3-239-281-12(1)

FM/AM Portable MiniDisc Recorder

Operating Instructions

WALKMAN is a trademark of Sony Corporation.

MZ-G755

2002 Sony Corporation

WARNING

To prevent fire or shock hazard, do not expose the unit to rain or moisture. Do not install the appliance in a confined space, such as a bookcase or built-in cabinet. To prevent fire, do not cover the ventilation of the apparatus with news papers, table cloths, curtains, etc. And dont place lighted candles on the apparatus. To prevent fire or shock hazard, do not place objects filled with liquids, such as vases, on the apparatus. Certain countries may regulate disposal of the battery used to power this product. Please consult with your local authority. CAUTION INVISIBLE LASER RADIATION WHEN OPEN AVOID EXPOSURE TO BEAM
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. The CE mark is valid only for products marketed in the European Union.

Table of contents

Looking at the controls... 6 Getting started!.. 10 Recording an MD right away!.. 13 Playing an MD right away!.. 17 Listening to the radio.. 20 Various ways of recording
Two ways of connecting to a sound source.. 22 Recording with analog input (line cable required).. 24 Long-time recording (MDLP)... 25 To start/stop recording in sync with the source player (Synchro-recording).... 26 Recording without overwriting existing material.. 28 Recording from a microphone.. 29 Adding track marks automatically (Auto Time Stamp). 30 Adjusting the recording level manually (Manual recording). 32 Checking the remaining time or the recording position. 34

Various ways of playback

Playing tracks repeatedly... 36 Emphasizing bass (DIGITAL MEGA BASS).. 37 Checking the remaining time or the playing position.. 39 Protecting your hearing (AVLS)... 40 Locking the controls (HOLD)... 41 Connecting to a stereo system... 42
Various way to use the radio
Presetting radio stations automatically.. 44 Presetting radio manually... 45 Listening to the preset radio stations... 46 Receiving stations outside your country (Excluding European, Saudi Arabian, and Chinese model).. 46

Editing recorded tracks

Erasing tracks... 48 To erase a track... 48 To erase the whole disc... 49 Adding a track mark... 51 Erasing a track mark... 52 Moving recorded tracks... 53 Labeling recordings... 54

Power sources

Battery life... 57

Additional information

Precautions.... 59 System limitations... 63 Troubleshooting... 65 Messages.... 68 Specifications... 71 Explanations... 73

Looking at the controls

See pages in ( ) for more details.

The recorder

A B C D E F G H
A REC MODE button (25) B OPEN button (11) C T MARK button (51) D END SEARCH button

SELECT

CHARGE

K L M N O P

N (play) button (14)(17)
The N button has a tactile dot.

(14)(55)

E X (pause) button

(15)(18)(32)(55)

F VOL +/ button (17)(55)

K L M N O

The VOL + button has a tactile dot.
G DC IN 3V jack (10)(13) H i (headphones/earphones)

jack (11)(42)

I REC (record) switch
./> (search/AMS) button (15)(18)(52)(55) CHARGE/x (stop) button (10)(14)(17)(26)(49) Display window (27)(36) MENU/ENTER button (26)(36)(48) Battery compartment (10) LINE IN (OPTICAL) jack (13)(24) MIC (PLUG IN POWER) jack (29)
There is a tactile dot beside the MIC (PLUG IN POWER) jack.
(14)(24) J <SELECT, button (27)(36)(49)

P HOLD switch (11)(41)

The display window

A B C D

A Character information

I REC indication (14)

display (34)(39) Displays the disc and track names, error messages, track numbers, etc. Play mode indication (36) Shows the play mode of the MD. Time display Battery indication (58) Shows approximate battery condition. Mega bass indication (38). Level meter (33) Shows the volume of the MD being played or recorded. Recording mode (LP2/LP4/ MONO) indication (25) SYNC (synchro-recording) indication
Lights up while recording. When flashing, the recorder is in record standby mode. J REC REMAIN/REMAIN (remaining time/tracks) indication (34)(39) Lights up along with the remaining time of the track, the remaining time of the MD, or the remaining number of tracks. K Disc indication Shows that the disc is rotating for recording, playing or editing an MD.
The remote control with built-in digital tuner

A B C D E

A Headphones/earphones
E VOL +/ buttons (17)(20) F Jog lever
Can be replaced with optional headphones/ earphones. B HOLD switch (11)(41) Slide to lock the controls of the remote control. C RADIO ON/BAND button (20)(44) FM MODE button (21) D Display window (44)

Recording an MD right away!
Connect to a digital source using an optical cable (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. To record from an analog source, see Recording with analog input (line cable required) (page 24). To record from an MD, see Note on digital recording (page 62). Using the AC power adaptor (supplied) is recommended for recording. Note that you cannot record a radio broadcast that is being received on the remote control.

Make connections.

(Insert the cables firmly and completely into the appropriate jacks.)
CD player, MD player, DVD video player, etc. Optical plug
Portable CD player, etc. Optical miniplug
AC power adaptor (supplied)

to DIGITAL OUT (OPTICAL)

Optical cable (supplied)*

to LINE IN (OPTICAL)

The supplied cable consists of one or the other of these cables. The shape of the plugs on the supplied cable may differ, depending on where the recorder was purchased.
Placing the recorder into recording-standby mode.

END SEARCH N

Press N, and then press x. The display window on the recorder and the remote control light up.
Press END SEARCH. The recorder goes to the end of the previously recorded material. To search for another place, press N, >, or.

Record an MD.

Press and slide REC to the right. REC indication lights up in the display and recording starts.
Play the source you want to record.
To stop recording, press x. After you press x, the recorder will automatically turn off after: about 5 minutes when using AC power adaptor. about 10 seconds when using batteries.
Data Save or TOC 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. The lid does not open until TOC Edit disappears in the display.
To Record from the end of the previous recording1) Record partway through the previous recording1) Pause Remove the MD
Press END SEARCH, and then press and slide REC. N, > or. to find the start point of recording and press x to stop. Then press and slide REC. X2) Press X again to resume recording. x and open the lid.3) (The lid does not open while TOC Edit flashing in the display.)

Playing an MD right away!
To use the recorder on a rechargeable battery or dry battery, see Power sources (page 57). When you operate the recorder with the supplied remote control, use the buttons and control shown in parentheses.

Play an MD.

N x >N VOL +/

VOL +/

Press N (flip the jog lever towards >N). A short beep sounds in the headphones/earphones when you operate on the remote control.
Press VOL +/ to adjust the volume. The volume will be shown in the display.
To stop play, press x. A long beep sounds in the headphones/earphones when you operate on the remote control. Playback starts from the point you last stopped playing. After you press x, the recorder will automatically turn off after: about 5 minutes when using AC power adaptor. about 10 seconds when using batteries.
Press (Beeps in the headphones/ earphones2))
Find the beginning of. once (Flip the jog lever towards the current track.). (Three short beeps) Find the beginning of > once (Flip the jog lever towards the next track >N). (Two short beeps) Pause X (Press X on the jog lever). (Continuous short beeps) Press X again to resume play. Press and hold. (Flip and hold the jog lever towards.). Press and hold > (Flip and hold the jog lever towards >N). x (a long beep) and open the lid.3)
Go backwards while playing1) Go forward while playing1) Remove the MD
go backward or forward quickly without listening, press X and press and hold. or > (flip and hold the the jog lever towards. or >N on the remote control). 2) You can turn off the beep sound (page 42). 3) Once you open the lid, the point to start play will change to the beginning of the first track.
Suppressing the skips of the sound (G-PROTECTION)
The G-PROTECTION function was developed to provide a higher level of shock resistance than that of existing players.
The playback sound may skip if: the recorder receives stronger continuous shock. a dirty or scratched MiniDisc is played.

If play does not start

Make sure the recorder is not locked (page 41).
Playback will switch automatically to match the recording mode of the material (stereo, LP2, LP4, or monaural).
To prevent recorder malfunction, do not use a remote control that was supplied with another Sony portable MD model.

Listening to the radio

You can listen to the radio through the built-in digital tuner in the remote control. You cannot use the recorder to record a radio broadcast that is being received on the remote control.

Turn on the radio.

RADIO ON/BAND FM MODE
VOL +/ RADIO OFF (x) Jog lever (F+/F)
Press RADIO ON/BAND. The radio turns on. The frequency and FM or AM appears in the display. Press RADIO ON/BAND to change the band (FM or AM).
Flip the jog lever towards F+ or F repeatedly to tune in the desired radio station. Press VOL +/ to adjust the volume.
To turn off the radio Press RADIO OFF (x). To tune in a station quickly In step 3, flip and hold the jog lever towards F+ or F until the frequency indication begins to change. The remote control automatically scans the radio frequencies and stops when it finds a clear station. A short beep will sound in the headphones/earphones and the radio station begins playing. To improve broadcast reception For AM: Orient the built-in AM antenna inside the remote control horizontally to obtain optimum AM reception. For FM: Extend the headphones/earphones cord, which act as the FM antenna. If the reception is still not good, press and hold FM MODE (RADIO ON/BAND) until MONO(monaural) or LOCAL appears in the display for best reception. When you cannot operate the radio Make sure the remote control is not locked (page 41).
When you use the radio, it is recommended that you use a fully charged rechargeable battery or a new dry battery since more power is consumed by the radio than by MD playback. The radio will not operate if the remote control is not connected to the recorder. Do not place the remote control close to another electronic device, such as the recorder itself, another radio, a TV, or a computer, as this may cause noise in the reception. Playback or recording stops when you use the radio. Use VOL +/ on the remote control to adjust the radio volume.
Various ways of recording
Check menu items in the display window on the recorder, since they are displayed only there.
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 (optical) input or analog (line) input. To record, see Recording an MD right away! (page 13) to record using digital (optical) input, and Recording with analog input (line cable required) (page 24) to record using analog (line) input. Difference between digital (optical) and analog (line) inputs Difference Connectable source Usable cord Digital (optical) input Equipment with a digital (optical) output jack Optical cable (with an optical or an optical-mini plug) (page 13) Digital Analog (line) input Equipment with an analog (line) output jack Line cable (with 2 phono plugs or a stereo-mini plug) Analog Even when a digital source (such as a CD) is connected, the signal sent to the recorder is analog.

Signal from the source

Difference

Digital (optical) input

Analog (line) input 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 52).

Recorded Marked (copied) track numbers automatically at the same positions as the source (when the sound source is a CD or an MD). after more than 2 seconds of blank or low-level segment (with a sound source other than CD or MD). when the recorder is paused during synchrorecording (the recorder pauses automatically when it encounters a section with no audio signal for 3 seconds or more). You can erase unnecessary marks after recording. (Erasing a track mark, page 52). Recorded sound level Same as the source. Can also be adjusted manually (Digital REC level control) (Adjusting the recording level manually (Manual recording), page 32).
Adjusted automatically. Can also be adjusted manually (Adjusting the recording level manually (Manual recording), page 32).
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 programs with audio that is digitally broadcast (e.g., digital TV) are recorded through the digital (optical) input.
Recording with analog input (line cable required)
The sound will be sent from the connected equipment as analog signal but will be recorded digitally on the disc.
Line cable (not supplied)* to LINE IN (OPTICAL) L (white) CD player, cassette recorder, etc. R (red) to LINE OUT
Use the connecting cords without an attenuator. To connect to a portable CD player having a stereo mini-jack, use a connecting cord with a stereo-mini plug on both ends (not supplied).
Press and slide REC to the right. REC indication lights up in the display and recording starts. Play the source you want to record. For recording operations, see Recording an MD right away! (page 13). To record from a portable CD player, set the CD player to pause and then start recording.
LINE IN (OPTICAL) jack is for both digital and analog input
The recorder automatically recognizes the type of line cable and switches to digital or analog input.
If you temporarily stop a recording operation by pressing X, a track mark will be added at that point when you press X again to resume recording. The recording continues from a new track.
Long-time recording (MDLP)
Select each recording mode according to the recording time that you want. Stereo recording is possible at 2 times (LP2) or 4 times (LP4) the normal recording time. MDs recorded in monaural, LP2, or LP4 mode can be played back only on MD players or recorders with a monaural, LP2, or LP4 playback mode. Audio components that support the LP2 or LP4 modes are indicated by the or logo marks.

When the time interval set for Auto Time Stamp exceeds the elapsed recording time:
The recorder adds track marks when the set Auto Time Stamp time interval has elapsed. Example: Three minutes of recording has been completed when the Auto Time Stamp time interval is set to 5 minutes. A track mark will be added at the 5-minute point (after the start of recording) and after each 5-minute interval thereafter.
T appears before the time display on the recorder for track marks added by Auto Time Stamp.
Automatic track marking by Auto Time Stamp starts when you add a normal track mark to the disc (i.e., by pressing T MARK or X, etc.). The setting will be lost when the recording stopped.
Adjusting the recording level manually (Manual recording)
When you record, the sound level is adjusted automatically. If necessary, you can set the level manually.
Adjust the recording level while the recorder is in standby mode. You cannot adjust it while recording.

REC X MENU/ENTER

<SELECT,
While holding down X, press and slide REC to the right. The recorder stands by for recording. Press MENU, press <SELECT, repeatedly until RecVolume flashes in the display, and then press ENTER. Press <SELECT, repeatedly until ManualREC flashes in the display, and then press ENTER.

ManualREC

To switch back to the automatic control, Press <SELECT, repeatedly until Auto REC flashes in the display, and then press ENTER.

Play the source.

While observing the level meter in the display, adjust the recording level by pressing <SELECT,. Set the level so that the level meter reaches around 12 dB point (marked under the display window). If the sound is too high and the level meter reaches to the Over point (marked under the display window), lower the recording level.
Volume decreases < increases ,

12 dB point

Over point
Recording does not start in this step. If your source is an externally connected component, be sure to cue the source to the beginning of the material to be recorded before you start playback.
Press X again to start recording.
The recording level control is switched back to automatic control when you record the next time.
The recording level cannot be adjusted while recording is in progress. If you want to adjust the recording level after you have started the recording, press X to pause the recorder. Then do the procedure from step 5. You cannot adjust the recording level manually during synchro-recording.
Checking the remaining time or the recording position
You can check the remaining time, track number, etc. when recording or during stop.
While the recorder is recording or stopped, press MENU, press <SELECT, repeatedly until DISPLAY flashes in the display, and then press ENTER. Press <SELECT, repeatedly until the information you want flashes in the display. Each time you press SELECT,, the display changes as follows.

While the recorder is playing, press MENU, press <SELECT, repeatedly until DISPLAY flashes in the display, and then press ENTER. Press <SELECT, repeatedly until the information you want flashes in the display. Each time you press SELECT,, the display changes as follows.
On A LapTime The elapsed time of the current track. r 1 Remain The remaining time of the current track. r AllRemain The remaining time after the current location.
Press ENTER. The display changes as follows. The information selected in step 2 appears in A and B. A track number, track name1), or disc name2). B the information selected in step 2.

1)Appears 2)Appears

only when 1 Remain is selected and the track is labeled. only when AllRemain is selected while the recorder is in stop mode, and the disc is labeled.
If you want to check the remaining time or the recording position while recording or in stop mode, see page 34.
Protecting your hearing (AVLS)
The AVLS (Automatic Volume Limiter System) function keeps down the maximum volume to protect your ears.
Press MENU, press <SELECT, repeatedly until AVLS flashes in the display, and then press ENTER. Press <SELECT, repeatedly until AVLS ON flashes in the display, and then press ENTER. When you try to turn the volume too high, AVLS flashes in the display. The volume is kept to a moderate level.
To cancel AVLS Select AVLS OFF in step 2.
Locking the controls (HOLD)
To prevent the buttons from being accidentally operated when you carry the recorder, use this function.
Move HOLD in the direction of the. On the recorder, move HOLD to lock the controls of the recorder. On the remote control, slide HOLD to lock the controls of the remote control.
To unlock the controls Move HOLD in the opposite direction of the arrow to unlock the controls.
Connecting to a stereo system
Connect the i jack of the recorder to the LINE IN jacks of an amplifier or a tape recorder with a line cable (not supplied). The output is analog. The recorder plays the MD digitally and sends analog signals to the externally connected equipment.
Line cable (not supplied)

Stereo mini-plug

Portable DAT recorder, etc. to LINE IN Stereo system, etc.
R (red) to i Line cable (not supplied)

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 (page 51).

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.
Press <SELECT, repeatedly until EDIT flashes in the display, and then press ENTER. : Name flashes in the display. Press <SELECT, repeatedly until : Erase flashes in the display, and then press ENTER. All Erase? and PushENTER appear alternately in the display. To cancel erasing, press x. Press ENTER again. TOC Edit flashes in the display, and all the tracks will be erased. When erasing is complete, BLANKDISC appears in the display ( appears in the display on the remote control).

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.

Add a track mark

Track numbers increase T MARK
While playing or pausing an MD, press T MARK 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 at the point you want to add a track mark.
You cannot add track marks during synchro-recording.

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

Track numbers decrease 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.
When you erase a track mark, name assigned to the mark is 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

After moving MENU/ENTER

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 ENTER for 2 seconds or more.
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.
You can use the recorder on house current or as follows. In the recorder a nickel cadmium rechargeable battery NC-WMAA (supplied) an LR6 (SG) alkaline dry battery (not supplied) It is preferable to use the recorder on house current when recording for a long time.

Battery life

When recording1)2) Batteries NC-WMAA Nickel Cadmium rechargeable battery4) LR6 (SG) Sony alkaline dry battery5)

1) The

(Unit: approx.hours) (JEITA3)) Stereo LP2 LP96) 6 136) 7.5 166)
battery life may be shorter due to operating conditions, the temperature of the location, and varieties of batteries. 2) When you record, use a fully charged rechargeable battery. 3) Measured value by the standard of JEITA (Japan Electronics and Information Technology Industries Association). 4) When using a 100% fully charged rechargeable battery. 5) When using a Sony LR6 (SG) STAMINA alkaline dry battery (produced in Japan). 6) Recording time may differ according to the alkaline batteries.
When playing1) Batteries NC-WMAA Nickel Cadmium rechargeable battery3) LR6 (SG) Sony alkaline dry battery4) (Unit: approx.hours) (JEITA2)) Stereo LP2 LP4 11.16 48
battery life may be shorter due to operating conditions, the temperature of the location, and varieties of batteries. value by the standard of JEITA (Japan Electronics and Information Technology Industries Association). 3) When using a 100% fully charged rechargeable battery. 4) When using a Sony LR6 (SG) STAMINA alkaline dry battery (produced in Japan).

2) Measured

When using the radio1) Batteries NC-WMAA Nickel Cadmium rechargeable battery3) LR6 (SG) Sony alkaline dry battery4)
(JEITA2)) Approx. hours 9.5 28.5
battery life may be shorter due to operating conditions, the temperature of the location, and varieties of batteries. Technology Industries Association). using a 100% fully charged rechargeable battery. (produced in
2) Measured value by the standard of JEITA (Japan Electronics and Information 3) When
4) When using a Sony LR6 (SG) STAMINA alkaline dry battery

Japan).

When you use the radio, it is recommended that you use a fully charged rechargeable battery or a new dry battery since more power is consumed by the radio than by MD playback.

Projections

1 Place the lid so that the projections on the lid aligned with the slots on the main unit.
2 Fit the projection one by one into the slot as shown in the illustration.

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 or edited. To record again, slide the tab back so the tab is visible.

Back of the MD

Recorded material is protected.
Recorded material is not protected.
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 connections.
Premastered software such as CDs or MDs.

Digital recording

No Homerecorded digital recording MD
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.)

Recordable MD

Microphone, record player, tuner, etc. (with analog output jacks).
Analog recording Home-recorded MD Digital recording

No digital recording

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 TR FULL appears even before the disc has reached the maximum recording time (60, 74, or 80 minutes). TR FULL 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. Cause When 254 tracks have been recorded on the disc, TR FULL appears regardless of the total recorded time. More than 254 tracks cannot be recorded on the disc. To continue recording, erase unnecessary tracks.

Messages

If the following messages flash in the display window, check the messages below. The messages appear on the display window on the remote control are shown in the parentheses. BLANKDISC ( ) An MD with no recording on it is inserted. DISC ERR ( ) The disc is damaged or does not contain proper recording or editing data. Reinsert the disc. If this fails, rerecord. DISC FULL ( ) There is no more space to record on the disc (page 63). Replace the disc. Data Save ( ) The MD player is recording information (sounds) from the memory to the disc. Wait until this process is completed. Do not expose the player to any physical shock, nor disrupt power supply. TOC Edit ( ) The MD player is recording information (track start and end position) from the memory to the disc. Wait until this process is completed. Do not expose the player to physical shock, nor disrupt power supply. BUSY ( ) You tried to operate the recorder while it was accessing the recorded data. Wait until the message goes out (in rare cases, it may take 2 - 3 minutes). NAME FULL ( ) 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. Enter the characters within the limit.
Hi DC in (HI dcin, ) Voltage of the power supply is too high (The supplied AC power adaptor is not used). Use the supplied AC power adaptor. HOLD (Hold) The recorder is locked. Move HOLD against the arrow to unlock the recorder (page 11). LOW BATT (Lo batt) Battery is weak. Charge the rechargeable battery or replace the dry battery (page 10). MEM OVER ( ) You tried to record with the recorder placed where it receives continuous vibration. Put the recorder on a stable place, and start recording again. NO COPY ( ) 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 24). NO DISC (no dISC) You tried to play or record with no disc in the recorder. Insert an MD. NO SIGNAL ( ) The recorder could not detect digital input signals. Make sure that the source is connected firmly (page 13). P/B ONLY ( ) You tried to record or edit on a premastered MD (P/B stands for playback). Insert a recordable MD. PROTECTED ( ) You tried to record or edit on a MD with the tab in the recordprotect position. Slide the tab back (page 61).
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SORRY ( ) 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 different recording mode, or a track recorded through a digital connection and an analog connection, for example). You tried to press X, T MARK or REC MODE during synchrorecording. TEMP OVER ( ) Heat has built up in the recorder. Let the recorder cool down. TR FULL ( ) There is no more space for new data when you are editing the MD. Erase unnecessary tracks (page 48). TrPROTECT ( ) You tried to record or edit on a track that is protected from erasing. Record or edit on other tracks. You tried to edit a track that has been checked out from a computer. You cannot use this model to rename or edit a track which has been checked out from a computer.
model name1[MZ-G755] model name2[MZ------] [3-239-281-12(1)]

Specifications

MD recorder Audio playing system
MiniDisc digital audio system

Inputs

Microphone: stereo mini-jack, minimum input level 0.35 mV Line in: stereo mini-jack, minimum input level 49 mV Optical (Digital) in: optical (digital) mini-jack

Laser diode properties

Material: GaAlAs MQW 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.)

Outputs

i: stereo mini-jack, maximum output level 5 mW + 5 mW, load impedance 16 ohm
Recording and playback time
When using MDW-80 Maximum 160 min. in monaural Maximum 320 min. in stereo

Radio Frequency range

AM: 530 - 1,710 kHz (US, Canada, and Central and South America models) 531 - 1,602 kHz (Other models) FM: 87.5 - 108.0 MHz

Revolutions

350 rpm to 2,800 rpm (CLV)

Error correction

ACIRC (Advanced Cross Interleave Reed Solomon Code)

Sampling frequency

44.1 kHz

Sampling rate converter

Input: 32 kHz/44.1 kHz/48 kHz
General Power requirements
Sony AC Power Adaptor (supplied) connected at the DC IN 3 V jack: 120 V AC, 60 Hz (U.S.A., Canadian and Taiwan models) 230 V AC, 50/60 Hz (Europe continental model) 240 V AC, 50 Hz (Australian model) 220 V AC, 50 Hz (Chinese model) 230 - 240 V AC, 50 Hz (U.K. and Hong Kong models) 220 V AC, 50 Hz (Argentina model)

The meaning of no sound

No sound describes a recorder condition in which the input level is about 4.8 mV during analog input or less than 89 dB during optical (digital) input (with 0 dB as full bit (the maximum recordable level for a MiniDisc)).

Quick Random Access

Like CDs, MDs offer instantaneous random access to the beginning of any music track. Premastered MDs are recorded with location addresses corresponding to each music selection. Recordable MDs are manufactured with a User TOC Area to contain the order of the music. The TOC (Table of Contents) system is similar to the directory management system of floppy disks. In other words, starting and ending addresses for all music tracks recorded on the disc are stored in this area. This lets you randomly access the beginning of any track as soon as you enter the track number (AMS), as well as label the location with a track name as you would a file on a diskette.
A User TOC Area Contains the order and start/end points of the music. B Music Data
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00GB09BCO-EU.fm Page 76 Tuesday, January 29, 2002 1:41 PM

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