Sharp MD-MT88H Service Manual Download

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MD-MT88H/99H

WAVEFORMS OF MD CIRCUIT

NORM:200kS / s

1994 / 12 / 15 22:54:19

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.000V

Main : 10K
Zoom : 10K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : NORMAL
Type : EDGE CH4
Detay : 0.0ns
Hold OFF : MINIMUM

TP208

(FEMON)

CK204

(FOK)

TP101

(F+)

CK205

(SENSE)

Stopped

CH1=1mV

DC 10:1

CH3=5V

DC 10:1

CH4=2V

DC 10:1

(50ms/div)

50ms/div

CH2=500mV

DC 10:1

NORM:100MS / s

1994 / 12 / 16 00:24:17

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 5K
Zoom : 5K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : AUTO
Type : EDGE CH3
Detay : 0.0ns
Hold OFF : MINIMUM

IC501

(SDTi)

IC501

(MCLK)

IC501

(SCLK)

IC501

(LRCK)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

CH4=2V

DC 10:1

(50us/div)

50us/div

CH2=2V

DC 10:1

ENV

1994 / 12 / 16 01:03:40

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.000V
CH4 : 0.00V

=Trigger=

Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM

TP201

(EFMMON)

TP210

(TEMON)

TP209

(TOTMON)

Stopped

CH1=1V

DC 10:1

CH3=500mV

DC 10:1

(2ms/div)

2ms/div

CH2=2V

DC 10:1

ENV

1994 / 12 / 15 23:31:21

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM

IC201

(SPDRR)

TP601

(VM)

Stopped

CH1=2V

DC 10:1

(50ms/div)

50ms/div

CH2=2V

DC 10:1

FULL

20MHz

Bandwidth

Smooth

OFF

1994 / 12 / 18 09:26:46

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : AUTO
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM

TP208

(FEMON)

TP210

(TEMON)

TP663

(SL+)

TP664

(SL-)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

CH4=2V

DC 10:1

(1s/div)

1s/div

CH2=2V

DC 10:1

ENV

1994 / 12 / 16 01:23:16

=Filter=

=Tracel= P-P 1.280V

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.000V
CH2 : 0.00V

Main : 1K
Zoom : 1K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM

TP201

(EFMMON)

Stopped

CH1=2V

DC 10:1

(500ms/div)

500ms/div

MORM:200MS/s

1994 / 12 / 15 08:57:26

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.000V
CH4 : 0.0V

=Trigger=

Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM

TP201

(EFMMON)

TP210

(TEMON)

TP209

(TOTMON)

Stopped

CH1=2V

DC 10:1

(2ms/div)

2ms/div

CH2=2V

DC 10:1

ENV

CH3=500mV

DC 10:1

1994 / 12 / 15 09:58:45

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM

TP208

(FEMON)

TP210

(TEMON

)

SPDRR

TP601

(VM)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

CH4=2V

DC 10:1

(1s/div)

1s/div

CH2=2V

DC 10:1

ENV

1994 / 12 / 15 08:39:46

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.00V
CH4 : 0.0V

=Trigger=

Mode : AUTO
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM

TP210

(TEMON)

TP663

(SL+)

TP664

(SL-)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

(1s/div)

1s/div

CH2=2V

DC 10:1

NORM:1kS/s

1994 / 12 / 15 21:54:52

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.00V
CH2 : 0.00V

Main : 10K
Zoom : 10K

CH3 : 0.00V
CH4 : 0.00V

=Trigger=

Mode : NORMAL
Type : EDGE CH2
Detay : 0.0ns
Hold OFF : MINIMUM

TP201

(EFMMON)

TP210

(TEMON)

TP102

(T-)

Stopped

CH1=2V

DC 10:1

CH3=1V

DC 10:1

CH4=1V

DC 10:1

(500us/div)

500us/div

CH2=2V

DC 10:1

ENV

For TP208, TP209, and TP210, use the specific LPF, and
observe the waveform.

When watching the EEM monitor (TP201)
Set MSL from 00

to 80

with EEPROM control setting. After

completion restore 00

1994 / 12 / 15 09:10:03

=Filter=

=Offset=

=Record Length=

Smoothiing : OFF
BW : FULL

CH1 : 0.000V
CH2 : 0.00V

Main : 4K
Zoom : 4K

CH3 : 0.000V
CH4 : 0.0V

=Trigger=

Mode : NORMAL
Type : EDGE CH1
Detay : 0.0ns
Hold OFF : MINIMUM

CK108

(HPFO)

IC101

(WBO)

Stopped

CH1=500mV

DC 10:1

(20us/div)

20us/div

CH2=2V

DC 10:1

ENV

0.001

10K

Measurement

Summary of Contents for MD-MT88H

Page 1: ...ARD 32 VOLTAGE 35 WAVEFORMS OF MD CIRCUIT 36 TROUBLESHOOTING 37 FUNCTION TABLE OF IC 40 PARTS GUIDE EXPLODED VIEW PACKING METHOD FOR U K ONLY MD MT88H S MODEL MD MT99H S BL CONTENTS SERVICE MANUAL SHARP CORPORATION No S6138MDMT88HS This document has been published to be used for after sales service only The contents are subject to change without notice In the interests of user safety the set shoul...

Page 2: ... without a compact disc and the Pickup is on a position outer than the lead in position the Laser will light for several seconds to detect a disc Do not look into the Pickup Lens 2 The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping 3 No adjustment to the Laser Power should be attempted when replacing or servicing the Pick...

Page 3: ...ding method Magnetic modulation overwrite method Sampling frequency 44 1 kHz 32 kHz and 48 kHz signals are converted to 44 1 kHz and then recorded Wow and flutter Unmeasurable less than 0 001 W peak Battery life Input sensitivity Output level Stereo 2 times long 4 times long When using the optional re chargeable battery fully charged Continuous recording Approx 7 5 hours Continuous play Approx 13 ...

Page 4: ...d to 44 1 kHz and then recorded Wow and flutter Unmeasurable less than 0 001 W peak Battery life Input sensitivity Output level Stereo 2 times long 4 times long When using the rechargeable battery fully charged included with the unit Continuous recording Approx 7 5 hours Continuous play Approx 13 hours Continuous recording Approx 10 5 hours Continuous play Approx 15 5 hours Continuous recording Ap...

Page 5: ...erent from the one in the drawing For U K For Europe Notes Parts and equipment mentioned in this operation manual other than those detailed above are not included The AC adaptor may be different from the one in the drawing Remote Control x 1 Earphones x 1 Battery Carrying Case x 1 Rechargeable Nickel Metal Hydride Battery AD N70BT x 1 Connection Cable for analogue recording x 1 Connection Cable fo...

Page 6: ...ol unit MD MT99H 1 Earphones Socket 2 Bass Delete Track Mark Button 3 Volume Down Cursor Button 4 Volume Up Cursor Button 5 Hold Switch 6 Play Pause Button 7 Fast Reverse Recording Level Down Name Select Button 8 Fast Forward Recording Level Up Name Select Button 9 Stop Power Off Button Display panel 1 Level Meter 2 Record Indicator 3 Long play Recording Mode Indicator 4 Monaural Mode Indicator 5 ...

Page 7: ...alkaline battery with a new one When the battery has run completely out BATT EMPTY will appear Then the power will be discon nected automatically Notes If you use the battery which you stopped charging halfway may appear It does not mean that the battery is completely charged The battery indicator will not correctly display the remaining capacity for approximately 10 seconds after the power has be...

Page 8: ...sc whilst record ing or editing Turn off the power and remove the Mini Disc NO DISC A disc has not been loaded Number or symbol appears in position ERROR MES SAGES MEANING NO SIGNAL Poor connection of the digital cable No output signal comes out from the connected unit to playback Use the AC power for the connected unit The input signal has improper sam pling frequency NOT PLAY You tried to play b...

Page 9: ...ot increase even if you erase short tracks The total of the recorded time and the remaining time does not match the max imum recordable time One cluster approximately 2 seconds is the minimum unit for re cording For example a 3 second track uses 2 clusters approxi mately 4 seconds Therefore the actual recordable time may be shorter than the displayed time Combine function does not work A MiniDisc ...

Page 10: ...ll socket 1 Plug the AC adaptor into the wall socket 2 Insert the plug on the other end into the DC IN 5V socket For U K For Europe Illustration MD MT88H Preparation for use The unit does not work if the unit is in the hold mode Hold Release CAUTION It is not recommendable to put the MiniDisc into a rear pocket as this may damage the product when sitting Press the HOLD button for 2 seconds or more...

Page 11: ...T will be displayed During any recording or editing func tion the MiniDisc unit lid is locked and the MiniDisc cannot be removed until the process is finalised Warning If the power is removed Battery AC adaptor whilst TOC is displayed the MiniDisc unit lid will remain locked until the battery main power is restored and the unit is turned on Your new record ings or edited changes will be lost and y...

Page 12: ...r do not touch directly the front end of flexible PWB with your hand so as to prevent damage of optical pickup by static electricity C1 x3 ø1 7 x2 5mm C1 x1 ø1 4 x2 5mm B2 x2 C2 x1 C3 x1 C3 x1 C2 x1 Pull Pull Pull Pull Pull Felt Put the fold on the connector and apply with the felt Sagging may result in contact with the sheet metal Main PWB Center Cabinet D1 x1 ø1 4 x1 5mm D1 x1 ø1 4 x1 5mm Mechan...

Page 13: ...se is caused How to remove the sled motor See Fig 13 3 1 Remove the stop washer C1 x 1 pc and remove the drive gear C2 x 1 pc 2 Remove the screws C3 x 2 pcs 3 Remove the solder joints C4 x 2 of flexible PWB and remove the sled motor Note Take care so that the motor gear is not damaged If the gear is damaged noise is caused How to remove the spindle motor See Fig 13 1 1 Remove the solder joints A1 ...

Page 14: ... lines or 384 lines manual jump is performed C1 error rate display pit section ADIP error rate display groove section The temperature correction is performed only when servo start is performed but the posture correction is not performed during continuous playback 4 TEST REC Mode Continuous record from the specified address is performed Change of record laser output servo gain is also changed accor...

Page 15: ...nt item out of range focus ON failure and adjustment error When the PLAY button is pressed while ADJ OK is displayed AUTO2 is executed 2 AUTO2 Mode When the STOP button is pressed while the AUTO2 menu appears or during automatic adjustment the mode changes to the TEST mode stop state At this time the adjustment value is not output Adjustment NG Adjustment item out of range and adjust ment error Wh...

Page 16: ...ored in the memory When the DISP button is pressed while the error data indication menu appears the error data is initialized C L E A R _ Error Code Explanation of error history code 13h Excessive number of retry to draw servo during its adjustment 16h COUT detection time over during servo adjustment 17h The level of input signal from the RF amplifier is out of the allowable range 1Fh Cannot clear...

Page 17: ...1h 20 9o C 23o C 24o C 00h 23 6o C 25o C 27o C 01h 26 3o C 28o C 30o C 02h 29 0o C 31o C 33o C 03h 31 8o C Center temperature Ambient temperature Temperature correction Center temperature 9o C 10o C 08h 0 5o C 3o C 21o C 07h 12 5o C 15o C 33o C 06h 23 6o C 26o C 43o C 05h 35 0o C 2 Temperature reference setting method 1 Measurement calculation and setting procedure 1 Set the TEST mode Set TEST 1 0...

Page 18: ...es Sled setting Item display Set values T M _ _ Calculate values Tracking setting Item display Set values T G 1 _ 2 4 H T B o _ 2 B H T B t _ 1 A H T K o _ 2 B H T K t _ 1 6 H T D o _ 6 7 H T D t _ 3 A H S C t _ 2 A H C L p _ 2 8 H C L r _ 3 2 H J P I _ 0 8 H K 1 0 _ 6 5 H T H P _ 0 2 H T H G _ 0 2 H T 0 P _ 0 0 H T 0 G _ F 2 H T 1 P _ 2 0 H Spindle setting Focus setting F G 1 _ 4 A H F Z H _ E D ...

Page 19: ...menu R S L T 2 Pre manual adjustment menu M A N U 1 ATT manual adjustment menu M A N U 2 Error history display menu E D A T A Test mode normal playback menu N O R M A L Preautomatic Adjustment menu Preadjustment error adjustment value output During preadjustment adjustment Adjustment error Normal end Preadjustment normal end adjustment value output During ATT automatic adjustment PLAY PLAY A U T O...

Page 20: ... address set state the start address changes as follows when the DISP button is pressed 0 0 3 2 H initial value 0 3 C 0 H 0 7 0 0 H 0 8 A 0 H A d 0 0 3 2 A d 0 3 C 0 DISP DISP A d 0 7 0 0 DISP DISP A d 0 8 A 0 In the start address setting state the start address change digit changes when the MODE button is pressed 1st digit initial value 2nd digit 3rd digit A d 0 0 3 2 A d 0 0 3 2 MODE MODE A d 0 ...

Page 21: ...A 0 H A d 0 3 c 0 DISP A d 0 7 0 0 DISP DISP DISP A d 0 8 A 0 In the start address setting state the start address change digit changes when the MODE button is pressed A d 0 0 3 2 1st digit initial value 2nd digit 3rd digit A d 0 0 3 2 MODE A d 0 0 3 2 MODE MODE A d 0 9 5 0 INNER switch position measurement menu Continuous playback pit section Address PLAY I N N E R Inner Switch Position Measureme...

Page 22: ... the specific setting menu is set Error history display menu Error history 0 display Error code Error history 1 display Error code Error history 2 display Error code Error history 3 display Error code Error history 4 display Error code Error history 5 display Error code Error history 6 display Error code Error history 7 display Error code Error history 8 display Error code Error history 9 display ...

Page 23: ... O R FAST FORWARD FAST REVERSE Spin setting menu PLAY S p i n Spin Setting S P G S P i FAST FORWARD FAST REVERSE S P m FAST FORWARD FAST REVERSE S P o FAST FORWARD FAST REVERSE S D 1 FAST FORWARD FAST REVERSE S D 2 FAST FORWARD FAST REVERSE S P K FAST FORWARD FAST REVERSE S P W FAST FORWARD FAST REVERSE S P B FAST FORWARD FAST REVERSE S R i FAST FORWARD FAST REVERSE When the STOP button is pressed...

Page 24: ...AST FORWARD FAST REVERSE A S G FAST FORWARD FAST REVERSE A S M FAST FORWARD FAST REVERSE Tracking setting menu PLAY T r a c k Tracking Setting T G 1 T B o FAST FORWARD FAST REVERSE T B t FAST FORWARD FAST REVERSE T K o FAST FORWARD FAST REVERSE T K t FAST FORWARD FAST REVERSE T D o FAST FORWARD FAST REVERSE T D t FAST FORWARD FAST REVERSE S C t FAST FORWARD FAST REVERSE C L p FAST FORWARD FAST REV...

Page 25: ...set digit is changed Adjustment setting menu PLAY A D J S E T Adjustment Setting C O K F A B FAST FORWARD FAST REVERSE F B O FAST FORWARD FAST REVERSE H S G FAST FORWARD FAST REVERSE L S G FAST FORWARD FAST REVERSE When the STOP button is pressed in specific menu the TEST MODE STOP state is set When the DISP button operation is performed in the specific state the menu changes to TEMP SETTING menu ...

Page 26: ...AST FORWARD FAST REVERSE R C 0 FAST FORWARD FAST REVERSE R C 1 FAST FORWARD FAST REVERSE U S A FAST FORWARD FAST REVERSE U S 2 U S 1 FAST FORWARD FAST REVERSE U S 0 FAST FORWARD FAST REVERSE M S L FAST FORWARD FAST REVERSE S P M FAST FORWARD FAST REVERSE M F P FAST FORWARD FAST REVERSE L 4 H FAST FORWARD FAST REVERSE L 2 H FAST FORWARD FAST REVERSE M C 4 FAST FORWARD FAST REVERSE M C 2 FAST FORWAR...

Page 27: ...ue to servo error 11 Error occurred during manual adjustment 12 Unused 13 Excessive number of retry to draw servo during its adjustment 16 COUT detection time over during servo adjustment 17 The level of input signal from the RF amplifier is out of the allowable range 1F Cannot clear the factor of ENDEC DINT 21 Cannot focus on the disc 22 Cannot start up the spindle 23 Track search time over 32 Ca...

Page 28: ...farad As to electro lytic capacitor the expression capacitance withstand volt age is used CH TH RH UJ Temperature compensation ML Mylar type The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chas sis with no signal given Parts marked with are important for maintaining the safety of the set Be sure to replace these parts with specified on...

Page 29: ...ER LB1971V IC703 AUDIO AMP IR3R59N IC701 AUDIO AMP IR3R54N IC601 PWM DRIVER LV8018W VM IC402 EEPROM 58X2402T VS IC202 IX2735AF 16M BIT D RAM 2 3V OPTICAL IN UNIT J701 OPTICAL IN J701 LINE IN J702 MIC IN READY FOR PLUG IN POWER REGULATOR IC203 62FP1602 EXCLUSIVE OR GATE IC871 TC7S86FU 1 2 21 23 6 5 7 7 30 VCC VG 43 16 18 20 22 39 41 40 17 21 27 44 28 29 40 37 26 29 32 37 39 46 2 5 7 11 14 23 7 9 66...

Page 30: ...APON ADPON FOK SENSE COUT MCCK DINTX RSTX SYSD0 SYSD1 SYSD2 SYSD3 SYSD4 SYSD5 SYSD6 SYSD7 SYWRX SYRDX VBAT WBI TEST1 TEST0 FODRR FODRF TEST2 X176KO TRDRF TRDRR SLDRF SLDRR SPDRF SPDRR TCG AGND AIN FIN EIN BIN DGND VDD1 VDD2 DGND EFMI AVCC DGND AVCC2 RAD0 RAD1 RAWEX RARASX RAA9 DGND VDD2 RAD3 RAD2 RACASX RAOEX RAA8 RAA7 RAA6 RAA5 RAA4 RAA0 RAA1 RAA2 RAA3 TCRS EFMO I O1 I O2 WE RAS A0 A1 A2 A3 VCC C...

Page 31: ... R453 18K R452 8 2K R454 56K CN451 CN482 C482 1 C481 1 R719 6 8K R720 6 8K C734 0 1 R712 6 8K R711 6 8K L710 47 C701 10 6 3 C702 10 6 3 R702 22 C703 0 01 R703 100K R701 100 J701 R725 100 R729 4 7K R730 4 7K J702 C723 0 001 R423 22K 1 C802 0 01 R812 10K 1 R813 10K 1 R284 390K R283 100K R279 100 IC259 HN1C01FU R277 39K C259 0 1 R269 39K 1 C801 1 Q461 2SD1819 AS R462 27K R460 68K C818 0 1 IC809 UMD12...

Page 32: ...TP407 TP418 CK222 CK225 CK224 TP212 TP118 TP171 TP402 TP112 TP406 TP100 TP411 TP408 TP401 TP111 TP441 TP113 TP105 TP107 TP109 TP114 TP101 TP102 TP103 TP104 TP122 TP412 TP110 TP121 CK901 TP106 TP144 TP130 TP132 TP108 TP115 TP133 TP131 TP207 TP201 TP610 TP202 TP500 TP729 TP772 TP200 TP409 TP707 TP665 TP713 TP804 TP410 TP601 TP656 TP211 TP704 TP711 TP708 TP204 TP705 TP712 TP714 TP728 TP726 TP771 TP72...

Page 33: ... R901 C914 IC901 C904 C611 L704 R714 C714 L702 L703 R716 R715 R713 C713 R920 C357 Q711 C651 Q901 L710 C913 C912 C910 R908 R351 IC651 C652 L800 IC351 L801 D801 C351 R803 R813 R812 R802 R806 D802 IC802 R808 R810 Q891 CN601 R814 R815 R816 Q461 R460 C818 IC809 R462 R819 R818 IC251 IC892 R293 Q250D467 R295 R466 CN451 R458 R455 R456 R457 R451 R452 R453 R454 R467 R285 R282 R257 IC258 R294 R286 R281 R283 ...

Page 34: ...T Ass y 222 CN101 TO MAIN PWB P33 8 9 F CN601 TO MAIN PWB SLED MOTOR SPINDLE MOTOR LIFT MOTOR PHOTO INTERRUPTER 15 2 P33 10 11 C CN451 TO MAIN PWB P33 9 10 C CN482 TO MAIN PWB P33 9 10 D MODE CHRG ENTER SYNC DISP VOL BASS EDIT REC OFF HOLD PLAY PUSE M902 M901 M903 PH901 Figure 34 WIRING SIDE OF P W BOARD 3 3 A B C D E F G H 1 2 3 4 5 6 ...

Page 35: ...8 9 10 11 12 13 14 3 1 2 4 3 37 38 40 41 42 43 44 45 46 47 48 39 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 3 1 2 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 3 0V 0V 1 29V 0V 2V 0V 0V 1 6V 0V 1 27V 1 27V 1 27V 1 24V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 2 53V 1 81V 0V 2 42V 1 92V 1 15V 2 34V 0V 2 52V 0V 2 52V 0 48V 0 67V 0 64V 0V 0V ...

Page 36: ... OFF BW FULL CH1 0 000V CH2 0 00V Main 1K Zoom 1K CH3 0 00V CH4 0 00V Trigger Mode AUTO Type EDGE CH1 Detay 0 0ns Hold OFF MINIMUM T TP201 EFMMON Stopped CH1 2V DC 10 1 500ms div 500ms div 1 MORM 200MS s 9 1994 12 15 08 57 26 Filter Offset Record Length Smoothiing OFF BW FULL CH1 0 00V CH2 0 00V Main 10K Zoom 10K CH3 0 000V CH4 0 0V Trigger Mode NORMAL Type EDGE CH1 Detay 0 0ns Hold OFF MINIMUM T ...

Page 37: ...ning tissue and a small amount of lens cleaner on the market Do not touch the lens with the bare hand Is the power supply turned on when the remote control button MD MT99H or main unit button is pressed No Perform the check stated in item Power is not turned on when the PLAY button is pressed Perform the check stated in item Abnormal display No Yes Does the display operate normally Is playback sta...

Page 38: ...ime display advance Yes Position check in INNER mode Check IC201 and IC202 connection line Is the lead in photointerrupter set to OFF when the optical pickup moves to the innermost periphery in NORMAL mode Is TP654 in H level Check the lead in photointerrupter mechanical flex PWB soldering and CN601 connection No Is an attempt to repeat repeatedly the TOC part performed on the low reflection disc ...

Page 39: ...k for soldering failure of IC201 No Check periphery of IC401 and IC101 Check whether there is any damage in IC101 periphery of laser diode Yes Check for defects of IC351 in head drive flexible PWB head flexible PWB No Yes Is audio monitor output given in normal mode LINE IN record Check waveforms of pins 8 10 11 12 of IC501 pins 70 to 73 of IC201 Is waveform obtained on IC501 pins 2 and 3 No Yes C...

Page 40: ...phone plug insertion detection input 34 PC2 _INPGI Input Line digital plug insertion detection 35 PC3 INPGCK Input Line digital plug type detection 36 PC4 RCPCNT Input Output Record circuit power control output 37 PC5 TEST1 Input Test mode setting input 1 38 PC6 TEST0 Input Test mode setting input 0 39 PC7 JPNP Input Kana conversion Kana input existence nonexistence discrimination 40 Vcc VCC Input...

Page 41: ...nput Battery voltage detection input 80 AN1 ANI1 Input Reserve 81 AN2 TEMP Input Ambient temperature detection input 82 AN3 RKEY Input Remote control key operation detection input 83 AN4 HKEY1 Input Unit key operation detection input 1 84 AN5 HKEY2 Input Unit key operation detection input 2 85 AN6 CHGCNT Output Charging current control output 86 DA1 LDVAR Output P U laser power setting output 87 A...

Page 42: ... 2 List of EMPH port settings H H Brake H L Drive UP L H Drive DOWN L L Output OFF LDCNT1 LDCNT0 Details 3 List of LDCNT port settings TEST0 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 1 2 3 4 5 6 7 8 9 10111213141516171819202122232425 75747372717069686766656463626160595857565554535251 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 TOTMON...

Page 43: ...put section that monitors the half of the power supply to the output section It monitors the output power with the digital servo to correct its dependency on the voltage 27 VBATT Power connection terminal in the output section 28 S S START STOP terminal Starting with H and stopping with L 29 GND Signal GND 30 VCC2 Applies the logic signal supply voltage 31 CP1 Switching terminal on the booster cir...

Page 44: ...ta input data output 24 GND Ground 0V IC202 RH iX2735AFZZ 16M Bit D RAM IX2735AF IC601 VHiLV8018W 1 PWM Driver LV8018W In this unit the terminal with asterisk mark is open terminal which is not connected to the outside 1 2 3 4 5 6 7 8 9 10 11 12 35 34 33 32 31 30 29 28 27 26 25 VGOFF 36 IN4R CP4 CP3 CP2 CP1 VCC2 GND S S VBATT VBATT 2MON IN2R LV8018W MUTE IN3 NC NC NC VG VCC1 IN3 NC NC NC MUTE1 47 ...

Page 45: ...rical type without lead wire VC MN Cylindrical type without lead wire VC TV Square type without lead wire VC TQ Square type without lead wire VC CY Square type without lead wire VC CZ Square type without lead wire VC J The 13th character represents capacity difference J 5 K 10 M 20 N 30 C 0 25 pF D 0 5 pF Z 80 20 If there are no indications for the electrolytic capacitors error is 20 Resistors VRD...

Page 46: ... VHPRPI221 1 J AG Photo Interupter RPI221 Supplies at Ref No 15 COILS L100 VPBNN100K0000 J AC 10 µH L171 RCILC0356AFZZ J AC 10 µH L452 RCILC0352AFZZ J AB Tip Impeder 150mA L453 454 RCILC0353AFZZ J AB Tip Solid Induction 100mA L456 RCILC0353AFZZ J AB Tip Solid Induction 100mA L601 604 RCILC0372AFZZ J AC 22 µH Choke L608 RCILC0356AFZZ J AC 10 µH L609 610 RCILC0358AFZZ J AC 47 µH Choke L702 704 RCILC...

Page 47: ... CY1JB563J J AA 56 kohms 1 16W R257 VRS CY1JB273F J AA 27 kohms 1 16W R261 VRS CY1JB102J J AA 1 kohm 1 16W R262 VRS CY1JB124F J AA 120 kohms 1 16W R266 VRS CY1JB473F J AA 47 kohms 1 16W R267 VRS CY1JB103F J AA 10 kohm 1 16W R269 VRS CY1JB393F J AF 39 kohms 1 16W R270 271 VRS CY1JB683F J AA 68 kohms 1 16W R272 VRS CY1JB101J J AA 100 ohm 1 16W R277 VRS CY1JB393J J AA 39 kohms 1 16W R279 VRS CY1JB101...

Page 48: ...ø1 5 ø3 5 0 25mm 509 LX BZ0049AWZZ J AB Screw ø1 4 1 8mm M901 RMOTV0040AWZZ J AW Motor Ass y Spindle M902 RMOTV0511AFZZ J AT Motor Ass y Sled M903 RMOTV0531AFM1 J AQ Motor Ass y Lift CABINET PARTS 201 GCABA1234AWSB J AL Center Cabinet 88H 99H S 201 GCABA1234AWSC J AL Center Cabinet 99H BL 202 GCOVA1389AWSB J AF Battery Cover 88H 99H S 202 GCOVA1389AWSC J AF Battery Cover 99H BL 203 GDORB0004AWSB J...

Page 49: ... Only 19 Battery Not Replacement Item 99H S BL Only 20 TGANE0013AWZZ J Warranty Registration Card P W B ASSEMBLY Not Replacement Item PWB A 92LPWB3742MDS J Main OTHER SERVICE PARTS UDSKM0001AFZZ J AZ Recording Mini Disc 88GMMD 110 J BV High Reflection Disc MMD 110 TEAC Test MD 88GMMD 212 J Low Reflection Disc MMD 212 TEAC Test MD 88GMMD 213A J BT Low Reflection Disc MMD 213A TEAC Test MD 4 ...

Page 50: ...MD MT88H 99H A B C D E F G H 1 2 3 4 5 6 Figure 5 MD MECHANISM EXPLODED VIEW 5 502 509 16 14 9 8 12 17 506 501 15 1 15 2 PH901 503 507 11 M901 M902 M903 15 504 508 3 1 2 5 4 7 10 6 505 13 ...

Page 51: ...MECHANISM MD MT99H MD MT88H MD MT88H MD MT88H ONLY PWB A 207 204 204 206 207 220 201 210 224 215 208 203 216 214 212 213 212 3 212 1 212 2 214 1 214 2 202 601 604 602 604 603 603 603 602 603x2 603x2 601 601 603 603 605 605 603x2 603x2 603 222 211 221 219 219 219 209 223 205 218 ...

Page 52: ...ration Manual 99H 12 TINSE0384AWZZ Quick Guide 88H 12 TINSE0386AWZZ Quick Guide 99H 13 TLABE0570AWZZ Label Bar Code 88H 13 TLABE0571AWZZ Label Bar Code 99H 14 TLABN0088AWZZ Label SER No 15 TLABM0124AWZZ Label POP 16 QCNWG0422AFZZ Optical Cable 99H 17 RRMCW0002AWSA Remote Control 99H 18 UBAGC0003AWZZ Battery Carring Case 99H 19 UBATM0003AWSA Battery 99H 20 TGANE0013AWZZ Warranty Registration card A...

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