Sharp MDX-8-H Service manual

SERVICE MANUAL

SRS technology Licensed from SRS Labs. SRS technology holds the following patents:U.S. Patent No. 4,748,669 and U.S. Patent No. 4,841,572.

, the SRS Logo and the

are registered trade-

marks of SRS Labs, Inc. in the United States.

US and foreign patents licensed from Dolby Laboratories Licensing Corporation.

MD-X8H

No. S0779MDX8H///

MD-X8H

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified should be used.

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ........................................................................................................... 2

IMPOTANT SERVICE MANUAL (FOR UK ONLY) ............................................................................................................ 3

SPECIFICATIONS ............................................................................................................................................................. 3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 6

DISASSEMBLY.................................................................................................................................................................. 8

REMOVING AND REINSTALLING THE MAIN PARTS................................................................................................... 12

ADJUSTMENT ................................................................................................................................................................. 15

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 31

TYPE OF TRANSISTOR AND LED ................................................................................................................................. 31

WIRING DIAGRAM .......................................................................................................................................................... 32

BLOCK DIAGRAM ........................................................................................................................................................... 34

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD............................................................................................. 38

VOLTAGE ........................................................................................................................................................................ 68

WAVEFORMS OF CD CIRCUIT...................................................................................................................................... 69

WAVEFORMS OF MD CIRCUIT ..................................................................................................................................... 70

TROUBLESHOOTING (CD SECTION) ........................................................................................................................... 72

TROUBLESHOOTING (MD SECTION) ........................................................................................................................... 76

FUNCTION TABLE OF IC................................................................................................................................................ 81

WIRING OF PRIMARILY SUPPLY LEADS (FOR UK ONLY) ......................................................................................... 90

RDS OPERATION ............................................................................................................................................................91

REPLACEMENT PARTS LIST/EXPLODED VIEW/ PACKING OF THE SET (FOR UK ONLY)

SHARP CORPORATION

– 1 –

This document has been published to be used for after sales service only. The contents are subject to change without notice.

MD-X8H

Optical pickup

Mechanism Chassis

Spindle Motor

Magnet Head

Laser Beam

Cartridge Holder

Laser Diode Properties

● Material: GaAlAs

● Wavelength: 785 nm

● Pulse time:

Read mode: 0.8 mW Continuous Write mode: max 10 mW 0.5S

min cycle 1.5S Repetition

SAFETY PRECAUTION FOR SERVICE MANUAL

WARNINGS (CD)

THE AEL (ACCESSIBLE EMISSION LEVEL) OF THE LASER POWER OUTPUT IS LESS THAN CLASS 1 BUT THE LASER COMPONENT IS CAPABLE OF EMITTING RADIATION EXCEEDING THE LIMIT FOR CLASS 1. THEREFORE IT IS IMPORTANT THAT THE FOLLOWING PRECAUTIONS ARE OBSERVED DURING SERVICING TO PROTECT YOUR EYES AGAINST EXPOSURE TO THE LASER BEAM.

1-WHEN THE CABINET IS REMOVED, THE POWER IS

TURNED ON WITDOUT A COMPACT DISC IN POSITION AND THE PICK-UP IS ON THE OUTER EDGE THE LASER WILL LIGHT FOR SEVERAL SECONDS TO DETECT A DISC. DO NOT LOOK INTO THE PICK-UP LENS.

2-THE LASER POWER OUTPUT OF THE PICK-UP UNIT

AND REPLACEMENT SERVICE PARTS ARE ALL FACTORY PRE-SET BEFORE SHIPMENT. DO NOT ATTEMPT TO RE-ADJUST THE LASER PICKUP UNIT DURING REPLACEMENT OR SERVICING.

3-UNDER NO CIRCUMSTANCES STARE INTO THE PICK-

UP LENS AT ANY TIME.

4-CAUTION-USE OF CONTROLS OR ADJUSTMENTS, OR

PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

ANTENNA

AM LOOP

75 OHMS

ANALOG IN/OUT

RIGHT LEFT

OUT

AUX 2

RIGHT

LEFT

GND

PHONE

RESET

AUX DIGITAL IN

DIGITAL 1 OPTICAL

DIGITAL 2 COAXIAL

RIGHT

IMPEDANCE : 6 OHMS

SPEAKERTS

LEFT

RATED SPEAKER

Laser Diode Properties

Material: GaAIAs Wavelength: 780 nm Emission Duration: continuous Laser Output: max. 0.6 mW

WARNINGS (MD)

The AEL (ACCESSIBLE EMMISSION LEVEL) of the laser power output is less than class 1 but the laser component is capable of emitting radiation exceeding the limit for class 1. Therefore it is important that the following precautions are observer during servicing to protect your eyes against exposure to the laser beam.

1) When the unit case cover is removed and LOADING SW (SW 1956) is turned on and then PLAY SW (SW 1954 mechanism PWB) is turned on in a few second.

The laser will light for several second to detect a disk.

2) The laser power output of the pickup unit and replacement service parts are all factory pre-set before shipment.

Do not attempt to re-adjust the laser pick-up unit during

replacement or servicing.

3) Under no circumstances stare into the pickup lens at any time.

4) If laser optical unit becomes faulty, replace the complete laser optical unit.

5) CAUTION-USE of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation exposure.

● CAUTION

Use the MD/CD component system only in accordance with the instructions given in this manual

and do not attempt to interfere with the interlock switch or make any other adjustment as this may result in exposure to hazardous radiation.

VARO ! Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen. VARNING! Osynlig laserstralning när denna del är öppnad och spärren är urkopplad. Betrakta ej strälen.

Precaution to be taken when replacing and servicing the laser pickup. The following precautions must be observed during servicing to protect your eyesvagainst exposure to the laser. Warning of possible eye damage when repairing: If the AC power plug is connected when the inner cover of the unit is removed, the laser will light up during focus access (about 1 second) (Fig. 2-1). During this operation, the laser will leak from the opening between the magnetic head and cartridge holder (Fig. 2-2). In order to protect your eyes, you must not look at the laser during repair. Before repairing, be sure to disconnect the AC power plug.

LASER KLASSE 1 LUOKAN 1 LASERLAITE KLASS 1 LASERAPPARAT

CAUTION-INVISIBLE LASER RADIATION WHEN OPEN. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH OPTICAL INSTRUMENTS.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN MED OPTISKA INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING VED ABNING. SE IKKE IND I STRALEN-HELLER IKKE MED OPTISKE INSTRUMENTER.

VARO! AVATTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE. ALA TUIJOTA SATEESEEN ALAKA KATSO SITA OPTISEN LAITTEEN LAPI.

VARNING-OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD. STIRRA EJ IN I STRALEN OCH BETRAKTA EJ STRALEN GENOM OPTISKT INSTRUMENT.

ADVERSEL-USYNLIG LASERSTRALING NAR DEKSEL APNES. STIRR IKKE INN I STRALEN ELLER SE DIREKTE MED OPTISKE INSTRUMENTER.

CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED . AVOID EXPOSURE TO BEAM .

VARNING - OSYNLIG LASERSTRALNING NAR DENNA DEL AR OPPNAD OCH

AR URKOPPLADE . STRALEN AR FARLIG.

SPARRAR

ADVARSEL - USYNLIG LASERSTRALING NAR DEKSEL APNES OG SIKKERHEDSLAS BRYTES . UNNGA EKSPONERING FOR STRALEN . VARO! AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NAKYMATON LASERSATEILYLLE . ALA KATSO SATEESEN .

VARNING - OSYNLIG LASERSTRALING NAR DENNA DEL AR OPPNAD OCH SPARREN AR URKOPPLAD . BETRAKTA EJ STRALEN . ADVARSEL - USYNLIG LASERSTRALING VED ABNING . NAR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION . UNDGA UDSETTELSE FOR STRALING .

Magnetic Head

Optical pickup

Figure 2-1

Figure 2-2

– 2 –

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER

(General)

Power source: AC 230V, 50 Hz Power consumption: 230 W Output power: PMPO; 340W (total)

MPO; 170W (85W+85W) (DIN 45 324) RMS; 100W (50W+50W) (DIN 45 324)

Input terminals: AUX 1 (Analogue); 500 mV/47 kohms

AUX 2 (Analogue); 500 mV/47 kohms AUX DIGITAL 1 (Optical) AUX DIGITAL 2 (Coaxial) PHONO; 3 mV/47 kohms

Output terminals: Headphones; 16- 50 ohms

(recommended; 32 ohms) Speakers; 6 ohms AUX (Analogue); 2.0 V (1 kohm)

Dimensions: Width; 240 mm (9-1/2")

Height; 290 mm (11-7/16") Depth; 317 mm (12-1/2")

Weight: 8.2 kg (18.1 lbs.)

Speaker section

Type: 2-way 150mm (6" ) woofer and 25mm

(1") dome tweeter type

Maximum input power: 100 W Rated input power: 50 W Impedance: 6 ohms Dimensions: Width; 197 mm (7-13/16")

Height; 297 mm (11-3/4") Depth; 281 mm (11-1/16")

Weight: 4.4 kg (9.7 lbs.) /each

Main unit section

(MiniDisc recorder section)

Type: MiniDisc recorder Signal readout: Non-contact, 3-beam semi-conductor

laser pick-up

Audio channels: Stereo 2 channels/monaural (long-play

mode) 1 channel

Frequency response: 20 - 20,000 Hz (+1/-3 dB) Rotation speed: 400 - 900 rpm CLV, Approx. Quantization: 16-bit linear Filter: 8-times oversampling digital filter Error correction: ACIRC (Advanced Cross Interleave

Reed-Solomon Code)

Coding: ATRAC (Adaptive TRansform Acoustic

Coding)

Recording method: Magnetic modulation overwrite method D/A converter: 1-bit Sampling frequency: 44.1 kHz Wow and flutter: Unmeasurable

(less than 0.001% W. peak)

Signal/noise ratio: 95 dB (1 kHz) Dynamic range: 90 dB (1 kHz)

(Compact disc player)

Type: 3 disc multi-play compact disc player Signal readout: Non-contact, 3-beam semi-conductor

laser pickup

Rotation speed: 200 - 500 rpm CLV, Approx. Error correction: CIRC (Cross Interleave Reed-Solomon

Code)

Quantization: 16-bit linear D/A converter: 1-bit Filter: 4-times oversampling digital filter Frequency response: 20 - 20,000 Hz (+1/-3 dB) Signal/noise ratio: 95 dB (1 kHz) Dynamic range: 90 dB (1 kHz) Wow and flutter: Unmeasurable

(less than 0.001% W. peak)

(Tuner section)

Frequency range: FM; 87.5 - 108 MHz

AM; 522 - 1,620 kHz

Sensitivity: FM; 2.5 µV (75 ohms, unbalanced)

AM; 650 µV/m

TO THE OPERATION MANUAL.

IMPORTANT SERVICE NOTES (FOR UK ONLY)

Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage test to be applied to ensure the unit is safe for the customer to use. Setting of Withstanding Voltage Tester and set.

Set name Withstanding Voltage Tester Test voltage

Set time Set current (Cutoff current) Unit Judgment OK: The “GOOD” lamp lights. NG: The “NG” lamp lights and the buzzor sounds.

Set value

4,240 VPEAK 3,000 VRMS 6 secs 4 mA

WITHSTANDING

VOLTAGE TESTER

OUT

SHORT-CIRCUT AC POWER SUPPLY CORD

MD-X8H

PROBE

UNIT

CONNECT THE PROBE TO GND OF CHASSIS SCREW TERMINAL

SPECIFICATIONS

Specifications for this model are subject to change without prior notice.

– 3 –

MD-X8H

1 2

3 4 5 6

7 8

10 11

28 29

35 37

36 38

13 14 15 16 171819 20

22 23 24 25 26 27

ON/STAND-BY

MD/CD STEREO MD-X8

MD MD CD MD

CD / MD MD EDIT

TRACK

VOLUME

SURROUND

X-BASS

NAME/TOC EDIT/

TIMER/

DELETE

DISPLAY

MESSAGEAUXTUNER

DISC-1

DISC-2

DISC-3

PHONES MD IN/AUX1 INPUT LEVEL MIC MIC VOL PC CNT KEYBOARD

(BAND)

TUNING / CURSOR

EQUALIZER

ENTER

1 2 3

PLAY

MULTI CONTROL

DOWN UP

REC

SOUND RETRIEVAL SYSTEM

EON

NAMES OF PARTS

FRONT PANEL

1. On/Stand-by Button: ON/STAND-BY

2. Remote Control Sensor

3. MD MD Edit Button: MD MD

4. CD Track Select Button: TRACK

5. Personal Computer Mode Indicator

6. LCD Display

7. Name/TOC-Edit/RDS Button: NAME/TOC EDIT/R

8. Auxiliary Input (Digital/Analogue/Phono) Button: AUX

9. Tuner Call (Band Select) Button: TUNER (BAND)

10. 3D Surround Indicator

11. CD Disc Trays

12. Headphones Socket: PHONES

13. MD Edit/Auxiliary 1 (Analogue) Input Socket: MD IN / AUX1

14. Auxiliary Input Level (Analogue) Control: INPUT LEVEL

15. Microphone (Stereo) Socket

16. Microphone Input Level control: MIC VOL

17. Personal Computer Connect Socket: PC CNT

18. Keyboard Connect Socket: KEYBOARD

19. CD Open/Close Buttons:

20. CD Play Buttons: PLAY 1-3

21. MD Compartment

22. MD Indicator

23. CD Edit Button: CD MD

24. Record Button and Indicator :

25. Computer Network Button

26. MD Eject Button:

27. MD Play/Pause Button and Indicator:

28. MD Stop Button:

29. Volume Control: VOLUME

30. 3D Surround Button: 3D SURROUND

31. Extra Bass Button: X-BASS

32. Equalizer Button: EQUALIZER

33. Timer/Delete Button: TIMER/DELETE

34. Multi Control Button: MULTI CONTROL

35. Display Button: DISPLAY

36. Enter Button: ENTER

37. Tuning Up-Down/Cursor Buttons:

38. Message Button: MESSAGE

39. CD Play/Pause Button and Indicator:

40. CD Stop Button:

REAR PANEL

1. AM Loop Aerial Input Socket

2. FM 75 ohms Aerial Socket

3. Analogue Output Sockets

4. AUX2 (Analogue) Input Sockets

5. Phono Input Sockets

6. Phono Ground Terminal

7. Reset Button

8. Auxiliary Digital 1 Input Socket (Optical)

9. Auxiliary Digital 2 Input Socket (Coaxial)

10. Speaker Terminals

– 4 –

1 2

3 4 5 6 7

8 9

ANTENNA

LOOP

ANALOG IN/OUT

RIGHT LEFT

RIGHT

GND

RESET

AUX DIGITAL IN

75 OHMS

OUT

AUX 2

LEFT

PHONO

DIGITAL 1

OPTICAL

DIGITAL 2

COAXIAL

SPEAKERS

RIGHT

RATED SPEAKER

IMPEDANCE : 6 OHMS

LEFT

11 12

13 14 15 16 17

18 19

20 21

2 3

8 9

22 23 24

25 26

27 28

29 30 31

56 7

VOLUME/

3D SURROUND

ON/STAND-BY

MD TUNER CD PLAY

BAND

PRGM CLEAR P-MODE TIME

54321

10/09876

REC

REC

MODE

AUTO MARK

AUX

SYNCHRO

REC

REMOTE CONTROL

1. Record Mode Button: REC MODE

2. Record Button:

3. Clear Button: CLEAR

4. Programme Button: PRGM

5. Play Mode Button: P-MODE

6. Synchro Record Button: SYNCHRO REC

7. Auto Mark Button: AUTO MARK

8. Time Display Select Button:TIME

9. Auxiliary Input (Digital/Analogue) Button: AUX

10. Tuner Preset/CD/MD Track Number Input Buttons

11. Remote Control Transmitter Window

12. 3D Surround On/Off Button: SURROUND ON/OFF

13. Pre-Equalizer Button: PRE-EQ

14. Extra Bass Button: X-BASS

15. Volume/3D Surround Button: VOLUME/3D SURROUND

16. Wide/Center Button: WIDE/CENTER

17. On/Stand-by Button: ON/STAND-BY

18. MD Stop Button:

19. MD Play/Pause Button:

20. Tuner Stereo Button: ST

21. Tuner Band Button: BAND

22. Display Button: DISPLAY

23. Name/TOC-Edit/RDS Button: NAME/TOC EDIT/R 24 Tuning Up-Down/Cursor Buttons:

25. Enter Button: ENTER

26. Multi Control Button

27. Message Button: MESSAGE

28. Timer/Delete Button: TIMER/DELETE

29. CD Play Buttons: Play

30. CD Play/Pause Button:

31. CD Stop Button:

MD-X8H

SPEAKER

1. Dome Tweeter

2. Woofer

3. Speaker Terminals

4. Speaker Duct

– 5 –

MD-X8H

SETTING THE CLOCK

When you have set the date and time, this unit can be used

as a clock. It can be used for timer recording or for timer

playback. It is also used to store the MD recording date in

memory.

Turn the power on.

Press the TIMER/DELETE button.

Within 10 seconds, press the

or on the MULTI CONTROL

button to select TIME ADJUST.

Within 10 seconds, press the ENTER button.

The unit will enter the date setting mode.

Press the 1 or 0 on the MULTI CONTROL button to adjust

the year.

Press the button once to increase or decrease the year by one. Keep

pressing it to advance continuously.

For any year after 2000, use "00" for 2000, "01" for 2001, and so on.

Press the on the MULTI CONTROL button to select the

month.

Press the or on the MULTI CONTROL button to adjust the

month.

Press the on the MULTI CONTROL button to select the day.

Press the or on the MULTI CONTROL button to adjust

the day.

Press the

on the MULTI CONTROL button to select the

hour.

Press the or on the MULTI CONTROL button to adjust

the hour.

Press the on the MULTI CONTROL button to select the

minute.

Press the

or on the MULTI CONTROL button to adjust the

minute.

Press the ENTER button to start the clock at the top of the

minute.

The clock starts operating.

Notes:

In the event of a power failure or when the AC power lead is

disconnected, the clock setting will be lost. Reset the time.

Whilst recording an MD, you cannot set the date and clock. Be sure

to set the date and clock before recording.

The range of dates that can be entered is from July 1, 1997 to

December 31, 2049.

To change the setting

After performing steps 1 - 4 above,

Press the or

on the MULTI CONTROL button to select

the item (YEAR, MONTH, DAY or CLOCK) you want to

change.

Press the or on the MULTI CONTROL button to change

the setting.

Press the ENTER button.

To check the time

When the power is off, the time appears on the display.

When the power is on and you press the TIMER/DELETE button,

the time will appear for about 10 seconds on the display.

The year, month and day will not be displayed.

5

6

7

10

11

12

13

TIMEWADJUST

SLEEPWSET

TIMERWSET

TIMEWADJUST

SLEEPWSET

TIMERWSET

CLOCKWWWWW 0:00

DAYWWWWWWW27WWWWW

MONT HWWWWW09WWWWW

YEARWWWWW '98WWWWW

LENDARW&WCLOCK

CLOCKWWWWW 0:00

DAYWWWWWWW27WWWWW

MONT HWWWWW09WWWWW

YEARWWWWW '98WWWWW

LENDARW&WCLOCK

CLOCKWWWWW 9:00

DAYWWWWWW 27WWWWW

MONT HWWWWW09WWWWW

YEARWWWWW '98WWWWW

LENDARW&WCLOCK

CLOCKWWWW 9:00

DAYWWWWWWW27W

MONT HWWWWW09WWWWW

YEARWWWWW '98WWWWW

LENDARW&WCLOCK

CLOCKWWWWW 9:35

DAYWWWWWWW27WWWWW

MONT HWWWW ' 09WWWWW

YEARWWWWW '98WWWWW

LENDARW&WCLOCK

LNODDISCWCL O C K

CLOCKWWWWW :

DAYWWWWWWW01WWWW

MONT HWWWWW01WWWW

YEARWWWWW '99WWWW

LENDARW&WCLOCK

CLOCKWWWWW :

DAYWWWWWWW01WWWW

MONT HWWWWW01WWWW

YEARWWWWW '98WWWW

LENDARW&WCLOCK

CLOCKWWWW :

DAYWWWWWWW01WWWW

MONT HWWWWW01WWWW

YEARWWWWW '98WWWW

LENDARW&WCLOCK

CLOCKWWWW :

DAYWWWWWWW01WWWW

MONT HWWWWW09WWWW

YEARWWWWW '98WWWW

LENDARW&WCLOCK

CLOCKWWWW :

DAYWWWWWWW01WWWW

MONT HWWWWW09WWWW

YEARWWWWW '98WWWW

LENDARW&WCLOCK

TIMER/

DELETE

ENTER

MULTI CONTROL

MINIDISC SYSTEM LIMITATIONS

Even if the maximum recording time of a MiniDisc is not When the number of tracks used reaches the limit, regardless of the remainder being

reached, “DISC FULL” or “TOC FULL” may be displayed. recording time, further recording will be impossible. (Maximum number of tracks: 255)

Even if the number of tracks and the recording time have When emphasis information (equalizer treatment in the treble section) in a track

not reached the limit, “DISC FULL” may be displayed. switches on/off many times, each change is assumed to be the beginning of a new

track, which will quickly use up all available track numbers, making further recording

impossible, regardless of the remaining time, recording time or the number of tracks

on the original.

Even if several short tracks are erased, the remaining When the remaining recording time of a disc is displayed, short tracks less than 12

recording time may not show an increase. seconds long may not be included in the total.

Two tracks may not be combined in editing. For MiniDiscs on which repeated recording and editing operations were performed, the

COMBINE function may not work.

The total of the recorded time and time remaining on a disc A cluster (about 2 seconds) is normally the minimum unit of recording. So, even if a

may not add up to the maximum possible recording time. track is less than 2 seconds long, it will use about 2 seconds of space on the disc.

Therefore, the time actually available for recording may be less than the remaining time

displayed.

If there are scratches on a disc, those sections will be automatically avoided (no

recording will be placed in those sections). Therefore, the recording time will be

reduced.

(Continued)

If a problem occurs

If subjected to any strong external interference (mechanical

shock, excessive static electricity, abnormal supply voltage due

to lightning, etc.) , or if it is operated incorrectly, or if an MD cannot

be removed, this product or the display may become damaged.

Unplug the AC power lead from the AC socket.

Press the RESET button on the back of the unit for at least 10 seconds.

Plug the AC power lead back into the AC socket.

When the RESET button is pressed, all of the settings in memory will

be erased.

If strange sounds, smells or smoke come out of the unit, or if a foreign

object falls into the unit, turn off the power, unplug the AC power lead

from the AC socket immediately. Contact an authorised Sharp

service.

RESETING THE MICROCOMPUTER

RESET button

OPERATION MANUAL

– 6 –

MD-X8H

REMEDY

• Insert properly.

• Replace the batteries.

• Operate it within a range of 0.2 m (8") to 6 m (20')

and within an angle of 15° to either side of centre.

• Connect the AC power lead.

REMEDY

• Try setting it again.

• Turn the power off and on again, and then retry

the operation.

• Connect the wires securely.

• Disconnect the AC power lead, and connect it

again.

• Increase the volume level.

• Disconnect the headphones.

• It is recommended that you use an outdoor aerial.

If a problem occurs

If this unit functions abnormally during operation, first check the following items. If the unit continues to function abnormally, or if an

abnormality appears other than listed below, turn off the player’s power and disconnect the AC power plug, then consult your SHARP

dealer or service personnel.

General

SYMPTOM

• The clock is wrong.

• When a button is pressed, the unit

does not respond.

• No sound is heard.

• Radios make unusual noise or the

picture on the TV screen is distorted.

CD playback

SYMPTOM

• Even though a disc has been loaded,

“NO DISC ” or “ERROR” is displayed.

• Playback stops in the middle of a

track, or playback is not performed

properly.

• Playback sounds are skipped.

MD recording and playback

SYMPTOM

• A recording cannot be made.

• Even though a disc has been loaded,

“NO DISC” or “ERROR” is displayed.

• Playback sounds are skipped.

Radio reception

SYMPTOM

• Radios make unusual noise consecu-

tively.

• The preset channel cannot be called.

Remote control

SYMPTOM

• The remote control does not function

or does not operate properly.

• The power cannot be turned on from

the remote control.

POSSIBLE CAUSE

• Did a power failure occur?

––

• Are the speaker wire disconnected?

• Are the speaker wires shorted?

• Is the volume level set to "0" ?

• Are the headphones connected?

• When a radio or TV which uses an indoor aerial

is placed near the unit, the picture on the TV

screen may be distorted or the radio may not

function properly.

POSSIBLE CAUSE

• The disc is loaded upside down.

• The disc is very dirty.

• The disc which does not satisfy the standards.

• Is the unit located near excessive vibrations?

• Has condensation formed inside the unit?

REMEDY

• Load the disc with the correct side up.

• Clean the disc.

• Load the correct disc.

• Place the unit on a firm, level surface free from

vibration.

• Remove the disc and leave the power turned on.

The unit should function properly in about 1 hour.

POSSIBLE CAUSE

• Is the MiniDisc protected against accidental erasure?

• Did you try to record on a playback-only MiniDisc?

• Can you see the “TOC FULL” message in the dis-

play?

• The disc is very dirty.

• Is the unit located near excessive vibrations?

• Has condensation formed inside the unit?

REMEDY

• Slide the accidental erase prevention tab back to

its original position.

• Replace it with a recordable disc.

• Put in another recordable disc with recording

space on it.

• Clean the disc.

• Place the unit on a firm, level surface free from

vibration.

• Remove the disc and leave the power turned on.

The unit should function properly in about 1 hour.

POSSIBLE CAUSE

• The unit is placed near the TV or computer.

• The aerial direction is not placed properly.

• Did a power failure occur?

REMEDY

• Place the unit apart from the noise.

• Correct the aerial direction.

• Preset the channel again.

TROUBLESHOOTING

POSSIBLE CAUSE

• The batteries (polarity) are not inserted properly.

• The batteries inside the remote control are dead.

• The remote control is operated from an incorrect

distance or angle.

• Is the AC power lead plugged in?

(Continued)

Error messages Meaning

BLANK MD • Nothing is recorded.

Can’t ACCESS • The unit cannot access the personal computer.

• Whilst an MD player is being edited on this units incorrect

digital signals are input from the portable MD .

Can’t COPY

• No copy can be made because of the SCMS copyright system.

Can’t EDIT • A track cannot be edited.

Can’t REC • Recording cannot be performed correctly due to vibration.

DEFECT • Since this disc has scratches on it, the recording operation

was skipped.

CH ERROR • The CD changer doesn't work well.

CONNECT ERR • Whils an MD player is being edited on this units, incorrect

digital signals are input from the portable MD player.

Din UNLOCK • Incorrect digital signals are input.

DISC ERR*

• The disc is damaged.

• The TOC information is not recorded on the disc.

DISC FULL • The disc is out of recording space.

EDIT OVER • There is no space left for recording CD.

FOCUS ERROR • A disc has not been loaded.

• The disc data cannot be read.

MD ERROR • Trouble is found.

MECHA ERR* • There is a mechanical problem and the disc is not working

properly.

NAME FULL • The number of characters for the disc name or track name

exceeds 100.

NO DISC • A MiniDisc has not been loaded.

• The MiniDisc data cannot be read.

NOT AUDIO • The data recorded on this disc is not audio data.

PLAYBACK MD • You tried to record on a playback-only disc.

• The disc and track names cannot be moved on playback

discs.

PROTECT • Trouble is found.

PROTECTED • The MiniDisc is write protected.

TEMP OVER • The temperature is too high.

TOC ERR* • The disc has a large amount of damage.

TOC FULL* • There is no space left for recording character information

(track names, disc names, etc.)

TOC W ERROR • Trouble is found.

TRAY ERROR • The disc tray for CD doesn't work well.

U TOC ERR* • The TOC information on this disc does not meet the MD

specifications or it cannot be read.

U TOC W ERR • The TOC information could not be created properly due to

a mechanical shock or to scratches on the disc.

? DISC • The data contains an error.

00:00 • Music is not being recorded.

*: Number or symbol

When an error message is displayed, proceed as follows:

Remedy

• Replace the disc with a recorded disc.

• Make sure the sound card is plugged in correctly.

• Make sure the cable is connected correctly and the portable

MD's power is on.

• Record using the analogue cable.

• Change the stop position of the track and then try editing it.

• Record or replace it.

• Replace the disc with another recordable disc.

•

Turn off the power, and disconnect the AC power lead from the AC

outlet. Then connect the AC power lead, and turn on the power again.

• Make sure the cable is connected correctly and that power is

being supplied to the portable MD player.

• Connect correct digitalue signals.

• Use the analogue input socket.

• Reload the disc or replace it.

• Replace sc with another recordable disc.

• Replace it with another recordable disc.

• Reload the MiniDisc.

• Contact a Sharp Authorised Servicing Dealer or Sharp

Authorised Service station.

• Turn off the power, and press the button.

• Shorten the disc or track name.

• Load a MiniDisc.

• Reload the MiniDisc.

• Select another track.

• Replace the MiniDisc.

• Replace it with a recordable MiniDisc.

• Edit only the sound.

• Restart the unit. If the unit doesn't work, contact a Sharp

Authorised Servicing Dealer or Sharp Authorised Service sta-

tion.

• Move the write protection tab back to its original position.

• Turn off the power, and wait for a while.

• Replace the disc with another disc.

• Replace it with another recordable disc.

• Contact a Sharp Authorised Servicing Dealer or Sharp

Authorised Service station.

•

Turn off the power, and disconnect the AC power lead from the AC

outlet. Then connect the AC power lead, and turn on the power again.

• Replace it with another disc.

• Erase all the data, and try recording.

• Turn off the power, and try to write the TOC again. (Remove any

source of shock or vibration whilst writing.)

• Replace the disc with another disc.

• Replace the disc with a recorded disc.

– 7 –

MD-X8H

DISASSEMBLY

Caution on Disassembly

Whe disassembling the machine or assenbling it after repair, observe the following instructions so as to ensure safety and keep its performance.

1. Unload the compact disc, and mini-disc from machine.

2. Be sure to unplug the power cable before starting disasembly of the machine.

3. When disassenbling each section, remove the nylon band or wire arrangement.

If a screw of improper length is fit to the MD mechanism.

(a screw fit the part to the mechanism chassis of MD section), it may cantact the optical pickup, impeding normal operation. Hence, due care must be taken.

4. While repairing, pay utmost attention to static electricity on ICs.

MAIN UNIT

STEP REMOVAL PROCEDURE FIGURE

1 Cabinet 1. Screw ................ (A1) x9 8-1

2 Rear Panel 1. Screw ................ (B1) x14 8-1

3 MD Unit 1. Flat Cable.......... (C1) x1 9-1

2. Socket ............... (C2) x1

3. Screw ................ (C3) x2

4 Fan Motor 1. Socket ............... (D1) x1 9-1

2. Screw ................ (D2) x3

3. Bracket .............. (D3) x2

5 Main PWB 1. Screw ................ (E1) x4 9-2

2. Socket ............... (E2) x11

6 Front Panel 1. Socket ............... (F1) x2 9-2

2. Screw ................ (F2) x4

7 Power PWB 1. Socket ............... (G1) x1 9-2

2. Screw ................ (G2) x4

8 Power Amp. PWB 1. Screw ................ (H1) x4 9-2

9 CD Changer Block 1. Screw ................ (J1) x4 9-3

2. Screw ................ (J2) x3

10 CD Servo PWB 1. Socket ............... (K1) x5 9-4

(Note 1 ) 2. Screw ................ (K2) x3

11 Tray Switch PWB 1. Screw ................ (L1) x1 9-4

12 Jack PWB 1. Socket ............... (M1) x1 9-5

2. Screw ................ (M2) x1

13 Mic PWB 1. Screw ................ (N1) x3 9-5

2. Screw ................ (N2) x1

14 Switch A PWB 1. Knob.................. (P1) x1 9-5

2. Nat..................... (P2) x1

3. Screw ................ (P3) x11

15 Switch B PWB/ 1. Screw ................ (Q1) x3 9-5

LED PWB 2. Holder ................ (Q2) x1

3. Screw ................ (Q3) x6

16 Switch C PWB 1. Screw ................ (R1) x7 9-5

17 Display PWB 1. Flexible PWB .... (S1) x1 9-5

2. Screw ................ (S2) x1

18 Lamp PWB 1. Screw ................ (T1) x1 9-5

Note 1: After removing the connector for the optical pickup

from the connector wrap the conductive aluminium foil around the front end of connector so as to protect the optical pickup from electrostatic damage.

STEP REMOVAL

19 CD Mechanism 1. Screw ................ (U1) x2 10-1

20 MD Mechanism 1. Screw ................ (V1) x4 10-2

21 MD Main PWB 1. Screw ................ (W1) x4 10-3

(See page 11 2. Socket ............... (W2) x3

Figure 11-2) 3. Flat Cable.......... (W3) x1

22 MD Mechanism 1. Screw ................ (X1) x4 11-1

PROCEDURE

2. Top Bord ........... (U2) x1

3. Disc Holder ....... (U3) x1

4. Disc Tray ........... (U4) x3

5. Screw ................ (U5) x1

6. Mechanism Holder

Guide................. (U6) x1

7. Screw ................ (U7) x2

8. Mechanism Holder

Bracket .............. (U8) x1

Mechanism Holder

10. Screw .............. (U10) x4

2. MD Mechanism

holder ................ (V2) x2

3. Screw ................ (V3) x4

4. Flat Cable.......... (V4) x1

4. Flexible PWB .... (W4) x1

(U9) x1

SPEAKER

STEP REMOVAL

1 Speaker 1. Net........................... (A1) x1 11-3

Cabinet

PROCEDURE

2. Net Holder............... (A2) x4 11-4

3. Screw ...................... (A3) x4

4. Front Panel ............. (A4) x1

5. Screw ...................... (A5) x4

6. Screw ...................... (A6) x4

Front Panel

(A1) x5 ø3 x8mm

(A1) x2 ø3 x8mm

Rear Panel

(B1) x14 ø3 x8mm

Figure 8-1

(A1) x2 ø3 x8mm

FIGURE

– 8 –

MD-X8H

(J2) x2 ø3 x8mm

(J2) x1 ø3 x8mm

(J1) x4 ø3 x8mm

Main Chassis

Sub Chassis

CD Changer Block

(K2) x3 ø3 x8mm

(L1) x1 ø2 x7mm

(K1) x2

(K1) x3

CD Changer Block

CD Servo PWB

Tray Switch PWB

(P3) x11 ø3 x10mm

(Q1) x3 ø3 x10mm

(Q3) x6 ø3 x10mm

(R1) x7 ø3 x10mm

(N1) x3 ø3 x8mm

(N2) x1 ø3 x8mm

(M2) x1 ø3 x8mm

(S2) x1 ø3 x8mm

(S1) x1

(M1) x1

(P2) x1

(P1) x1

Pawl

Switch A PWB

Switch B PWB

Switch C PWB

LED PWB

Mic PWB

Jack PWB

Display PWB

Lamp PWB

Display PWB

(Q2) x1

Front Panel

Washer

(T1) x1 ø3 x10mm

Motor M971

(D3) x2

(F1) x1

Lamp PWB

(D1) x1

Main PWB

Power PWB

Display PWB

(C2) x1

(C1) x1

Figure 9-1

(E2) x3

(C3) x2 ø3 x8mm

(H1) x2 ø3 x8mm

(D2) x1 ø3 x8mm

(G1) x1

(D2) x2 ø3 x10mm

Front Panel

MD Unit

Figure 9-3

(G2) x4 ø4 x8mm

(H1) x2 ø3 x12mm

Main PWB

(E1) x4 ø3 x10mm

Power Amp. PWB

(E2) x4

Figure 9-2

(F1) x1

Front Panel

Power PWB

(F2) x4 ø3 x8mm

(E2) x4

Figure 9-4

Figure 9-5

– 9 –

MD-X8H

(U7) x2 ø2 x6mm

Push the pawl of disc tray with a proper screwdriver.

Back surface

Pawl

Disc Tray 3

Disc Tray 1

Disc Tray 2 (After drawing out the disc trays 1, 2, and 3, turn over the mechanism unit, push two pawls, and remove successively the three disc trays from the mechanism unit, starting with the disc tray 3. Thereby the CD mechanism shown in the right figure can be removed.)

(U8) x1

(U1) x2 ø2 x7mm

Normal state

Disc Tray 1

(U4) x3

Spring

(U2) x1

(U3) x1

(U5) x1 ø2.6 x12mm

Disc Tray 2

Disc Tray 3

(U6) x1

Push

(U9) x1

CD Mechanism

(U10) x4 ø2.6 x10mm

Turn clockwise the main cam to raise the CD mechanism up to the uppermost position.

Press in turns the arrow

parts, starting with the

uppermost one, to

withdraw the disc trays

Pawl

(V3) x 1 ø2 x 4mm

MD Flat Cable

(V4) x1

MD Main PWB

CNS1902

Release the locks at both side

(V 1) x 2 ø3 x 10mm

MD Mechanism Holder (Left) (V2) x1

(V3) x 1 ø2 x 4mm

Shield Case (Bottom Side)

Figure 10-2

Shield Case (Top Sode)

(V3) x 1 ø2 x 4mm

MD Mechanism Unit

(V3) x 1 ø2 x 4mm

MD Mechanism

Holder (Right)

(V1) x2 ø3 x 10mm

Figure 10-1

(W4) x1 Optical pickup Flexible PWB (Note 1)

(V2) x1

(W1) x 4 ø1.7 x 3mm

Pull

Socket

MD Main PWB

(Note 1) After removing the flexible PWB for optical pickup from the connector wrap the front end of flexible PWB in conductive aluminum foil so as to protect the optical pickup from being damaged electrostatically.

Socket (W2) x 1

(W2) x 2

Figure 10-3

(W2) x 1

(W3) x 1

Frame

– 10 –

MD Mechanism

MD-X8H

SPEAKER

Top Panel

(A1) x1

Frame

Speaker Box

(X1)x4 ø1.7x8.9mm

Figure 11-1

MD Main PWB

Copper foil tape

CNS1902

(Caution)

24Pin Flat Cable (42) The copper foil tape is wound around the 24 pin flat cable (42) to ground them to the case. Fit them in the specified direction

Figure 11-2

Solder joint

Net

(A3)x4 Ø4x16mm

(A2)x4

Speaker Cord

(A6)x4 Ø3x12mm

Front Panel

Figure 11-3

(A4)x1 Front Panel

Tweeter

Speaker Cord

Woofer

Speaker Box

Speaker Cord

– 11 –

(A5)x4 Ø4x16mm

Figure 11-4

MD-X8H

MD Mechanism

(A1)x1 ø1.7x5mm

Magnetic Head

(A2)

Soldering x2

MD Mechanism Switch PWB

REMOVING AND REINSTALLING THE MAIN PARTS

MD MECHANISM SECTION

Perform steps 1 to 3 of the disassembly method to remove the MD mechanism.

How to remove the magnetic head (See Fig. 12-1)

1. Remove the screws (A1) x 1 pc.

2. Remove the solder joint (A2) x 2 connecting the magnetic head to the head relay flexible board.

Caution:

Take utmost care so that the magnetic head is not damaged when it is mounted.

How to remove the cartridge holder (See Fig. 12-2)

1. Open the rpller arm lever in the arrow direction, and lower the clamper lever to the rear side.

2. Apply +5V to the red line side of blue connector of loading motor, push the rack gear in the arrow direction to move the cam plate lever until tick is heard.

3. Remove the screw (B1) x1 pc., and the spring (B2) x1 pc., fitted to the holder arm, and shift the cartridge holder to the left side to remove it.

Clampa Lever

Loading Motor

Figure 12-1

Slider Lever

Roller Arm Lever

Cartridge Holder

(B1) x1 Ø1.7x5mm

How to remove the mechanism switch PWB (See Fig. 12-3)

1. Remove the screws (C1) x 2 pcs., and remove the mechanism switch PWB.

How to remove the sled motor/loading motor (See Fig. 12-4)

1. Remove the screws (D1) x 4 pcs., and remove the sled motor/loading motor.

Caution:

Be careful so that the gear is not damaged. (The damaged gear emits noise during searching.)

(D1)x2 Ø1.7x2mm

Loading Motor

(D1)x2 Ø1.7x2mm

Sled Motor

Lack Gear

Cam Plate Lever

Figure 12-2

(C1)x1 Ø1.7x3mm

(B2) x1

(C1)x1 Ø1.7x9.5mm

Figure 12-4

Figure 12-3

– 12 –

How to remove the spindle motor

Optical Pickup

(F1)x3 Ø1.7x9.5mm

(See Fig. 13-1)

1. Remove the screws (E1) x 3 pcs., and remove the spidle motor.

Caution:

Be careful so that the turntable is not damaged.

How to remove the optical pickup (See Fig. 13-2)

1. Remove the screws (F1) x 3 pcs.

MD-X8H

Turntable

Spindle Motor

(E1)x3 Ø1.7x2.5mm

Figure 13-1

Caution:

Be careful so that the gear is not damaged. (The damaged gear emits noise during searching.)

How to Replacing the loading pinch roller (See Fig. 13-3.)

1. Remove the fixing washer (G1) x 1 pc. with small precise screwdriver, and remove the loading pinch roller upward.

Caution: The deformed or damaged fixing washer must be replaced with new one.

Figure 13-2

Fixing washer (G1) x 1

How to Cleaning the loading pinch roller (See Fig. 13-3.)

1. Impregnate swab with several drops of alcohol, and clean the loading pinch roller with it.

2. Before using make sure that the cleaned parts have dried sufficiently.

– 13 –

Loading pinch roller

MD mechanism

Figure 13-3

MD-X8H

CD Disc

Disc Holder

CD Changer Block

Main Chassis

(When CD is in playback state.)

Turn the main cam clockwise, and raise the CD mechanism and disc holder up to uppermost position.

CD MECHANISM SECTION

For the procedure to remove the CD mechanism from the main unit, refer to Disassembling Procedure, Steps 1~10, and

19. (p.8).

How to Remove the optical pickup (See Fig. 14-1.)

1. Remove the screws (A1)x 2 pcs., to remove shaft (A2)x 1 pc.

2. Remove stop washer (A3)x 1 pc., to remove gear (A4)x 1 pc.

3. Remove the optical pickup.

Note: After disconnecting the optical pickup connector wrap the front end of connector in conductive aluminum foil so as to prevent damage to the optical pickup by static electricity.

How to Remove the tray motor/main cam motor (See Fig. 14-2.)

1. Remove the CD changer section by the method described in page 8, and disassemble as shown in the figure.

2. Remove the belts (B1)x 2 pcs., from the motor side.

3. Remove the screws (B2)x 4 pc.

4. Remove the tray motor and main cam motor.

Stop Washer (A3) x1

Pickup

CD Mechanism

(B2) x2 ø2.6 x4mm

Belt (B1) x1

(A1) x2 ø2.6 x5mm

Figure 14-1

Shaft (A2) x1

Gear (A4) x1

(B2) x2 ø2.6 x4mm

Belt (B1) x1

How to remove the CD disc (When CD is in playback state) (See Fig. 14-3.)

1. Remove the cabinet and front panel.

2. Disassemble as shown in the figure so that the CD disc of

CD changer becomes visible.

3. Remove the CD disc as shown in the figure.

How to remove the CD disc (When CD exists in the tray) (See Fig. 14-4.)

1. Remove the cabinet and front panel.

2. Disassemble as shown in the figure so that the CD disc of CD changer can be taken out.

3. Remove the CD disc from the tray as shown in the figure.

– 14 –

Disc Holder

CD Mechanism

CD Disc

Disc Tray 1

Disc Tray

Main Cam Motor

Tray Motor

Figure 14-2

Figure 14-3

Turn the main cam clockwise, and raise the CD mechanism and disc holder up to uppermost position.

CD Changer Block

Main Chassis

Press in turns the arrow parts, starting with the

uppermost one, to

Disc Tray

withdraw the disc trays

(When CD exists in the tray.)

Figure 14-4

ADJUSTMENT

TUNER SECTION

fL: Low-range frequency fH: High-renge frequency

• AM adjustment and confirmation

AM signal oscillator Frequency 400 Hz, 30%, AM modulation

Adjusting item

IF Adjust the indication of Set IF wafeform

Frequency cover fL: T302 (522 kHz) fL: 1.1 ± 0.1 V (VT line voltage of Adjust the indication fH: 5.1 ± 1.3 V of pin 20 of IC302) of set to 522 kHz. (Only confirmation)

Tracking fL: T302 (990 kHz) Set the output of

Adjusting object

T351 set to 1,620 kHz.

• FM mute level adjustment

FM signal oscillator Frequency 400 Hz, 22.5 kHz

Frequency

Adjusting

method

98.0 MHz 28 dB VR351 Input: SO301

AM Loop Antenna

Adjusting

object

Adjusting

method

450 kHz to maximum.

speaker terminal to maximum.

Adjusting object

Output: Speaker Terminal

MD-X8H

• TEST mode setting method

Holding down the ENTER button and TUNER (BAND) button, turn on the power. Frequency is set in the memory (initial setting) as shown in Table 15. Call the setting with the PRESET button to use it for tuner circuit adjustment or confirmation.

Preset No. Frequency

P01 87.5 MHz P06 522 kHz P02 108.0 MHz P07 1,620 kHz P03 90.0 MHz P08 603 kHz P04 106.0 MHz P09 1,404 kHz P05 98.0 MHz P10 990 kHz

Preset No.

Frequency

Table 15 Initial setting of memory

MAIN PWB

AM signal oscillator

Loop Antenna

FM signal oscillator

IF : Speaker Terminal Frequency cover: IC302, pin 20

UNIT

GND

Figure 15-1 AM IF

SO301

UNIT

Speaker Terminal

Figure 15-2 FM Mute Level

Electronic voltmeter

CNP301 AM ANTENNA TERMINAL

SO301 FM ANTENNA TERMINAL

JK501 ANALOG IN/OUT

AM TRACKING

FE301

20 13

IC302

121

T302

FM MUTE LEVEL

VR351

AM BAND COVERAGE

Figure 15-3 ADJUSTMENT POINTS

AM IF

T351

– 15 –

MD-X8H

0.1s

0.50 V IC1 20 FE

0.1s

0.50 V IC1 7 TE

FOCUS OFF-SET ADJUST

TRACKING OFF-SET ADJUST

CD TEST MODE

CD test mode setting

Any one of test mode can be set by pressing several buttons as follows. Holding down CD PLAY/PAUSE and TACK UP/CUE, turn on POWER. TEST: CD operation test

Test Mode Function - CD TEST mode

Setting of Test mode Indication of CD TEST mode OPEN/CLOSE operation is manual operation. The pickup can be moved with the ( ) or ( ) button.

<MEMORY> <MEMORY> <MEMORY> <STOP> LASER ON Tracking on the spot. Tracking on the spot. STOP

SERVO OFF PLAY SERVO ON PLAY <PLAY> button input - TOC. Initialization performed, and the ordinary PLAY is performed. Press the <STOP> button. Stop If the following button is pressed during PLAY, it is possible to specify directly any Track No.

<Disc Number 1> button: Track 4 <Disc Number 2> button: Track 9 <Disc Number 3> button: Track 15

Note:

Only in STOP state it is possible to slide the pickup with the ( ) or ( ) button. VOL: Last memory BAL: CENTER R.GEQ: FLAT X-BASS.OFF Cancel method: POWER OFF

Initialization is not performed.

CD SECTION

Since this CD system incorporates the following automatic adjusting function, when the pickup is replaced, it is not necessary to the readjust it . Since this CD unit does not need adjustment, the combination of PWB and laser pickup unit is not restricted.

Automatic adjustment items

1. Focus Offset (Fig. 16-1)

2. Tracking Offset (Fig. 16-2)

3. E/F Balance (Tracking Error Balance) (Fig. 16-3)

4. R/F level AGC function (HF level: Constant)

5. RF level automatic follow-up of the tracking gain This automatic adjustment is performed each time a disc

is changed. Therefore, each disc is played back using the optimal settings.

Figure 16-1

10ms

0.50 V IC1 20 FE

Enlarged View

200 ms 1V/diV IC 1 15

TRACKING/ ERROR BARANCE

ADJUST

10ms

0.50 V IC1 7 TE

Figure 16-2

TRACKING OFF-SET ADJUST

1 2

– 16 –

200 ms 1V/diV IC 1 7

Figure 16-3

MD-X8H

MD SECTION

• Note

Remove the MD unit for repeir, ansd after installing it in the set, be dure to reset it and ascertain that reset has been done. Resetting procedure (1) Unplug the AC cord from the socket, and hold down the RESET buttonm provided at the rear side

for more than 10 seconds. (2) Once set the TEST MODE (holding down the TEST MODE (X-BASS botton) and botton together, press the POWER button), and then turn off power.

1. Preparation for adjustment

Test disc

Type Test disc

1 High reflection disc TGYS1 (SONY) RRCDT0101AFZZ 2 Low reflection disc Recording minidisc UDSKM0001AFZZ 3 Head Adjusting transparent RRCDT0103AFZZ

Extension Cable (See Fig. 17)

Type

1 Extension PWB for servicing RUNTK0457AFZZ 2 Extension Connector (2 Pin) QCNWK0059AFZZ 3 Extension Connector (6 Pin) QCNWK0107AFZZ 4 Extension Cable (5 Pin) QCNWK0109AFZZ 3 Extension Cable (28 Pin) QCNWK0108AFZZ

2Pin extension connector QCNWK0059AFZZ

5Pin extension flat cable QCNWK0109AFZZ

Part No.

From Magnetic Head

MD MAIN PWB

CNP1252

From motor

CNP1601(Bottom side)

CNP1602

CNP1603 CNP1604(Bottom side)

6P-2P extension connector QCNWK0107AFZZ

CNS1101

From mechanism switch PWB

28Pin extension flat cable QCNWK0108AFZZ

Figure 17

Extension PWB for service (RUNTK0457AFZZ) Fit the extension PWB for service to the mechanism

From Optical Pickup Unit

2. Test mode

Test mode setting method

1. Holding down the + button and MD (PLAY/PAUSE) button, press the POWER button. (State A is changed to state B .)

2. Insert the playback disc 1 (high reflection disc) or recording disc 2 (low reflection disc). (State C is set.) Thus, the test mode state is set.

A tsm e : TEST MODE represents version of MD microcomputer.

TEST STOP state (When the MD (STOP) button is ressed in the C state, the indication A

is restored. To restore C again, press the CD (PLAY/ PAUSE) button.)

B EJECT

TEST

C AUT YOBI

TEST

Entering the specific mode

Whenever the CD (PLAY/PAUSE) button is pressed, the mode is changed.

AUTO pre-adjustment AUTO adjustment RESULT Pre-adjustment

EEPROM setting MANUAL adjustment RESULT MANUAL pre-adjustment

• Canceling the test mode

When the POWER button is pressed, the test mode is canceled, and the POWER OFF state is set.

– 17 –

MD-X8H

• Test Mode

1. AUTO pre-adjustment mode • Automatic pre-adjustment is performed. (After adjustment the grating adjustment mode is set.)

2. AUTO adjustment mode • Automatic adjustment is performed.

3. RESULT sub-mode • The measurement value, set value and calculated value are indicated.

4. RESULT mode (final adjustment) • The set value (after calculation) is indicated.

5. MANUAL pre-adjustment mode • RF side manual adjustment is performed.

6. MANUAL adjustment mode • Focus and tracking signal ATT manual adjustment is performed.

7. EEPROM setting mode • Various coefficients of digital servo are changed manually.

8. TEST-PLAY mode • Continuous playback from the specified address is performed.

9. TEST-REC mode • Continuous recording from the specified address is performed.

10. INNER mode • The position where the INNER switch is turned on is measured.

11. EJECT mode • TEMP setting (of EEPROM setting)

• The adjustment value is output with the aid of system controller interface.

• Continuous playback is performed. (Error rate indication, jump test)

• The set value is changed manually (in servo OFF state).

• Focus and tracking signal ATT manual adjustment is performed.

• Focus and tracking signal offset setting is performed.

• Each servo is set to ON individually.

• Temperature detection terminal voltage is measured, and the reference value is determined.

• C1 error rate measurement, ADIP error rate measurement.

• Change of record laser output (servo gain is also changed according to laser output)

• CONTROL setting (of EEPROM setting)

• Setting of laser power (record/playback power)

1. AUTO pre-adjustment mode (Low reflection disc only)

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Press once the CD PLAY button. AUTO pre-adjustment menu [ _ A U T _ Y O B I _ ] Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]

End of adjustment If adjustment is OK, Step 4.

Step 4 Grating adjustment, [ _ C O M P L E T E _ ]

adjustment value output Press once the MD STOP button. STEP 2

Step 5 Adjustment value output [ C a n ' t _ A D J . ]

Press once the MD STOP button. STEP 2 AUTO pre-adjustment menu

Setting Method

pre-adjustment is started.

• During automatic adjustment changes as follows. HAo→RFg→SAg→SBg→PTG→PCH→GTG→GCH→RCG→ SEG→RFG→SAG→HAO→HEO→TCO→LAO

If adjustment is NG, Step 5.

Remarks Display

• : Adjustment name, : Address

– 18 –

MD-X8H

2. AUTO adjustment mode

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. The slide moves to the innermost periphery, and automatic [ : _ _ _ _ _ _ ]

Step 4 Adjustment value output [ _ C O M P L E T E _ ]

Step 5 Continuous playback (pit section) [ s c ]

Step 6 Press the CD STOP button. Continuous playback (groove section) [ a a ]

Step 7 Adjustment value output [ C a n ' t _ A D J . ]

Setting Method

Press the CD PLAY button two times.

End of adjustment If adjustment is OK, Step 4.

Press the MD PLAY button. STEP 5 Press the MD STOP button. STEP 2

Continuous playback (groove section)

Press the MD STOP button. STEP 2 AUTO adjustment menu

AUTO adjustment menu [ A U T O _ A J S T _ ]

adjustment is started.

• In case of high reflection disc changes as follows. PEG→HAG

•In case of low reflection disc changes as follows. PEG→LAG→GCG→GEG→LAG

If adjustment is NG, Step 7.

• : Adjustment name, : Measurement value, : Address

Remarks Display

[ a c ]

3. RESULT sub-mode

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Indication of measurement value [ R F G : _ _ _ ] Step 4 Press once the CD PLAY button. Indication of measurement value [ R C G : _ _ _ ] Step 5 Press once the CD PLAY button. Indication of measurement value [ R T G : _ _ _ _ _ ] Step 6 Press once the CD PLAY button. Indication of measurement value [ G T G : _ _ _ _ _ ] Step 7 Press once the CD PLAY button. Indication of measurement value [ P C H : _ _ _ _ ] Step 8 Press once the CD PLAY button. Indication of measurement value [ G C H : _ _ _ _ ] Step 9 Press once the CD PLAY button. Indication of measurement value [ S A G : _ _ _ ] Step 10 Press once the CD PLAY button. Indication of measurement value [ S B G : _ _ _ ] Step 11 Press once the CD PLAY button. Indication of measurement value [ S E G : _ _ _ ] Step 12 Press once the CD PLAY button. Indication of measurement value [ S F G : _ _ _ ] Step 13 Press once the CD PLAY button. Indication of measurement value [ H A O : _ _ _] Step 14 Press once the CD PLAY button. Indication of measurement value [ H B O : _ _ _] Step 15 Press once the CD PLAY button. Indication of measurement value [ H E O : _ _ _] Step 16 Press once the CD PLAY button. Indication of measurement value [ H F O : _ _ _] Step 17 Press once the CD PLAY button. Indication of measurement value [ L A O : _ _ _] Step 18 Press once the CD PLAY button. Indication of measurement value [ L B O : _ _ _] Step 19 Press once the CD PLAY button. Indication of measurement value [ L E O : _ _ _] Step 20 Press once the CD PLAY button. Indication of measurement value [ L F O : _ _ _] Step 21 Press once the CD PLAY button. Indication of measurement value [ T C O : _ _ _ _] Step 22 Press once the CD PLAY button. Indication of adjustment error sequence No. [ Y O B : _ _ _ _] Step 23 Press once the CD PLAY button. Indication of adjustment status [ D I F : _ _ _ _] Step 24 Press once the CD PLAY button. Indication of pre-adjustment not completed (00)/completed (4B) [ A D J : _ _ _ _] Step 25 Press once the MD PLAY button. RESULT sub-menu state [ _ R S T _ Y O B I _ ]

•

: Measurement value, : Adjustment value, : Other various informations

• ressing the REC button causes reversing.

• If the VOL UP button is pressed while the set value is indicated, the set value increases, and the new set value is stored in RAM.

• If the VOL DOWN button is pressed while the set value is indicated, the set value reduces, and the new set value is stored in RAM.

• If the VOL UP/VOL DOWN button is held down, the set value changes continuously with 100 ms cycle.

• The digit of increase/decrease by the VOL UP/VOL DOWN button can be shifted with the aid of CD STOP button.

Setting Method

Press the CD PLAY button three times.

RESULT sub-menu [ _ R S T _ Y O B I _ ]

Remarks Display

– 19 –

MD-X8H

3. RESULT mode (final adjustment)

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Indication of set value [ H A G : _ _ _ ] Step 4 Press once the CD PLAY button. Indication of set value [ H B G : _ _ _ ] Step 5 Press once the CD PLAY button. Indication of set value [ L A G : _ _ _ ] Step 6 Press once the CD PLAY button. Indication of set value [ L B G : _ _ _ ] Step 7 Press once the CD PLAY button. Indication of set value [ P E G : _ _ _ ] Step 8 Press once the CD PLAY button. Indication of set value [ P F G : _ _ _ ] Step 9 Press once the CD PLAY button. Indication of set value [ G E G : _ _ _ ] Step 10 Press once the CD PLAY button. Indication of set value [ G F G : _ _ _ ] Step 11 Press once the CD PLAY button. Indication of set value [ G C G : _ _ _ _ ] Step 12 Press once the MD STOP button. RESULT menu state [ _ R E S U L T _ _ _ ]

• : Measurement value

• ressing the REC button causes reversing.

• If the VOL UP button is pressed while the set value is indicated, the set value increases, and the new set value is stored in RAM.

• If the VOL DOWN button is pressed while the set value is indicated, the set value reduces, and the new set value is stored in RAM.

• If the VOL UP/VOL DOWN button is held down, the set value changes continuously with 100 ms cycle.

• The digit of increase/decrease by the VOL UP/VOL DOWN button can be shifted with the aid of CD STOP button.

Press the CD PLAY button four times.

Setting Method

Remarks Display

RESULT menu [ _ R E S U L T _ _ _ ]

5. MANUAL auxiliary adjustment mode (only low reflection disc)

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Initial setting → Temperature measuring mode [ T M P : _ _ _ _ ] Step 4 Press once the CD PLAY button. Offset "0" setting → A signal offset tentative measurement [ H A o : _ _ _ ] Step 5 Press once the CD PLAY button. B signal offset tentative measurement [ H B o : _ _ _ ] Step 6 Press once the CD PLAY button. E signal offset tentative measurement [ H E o : _ _ _ ] Step 7 Press once the CD PLAY button. F signal offset tentative measurement [ H F o : _ _ _ ] Step 8 Press once the CD PLAY button. Offset tentative measurement → Laser ON [ L O N : _ _ _ _ _ _ ] Step 9 Press once the CD PLAY button. Innermost periphery move → RF side FG rough adjustment [ R F g : _ _ ] Step 10 Press once the CD PLAY button. Focus ATT (A signal) tentative setting [ S A g : ] Step 11 Press once the CD PLAY button. Focus ATT (B signal) tentative setting [ S B g : ] Step 12 Press once the CD PLAY button. RF side pit section TG adjustment [ P T G : _ _ ] Step 13 Press once the CD PLAY button. Pit section COUT level setting [ P C H : _ ] Step 14 Press once the CD PLAY button. Outer periphery move → RF side groove TG adjustment [ G T G : _ _ ] Step 15 Press once the CD PLAY button. Groove section COUT level setting [ G C H : _ ] Step 16 Press once the CD PLAY button. RF side TCRS adjustment [ R C G : _ _ ] Step 17 Press once the CD PLAY button. Tracking ATT (E signal) setting [ S E G : ] Step 18 Press once the CD PLAY button. Tracking ATT (F signal) setting [ S F G : ] Step 19 Press once the CD PLAY button. Indication of tracking EFMIO measurement [ g M I : _ _ _ ] Step 20 Press once the CD PLAY button. RF side pit section FG adjustment [R F G : _ _ ] Step 21 Press once the CD PLAY button. Focus ATT (A signal) setting [ S A G : ] Step 22 Press once the CD PLAY button. Focus ATT (B signal) setting [ S B G : ] Step 23 Press once the CD PLAY button. Offset "0" setting → A signal offset measurement [ H A O : _ _ _ ] Step 24 Press once the CD PLAY button. B signal offset measurement [ H B O : _ _ _ ] Step 25 Press once the CD PLAY button. E signal offset measurement [ H E O : _ _ _ ] Step 26 Press once the CD PLAY button. F signal offset measurement [ H F O : _ _ _ ] Step 27 Press once the CD PLAY button. TCRS signal offset measurement [ T C O : _ _ _ ] Step 28 Press once the CD PLAY button. A signal offset measurement [ L A O : _ _ _ ] Step 29 Press once the CD PLAY button. B signal offset measurement [ L B O : _ _ _ ] Step 30 Press once the CD PLAY button. E signal offset measurement [ L E O : _ _ _ ] Step 31 Press once the CD PLAY button. F signal offset measurement [ L F O : _ _ _ ]

•

Press the CD PLAY button five times.

: Measurement value, : Set value, : Account value

Setting Method

MANUAL auxiliary adjustment mode [ _ M N U _ Y O B I _ ]

Remarks Display

– 20 –

MD-X8H

• If the VOL UP/VOL DOWN button is pressed during setting indication, the setting increases/decreases, and the new setting is stored in RAM.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

• If the REC button is pressed, the setting returns step by step excepting the following case. A signal offset (HAO) → Offset tentative setting → RF side FG adjustment (RFG) RF side TCRS adjustment (RCG) → RF side groove TG adjustment (GTG) RF side groove TG adjustment (GTG) → Innermost periphery move → RF side pit section adjustment (PTG) RF side pit TG adjustment (PTG) → RF side FG rough adjustment (RFg) → Laser lighting (LON) Laser lighting (LON) → Offset "0" setting → A signal offset tentative measurement (HAo) If the measurement value is within the OK range, "

6. MANUAL adjustment mode

High reflection disc

Step No.

• If the MD STOP button is pressed while the MANUAL adjustment menu is displayed, the state is changed to the TEST mode STOP

state.

• If the REC button is pressed, the setting returns step.

Setting Method

Press the CD PLAY button six times.

Low reflection disc

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Initial setting → Temperature measuring mode [ T M P : _ _ _ _ ] Step 4 Press once the CD PLAY button. Laser ON [ L O N : _ _ _ _ _ _ ] Step 5 Press once the CD PLAY button. Innermost periphery move → Tracking ATT (E signal) setting [ P E G : ] Step 6 Press once the CD PLAY button. Tracking ATT (F signal) setting [ P F G : ] Step 7 Press once the CD PLAY button. Indication of tracking EFMIO measurement (pit section) [ P M I : _ _ _ ] Step 8 Press once the CD PLAY button. Focus ATT (A signal) setting [ L A g : ] Step 9 Press once the CD PLAY button. Focus ATT (B signal) setting [ L B g : ] Step 10 Press once the CD PLAY button. Outside periphery move → Track closs setting [ G C G : ] Step 11 Press once the CD PLAY button. Tracking ATT (E signal) setting [ G E G : ] Step 12 Press once the CD PLAY button. Tracking ATT (F signal) setting [ P F G : ] Step 13 Press once the CD PLAY button. Indication of tracking EFMIO measurement (groove section) [ G M I : _ _ _ ] Step 14 Press once the CD PLAY button. Focus ATT (A signal) setting [ L A G : ] Step 15 Press once the CD PLAY button. Focus ATT (B signal) setting [ L B G : ]

• If the MD STOP button is pressed while the MANUAL adjustment menu is displayed, the state is changed to the TEST mode STOP

state.

• If the REC button is pressed, the setting returns step by step excepting the following case.

Setting Method

Press the CD PLAY button six times.

Track closs ATT setting (GTG) → Innermost periphery move → Focus ATT (B signal) setting (LBg)

" appears on the 8th character.

Remarks Display

MANUAL adjustment menu [ _ M N U _ A J S T _ ]

Remarks Display

MANUAL adjustment menu [ _ M N U _ A J S T _ ]

7. EEPROM setting mode

a) Focus setting

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Focus setting menu [ _ _ F o c u s _ _ _ ] Step 4 Press once the MD PLAY button. Focus system loop filter gain constant setting [ F G _ _ _ _ _ _ ] Step 5 Press once the CD PLAY button. Focus system loop filter f characteristic constant 1 setting [ F F 1 _ _ _ _ _ ] Step 6 Press once the CD PLAY button. Focus system loop filter f characteristic constant 2 setting [ F F 2 _ _ _ _ _ ] Step 7 Press once the CD PLAY button. FZC oscillation histerisis level setting a [ F Z H L E V _ _ ] Step 8 Press once the CD PLAY button. Comparison level setting (normal) in case of FOK generation [ F O K L E V n _ ]

Setting Method

Press the CD PLAY button seventimes.

EEPROM setting menu [E E P R O M _ S E T]

Remarks Display

– 21 –

MD-X8H

Step No.

Step 9 Press once the CD PLAY button. Comparison level setting in case of FOK generation [ F O K L E V f _ ]

Step 10 Press once the CD PLAY button. LPF coefficient setting (normal) in case of FOK generation [ F O K L P F n _ ] Step 11 Press once the CD PLAY button. LPF coefficient setting in case of FOK generation [ F O K L P F f _ ]

Step 12 Press once the CD PLAY button. Waiting time setting in case of auto-focus retraction [ W A I T f_ _ _ ]

•

: Setting volue

• Pressing the REC button causes reversing.

• If the VOL UP button is pressed while the specific setting item is indicated, the setting increases, and the new setting is set in LSI.

• If the VOL DOWN button is pressed while the specific setting item is indicated, the setting decreases, and the new setting is set in LSI.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

Setting Method

(when focus is "ON")

Remarks Display

b) Spindle setting

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Focus setting menu [ _ _ F o c u s _ _ _ ] Step 4 Press once the CD PLAY button. Spindle setting menu [ _ S p i n d l e _ _ ] Step 5 Press once the MD PLAY button. Spindle system loop filter gain constant setting [ S P G _ _ _ _ _ ]

Step 6 Press once the CD PLAY button. Spindle system loop filter gain constant setting [ S P G _ i n _ _ ]

Step 7 Press once the CD PLAY button. Spindle system loop filter gain constant setting [ S P G _ m i d _ ]

Step 8 Press once the CD PLAY button. Spindle system loop filter gain constant setting [ S P G _ o u t _ ]

Step 9 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 1 setting [ S P 1 _ _ _ _ _ ] Step 10 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 2 setting [ S P 2 _ _ _ _ _ ] Step 11 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 3 setting [ S P 3 _ _ _ _ _ ] Step 12 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 4 setting [ S P 4 _ _ _ _ _ ] Step 13 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 5 setting [ S P 5 _ _ _ _ _ ] Step 14 Press once the CD PLAY button. Spindle drive output limitter setting [ S P D L I M _ _ ]

•

: Setting volue

• Pressing the REC button causes reversing.

• If the VOL UP button is pressed while the specific setting item is indicated, the setting increases, and the new setting is set in LSI.

• If the VOL DOWN button is pressed while the specific setting item is indicated, the setting decreases, and the new setting is set in LSI.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

Press the CD PLAY button seven times.

Setting Method

EEPROM setting menu [E E P R O M _ S E T]

(Until tracking servo ON)

(After tracking servo ON, inner periphery)

(After tracking servo ON, center)

(After tracking servo ON, outside periphery)

Remarks Display

c) Tracking setting

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Focus setting menu [ _ _ F o c u s _ _ _ ] Step 4 Step 5 Press once the MD PLAY button. Tracking system loop filter gain constant setting [ T G _ _ _ _ _ _ ] Step 6 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 1 setting [ T F 1 _ _ _ _ _ ] Step 7 Press once the CD PLAY button. Spindle system loop filter f characteristic constant 2 setting [ T F 2 _ _ _ _ _ ] Step 8 Press once the CD PLAY button. Setting of tracking system servo mode 4 [ S V C N T 4 _ _ ] Step 9 Press once the CD PLAY button. Tracking deceleration pulse level setting (for one line jump) [ T R B L V 0 _ _ ] Step 10 Press once the CD PLAY button. Tracking deceleration pulse level setting (for 10 line jump) [ T R B L V t _ _ ] Step 11 Press once the CD PLAY button. Tracking kick pulse level setting (for one line jump) [ T R K L V 0 _ _ ] Step 12 Press once the CD PLAY button. Tracking kick pulse level setting (for 10 line jump) [ T R K L V t _ _ ] Step 13 Press once the CD PLAY button. Tracking drive pulse width setting (for one line jump) [ T D P W o _ _ _ ] Step 14 Press once the CD PLAY button. Tracking drive pulse width setting (for 10 line jump) [ T R K L V 0 _ _ ] Step 15 Press once the CD PLAY button. Tracking slip stop time setting (for one line jump) [ S L C T 0 _ _ _ ] Step 16 Press once the CD PLAY button. Tracking slip stop time setting (for 10 line jump) [ S L C T t _ _ _ ] Step 17 Press once the CD PLAY button. Tracking slip stop time setting (move) [ S L C T m _ _ ]

Press the CD PLAY button seven times.

Press the CD PLAY button two times.

Setting Method

Remarks Display

EEPROM setting menu [E E P R O M _ S E T]

Tracking setting menu [ _ T r a c k i n g _ ]

– 22 –

MD-X8H

Step No.

Step 18 Press once the CD PLAY button. TCRS comparison level 1 for high reflection [ T C R S C 1 P _ ] Step 19 Press once the CD PLAY button. Comparison level in case of COUT generation (playback) [ C O T L V P _ ] Step 20 Press once the CD PLAY button. Comparison level in case of COUT generation (pecord) [ C O T L V r _ ] Step 21 Press once the CD PLAY button. Auto-move waiting time setting [ W A I T m_ _ _ ]

• : Setting volue

• Pressing the REC button causes reversing.

• If the VOL UP button is pressed while the specific setting item is indicated, the setting increases, and the new setting is set in LSI.

• If the VOL DOWN button is pressed while the specific setting item is indicated, the setting decreases, and the new setting is set in LSI.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

Setting Method

Remarks Display

d) Slide setting

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Focus setting menu [ _ _ F o c u s _ _ _ ] Step 4 Step 5 Press once the MD PLAY button. Slide system loop filter gain constant setting [ S L G _ _ _ _ _ ] Step 6 Press once the CD PLAY button. Slide system loop filter f characteristic constant 2 setting [ S L 2 _ _ _ _ _ ] Step 7 Press once the CD PLAY button. Slide output limitter setting [ S L D L I M _ _ ] Step 8 Press once the CD PLAY button. Slide servo output dead zone level setting [ S L D L E V _ _ ] Step 9 Press once the CD PLAY button. Slide kick pulse level setting (forced move) [ S L K L V k _ _ ] Step 10 Press once the CD PLAY button. Slide kick pulse level setting (for 10 lines jump auxiliary use) [ S L K L V t _ _ ] Step 11 Press once the CD PLAY button. Slide kick pulse level setting (move) [ S L K L V m _ _ ]

: Setting volue

•

• Pressing the REC button causes reversing.

• If the VOL UP button is pressed while the specific setting item is indicated, the setting increases, and the new setting is set in LSI.

• If the VOL DOWN button is pressed while the specific setting item is indicated, the setting decreases, and the new setting is set in LSI.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

Setting Method

Press the CD PLAY button seven times.

Press the CD PLAY button three times.

EEPROM setting menu [E E P R O M _ S E T]

Slide setting menu [ _ _ _ S l e d _ _ _ ]

Remarks Display

Temperature measurement value correction table

Ambient temperature

+ 12.2 °C ~ + 15.8 °C -0 3 H + 15.9 °C ~ + 19.6 °C -0 2 H + 19.7 °C ~ + 23.2 °C -0 1 H + 23.2 °C ~ + 26.8 °C ± 0 H + 26.9 °C ~ + 30.7 °C +0 1 H + 30.8 °C ~ + 34.3 °C +0 2 H + 34.4 °C ~ + 37.9 °C +0 3 H

correction

EEPROM record value = Microcomputer measurement value +

Correction

* EEPROM record value

Value to be measured by the microcomputer at +25°C

* Microcomputer measurement value

Value to be measured by the microcomputer at specific temperature

* Correction value

Correction value for conversion to measurement value at +25°C (see the table shown left)

Note

1. Do without mechanical connection.

2. Do immediately after turning on the power.

• Temperature code check

The temperature code is read after automatic adjustment. If it is within the range shown below, the adjustment is OK.

Ambient temperature

+ 19.6 °C ~ + 30.7 °C0 6

+ 8.7 °C ~ + 19.6 °C0 7

temperature code

– 23 –

MD-X8H

e) TEMP setting

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Focus setting menu [ _ _ F o c u s _ _ _ ] Step 4 Step 5 Press once the MD PLAY button. TEMP reference value setting [ T E M P _ _ ]

Press the CD PLAY button seven times.

Press the CD PLAY button four times.

Setting Method

Remarks Display

EEPROM setting menu [E E P R O M _ S E T]

TEMP setting menu [ _ _ _ T e m p _ _ _ ]

Step No.

Step 1 Step 2 Press the CD MD EDIT button. TEMP reference value setting [ T E M P _ _ ]

•

: Setting volue, : Measurement value

• If the VOL UP button is pressed while the specific setting item is indicated, the setting increases, and the new setting is set in LSI.

• If the VOL DOWN button is pressed while the specific setting item is indicated, the setting decreases, and the new setting is set in LSI.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

EJECT state (or mechanism-less state)

Setting Method

Remarks Display

[ _ _ E J E C T _ _ _ ]

f) CONTROL setting

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Step 3 Press once the MD PLAY button. Focus setting menu [ _ _ F o c u s _ _ _ ] Step 4 Step 5 Press once the MD PLAY button. CONTROL 1 setting [ C O N T R L 1_ ] Step 6 Press once the CD PLAY button. CONTROL 2 setting [ C O N T R L 2_ ] Step 7 Press once the CD PLAY button. Setting of spin kick level in MOVE state [ S P K L E V m_ ] Step 8 Press once the CD PLAY button. Setting of readjustment interval time (minutes) [ A D J T T M_ _ ] Step 9 Press once the CD PLAY button. Setting of equalizer coefficients A and D (high reflection) [ H D E Q A D_ _ ] Step 10 Press once the CD PLAY button. Setting of equalizer coefficients A and D (low reflection pit) [ L D E Q A D_ _ ] Step 11 Press once the CD PLAY button. Setting of equalizer coefficients A and D (low reflection groove) [ G D E Q A D_ _ ] Step 12 Press once the CD PLAY button. Setting of equalizer coefficients B and C (high reflection) [ H D E Q B C_ _ ] Step 13 Press once the CD PLAY button. Setting of equalizer coefficients B and C (low reflection pit) [ L D E Q B C_ _ ] Step 14 Press once the CD PLAY button. Setting of equalizer coefficients B and C (low reflection groove) [ G D E Q B C_ _ ] Step 15 Press once the CD PLAY button. Setting of autolevel slicer gain (high reflection) [ H A L S G_ _ _ ] Step 16 Press once the CD PLAY button. Setting of autolevel slicer gain (low reflection pit) [ L A L S G_ _ _ ] Step 17 Press once the CD PLAY button. Setting of autolevel slicer gain (low reflection groove) [ G A L S G _ _ ] Step 18 Press once the CD PLAY button. Setting of autolevel slicer offset (high reflection) [ H A L S O F_ _ ] Step 19 Press once the CD PLAY button. Setting of autolevel slicer offset (low reflection pit) [ L A L S O F S _ _ ] Step 20 Press once the CD PLAY button. Setting of autolevel slicer offset (low reflection groove) [ G A L S O F S _ _ ]

Press the CD PLAY button seven times.

Press the CD PLAY button five times.

Setting Method

Remarks Display

EEPROM setting menu [E E P R O M _ S E T]

CONTROL setting menu [ _ C o n t r o l _ _ ]

Step No.

Step 1 Step 2 Press the TRACK EDIT button. CONTROL 1 setting [ C O N T R L 1_ ] Step 3 Press once the CD PLAY button. CONTROL 2 setting [ C O N T R L 2_ ]

•

: Setting volue

• If the VOL UP button is pressed while the specific setting item is indicated, the setting increases, and the new setting is set in LSI.

• If the VOL DOWN button is pressed while the specific setting item is indicated, the setting decreases, and the new setting is set in LSI.

• If the VOL UP/VOL DOWN button is held down, the setting changes continuously with 100 ms cycle.

• CONTROL 1 Pit 7 : High frequency superposition ON/OFF in record mode (0:OFF, 1:ON) Pit 6~4 : Play start SD number (30 to 100 sector, 10 sector step) Pit 2~0 : High speed jump over-run (384 to 830 lines, 64 lines step)

• CONTROL 2 Pit 4~0 : EEPROM version (a~)

EJECT state (or mechanism-less state)

Setting Method

Remarks Display

[ _ _ E J E C T _ _ _ ]

– 24 –

MD-X8H

8. TEST-PLAY mode

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Press the CD MD EDIT button. TEST-PLAY menu [ T E S T _ P L A Y _ ] Step 3 Press once the CD STOP button. ADRES setting (Target address initial value is indicated) [ A D R E S _ 0 0 5 0 ]

Step 4 Continuous playback (pit section) (Address + C1 error indication) [s c ]

Step 5 Press once the CD STOP button. (Address + ADIP error indication) [a a ]

Step 6 Press once the MD STOP button. TEST-PLAY menu [ T E S T _ P L A Y _ ]

• If the MD STOP button is pressed while the TEST-PLAY menu is displayed, TEST mode STOP state is set.

• If the MD PLAY button is pressed while the TEST-PLAY menu is displayed, continuous playback is started from the current pickup position.

• Whenever the CD

0 0 5 0 → 0 3 C 0 → 0 7 0 0 → 0 8 A 0 → 0 0 5 0 → …………

• Whenever the CD STOP button is pressed in the address setting mode, the digit which is changed with -

0 0 5 0 → 0 0 5 0 → 0 0 5 0 → 0 0 5 0 → …………

• The digit of address which has been specified with - / + and CD STOP button in the address setting mode is set to +01H/-01H.(0~F)

* If the -

• If the TRACK EDIT button is pressed in the continuous playback mode, the number of jump lines changes as follows.

* After the number of jump lines is indicated for one second, the address indication is restored. [

• If the -

direction.

* If the -

• Whenever the CD STOP button is pressed in the continuous playback mode, the indication changes as follows.

* Pit section Continuous playback (SUBQ address indication + C1 error indication) remains. [s * Groove section Continuous playback (ADIP address indication + C1 error indication) remains. [a c ]

/ + button is held down, the setting changes continuously with 100 ms cycle.

1 line → 10 line → 400 line → 1 line → …………

/ + button is pressed in the continuous playback mode, the specified number of lines is jumped in the FWD/REV

/ + button is held down, the setting changes with 100 ms cycle.

Setting Method

Press once the MD PLAY button.

Continuous playback (groove section)

MD EDIT button is pressed in the address setting mode, the address changes as follows.

Continuous playback (ADIP address indication + ADIP error indication) remains. [a a ]

Continuous playback (ADIP address indication + C1 error indication) remains. [a

While searching, set the search output to "H". To start continuous play, return it to "L".

(Address + C1 error indication) [a c ]

↓

………

↓

Remarks Display

/ + changes as follows.

T R _ J U M P ]

c ]

• : Adress, : Error late, : Jump lines

9. TEST-REC mode

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Press the CD MD EDIT button. TEST-REC menu [ T E S T _ R E C _ _ ] Step 3 Press once the CD STOP button. ADRES setting (indication of address initial value) [ a 0 0 5 0 _ p w ] Step 4 Press once the MD PLAY button.

Step 5 Press once the MD STOP button. TEST-REC menu [ T E S T _ R E C _ _ ]

• If the MD STOP button is pressed while the TEST-PLAY menu is displayed, TEST mode STOP state is set.

• If the MD PLAY button is pressed while the TEST-REC menu is displayed, continuous record is started from the current pickup position.

• Whenever the CD MD EDIT button is pressed in the address setting mode, the address changes as follows.

0 0 5 0 → 0 3 C 0 → 0 7 0 0 → 0 8 A 0 → 0 0 5 0 → …………

• Whenever the CD STOP button is pressed in the address setting mode, the digit which is changed with -

0 0 5 0 → 0 0 5 0 → 0 0 5 0 → 0 0 5 0 → …………

• The digit of address which has been specified with -

* If the - / + button is held down, the setting changes continuously with 100 ms cycle.

• If the VOL UP/VOL DOWN button is pressed in TEST-REC mode and continuous record mode, the laser record power changes.

(Servo gain changes also according to the record power.)

•

: Adress, : Laser power cord

Setting Method

While searching, set the search output to "H". To start continuous play, return it to "L". Continuous recording

/ + and CD STOP button in the address setting mode is set to +01H/-01H.(0~F)

Remarks Display

[ a p w ]

/ + changes as follows.

10. INNER mode

Step No.

Step 1 Testmode STOP state [ t s m e ] Step 2 Press the TRACK EDIT button. INNER menu [ _ _ I N N E R _ _ ] Step 3 Press once the MD PLAY button. INNER switch position measurement [s c ]

Step 4 Press once the MD STOP button. INNER menu [ _ _ I N N E R _ _ ]

•

• Press the MD STOP button while the INNER menu is displayed, to shift to the TEST mode STOP state.

: Adress

Setting Method

(SUBQ address and C1 error are also indicated.)

Remarks Display

– 25 –

MD-X8H

adjusting hole

Spindle motor

Check the Lissajou's waveform, shifting the mounting position with a screwdriver (to be fitted into the disc motor adjusting hole).

Spindle Motor

Adjusting hole

11. EJECT mode

Step No.

Setting Method

Step 1 Testmode EJECT state [ _ _ E J E C T _ _ _ ] Step 2 Press oncethe CD STOP button. Max. power output state [ x p w _ _ _ _ _ _ _ ] Step 3 Press once the CD STOP button. Record power output state [ r p w _ _ _ _ _ _ _ ] Step 4 Press once the CD STOP button. Playback power output state [ p p w _ _ _ _ _ _ _ ] Step 5 Press the CD MD EDIT button. TEMP setting of EEPROM setting

(Refer to TEMP setting of EEPROM)

Step 6 Press the TRACK EDIT button. CONTROL setting of EEPROM setting

(Refer to CONTROL setting of EEPROM)

Lead-in switch position measurement mode

Note: Adjust the lead-in switch position to 5FF85 to FFD2.

1. Loosen the screw (A) x 2 pcs. which fix the mechanism switch PWB.

2. Retighten the screw, pressing the mechanism switch PWB in the arrow direction, and then measure the lead-in switch position again.

After position adjustment fix with the two screws (A). (See Fig. 26-1.) Note: After tightening the two screws on the PWB apply Screw Lock.

Forced rotation of loading motor

While the display indication is test mode STOP state or EJECT state, the loading motor can be forcibly rotated by press theVOL UP/DOWN button.

Remarks Display

Loosen the two screws (A).

Lead In Switch

Mechanism Switch PWB

Figure 26-1

Mechanism Adjustment

1. Optical pickup grating inspecting method

42 pin of IC 1101

GND (TP1131)

26 pin of IC 1101

EOUT (TP1133)

25 pin of IC 1101

FOUT (TP1132)

100K

470p

100K

OSILLOSCOPE

GND CH1 CH2

LISSAJOUS'S WAVEFORM

Less thana:b = 3:1

Figure 26-2 Optical Pickup Grating Deviation

Measuring Method

After the automatic adjustment is performed in the AUTO mode (test mode) with the aid of high refection MD disc ("COMPLATE" is displayed), the Lissajous's waveform (x-y) is adjusted.

1. Slightly loosen the 3 screws of spindle moto, and maken an adjustment, observing the Lissajous's waveform.

2. After adjustment tighten the screw in arder of 1 , 2 , 3 .

2. Jitter adjustment and checking method

Jitter Meter

Figure 26-3

After performing automatic adjustment in AUTO mode of TEST mode using the low reflection MD disc, check this jitter in pit continuous playback and groove continuous playback mode.

1pin of IC 1201 (TP1274)

EFMMON

88 pin of IC 1201 (TP1275)

GND

Figure 26-4 Jitter connection diagram

– 26 –

Error display

EXPLANATION OF ERROR DISPLAY

Errors

MD-X8H

Corrective action

Can't REC

Can't COPY

Din UNLOCK

TOC FULL

UTOC ERR R

UTOC ERR A

UTOC ERR L0~4

NOT AUDIO

? DISC

DISC FULL

PLAYBACK MD

PROTECTED

Can't EDIT

TEMP OVER

• Defect occurred successively 10 times during REC-PLAY.

• As a result of occurrence of defect during REC-PLAY the recordable cluster became zero.

• Adress is unreadable. REC state connot be set for 20 seconds although retry is repeated.

• The following judgement is made according to the channel status of digital signal which was input from D-IN during RECPAUSE or REC-PLAY. (1) Other than audio signal (2) Other than signals of home-use appliances (3) Copy NG due to inversion of copy bit in CD.

• The digital signal which was input from D-IN during RECPAUSE, REC-PLAY or CD FUNC playback caused the following. (1) PLL of digital IN was unlocked. (2) Locking occurred in condition other than FS = 44.1 kHz

• There were no areas to record music or character infomation.(music name, disc name, etc.) during REC-PLAY.

• When an attempt to start is made, recordable area does not remain.

• ETNO > LTNO

• FTNO ≠ 0 or 1

• UTOC recorded on disc could not be read.

• Start address > End address

• Any data of UTOC 0 to 4 looped.

• Nonaudio data was recorded in the track mode of currently

selected TNO.

• Data "MINI" of system ID which has been written in TOC with ASCII code is not correct.

• The disc type written i TOC does not correcpond to pre/ mastered MD, recording MD and hybrid MD.

• When an attempt to set REC-PAUSE was made, there were no recordable areas.

• An attempt to set REC-PAUSE or to start editing was made on the playback-only disc.

• An attempt to record or edit was made on the record/playback disc with its careless rease preventing tab being in rease preventing state.

• An attempt was made t oedit the track which was writeprotected by information written in UTOC.

• Specific editing conditions were not satisfied.

• Owing to occurrence of some trouble internal temperature of

set (MD unit) rose excessively.

• Check that the disc is free from flaw, dust and fingerprint.

Check whether there is any black spot. Check for disc disalignment and run-out.

• Check whether CD is copy-inhibited one. (An exabple: CD-R)

• Check whether there is any abnormality

in the D-IN signal line.

• Replace the disc with a recording/ playback disc in which an area to register UTOC remains.

• UTOC data is not normal. Replace the disc with other disc.

• Select other TNO or replace the disc with

other disc.

• The loaded disc is not applicable. Replace the disc, and check.

• Replace the disc with other recording disc in which recording area remains.

• The loaded disc is a Playback-only disc. Replace the disc with a recording disc.

• Return the careless erase preventing tab

to its initial position, and redo.

• The track on which an attempt to edit was

made is a write-protected track. Redo on another track.

• The applied operation procedure is not proper. Redo, applying the ocrrect procedure.

• Check by troubleshooting.

• Check whether the ambient temperature is too high.

DISC ERR RD

PA WR

TOC ERR S TOC ERR R TOC ERR T

UTOC W ERR

FOCUS ERROR

• Read data was not correct or data could not be read correctly.

• Trouble occurred during recording if music data, resulting in record failure.

• TOC was read but data was not correct.

• TOC could not be rad.

• Trouble occurred during rewriting of UTOC, resulting in UTOC

rewriting failure.

• After the disc was loaded, focusing failure occurred.

– 27 –

• Data of TOC or UTOC is not normal or disc las flaw. Replace the disc with other disc.

• The TOC information recorded on disc does not conform to the MD standard. Replace the disc with other disc.

• The disc has flaw. Replace the disc with other disc.

• Check that the disc is free from flaw,

dust, fingerprint and black spot. Check for disc disalignment and run-out.

MD-X8H

Error display

BLANK MD

DEFECT

TOC W ERROR

MD ERROR

PROTECT

• UTOC was read but total TNO and the number of characters of NAME was 0?

• Focusing error was caused by shock during REC-PLAY.

• Although UTOC can be read but UTOC cannot be rewritten.

• Data of EEPROOM is not correct.

• As a result of occurrence of failure in the power amplifier circuit stage the power supply is turned off, and the "PROTECT" error display blinks.

Errors

* For details refer to Trouble-shooting (page75).

EXPLANATION OF MECHANISM ERROR

Error display

M E C H A _ E R R 1 _ * Ejection failure M E C H A _ E R R 2 _ * Head-up failure M E C H A _ E R R 3 _ * Head-down failure

HINF (IC1401 97 PIN) * = E Ejection completion position < 1.3 V * = MHorizontal midway position > 3.06 V * = L Load completed position 1.853~2.48 V * = DHead-down position 1.3~1.853 V

Corrective action

• Perform recording to check that the disc is recordable disc.

• Check that the disc is free from flaw, dust, fingerprint and black spot. Check for disc disalignment and run-out.

• Check that the record head contact is normal. Check that there is no broken wire between PWB and the recording head.

• Once reset, and redo. If error occurs persistently, replace EEPROM.

• Check, applying the trouble-shooting described below.

Errors

E2-PROM (IC1402) writing procedure

1. Procedure to replace E2-PROM and to write the initial value of microcomputer in E2-PROM

(1) Replace E2-PROM. (2) Refer to the latest E2-PROM data list. (3) Hold down the

POWER button to enter the test mode.

(4) Indication of version.

[ t s m

(5) Press the CD PLAY key 7 times.

[ E E P R O M S E T ]

(6) Perform the operation shown in the "E2-PROM setting mode

chart", compare the indication with the E make a setting according to the E2-PROM data list, using VOL UP botton or VOL DOWN button.

(7) Set the temperature reference value.

(Refer to "Temperature reference setting procedure".) (8) The setting must conform to the E (9) Turn off power supply to write in E

button and MD PLAY button, and press the

e ]

-PROM version (c to z) Microcomputer ROM version Model code

-PROM data list, and

-PROM data list.

-PROM.

2. Temperature reference value setting procedure

(to be executed at room temperature within 21 to 29°C)

(1) Test mode stop state.

[ t s m

(2) Crrect temperature depending on ambient temperature according

to the following table.

Ambient temperature

An example: When ambient temperature is 22°C and meadured

(3) Press the CD PLAY button 7 times.

[ E E P R O M S E T ]

(4) Press the MD PLAY button 1 times.

[ F O C U S ]

(5) Press the CD PLAY button 4 times.

[ T e m p ]

(6) Press once the MD PLAY button.

[ T E M P

: Measured temperature, : Temperature setting

(7) Set temperature to the value determined above, using the

VOL UP or VOL DOWN button.

(8) Press the MD STOP button.

[ T e m p ]

e ]

correction

temperature is 73H Temperature setting = 73 H - 01 H

= 72 H * When the measured temperature fluctuates between two values, take lower one (if temperature fluctuates between 73H and 72H, take 72H).

]

– 28 –

E2-PROM Data List

Focus setting

Item indication

F G 9 7 H F F 1 9 E H F F 2 E 0 H F Z H L E V E D H F O K L E V n 0 8 H F O K L E V f 8 8 H F O K L P F n 0 0 H F O K L P F f 8 8 H W A I T f 9 0 H

Spin setting

Item indication Setting

S P G 2 0 H S P G — i n B 8 H S P G — m i d 7 6 H S P G — o u t 5 0 H S P 1 1 0 H S P 2 8 7 H S P 3 E 3 H S P 4 E 3 H S P 5 1 0 H S P D L I M 7 8 H

Tracking setting

Item indication

T G 4 5 H T F 1 7 0 H T F 2 E 0 H S V C N T 4 0 1 H T R B L V o 5 3 H T R B L V t 6 0 H T R K L V o 4 C H T R K L V t 3 8 H T D P W o 8 9 H T D P W t 1 A H S L C T o 0 0 H S L C T t 4 0 H S L C T m 5 3 H T C R S C I P 1 6 H C O T L V P 1 4 H C O T L V r 2 8 H W A I T m F F H

Setting

Slide setting

Item indication

S L G 3 5 H S L 2 2 7 H S L D L I M 6 5 H S L D L E V 1 6 H S L K L V k 5 5 H S L K L V t 3 A H S L K L V m 5 5 H

Control setting

Item indication Setting

C O N T R L 1 8 0 H C O N T R L 2 0 2 H S P K L E V m 2 6 H A D J T T M 1 4 H H D E Q A D 9 0 H L D E Q A D 8 F H G D E Q A D 9 1 H M D E Q B C 9 0 H L D E Q B C 8 F H G D E Q B C 8 A H H A L S G 2 1 H L A L S G 2 1 H G A L S G 2 1 H H A L S O F S F E H L A L S O F S 0 0 H G A L S O F S 0 0 H

MD-X8H

Setting

– 29 –

MD-X8H

CD PLAY

REC

S P K L E V m _

A D J T T M _ _

CD PLAY

CD PLAY REC

REC

H D E Q A D _ _

L D E Q A D _ _

CD PLAY

CD PLAY REC

REC

G D E Q A D _ _

H D E Q B C _ _

CD PLAY

CD PLAY REC

REC

L D E Q B C _ _

G D E Q B C _ _

CD PLAY

CD PLAY REC

REC

H A L S E G _ _

L A L S E G _ _

CD PLAY

CD PLAY REC

REC

G A L S G _ _ _

H A L S O F S _

CD PLAY

CD PLAY REC

REC

L A L S O F S _

G A L S O F S _

CD PLAY

CD PLAY REC

REC

t m s e

Test mode STOP state

EEPROM setting menu

EJECT state

_ _ Focus_ _ _

F G _ _ _ _ _ _ TG _ _ _ _ _ _

_ S p i n d l e _ _ _ T r a c k i n g _ _ C o n t r o l _ __ _ _ S l e d _ _ _ _ _ _ Temp _ _ _

F F 1 _ _ _ _ _ T F 1 _ _ _ _ _

T F 2 _ _ _ _ _

T R B L V o _ _

T R B L V t _ _

T R K L V o _ _

T D P W o _ _ _

S L C T o _ _ _

S L C T t _ _ _

S L C T m _ _ _

C O T L V p _ _

C O T L V r _ _

T D P W t _ _ _

T R K L V t _ _

S P G _ _ _ _ _ S L G _ _ _ _ _ T E M P_ _ C O N T R L 1 _

C O N T R L 2 _S L 2 _ _ _ _ _

S L D L E V _ _

S L K L V k _ _

S L K L V t _ _

S L K L V m _ _

S P 1 _ _ _ _ _

S P 2 _ _ _ _ _

S P 3 _ _ _ _ _

S P 4 _ _ _ _ _

S P 5 _ _ _ _ _

S P G _ i n _ _

S P G _ m i d _

S P G _ o u t _

F F 2 _ _ _ _ _

F Z C L E V _ _

F O K L E V n _

F O K L E V f _

F O K L P F n _

F O K L P F f _

W A I T f _ _ _

W A I T m _ _ _

_ _ EJECT _ _ _

E E P R O M _ S E T

CD PLAY X7

CD PLAY

MD PLAY

CD PLAY

MD PLAY MD PLAY MD PLAY MD PLAY

CD PLAY REC

CD PLAY

CD PLAY REC

REC

REC REC REC

REC

S V C N Y 4 _ _

CD PLAY

REC

CD PLAY

CD PLAY X2 CD PLAY X3 CD PLAY X4

CD MD

EDIT

TRACKCD PLAY X5

MD PLAY

S P D L I M _ _

S L D L I M _ _

CD PLAY

REC

E2-PROM Setting Mode Chart

Figure 30

– 30 –

+ 82 hidden pages