD display as shown below.

1st0**

history code
* * : Self-Diagnosis Data
3. Then, each time > key is pressed, LCD display descends by one as shown below. Also, the LCD display ascends by one when. key is pressed.
1st0** 1st1** 1st2** N N N 0** 1** 2**
N-11** N-12** N-20** N-21** N-22** R ####

N-10**

4. Quit the self-diagnosis display mode, and press the x key to return to the test mode (display check mode).
Description of Indication History History code number 1st0 1st1 1st2 N0 N1 N2 N-10 N-11 N-12 N-20 N-21 N-22 REC The first error Total recording time when 1st0 was generated (Higher rank byte) Total recording time when 1st0 was generated (Lower rank byte) The last error Total recording time when N 0 was generated (Higher rank byte) Total recording time when N 0 was generated (Lower rank byte) One error before the last. Total recording time when N-10 was generated (Higher rank byte) Total recording time when N-10 was generated (Lower rank byte) Two errors before the last. Total recording time when N-20 was generated (Higher rank byte) Total recording time when N-20 was generated (Lower rank byte) Total recording time * * Total recording time Total recording time is recorded in minutes. It is recorded in hexadecimal format and up to 65,535 min. can be counted. It returns to 0000h when recorder goes beyond this limit. Description

4. The test mode (display check mode) is automatically activated when all keys on the set and remote commander were checked (see above). Also, the test mode (display check mode) gets back if opening the upper panel during a key check.

Ver 1.4 2001. 01

SECTION 5 ELECTRICAL ADJUSTMENTS
In this set, automatic adjustment of CD and MO can be performed by entering the test mode. (See page 11) However, before starting automatic adjustment, the memory clear, power adjustment and temperature adjustment must be performed in the manual mode. The keys in the description refer to the keys on both set and remote commander unless otherwise specified. Though LCD display shows the LCD of the remote commander, same contents are also displayed on the LCD of the set.

[NV Reset]

Setting method of NV reset 1. Select the manual mode of test mode, and set mode number 021NV Reset.

2. Press the X key.

[Precautions for Adjustment]
1. Adjustment must be done in the test mode only. After adjusting, release the test mode. 2. Use the following tools and measuring instruments. Test CD disc 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) Digital voltmeter 3. Unless specified otherwise, supply DC 3V from the DC IN 3V jack. 4. Switch position HOLD switch. OFF 021

ResOK?

3. Press the X key once more.

Res***

r NV reset (after several seconds)

Reset!

[Adjustment Sequence]
Adjustment must be done with the following steps. 1. NV Reset (Memory clear) r 2. Power Supply Manual Adjustment Manual Mode r 3. Temperature correction r 4. CD Overall Adjustment r Overall Mode 5. MO Overall Adjustment
4. Quit the manual mode, and activate the test mode.
[Power Supply Manual Adjustment]
Adjustment sequence Adjustment must be done with the following steps. 1. VC PWM Duty (L) adjustment (mode number: 762) r 2. VREM PWM Duty (H) adjustment (mode number: 763) r 3. VREM PWM Duty (L) adjsutment (mode number: 764) r 4. VC PWM Duty (H) adjustment (mode number: 765) r 5. VREM PWM Duty (H) adjustment (mode number: 766) r 6. VREM PWM Duty (L) adjustment (mode number: 767)
Adjustment method of VC PWM Duty (L) (mode number: 762) 1. Select the manual mode of the test mode, and set the mode number 762. (See page 12)
Adjustment method of VC PWM Duty (H) (mode number: 765) 1. Select the manual mode of the test mode, and set the mode number 765. (See page 12)

VclPWM

VchPWM
2. Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.5 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.

digital voltmeter

2. Connect a digital voltmeter to the TP915 (VC) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.75 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted. digital

voltmeter MAIN board

MAIN board TP915 (VC) TP5105 (GND) TP915 (VC) TP5105 (GND)
3. Press the X key to write the adjusted value. Adjustment method of VREM PWM Duty (H) (mode number: 763) 1. Select the manual mode of the test mode, and set the mode number 763. (See page 12)
3. Press the X key to write the adjusted value. Adjustment method of VREM PWM Duty (H) (mode number: 766) 1. Select the manual mode of the test mode, and set the mode number 766. (See page 12)

VrhVcl

VrhVch
2. Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.75 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted.
digital voltmeter MAIN board TP914 (VC) TP5105 (GND)
MAIN board TP914 (VC) TP5105 (GND)
3. Press the X key to write the adjusted value. Adjustment method of VREM PWM Duty (L) (mode number: 764) 1. Select the manual mode of the test mode, and set the mode number 764. (See page 12)
3. Press the X key to write the adjusted value. Adjustment method of VREM PWM Duty (L) (mode number: 767) 1. Select the manual mode of the test mode, and set the mode number 767. (See page 12)

VrlVcl

VrlVch
2. Connect a digital voltmeter to the TP914 (VR) on the MAIN board, and adjust [VOL +] key (voltage up) or [VOL --] key (voltage down) so that the voltage becomes 2.5 0.02 V. Proceed to the next step without pressing X key if voltage is already adjusted. digital
voltmeter MAIN board TP914 (VC) TP5105 (GND)
3. Press the X key to write the adjusted value.

[Temperature Correction]

MO RUN

%%%: Manual mode number being executed

CD RUN

MO Automatic Adjustment item
Mode No. 32 cluster full recording MO focus bias adjustment MO write ABCD level adjustment MO write tracking gain adjustment MO normal speed read TWPP offset adjustment MO ABCD level adjustment MO focus gain adjustment MO tracking gain adjustment MO RF gain adjustment MO write TWPP gain adjustment MO write TWPP offset adjustment Lower reflection CD ABCD level adjustment Lower reflection CD focus gain adjustment Lower reflection CD tracking gain adjustment MO tracking error gain adjustment MO tracking error offset adjustment MO TWPP gain adjustment MO double speed read TWPP offset adjustment Lower reflection CD tracking error gain adjustment Lower reflection CD tracking error offset adjustment MO electrical offset adjustment Description
14. When both CD and MO overall adjustments are OK, set the manual mode and clear the clock data. For the microprocessor version 1.20 or later, set the mode number 043 (Resume), and press the X key.

[Laser Power Check]

Connection :

laser power meter

Connecting Location: MAIN BOARD (Component Side)

Resume

r Press the X key, historical data clear
Optical pick-up objective lens

TP914 (VR)

ResClr
MAIN board Both ends of R1005
Note: In step 10, set the clock data to 99Y11M11D11H11M00S, and in step 14, do not set the clock.

TP915 (VC)

10. If the result of automatic adjustment is OK, the following display appears in the LCD:
Check Method : 1. Select the manual mode of test mode, and set the laser power adjusting mode. (mode number 010) 2. Press the. key continuously until the optical pick-up moves to the most inward track. 3. Open the cover and set the laser power meter on the objective lens of the optical pick-up. 4. Press the N key, and set the laser MO read adjustment mode. (mode number 011) 5. Check that the laser power meter reading is 0.81 0.08 mW. 6. Check that the voltage both ends of resitor R1005 at this time is below 44 mV. 7. Press the N key, and set the laser CD read adjustment mode. (mode number 012) 8. Check that the laser power meter reading is 0.97 0.10 mW. 9. Check that the voltage both ends of resitor R1005 at this time is below 44 mV. 10. Press the N key, and set the laser MO write adjustment mode. (mode number 013) 11. Check that the laser power meter reading is 4.95 0.50 mW. 12. Check that the voltage both ends of resister R1005 at this time is below 80 mV. 13. Press the x key. 14. Release the test mode.

XRST SYSTEM CONTROL VC VB SAW OSC2 VC 31 VCIN 32 SLEEP XWK1 XWK2 XWK3 XWK4

BATM 5 INMINPRF+

VC VREG PWM RF1

30 VC 29 VCON

STEP-UP PRE DRIVER

28 LPGND

FB 9 VREG 10 + RF4 STEP-UP DC/DC CONVERTER PWM RF2 + +

VC VC VG

VLD 11 VR 12

26 LVROUT

SWVG GND

+ 21 22

6-6. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC501 SN761056ADBT (RF AMP, FOCUS/TRACKING ERROR AMP) Pin No. Pin Name TE REXT WPPLPF VREF11 C D D-C IY IX JX JY A A-C B TON-C CIG CDN PD-NI PD-I PD-O ADFG DVDD SBUS SCK XRST OFTRK DGND BOTM PEAK VREF075 VC CCSL2 RF OUT AGND EQ LP PS OFC-2 OFC-1 AVCC ABCD FE S-MON ADIP-IN I/O O O I I I I I I I I I I I I O O I/O I I I O O O O O O O I Description Tracking error signal output to the CXD2660GA (IC502) Connected to the external resistor for the ADIP amplifier control Connected to the external capacitor for low-pass filter of the TPP/WPP Reference voltage output terminal (+1.1V) Signal input from the optical pick-up detector (C) Signal input from the optical pick-up detector (D) Signal input from the optical pick-up detector (D) (AC input) I-V converted RF signal IY input from the optical pick-up block detector I-V converted RF signal IX input from the optical pick-up block detector I-V converted RF signal JX input from the optical pick-up block detector I-V converted RF signal JY input from the optical pick-up block detector Signal input from the optical pick-up detector (A) Signal input from the optical pick-up detector (A) (AC input) Signal input from the optical pick-up detector (B) Connected to the external capacitor for the TON hold Connected to the external capacitor for low-pass filter of the NPP divider denominator Connected to the external capacitor for low-pass filter of the CSL divider denominator Light amount monitor input terminal (non-invert input) Light amount monitor input terminal (invert input) Light amount monitor output terminal ADIP duplex FM signal (22.05 kHz 1 kHz) output to the CXD2660GA (IC502) Power supply terminal (+2.4V) (digital system) Two-way SSB serial data bus with the system controller (IC801) SSB serial clock signal input from the system controller (IC801) Reset signal input from the system controller (IC801) L: reset Off track signal input from the CXD2660GA (IC502) Ground terminal (digital system) Light amount signal (RF/ABCD) bottom hold output to the CXD2660GA (IC502) Light amount signal (RF/ABCD) peak hold output to the CXD2660GA (IC502) Connected to the external capacitor for the internal reference voltage Middle point voltage (+1.2V) generation output terminal Connected to the external capacitor for low-pass filter of the TPP/WPP Playback EFM RF signal output to the CXD2660GA (IC502) Ground terminal (analog system) Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF equalizer Connected to the external capacitor for the RF AC coupling Connected to the external capacitor for the RF AC coupling Power supply terminal (+2.4V) (analog system) Light amount signal (ABCD) output to the CXD2660GA (IC502) Focus error signal output to the CXD2660GA (IC502) Servo signal monitor output to the system controller (IC801) ADIP duplex FM signal (22.05 kHz 1 kHz) input terminal Not used

MAIN BOARD IC502 CXD2660GA (DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO SIGNAL PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 16M BIT D-RAM) Pin No. to 35 36, 45 Pin Name VDC0 MNT0 MNT1 MNT2 MNT3 SWDT SCLK XLAT VSC0 SRDT SENS XRST SQSY DQSY (MTFLGL) RECP XINT TX VDIO0 OSCI OSCO VSIO0 NC VSC1 XTSL XCS_DSP DIN1 DOUT DT72 VDC1, VDC2 DATAI LRCKI XBCKI ADDT DADT LRCK VSC2 XBCK I/O I/O O O O I I (S) I (S) O (3) O (3) I (S) O O I O I I O I I I O O I I I I O O O Not used (open) Recording shock detect signal output to the system controller (IC801) Off track signal output to the SN761056ADBT (IC501) and system controller (IC801) Focus OK signal output to the system controller (IC801) H: is output when focus is on (L: NG) Serial data input from the system controller (IC801) Serial clock signal input from the system controller (IC801) Serial data latch pulse input from the system controller (IC801) Ground terminal (for internal logic) Serial data output to the system controller (IC801) Internal status (SENSE) output to the system controller (IC801) Reset signal input from the system controller (IC801) L: reset Subcode Q sync (SCOR) output the system controller (IC801) L is output every 13.3 msec Almost all, H is output Digital In U-bit CD format subcode Q sync (SCOR) output to the system controller (IC801) L is output every 13.3 msec Almost all, H is output Laser power selection signal input from the system controller (IC801) L: playback mode, H: recording mode Interrupt status output to the system controller (IC801) Recording data output enable signal input from the system controller (IC801) Writing data transmission timing input Power supply terminal (+2.4V) (for I/O) System clock (512Fs=22.5792 MHz) input terminal System clock (512Fs=22.5792 MHz) output terminal Ground terminal (for I/O) Not used (open) Ground terminal (for internal logic) Input terminal for the system clock frequency setting L: 45.1584 MHz, H: 22.5792 MHz (fixed at H in this set) Chip select signal input from the system controller (IC801) Digital audio signal input terminal when recording mode Digital audio signal output terminal when playback mode Not used (open) Not used (open) Power supply terminal (+1.8V) (for internal logic) Serial data input terminal Not used (fixed at L) L/R sampling clock signal (44.1 kHz) input terminal L: Rch, H: Lch Not used (fixed at L) Serial input/output data bit clock signal (2.8224 MHz) input terminal Not used (fixed at L) Recording data signal input from the A/D, D/A converter (IC301) Playback data signal output to the A/D, D/A converter (IC301) L/R sampling clock signal (44.1 kHz) output to the A/D, D/A converter (IC301) Ground terminal (for internal logic) Serial input/output data bit clock signal (2.8224 MHz) out put to the A/D, D/A converter (IC301) Description Power supply terminal (+1.8V) (for internal logic)

* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O

Pin No. to to to 101 102

Pin Name FS256 A03, A04, A02, A05, A01, A06 VDIO1 VSIO1 A00, A07, A10. A08, A09 XRAS IXOE IXWE XCAS D1, D2, D0, D3 VDC3 VSC3 A11 XOE XWE MVCI ASYO ASYI AVD1 BIAS RFI AVS1 PCO FILI FILO CLTV PEAK BOTM ABCD FE AUX1 VC ADIO ADRT AVD2 AVS2 ADRB SE TE DCHG APC ADFG VDIO2 VSIO2 F0CNT
I/O O O O O O O O I/O O O O I (S) I (A) I (A) I (A) O (3) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) I (A) O
Description Clock signal (11.2896 MHz) output to the A/D, D/A converter (IC301) (X' tal system) Address signal output to the external D-RAM Power supply terminal (+2.4V) (for I/O) Ground terminal (for I/O) Address signal output to the external D-RAM Not used (open) Not used (open) Not used (open) Not used (open) Not used (open) Not used (open)
Row address strobe signal output to the external D-RAM L active Output enable signal output terminal for internal D-RAM L active
Data write enable signal output terminal for internal D-RAM L active Column address strobe signal output to the external D-RAM L active Two-way data bus with the external D-RAM Ground terminal (for internal logic) Address signal output to the external D-RAM Not used (open) Output enable signal output to the external D-RAM L active Digital in PLL oscillation input from the external VCO Not used (open) Power supply terminal (+1.8V) (for internal logic)
Not used (open) Not used (open)
Data write enable signal output to the external D-RAM L active

Not used (fixed at L)

O (A) Playback EFM full-swing output terminal Playback EFM asymmetry comparator voltage input terminal Power supply terminal (+2.4V) (analog system) Playback EFM asymmetry circuit constant current input terminal Playback EFM RF signal input from the SN761056ADBT (IC501) Ground terminal (analog system) Phase comparison output for master clock of the recording/playback EFM master PLL Filter input for master clock of the recording/playback EFM master PLL Internal VCO control voltage input of the recording/playback EFM master PLL Light amount signal (RF/ABCD) peak hold input from the SN761056ADBT (IC501) Light amount signal (RF/ABCD) bottom hold input from the SN761056ADBT (IC501) Light amount signal (ABCD) input from the SN761056ADBT (IC501) Focus error signal input from the SN761056ADBT (IC501) Auxiliary signal (I3 signal/temperature signal) input terminal Middle point voltage (+1.2V) input terminal Not used (open) A/D converter operational range upper limit voltage input terminal (fixed at H in this set) Power supply terminal (+2.4V) (analog system) Ground terminal (analog system) A/D converter operational range lower limit voltage input terminal (fixed at L in this set) Sled error signal input terminal Not used (fixed at L) Tracking error signal input from the SN761056ADBT (IC501) Connected to the +2.4V power supply Error signal input for the laser automatic power control Power supply terminal (+2.4V) (for I/O) Ground terminal (for I/O) Filter f0 control signal output terminal Not used (open) Not used (fixed at H) ADIP duplex FM signal (22.05 kHz 1 kHz) input from the SN761056ADBT (IC501) Not used (fixed at H)

120 to 122 TEST1 to TEST3
MAIN BOARD IC801 CXR701080-013GA (MASTER CONTROLLER) Pin No. Pin Name SYNC REC OFTRK PROTECT PAUSE KEY TX SENSE WRPWR XLAT XCS DSP CS RTC SI0 SO0 SCK0 XGUM ON VSS VDD XOUT BEEP RMC DTCK XCS LCD LCD STB LCD RST XHP STBY CLV U CLV V CLV W MODE1 MODE2 MODE3 HD CON 1 HD CON 2 XREC MODE LD ON TSB SLV ON SLD MON 1 PD S0 REG CTL CLK PD S1 I/O I I I I O I O O O O I O O I O O I/O O O O O O O O O O O O O O O I I O O O Description SYNCHRO REC switch (S801) input terminal L: off, H: on Off track signal input from the CXD2660GA (IC502) Rec-proof claw detect input from the protect detect switch (S806) L: recording possible , H: protect Set pause key input terminal Recording data output enable signal output to the CXD2660GA (IC502) Writing data transmission timing output Internal status (SENSE) input from the CXD2660GA (IC502) Laser power select signal output to the CXD2660GA (IC502) L: playback mode , H: recording mode Serial data latch pulse output to the CXD2660GA (IC502) Chip select signal output to the CXD2660GA (IC502) Chip select signal output to the real time clock (IC804) Serial data input from the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802), real time clock (IC804) and switch & liquid crystal display module unit Serial data output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802), real time clock (IC804) and switch & liquid crystal display module unit Serial clock signal output to the A/D, D/A converter (IC301), CXD2660GA (IC502), EEPROM (IC802), real time clock (IC804) and switch & liquid crystal display module unit Rechargeable battery pack detection switch (S901) input terminal L: rechargeable battery pack in Ground terminal Power supply terminal (+2.4V) Not used (open) Beep sound control signal input terminal TSB serial communication data input/output terminal for remote commander with headphone Chip select signal output to the liquid crystal display Strobe signal output to the liquid crystal display Reset control signal output to the liquid crystal display Standby on/off control signal output to the line/headphone amplifier (IC303) L: standby mode, H: amplifier on Spindle servo (U) drive signal output to the MPC17A56FTAF (IC601) Spindle servo (V) drive signal output to the MPC17A56FTAF (IC601) Spindle servo (W) drive signal output to the MPC17A56FTAF (IC601) Power supply control signal output for over write head drive to the MPC18A20MTAEL (IC603) Power supply control signal output for over write head drive to the MPC18A20MTAEL (IC603) Power supply control signal output terminal for over write head drive Over write head control signal output to the MPC17A17DTB (IC602) Over write head control signal output to the MPC17A17DTB (IC602) Not used (open) Laser diode on/off control signal output terminal TSB slave detect signal input terminal Sled servo timing signal input from the MPC17A56FTA (IC601) PD IC mode switching signal output to the optical pick-up block Synchronizing external clock signal output terminal Not used (open) PD IC mode switching signal output to the optical pick-up block L: laser off, H: laser on Not used (open)