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HCD-VX90AV
SERVICE MANUAL
E Model

HCD-VX90AV is the tuner, deck, CD and amplifier section in MHC-VX90AV.

Model Name Using Similar Mechanism HCD-GRX80/RXD8/RXD8S CD SECTION CD Mechanism Type Base Unit Type Optical Pick-up Type TAPE DECK SECTION CDM38L-5BD34L BU-5BD34L KSS-213D/Q-NP

Model Name Using Similar Mechanism HCD-GRX80/RXD8/RXD8S Tape Transport Mechanism Type TCM-230AWR2/230PWR2

SPECIFICATIONS

-- Continued on next page --

COMPACT DISC DECK RECEIVER
MICROFILM

­1­

CAUTION

Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of soldering iron around 270°C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1. This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.
SAFETY-RELATED COMPONENT WARNING !! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

MODEL IDENTIFICATION -- BACK PANEL --

Parts No.

PARTS No. 4-215-642-1 4-215-642-3 4-215-642-4 4-215-642-5

MODEL EA, MY, SP model IA model E model TH model

· Abbreviation SP : Singapore model MY : Malaysia model IA : Indonesia model TH : Thai model EA : Saudi arabia model

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TABLE OF CONTENTS 1. SERVICING NOTE .......................................................... 4 2. GENERAL .......................................................................... 7 3. DISASSEMBLY
3-1. 3-2. 3-3. 3-4. 3-5. Loading Panel ....................................................................... 9 Front Panel ............................................................................ 9 Cassette Lid and Tape Mechanism ...................................... 10 CD SW Board and Panel Board .......................................... 10 Disc Tray ............................................................................. 11

8. EXPLODED VIEWS
8-1. 8-2. 8-3. 8-4. 8-5. 8-6. 8-7. 8-8. Case Section ........................................................................ 92 Chassis Section ................................................................... 93 Front Panel Section ............................................................. 94 CD Mechanism Deck Section-1 (CDM38L-5BD34L) ....... 95 CD Mechanism Deck Section-2 (CDM38L-5BD34L) ....... 96 Base Unit Section (BU-5BD34L) ....................................... 97 TC Mechanism Section-1 (TCM230AWR2/230PWR2) .... 98 TC Mechanism Section-2 (TCM230AWR2/230PWR2) .... 99

9. ELECTRICAL PARTS LIST .............................. 100

4. TEST MODE ..................................................................... 12 5. MECHANICAL ADJUSTMENTS .......................... 13 6. ELECTRICAL ADJUSTMENTS ............................... 13 7. DIAGRAMS
7-1. Circuit Boards Location ...................................................... 18 7-2. Block Diagrams · CD Section ....................................................................... 19 · Video Section ................................................................... 21 · Deck Section .................................................................... 23 · Main Section .................................................................... 25 · Power Section .................................................................. 27 · Display Section ................................................................ 29 7-3. Printed Wiring Board ­ BD Section ­ ................................. 33 7-4. Schematic Diagram ­ BD Section ­ ................................... 35 7-5. Schematic Diagram ­ Deck Section ­ ................................ 37 7-6. Printed Wiring Board ­ Deck Section ­ .............................. 39 7-7. Printed Wiring Board ­ Video Section ­ ............................. 41 7-8. Schematic Diagram ­ Video (1/3) Section ­ ....................... 43 7-9. Schematic Diagram ­ Video (2/3) Section ­ ....................... 45 7-10. Schematic Diagram ­ Video (3/3) Section ­ .................... 47 7-11. Printed Wiring Board ­ Main Section ­ ........................... 49 7-12. Schematic Diagram ­ Main (1/4) Section ­ ..................... 51 7-13. Schematic Diagram ­ Main (2/4) Section ­ ..................... 53 7-14. Schematic Diagram ­ Main (3/4) Section ­ ..................... 55 7-15. Schematic Diagram ­ Main (4/4) Section ­ ..................... 57 7-16. Printed Wiring Board ­ Leaf SW Section ­ ..................... 59 7-17. Schematic Diagram ­ Leaf SW Section ­ ........................ 59 7-18. Printed Wiring Board ­ Panel Section ­ ........................... 61 7-19. Schematic Diagram ­ Panel (1/2) Section ­ ..................... 63 7-20. Schematic Diagram ­ Panel (2/2) Section ­ ..................... 65 7-21. Schematic Diagram ­ Surround Section ­ ....................... 67 7-22. Printed Wiring Board ­ Surround Section ­ ..................... 68 7-23. Schematic Diagram ­ Front Amp Section ­ ..................... 69 7-24. Printed Wiring Board ­ Front Amp Section ­ .................. 71 7-25. Schematic Diagram ­ CD Motor Section ­ ...................... 73 7-26. Printed Wiring Board ­ CD Motor Section ­ ................... 75 7-27. Schematic Diagram ­ Trans Section ­ ............................. 77 7-28. Printed Wiring Board ­ Trans Section ­ ........................... 78 7-29. IC Block Diagrams ........................................................... 79 7-30. IC Pin Functions ............................................................... 82

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. LASER DIODE AND FOCUS SEARCH OPERATION CHECK Carry out the "S curve check" in "CD section adjustment" and check that the S curve waveform is output four times.

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SECTION 1 SERVICING NOTE
HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF
1 Remove the Case.

3 Pull-out the disc tray.

2 Turn the cam to the direction of arrow.

Note for Installation (ROTARY ENCODER)

BU cam

Note:When attaching the Base unit, Insert the section A into the groove of BU cam.

Section A Groove

Note:When attaching the BU cam, engage the Rotary encoder switch as shown in the figure.

CD-TEXT This unit is provided with a simple CD-TEXT display function. The CD-TEXT contents of 20 tracks are displayed on the fluorescent display tube. Since the function is simple, some special characters may not be displayed, or may be displayed as other characters.

­4­

MC Cold Reset · The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer. Procedure: 1. Press three buttons p , ENTER/NEXT , and 1/u simultaneously. 2. "COLD RESET" is displayed on the fluorescent display tube and reset is executed. CD Delivery Mode · This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair. Procedure: 1. Press 1/u button to turn the set ON. 2. Press CD LOOP button and 1/u button simultaneously. 3. A message "LOCK" is displayed on the fluorescent indicator tube, and the CD delivery mode is set. MC Hot Reset · This mode resets the set with the preset data kept stored in the memory. The hot reset mode functions same as if the power cord is plugged in and out. Procedure: 1. Press three buttons p , ENTER/NEXT , and DISC 1 simultaneously. 2. The fluorescent indicator tube becomes blank instantaneously, and the set is reset. Sled Servo Mode · This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the optical pick-up. Procedure: 1. Press 1/u button to turn the set ON. 2. Press three buttons p , ENTER/NEXT , and § simultaneously. 3. The Sled Servo mode is selected, if "CD" is blanking on the fluorescent indicator tube. 4. With the CD in stop status, When the ) + button is pressed, the optical pick-up moves outside. When ­ 0 button is pressed, it moves inside. 5. To exit from this mode, perform as follows: 1) Move the optical pick-up to the most inside track. 2) Execute MC cold reset. (Press the three buttons p , ENTER/NEXT , and 1/u button simultaneously.) Note: · Always move the optical pick-up to most inside track when exiting from this mode. Otherwise, a disc will not be unloaded. · Do not run the sled motor excessively, otherwise the gear can be chipped. Change-over of AM Tuner Step between 9kHz and 10kHz · A step of AM channels can be changed over between 9kHz and 10kHz. Procedure: 1. Press 1/u button to turn the set ON. 2. Select the function "TUNER", and press TUNER/BAND button to select the BAND "AM". 3. Press 1/u button to turn the set OFF. 4. Press ENTER/NEXT and 1/u buttons simultaneously, and the display of fluorescent indicator tube changes to "AM 9k STEP" or "AM 10k STEP", and thus the channel step is changed over. LED and Fluorescent Indicator Tube All Lit, Key Check Mode Procedure: 1. Press three buttons p , ENTER/NEXT , and DISC 2 simultaneously. 2. LEDs and fluorescent indicator tube are all turned on. Press DISC 2 button, and the key check mode is activated. 3. In the key check mode, the fluorescent indicator tube displays "K 0 V0 J0". Each time a button is pressed, "K"value increases. However, once a button is pressed, it is no longer taken into account. "J" Value increases like 1, 2, 3 ... if rotating 0 AMS ) knob in "+" direction, or it decreases like 0, 9, 8 ... if rotating in "-" direction. "V" Value increases like 1, 2, 3 ... if rotating VOLUME knob in "+" direction, or it decreases like 0, 9, 8 ... if rotating in "-" direction. 4. To exit from this mode, press three buttons in the same manner as step 1, or disconnect the power cord.

­5­

AMS Test Mode · This mode is used for checking the AMS operations of the tape deck. JIG 7-819-039-12 Alignment tape, AMS-110A Procedure: 1. Press the 1/u button to turn the unit ON. 2. Set the tape (AMS-110A). 3. Press the three buttons p , ENTER/NEXT , and DISC 3 button simultaneously. 4. "TEST MODE" is displayed on the fluorescent display tube. 5. Press the FUNCTION button and switch the function to the deck with the tape (AMS-110A). 6. Press the CD SYNC button. "AMS CHECK" is displayed on the fluorescent display tube and the tape is rewound. 7. AMS starts in the normal direction. If the AMS count is 2 at shut down, proceed to step 8. "NG" is displayed at other times, and the deck stops. 8. AMS starts in the opposite direction. If the AMS count is 2 at shut down again, "OK" is displayed. "NG" is displayed at other times. Note: The p button of CD section will become effective and the aging of CD section will stop sometime, if the buttons described in step 3 are not pressed simultaneously. In that case, press ^ button and operate the CD section. SELF-DIAGNOSIS This model has the self-diagnosis function for the VIDEO and AUDIO decoder sections. Immediately after the power on, the self-diagnosis function searches each operation of IC's around the mechanism control microcomputer (IC701). The results can be checked by D502 of the VIDEO board. Oscilloscope (Waveform)
H

Symptom

[VIDEO BOARD] (SIDE A)
D502

No error
L Light
1 100 91 90

H L 2 time blinking

IC505

MPEG decoder (IC505) error

32 33 64

65

H L 3 time blinking

MPEG decoder (IC505) or DRAM (IC507) error

­6­

SECTION 2 GENERAL
Front Panel

1

2

3

4

5

6

7

64 63 8 62 9 61 60 59 58 57 56 55 12 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 15 14 13 2019 18 17 16 22 21 23 24 38 37 35 34 36 25 10 11

26 27 28 29 30 33 32 31
44 PLAY MODE/DOLBY NR button 45 EDIT DIRECTION/TUNER MEMORY button 46 ECHO LEVEL knob 47 P FILE MEMORY button 48 GEQ CONTROL button 49 FILE SELECT button 50 EFFECT button 51 NEXT button 52 PREV button 53 RETURN button 54 SELECT button 55 ( (TAPE B) button and indicator 56 9 (TAPE B) button and indicator 57 ( (TAPE A) button and indicator 58 9 (TAPE A) button and indicator 59 FUNCTION button 60 SYNC EQ indicator 61 Remote sensor 62 EFFECT indicator 63 Display Window 64 Disc tray

LOCATION OF PARTS AND CONTROLS
1/u button and indicator DEMO (STANDBY) button DISC 1 button and indicator DISC 2 button and indicator DISC 3 button and indicator DISC SKIP/EX­CHANGE button § (Eject) button SYNC BASS H indicator VIDEO CD indicator PBC indicator PBC OFF indicator SYNC BASS L indicator TUNER/BAND button ^ (CD) button and indicator p button SYNC BASS button SYNC EQ button KARAOKE PON/MPX button NON-STOP button and indicator REC PAUSE/START button and indicator 21 CINEMA SPACE/DSP button and indicator 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

DBFB button HI-DUB button CD SYNC button PHONES jack VOLUME knob ENTER/NEXT button ) + button and indicator PRO LOGIC button and indicator JOG/0x) dial and indicator GROOVE button and indicator 0 ­ button and indicator DUB 5.1 CH button CD FLASH button CD LOOP button MIC 2 jack TIMER SELECT button and indicator CLOCK/TIME SET button MIC 1 jack SPECTRUM ANALYZER button DISPLAY button MIC LEVEL knob REPEAT/STEREO/MONO button

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This section is extracted from instruction manual.

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SECTION 3 DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.

3-1. LOADING PANEL

Claws

3 Loading panel assembly

2 Pull-out the disc tray.

1 Turn the cam to the direction of arrow.

3-2. FRONT PANEL

! Video board !¢ Screw (BVTP 3x8) !TM Flat type wire (CN503) 9 Flat type wire (CN303) 2 Screw (BVTT 3x6) 8 Flat type wire (CN304) !¡ Flat type wire (CN501)

!£ Two screws (BVTP 3x8)

Lead wires

6 Screw (BVTP 3x10)

Lead wire
0 Front panel 5 Screw (BVTP3x10) 1 Screw (BVTT 3x6) 7 Flat type wire (CN501) 4 Screw (BVTT 3x6) 3 Screw (BVTT 3x6)

­9­

3-3. CASSETTE LID AND TAPE MECHANISM
9 Tape mechanism

8 Three screws (BVTP2.6x8)

7 Two screws (BVTP2.6x8)

6 Tension spring

4 Cassette holder (L) assembly

Note for installation Portion B

2 Release 3 Cassette holder (R) assembly

Portion B Portion A
5 Tension spring 1 Release

Portion A

3-4. CD SW BOARD AND PANEL BOARD

3 CD SW board

1 Three screws (BVTP2.6x8)

2 Three screws (BVTP2.6x8)

8 Flat type wire (CN601)

9 Four screws (BVTP2.6x8)

4 Knob (Jog) 6 Nut

0 Six screws (BVTP2.6x8) 7 Nut 5 Knob (Vol) !TM Panel board !¡ Four screws (BVTP2.6x8)

­ 10 ­

3-5. DISC TRAY

(Perform after removing the front panel.)

Note:When installing the Disc tray, pull around the flat type wire to pass through the claw A and claw B, as shown in the figure.

3 Flat type wire (8 core)

4 Two claws

2 Pull-out the disc tray. 5 Remove the disc tray.

Claw B Claw A

1 Turn the cam the direction of arrow.

­ 11 ­

SECTION 4 TEST MODE
VIDEO CD COLOR-BARS MODE
On this mode, the data of the color-bars signal as a picture signal and the 1kHz sine wave signal as a sound signal are output by the mechanism control microcomputer (IC502) for video CD signal check. When measurement of the voltage and waveform on the VIDEO board, perform it in this mode. For reference, the color-bars signal can be observed at J302 (VIDEO OUT) and the sound signal can be observed at J101 (VIDEO/MD (AUDIO) OUT) using an oscilloscope. 1. Connect the lead wire to both ends of the land of SL503 of the VIDEO board. 2. Turn the power on. Press FUNCTION button to select CD. 3. After 2 or 3 seconds later, connect the lead wire. 4. After measuring, remove the lead wire connected. [VIDEO BOARD] (SIDE A)

D502 SL501 SL502 SL503 TEST MODE

IC505

CT503 VIDEO FREQUENCY IC507

[VIDEO BOARD] (SIDE B)

TEST MODE

SL503 SL502 SL501

IC502

­ 12 ­

SECTION 5 MECHANICAL ADJUSTMENTS
Precaution 1. Clean the following parts with a denatured alcohol-moistened swab: record/playback heads pinch rollers erase head rubber belts capstan idlers 2. Demagnetize the record/playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, apply suitable locking compound to the parts adjusted. 5. The adjustments should be performed with the rated power supply voltage unless otherwise noted. Torque Measurement
Mode FWD FWD back tension REV REV back tension FF/REW FWD tension REV tension Torque meter CQ-102C CQ-102C CQ-102RC CQ-102RC CQ-201B CQ-403A CQ-403R Meter reading 31 to 71 g · cm (0.43 ­ 0.98 oz · inch) 2 to 6 g · cm (0.02 ­ 0.08 oz · inch) 31 to 71 g · cm (0.43 ­ 0.98 oz · inch) 2 to 6 g · cm (0.02 ­ 0.08 oz · inch) 71 to 143 g · cm (0.98 ­ 1.99 oz · inch) 100 g or more (3.53 oz or more) 100 g or more (3.53 oz or more)

SECTION 6 ELECTRICAL ADJUSTMENTS
DECK SECTION 0 dB=0.775V

1. Demagnetize the record/playback head with a head damagnetizer. 2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the parts adjusted. 4. The adjustments should be performed with the rated power supply voltage unless otherwise noted. 5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.) 6. The adjustments should be performed for both L-CH and R-CH. 7. Switches and controls should be set as follows unless otherwise specified.
Tape P-4-A100 WS-48B P-4-L300 Signal 10 kHz, ­10 dB 3 kHz, 0 dB 315 Hz, 0 dB Used for Azimuth Adjustment Tape Speed Adjustment Level Adjustment

Record/Playback Head Azimuth Adjustment (Deck A, Deck B) Note: Perform this adjustments for both decks. Procedure: 1. Mode : Playback
test tape P-4-A100 (10kHz, ­10dB)

MD OUT

level meter

set

+ ­

2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1 dB of peak.

L-CH peak

output level

within 1 dB

within 1dB

screw position

R-CH peak screw position

L-CH peak

R-CH peak

­ 13 ­

3. Mode: Playback
test tape P-4-A100 (10kHz, ­10dB) oscilloscope MD OUT set

Tape Speed Adjustment (Deck B) Note: Set the test mode using the following method and begin tape speed adjustment. In the test mode, the speed will switch to double speed or normal speed each time the HI DUB button is pressed. Procedure: With the power turned ON, press the p button, ENTER/NEXT button, and DISC 3 button simultaneously. (The "CD TYPE INDICATOR" on the fluorescent display tube will blink while in the test mode.) To exit the test mode, press the 1/u button.
Waveform of oscilloscope

in phase

45° good

90°

135°

180° wrong

1. 2. 3. 4.

4. After the adjustments, apply suitable locking compound to the parts adjusted. Adjustment Location: Playback Head (Deck A) Record/Playback/Erase Head (Deck B)

Insert the WS-48B into deck B. Press the ( button of deck B. Press the HI DUB button and play the tape at double speed. Adjust RV1001 of the LEAF SW board so that the reading of the frequency counter becomes 6000 ± 180 Hz. 5. Press the HI DUB button and play the tape at normal speed. 6. Adjust RV1002 of the LEAF SW board so that the reading of the frequency counter becomes 3000 ± 90 Hz. Adjustment Location: LEAF SW board Sample Value of Wow and flutter W.RMS (JIS) less than 0.3% (test tape: WS-48B) Playback Level Adjustment (Deck A, Deck B) Procedure: Mode: Playback
test tape P-4-L300 (315Hz, 0dB) set level meter

Reverse

Foward

MD OUT

Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within the following adjustment level. Adjustment level: CN301 playback level: 301.5 to 338.3 mV (­8.2 to ­7.2 dB) level difference between the channels: within ± 0.5 dB Adjustment Location: AUDIO board

Adjustment Location [LEAF SW BOARD]
RV1001(High Speed) RV1002(Normal Speed)

RV1002

RV1001

­ 14 ­

Record Bias Adjustment (Deck B) Procedure: INTRODUCTION When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the "REC memory mode" which rewinds only the recorded portion and playback is set. This "REC memory mode" is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO. (After recording, press the ­ 0 button without stopping will return to the position where recording was started.) 1. Press FUNCTION button to select VIDEO. (This step is not necessary if the above test mode has already been set.) 2. Insert a tape into deck B, press the r REC button, and then press the ( button to start recording. 3. Mode: Record
VIDEO (AUDIO) IN 1) 315 Hz } 50 mV (­23.8 dB) 2) 10 kHz AF OSC 600 attenuator set blank tape CS-123

Record Level Adjustment (Deck B) Procedure: INTRODUCTION When set to the test mode performed in Tape Speed Adjustment, when the tape is rewound after recording, the "REC memory mode" which rewinds only the recorded portion and playback is set. This "REC memory mode" is convenient for performing this adjustment. During recording, the input signal FUNCTION will automatically switch to VIDEO. (After recording, press the ­ 0 button without stopping will return to the position where recording was started.) 1. Press FUNCTION button to select VIDEO 1. (This step is not necessary if the above test mode has already been set.) 2. Insert a tape into deck B, press the r REC button, and then press the ( button to start recording. 3. Mode: Record
VIDEO (AUDIO) IN 315Hz 50 mV (­23.8 dB) AF OSC 600 attenuator set blank tape CS-123

4. Mode: Playback
recorded position level meter

4. Mode: Playback
recorded position level meter

set MD OUT

set MD OUT

5. Confirm playback the signal recorded in step 2 become adjustment level as follows. If these levels do not adjustment level, adjust the RV341 (L-CH) and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4. Adjustment level: The playback output of 10 kHz level difference against 315 Hz reference should be ± 1.0 dB. Adjustment Location: AUDIO board

5. Confirm playback the signal recorded in step 2 become adjustment level as follows. If these levels do not adjustment level, adjust the RV301 (L-CH) and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4. Adjustment level: CN403 playback level: 47.2 to 53.0 mV (­24.3 to ­23.3 dB) Adjustment Location: MAIN board [MAIN BOARD] (Conductor Side)
Record Level (L CH) RV301

Adjustment Location: [AUDIO BOARD] (Conductor Side)

RV341(Lch),RV441(Rch) Record Bias

RV311(Lch),RV411(Rch) Playback Level (Deck A)
CN303

43 42 29 56 28 IC301 1 14 15 RV351 Record Level (R CH)

RV301 RV401 RV441 RV341 RV311 RV411

RV301(Lch),RV401(Rch) Playback Level (Deck B)

­ 15 ­

CD SECTION
Note: 1. CD Block is basically constructed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10M impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. S Curve Check
oscilloscope BD board

Note: Clear RF signal waveform means that the shape "" can be clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV TIME/DIV : 500ns level : 1.75 ± 0.25 Vp-p

E-F Balance (Traverse) Check
oscilloscope BD board

TP (FE) TP (VC)

+ ­

TP (TE) TP (VC)

+ ­

Adjustment Location: BD board Procedure : 1. Connect the oscilloscope to test points TP (FE) and TP (VC). 2. Connect TP (FEI) and GND, and TP (AGCCON) and GND of the BD board with lead wires. 3. Press the 1/u button to turn the set ON. 4. With the disc (YEDS-18) loaded, press the ^ button and perform focus search. (Focus search will be performed in the same way even while the disc table is pushed in and out.) 5. Check the symmetry and peak to peak level of the oscilloscope waveform (S curve) at this time.
S-curve waveform
symmetry

Adjustment Location: BD board Procedure : 1. Connect oscilloscpe to test point TP (TE) on BD board. 2. Short-circuit SL502 of the video board to GND. 3. Turned Power switch on. Press FUNCTION button to select CD. 4. Put disc (YEDS-18) in to play the number five track. 5. Press the PLAY MODE/DOLBY NR button. (The tracking servo and the sledding servo are turned OFF.) 6. Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than ± 22%
Traverse waveform A Within 4.0 ± 1.0 Vp-p B 0V B A (DC voltage) Center of the waveform

6. After check, remove the lead wire connected in step 2. Note: · Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. · Take sweep time as long as possible and light up the brightness to obtain best waveform. Adjustment Location: BD board RF Level Check
oscilloscope BD board TP (RF) TP (VC) + ­

level : 1.3 ± 0.6 Vp-p

7. Press the PLAY MODE/DOLBY NR button. (The tracking servo and sledding servo are turned ON.) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 7.
Traverse waveform

0V

C (DC voltage)

Procedure : 1. Connect oscilloscope to test point TP (RF) and TP (VC) on BD board. 2. Connect TP (AGCCON) and GND of the BD board with lead wires. 3. Press the 1/u button to turn the set ON. 4. Put disc (YEDS-18) in and playback 5track. 5. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. 6. After check, remove the lead wire connected in step 2.

Tracking servo Sled servo OFF

Tracking servo Sled servo ON

8. Desolder the short-land (SL502) short-circuited at step 2. Adjustment Location: BD board

­ 16 ­

Adjustment Location : [ BD BOARD ] -- SIDE B --

TP (RF) TP (VC)

TP (AGCCON)

TP (FE)

TP (TE)

TP (IOP)

VIDEO SECTION
Frequency adjustment 1. Connect the frequency counter to check point of the VIDEO board. 2. Adjust CT503 of the VIDEO board so that the frequency counter read 27MHz ± 80Hz at STOP condition. Adjustment Location : [ VIDEO BOARD ] ­ SIDE A ­
D502 SL501 SL502 SL503 TEST MODE
frequency counter VIDEO board (27 MHz)

+ ­

[ VIDEO BOARD ] ­ SIDE B ­

(27MHz) IC506 (GND)

IC505

(27MHz) CT503 VIDEO FREQUENCY (GND)

SL503 TEST SL502 MODE SL501

IC502

IC507

­ 17 ­

SECTION 7 DIAGRAMS
7-1. CIRCUIT BOARDS LOCATION

VIDEO board

CD SW board

TUNER unit PANEL board

TRANS board

MAIN board

TUNER unit is supplied as the assembled block.

MOTOR (TURN) board CONNECTOR board BD board

SENSOR board

MOTOR (SLIDE) board

3CH AMP board LEAF SW board

FRONT AMP board AUDIO board

­ 18 ­

HCD-VX90AV

7-2. BLOCK DIAGRAMS ­ CD SECTION ­
IC421 OPTICAL PICK-UP BLOCK (KSS-213D/Q-Np) DETECTOR VCC E A A B C D C D B F FOCUS ERROR AMP FE 14 INTEGRATOR ASYI ASYO 48 E F E F TRACKING ERROR AMP LD 3 TE 13 ASYMMETRY CORRECTION DIGITAL PLL VC 5 7 8 6 A C D B RF SUMMING AMP RFD RF EQ AMP 16 50 RF AC EFM DEMODULATOR IC103 RF AMP IC101 DIGITAL SERVO DIGITAL SIGNAL PRCESSOR 32K RAM ERROR CORRECTOR DIGITAL OUT MD2 CD DIGITAL OUT OPTICAL 1 DOUT

63

D+5V

D OUT

64

DATA BUS

PCM-D 66 BCLK D/A INTERFACE 67 65 14 3 LRCK C2PO MUTE ADATA BCLK LRCK C2PO MUTE

REGISTER

RFI 17

SUB CODE PROCESSOR 49

11 10 LD DRIVE Q101

DIGITAL CLV IC104 71 4 XTSL SENS 69 7

LD LASER DIODE PD PD APC LD AMP LD ON REF 21 IC102 FOCUS/TRACKING COIL DRIVE SPINDLE/SLED MOTOR DRIVE T+ TRACKING COIL 12 5 6 F+ FOCUS COIL 14 2 3 FFDR FRDR 33 34 SFDR 29 SRDR 30 FFDR FRDR TFDR TRDR 31 32 TFDR TRDR PWM GENERATOR TRACKING PWM GENERATOR FOCUS PWM GENERATOR SLED PWM GENERATOR INTEGRATOR VC BUFFER 12 VC VC 22 43 39 41 VC 42 40 RFDC FE TE CE SE OP AMP A/D ANALOG SW CONVERTER MIRR DFCT FOK DETECTOR 38 CONTROL SIGNAL BLOCK SERVO BLOCK

CLOCK GENERATOR

XTAI

2

(XTAL 33.8MHz) MCK

CTRL1 SENS

A
VIDEO SECTION

4 LD POWER

DATA SERVO AUTO SEQUENCER XLAT CPU INTERFACE CLOK SCOR SQSO SQCK

4 5 6 15 76 77

DATA XLT CLK SCOR SUBQ SQCK

(Page 21)

T

11

S STOP SERVO DSP TRACKING SERVO SERVO INTERFACE SCLK

26 S101 LIMIT SW 8

A+5V

SCLK LPH

F

13

SD+ M102 SLED MOTOR M101 SPINDLE MOTOR M SD SP+ M SP

FOCUS SERVO

XRST

82

XRST LD ON

17 24 23

SFDR SRDR

18 15

SLED SERVO · SIGNAL PATH

16

25 27 VC

25

MDP

: CD : VIDEO

MUTE 20

XRST TURN MOTOR DRIVER IC701 M701 TURN MOTOR TABLE SENSOR IC702 IN1 3 IN2 6 DISC SENSOR IC703 ROTARY ENCODER S811 S801 OPEN/CLOSE DET

T. SENS

M

7 OUT1 2 OUT2

DISC SENS Q701 ENC 1 ENC 2 ENC 3 OPEN TBL.L TBL.R LOAD IN LOAD OUT

SLIDE MOTOR DRIVER IC801 M801 SLIDE MOTOR
09

C
MAIN SECTION

M

4 OUT2 7 OUT1

RIN 2 FIN 10

(Page 22, 25)

­ 19 ­

­ 20 ­

HCD-VX90AV

­ VIDEO SECTION ­
D-RAM IC507 WE RAS UCAS LCAS DQ16 ROM IC506

DQ1

A11

A17

A10 58 - 44 MA0 I MA10

O0

O7

A0

A0

A8

13 14 28 29

16 - 19 22 - 26

2 - 10

31 - 39

13 - 15 17 - 21

25 4 28 29 3 2 14 10

12 - 5 27 26 23 22

38 42 MWE RASO

40 CAS

10 - 29 MD0 I MD15

37 MCE

LEVEL SHIFT IC501 BUFFER Q301 TRAP Q302,306,307

CE

OUTPUT AMP IC401 4 10 8 4 3 5 CD-DATA CD-BCK CD-LRCK Y-OUT 69 J302 MIX AMP Q308,310 5 7 MUTE Q454 VIDEO OUT J301 3 1 MUTE Q453 4 2 1 3 S VIDEO OUT

ADATA BCLK LRCK

1 13 5

C2P0

6

CD-C2P0 VIDEO/CD DECODER IC505

DATAI DATAO CLK1 HRDY INT HSEL RST INVERTER Q502

112 HD-OUT 119 HD-IN 117 HCK 113 HRDY 114 HINT 121 HSEL 60 RESET 93 PGIO2/VSYNC/CSYNC

C-OUT 75

BUFFER Q303,304

DA-LRCK DA-BCK VCK-IN DA-XCLK

DA-DATA 110 108 111 106 86

27MHz DIGITAL FILTER & D/A CONVERTER IC509

AMP IC101 14 3 R-CH 1 L - CH XRST

18 19 17 CLK1, DATA0 DATA0 CLK1 MECHA. CONTROL IC502

D/A CONV

PLM 11

C
MAIN SECTION

A
CD SECTION

9 8 7

MODE

CLOCK DIVIDER

1 24

X503 27MHz CT503 VIDEO FREQUENCY

(Page 20, 25)

10 RSTB DATA0 DATAI CLK1 INT HSEL HRDY RESET 31 32 33 20 21 23 24 DATA1O DATA1I CLK1 CL680 INT CL680 HSEL CL680 HRDY 680 RESET

21 20 4

(Page 20)
SHARPNESS DF LATCH A7 XIN XOUT 45 DATA XLT CLK SENS SCLK MUTE CTRL1 LDON SCOR SUBQ SQCK 3 4 5 1 2 BUS DSP DATA DSP LATCH DSP CLK SENSE SENSE CLK NT/PAL 34 22 65 15 13 93 +5V TEST LED 73 D502 X501 10MHz S501 SYSTEM SELECT

LEVEL SHIFT IC504 3 11 1 27MHz 6 384FS 8 12 768FS

NTSC AUTO PAL

10 DSP MUTE 11 CTRL1(L:DOUBLE) 27 CTRL2 28 LDON 18 SCOR 36 SUBQ DATA 37 SUBQ CLK 77 DEVICE RESET

P.ON XRESET

38 12

I2C. CLK I2C. DATA

F
MAIN SECTION

(Page 26)
D5V 3.3V REG Q531 +3.3V

I2C.CLK I2C.DATA

29 30

XRST 09 MCK

(XTAL 33.8MHz)

· R CH: Same as L ch · SIGNAL PATH : CD : CHROMA :Y : VIDEO

­ 21 ­

­ 22 ­

HCD-VX90AV

­ DECK SECTION ­

PB A/B S1004 A CrO2 S1008 B CrO2 MS OUT

RV311 IC611 L HP101 PB HEAD (DECK A) PLAYBACK LEVEL DECK A A IN 48 B IN 46 R CH

16 PB-A/B 70 120

17 A 120/70

19 B 120/70 PAS DOL DOLBY NR

28 27 MS

26

MAIN SECTION

PB OUT

40

PB L LM ON/OFF

R

LM ON/ 25 OFF NORM/ HIGH 18 NR ON/ OFF 23 24 PB

RV301 IC601 L REC/PB HEAD (DECK B) R R CH 36 EQOUT EQIN 38 PLAYBACK LEVEL DECK B

DOLBY NR IC301

NORM/HIGH NR ON/OFF REC/PB/PASS

RV301 REC LEVEL 39 RECOUT DOLBY TYPE B

RIN BIAS ON/OFF

44

REC L BIAS ON/OFF RM ON/OFF ALC ON/OFF

BIAS SW
M

3 P HRPE101

1

IC602 R 4 REC/PB RV341 REC BIAS

C

20 RM ON/OFF 22 ALC ON/OFF 15

32 33 RELAY CAP MOTOR CONTROL Q336-343 M1 CAPSTAN MOTOR SPEED CONTROL Q1001 SWITCH Q335 CAPM CNT1 CAPM CNT2

+7.5V Q623

M

CAP M H / L

REC BIAS ERASE BIAS ERASE HEAD X

BIAS OSC T621, Q621, 622 RV1002 NORMAL SPEED RV1001 HIGH SPEED

B
MAIN SECTION

REEL DETECT IC1001

(Page 25)
A SHUT

REEL DETECT IC1002 S1001 (A PLAY)

B SHUT

· R CH : Same as L ch · SIGNAL PATH : PB (DECK A) : PB (DECK B) : REC (DECK B)

+5V S1002 (B PLAY)

A PLAY B PLAY

S1003 (A HALF) +5V

A HALF +5V

S1005 (REC A) 09 S1006 (B HALF) B HALF/REC A/REC B

S1009 (REC B)

· PLUNGER SOLENOID is supplied as the MECHANICAL BLOCK ASSY. A DECK/ B DECK PLUNGER

MAIN SECTION TRIGGER MOTOR CONTROL Q331-334 B TRIG A TRIG

­ 23 ­

­ 24 ­

HCD-VX90AV

­ MAIN SECTION ­
IC712(1/2) 1

IC711 ECHO PROCESSOR I2C DATA 2 LPF 1 IN J711 MIC 1 J712 MIC 2 LPF 2 OUT 9 I2C CLK SPE SIG 6 RV712 MIC LEVEL 68 69 64 66 67 65 V MD DVD TC TU CD IC712(2/2) 2 30 L+R EQ AMP SELECT SWITCH R-CH IC101(1/2) EQ DOUT2 59 42 Lch IC101(2/2) VOLUME 38 39 58 57 Q111 74 77 79 76 1 11 15 5 80 10 16 4 TRIM TRIM TRIM VOL VOL VOL 3 CENTER IN 17 9 SW REAR L-IN MUTE Q114 CENTER IN J191 SUPER WOOFER 37 72 7 41 36 Lch WAKE UP STANDBY LED IIC DATA IIC CLK TIMER LED RESET

F
VIDEO SECTION

(Page 22)

J101 VIDEO/IN (AUDIO) L MD IN L

E
DISPLAY SECTION

(Page 29)

MD/VIDEO (AUDIO) OUT L

60 KEY IN2 MICON INTERFACE 34 33 32 1 J102 2 3

FRONT L IN FRONT L-OUT REAR IN

FRONT REAR DVD SW CENTER 23 24 25 100 91 90 89 88 87 86 84 83 82 81 80 79 PL-CLK PL-DATA PL-LAT TC RELAY A SHUT B SHUT B HALF A HALF A PLAY SW B PLAY SW PB A/B EQ H//N BIAS REC MUTE NR ON/OFF R/PB PASS IC201 SOUND PROCESSOR MCU INTERFACE DATA SCK REQ 22 23 24 MUTE Q191 MUTE Q281, 282 DBFB SWITCH Q112,113

B
DECK SECTION

PB L REC L RELAY A SHUT B SHUT B HALF/REC A/REC B A HALF A PLAY B PLAY PB A / B NORM/HIGH BIAS ON/OFF RM ON/OFF NR ON/OFF REC/PB PASS CAPM CNT1 CAPM CNT2 ALC ON/OFF LM ON/OFF CAP M H/L A TRG B TRG MS OUT ST L

BASS FRQ. 44 DBFB H/L 7 LINE MUTE 6 F RELAY 3 WAKE UP 18 ST-BY LED/CLOCK OUT 39 IIC DATA 30 IIC CLK 29 TIMER LED 26 RESET 12 RESET SWITCH Q501 AC CUT 22 (CHECK) MUTE SW Q502

MUTE SW Q503 FRONT RELAY

(Page 24)

75 CAPM CNT1 74 CAPM CNT2 85 78 76 73 72 77 38 47 48 ALC TC MUTE CAP M H/L A TRG B TRG AMS IN 493-LAT 493-DATA 493-CLK IC501 MASTER CONTROL

D
POWER SECTION

(Page 27)

1 2 3

3 RESET IC502 1 D503 +5.6V (STBY)

FM/AM TUNER TUNER UNIT IS SUPPLED AS THE ASSEMBLED BLOCK

ST-DOUT ST-DIN STEREO TUNED ST CE ST-MUTE ST-CLK L CH TBL. L TBL. R SCOR TRAY SENS HOLD SENS X RST CD DATA DISC SENS X LAT OUT-OPEN ENC-1 ENC-2 ENC-3 LD IN LD OUT

54 ST DIN 50 STEREO 51 TUNED 52 ST CE 49 ST MUTE 53 ST DOUT 55 ST CLK 63 65 19 61 57 56 59 35 60 58 71 70 69 68 67 66 TBL L TBL R SCOR T SENS HOLD SENS XRST CD DATA DISC SENS XLT OUT OPEN ENC1 ENC2/DISC-LED ENC3/UP-SW LOAD IN LOAD OUT

X-OUT 13 X-IN 15

X613 16MHz

· R CH: Same as L ch · SIGNAL PATH : FM : CD : PB : REC : VIDEO/MD

XC-IN 10 XC-OUT 11

X601 32.768KHz

C
CD SECTION

RY-SW 36 POWER 2 CD POWER 5 STK MUTE 1 HP-MUTE 93 PROTECTOR 27

RY-SW POWER ON/OFF CD POWER STK MUTE HP MUTE SPEAKER PROTECT IN

(Page 20, 22)

09

­ 25 ­

­ 26 ­

HCD-VX90AV

­ POWER SECTION ­
RY-SW IC801 FRONT L-IN 20 21 16 2CH 15 Lch OVER LOAD DET Q801 RELAY DRIVE Q881 RY881

TM801 FRONT L-ch +VH Rch R-ch J701 PHONES

­VH

­VH SUPP Q831 +VH BUFF Q821 +VH

Rch

SWITCH Q882 Lch Q421 Q411 MUTE Rch RY-SW

STK MUTE Q822 MUTE FRONT RELAY AC DET SPEAKER PROTECT IN PROLOGIC RELAY PROTECT OUT Q825, 826 IC1001 (1/2) PROTECT SW Q828 ­ 830 Rch PROTECT Q832, 827

FAN DET

FAN MOTOR SWITCH Q431, 432

­12V

TM802 REAR L-IN 12 13 6 1CH 8 OVER LOAD DET Q1001 OVER LOAD DETECT THERMAL DET Q1023, 1024 IC1001 (2/2) SWITCH Q884 Rch REAR L OUT RELAY DRIVE Q883 RY882

SURROUND REAR L-ch

+VH

Rch

REAR R-ch CENTER

7

D
MAIN SECTION

CENTER-IN

18 17

3CH 20 CCC 14 OVER LOAD DET Q1001

CENTER OUT RELAY DRIVE Q885

RY883

+VH

(Page 26)
+VL

+VL BUFF Q1021 Q1022 MUTE

­VL

SWITCH Q886

VREF

RECTIFIER D502 +5.6V (STBY)

JW909 +VH CD D+5V (SW) RDS D+5V UN SW +5V (LED) (DISPLAY) RECTIFIER D918 +5V OUT Q915 3 IC905 1 +5V/REG ­VH +VL Q916 ­VL RECT D881 RECT D883

T951 POWER TRANSFORMER AC1 AC2 AC2 AC1

+5V (STBY) (DISPLAY)

D509

D+5V UNREG CDM D+5V SW SWITCH Q907 +5V OUT Q906 A+7V 3 IC901 1 REG AC DET RECTIFIER D931, 932 AC3

+7V REG Q901,902,903

POWER ON/OFF CD A+5V (SW)

SWITCH Q904, 905 +5V REG Q908 A­7V Q909 +10V OUT Q910 IC904 1 12V REG CD MOTOR +7V TC MOTOR +12V A+10V +10V REG Q913 3 IC903 1 +12V REG 3 IC902 1 +7V REG ­7V REG Q951,952,953

RECT D901-904

AC3

VOLTAGE SELECTOR S951

ST A+10V CD POWER

3

AC4 RECT D908-911 AC4 AC IN

SWITCH Q914 09

­ 27 ­

­ 28 ­

HCD-VX90AV

­ DISPLAY SECTION ­

IC604 1
|

L/P SCK LED LA L/P DAT IIC DATA IIC CLK 78 I2C DATA 79 I2C CLK

3 4 5

13 15

LED SWITCH

5 · 7 · 10 · 11 · 17 · 19
|

Q601,602 PANEL LED +5V (LED)

23 LED CONTROL Q603 REMOTE CONTROL RECEIVER IC602

L SEL

7

RESET

73 RESET

DISPLAY CONTROL IC601

SIRCS S LOW (F01) BPF1 (F02) BPF2 BPF3 BPF4 ALL B (L+R) JOG A JOG B KEY 0

1 16 17 18 19 20 21 2 8 11 14

S601 (JOG) ROTARY ENCODER

X601 12.5MHz

72 XOUT KEY 3 70 XIN

KEY MATRIX

WAKE UP

22 WAKE UP 9 10

VOL A VOL B

ROTARY ENCODER S602 VOLUME

E
MAIN SECTION

SEG1-SEG22 46 - 67

GR2-GR12 33 - 40, 42 - 44

GR1, GR13-GR18 27 - 32, 45

(Page 26)
VF

IND BUFF Q607-613

FL601 FLUORESCENT INDICATOR TUBE

VF

SPEANA BPF FILTER IC603 F01 F02 F04 F05 F06 L+R S LOW 17 BPF1 16 BPF2 14 BPF3 13 BPF4 12 ALLB 11

SPE SIG

4 LINE IN 6 REC IN

STANDBY LED D804 ECO

TIMER LED

LED SWITCH Q605 D635 TIMER SELECT

+5V (STBY)

09

­ 29 ­

­ 30 ­

HCD-VX90AV

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For schematic diagrams.
Note: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. ¢ · : internal component. · 2 : nonflammable resistor. · 1 : fusible resistor. · C : panel designation. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. · · · · · U : B+ Line. V : B­ Line. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. Circled numbers refer to waveforms. Signal path. F : FM g : VIDEO/MD E : PB (DECK A) d : PB (DECK B) G : REC (DECK B) m : CHROMA n :Y o : VIDEO J : CD c : digital out Abbreviation EA : Saudi Arabia model. SP : Singapore model. MY : Malaysia model. HK : Hong Kong model. TW : Taiwan model. IA : Indonesian model. TH : Thai model.

WAVEFORMS ­ CD SECTION ­ 1

­ VIDEO SECTION ­ 1
4Vp-p

­ MAIN (3/4) SECTION ­ 7
4.6Vp-p

1
5.2Vp-p

1.3Vp-p
10MHz

44.1kHz

32.768kHz

IC502 !£ XOUT IC101 %º RFAC

IC509 !ª LRCK

IC501 !¡ XC-OUT

2
2.5V

8
1Vp-p

2
4.8Vp-p
5.5Vp-p

2
2.11MHz
16MHz

H
APPROX 500mVp-p

IC505 & COUT

IC509 !¶ BCLK

IC501 !£ X-OUT

IC101 $¡ TE

3
2.5V APPROX 200mVp-p

3
2Vp-p

9
4.8Vp-p

­ PANEL (2/3) SECTION ­ 1
3.4Vp-p

H

33.8MHz

IC505 ^ª YOUT IC101 #ª FE

IC504 8 384FS

4
2.6Vp-p

4
1Vp-p

0
12.5MHz
3.8Vp-p

IC601 &TM X OUT

·

H
7.5µsec

27MHz

IC401 7 COUT

IC504 6 27M

IC101 @ MDP

· ·

5
2Vp-p


2.8Vp-p

H

33.8MHz

IC401 1 YOUT

IC504 !TM

6
5.8Vp-p 27MHz

·

IC509 1 XT1

For printed wiring boards.
Note: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. · p : parts mounted on the conductor side. ® · : Through hole. · b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Side B) Parts face side: (Side A)

Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.

· Indication of transistor
C Q B E These are omitted

BC E These are omitted

­ 31 ­

­ 32 ­

HCD-VX90AV

7-3. PRINTED WIRING BOARD ­ BD SECTION ­ · See page 18 for Circuit Boards Location.

(Page 42)

­ 33 ­

­ 34 ­

HCD-VX90AV

7-4. SCHEMATIC DIAGRAM ­ BD SECTION ­ · See page 31 for Waveforms. · See page 79 for IC Block Diagrams. · See page 82 for IC Pin Functions.

(Page 43)

­ 35 ­

­ 36 ­

HCD-VX90AV

7-5. SCHEMATIC DIAGRAM ­ DECK SECTION ­ · See page 79 for IC Block Diagrams.

B

(Page 53)

­ 37 ­

­ 38 ­

HCD-VX90AV

7-6. PRINTED WIRING BOARD ­ DECK SECTION ­ · See page 18 for Circuit Boards Location.

A

B

C

1

2

3

4

5

6 (Page 49)

7

8

9

10

11

12

­ 39 ­

­ 40 ­

HCD-VX90AV

7-7. PRINTED WIRING BOARD ­ VIDEO SECTION ­ · See page 18 for Circuit Boards Location.

(Page 50)

(Page 34)

· Semiconductor Location
Ref. No. D301 D501 D502 IC101 IC401 IC504 IC505 IC507 IC509 Q301 Q304 Q306 Q307 Q308 Q310 Q502 Location E-1 D-3 A-3 A-1 E-3 A-1 C-2 C-1 B-1 E-1 D-3 E-1 E-2 E-2 E-2 D-3

· Semiconductor Location
Ref. No. IC501 IC502 IC506 Q302 Q303 Q453 Q454 Q531 Location C-2 B-1 C-3 E-3 D-1 E-2 E-2 D-1

­ 41 ­

­ 42 ­

HCD-VX90AV

7-8. SCHEMATIC DIAGRAM ­ VIDEO (1/3) SECTION ­ · See page 32 for Waveforms. · See page 84 for IC Pin Functions.

(Page 47) 12

(Page 35)

(Page 53)

(Page 45)

(Page 45)

(Page 47)

­ 43 ­

­ 44 ­

HCD-VX90AV
7-9. SCHEMATIC DIAGRAM ­ VIDEO (2/3) SECTION ­ · See page 32 for Waveforms. · See page 41 for Printed Wiring Board. · See page 86 for IC Pin Functions.

(Page 43)

(Page 43)

12

(Page 47)

(Page 47)

­ 45 ­

­ 46 ­

HCD-VX90AV
7-10. SCHEMATIC DIAGRAM ­ VIDEO (3/3) SECTION ­ · See page 32 for Waveforms. · See page 41 for Printed Wiring Board. · See page 80 for IC Block Diagrams.

(Page 44)

(Page 44)

(Page 46)

12 (Page 46)

­ 47 ­

­ 48 ­

HCD-VX90AV

7-11. PRINTED WIRING BOARD ­ MAIN SECTION ­ · See page 18 for Circuit Boards Location.
· Semiconductor Location
Ref. No. D141 D371 D372 D373 D374 D501 D502 D503 D504 D505 D506 D507 D508 D509 D510 D512 D901 D902 D903 D904 D905 D906 D908 D909 D910 D911 D912 D914 D915 D916 D918 D931 D932 IC101 IC201 IC301 IC421 IC501 IC502 IC901 IC902 IC903 IC904 Q111 Q112 Location I-9 B-2 B-2 B-3 B-3 E-5 E-5 E-5 E-5 E-5 D-4 C-5 E-4 G-1 H-2 D-6 I-6 I-6 J-6 I-6 G-6 F-6 I-5 I-5 I-5 I-5 G-3 I-8 H-8 G-8 H-8 I-6 I-6 C-10 G-10 D-3 A-13 C-5 E-5 H-8 G-4 H-4 F-4 E-10 E-9 Ref. No. Q113 Q114 Q161 Q162 Q163 Q164 Q191 Q281 Q282 Q291 Q371 Q372 Q373 Q374 Q375 Q376 Q377 Q378 Q379 Q380 Q381 Q382 Q383 Q411 Q421 Q431 Q432 Q461 Q501 Q502 Q503 Q901 Q902 Q903 Q904 Q905 Q906 Q907 Q909 Q910 Q913 Q914 Q915 Q916 Q951 Q952 Q953 Location E-10 D-11 C-9 C-9 D-9 E-11 F-12 F-9 F-10 F-9 A-3 A-3 A-4 B-4 B-3 B-3 B-2 B-3 B-4 B-3 B-2 B-3 B-3 I-2 H-2 I-12 I-12 I-2 D-5 E-5 E-6 G-6 F-7 G-6 G-7 G-7 G-8 G-8 G-7 G-3 G-4 H-4 H-8 G-7 G-5 G-5 F-5

(Page 75) (Page 75)

(Page 42)

(Page 59, 60)

JW423

(Page 39)

R128

JW422

D508

(Page 61)

R917

IC905 D913 C921 D917 C922

(Page 78)
C924

R911

JW434

JW433

JW432

(Page 71)

(Page 71)

(Page 68)

­ 49 ­

­ 50 ­

JW431

HCD-VX90AV

7-12. SCHEMATIC DIAGRAM ­ MAIN (1/4) SECTION ­

(Page 69)

(Page 67)

(Page 58)

(Page 53)

(Page 54)

(Page 56)

(Page 56)

­ 51 ­

­ 52 ­

HCD-VX90AV
7-13. SCHEMATIC DIAGRAM ­ MAIN (2/4) SECTION ­ · See page 49 for Printed Wiring Board.

(Page 51)

(Page 52)

(Page 56)

(Page 43)

(Page 74)

(Page 74)

(Page 55)

(Page 38) (Page 60)

­ 53 ­

­ 54 ­

HCD-VX90AV
7-14. SCHEMATIC DIAGRAM ­ MAIN (3/4) SECTION ­ · See page 32 for Waveforms. · See page 49 for Printed Wiring Board. · See page 89 for IC Pin Functions.

(Page 54)

(Page 54)

(Page 52)

(Page 52)

(Page 57)

(Page 58)

­ 55 ­

­ 56 ­

HCD-VX90AV
7-15. SCHEMATIC DIAGRAM ­ MAIN (4/4) SECTION ­ · See page 49 for Printed Wiring Board.

(Page 55)

(Page 56)

(Page 52)

(Page 64)

(Page 77)

(Page 69)

­ 57 ­

­ 58 ­

HCD-VX90AV
7-16. PRINTED WIRING BOARD ­ LEAF SW SECTION ­ · See page 18 for Circuit Boards Location.

7-17. SCHEMATIC DIAGRAM ­ LEAF SW SECTION ­

(Page 49)

H
(Page 54)

­ 59 ­

­ 60 ­

HCD-VX90AV
7-18. PRINTED WIRING BOARD ­ PANEL SECTION ­ · See page 18 for Circuit Boards Location.
· Semiconductor Location
Ref. No. D610 D611 D612 D613 D614 D615 D616 D617 D618 D619 D620 D621 D622 D623 D624 D625 D626 D627 D628 D629 D630 D631 D632 D710 IC601 IC602 IC603 IC604 IC711 IC712 Q601 Q602 Q603 Q604 Q605 Q606 Q607 Q608 Q609 Q610 Q611 Q612 Q613 Location C-2 D-1 C-2 C-5 C-6 C-7 C-9 B-1 B-1 B-2 A-2 B-9 A-9 A-1 D-4 E-2 F-4 E-7 E-4 D-5 E-7 E-4 F-8 C-9 B-5 B-10 B-7 C-3 C-9 F-8 C-2 C-1 C-1 A-2 A-2 B-3 A-9 A-9 A-9 B-9 B-9 B-8 B-8

(Page 49)

VIDEO CD

D623 R692

PBC

D618 R687

PBC OFF

D617 R686 C721 C725 C724 C722 R718 R717 R715 D710 R710 R719 C718

C711 R712 R711 C712 C714

C715

NEXT S635 S634

RETURN S633

SELECT S632

C716

C738 RV711
ECHO LEVEL P REV

CIMEMA SPACE/DSP

R713 C713 R727

R768 C745 R769 C744

J712
MIC 2

MIC 1

­ 61 ­

­ 62 ­

HCD-VX90AV

7-19. SCHEMATIC DIAGRAM ­ PANEL (1/2) SECTION ­ · See page 81 for IC Block Diagrams.

(Page 57)

(Page 66)

(Page 66)

­ 63 ­

­ 64 ­

HCD-VX90AV

7-20. SCHEMATIC DIAGRAM ­ PANEL (2/2) SECTION ­ · See page 32 for Waveforms. · See page 61 for Printed Wiring Board. · See page 80 for IC Block Diagrams. · See page 91 for IC Pin Functions.

(Page 63)

(Page 64)

­ 65 ­

­ 66 ­

HCD-VX90AV

7-21. SCHEMATIC DIAGRAM ­ SURROUND SECTION ­

7-22. PRINTED WIRING BOARD ­ SURROND SECTION ­ · See page 18 for Circuit Boards Location.

(Page 71)

(Page 50)

(Page 52) (Page 70)

· Semiconductor Location
Ref. No. D1001 D1021 D1051 D1081 IC1001 Q1001 Q1021 Q1022 Q1023 Q1024 Q1051 Q1081 Location A-3 A-2 A-3 A-4 C-2 A-2 B-1 A-1 C-1 C-1 B-3 B-4

­ 67 ­

­ 68 ­

HCD-VX90AV

7-23. SCHEMATIC DIAGRAM ­ FRONT AMP SECTION ­

(Page 57) (Page 77)

(Page 52)

(Page 68)

­ 69 ­

­ 70 ­

HCD-VX90AV

7-24. PRINTED WIRING BOARD ­ FRONT AMP SECTION ­ · See page 18 for Circuit Boards Location.

(Page 49)

(Page 50)
· Semiconductor Location
Ref. No. D801 D802 D821 D831 D851 D852 D871 D881 D882 D883 D884 D885 IC801 Q801 Q821 Q822 Q825 Q826 Q827 Q828 Q829 Q830 Q831 Q851 Q881 Q882 Q883 Q884 Q885 Q886 Location E-6 C-4 E-3 C-5 E-6 C-4 B-7 F-2 G-2 A-8 B-8 G-8 E-6 C-4 D-5 E-5 G-3 H-3 H-3 I-2 I-3 I-3 C-5 D-4 B-7 A-6 B-6 A-6 F-8 A-6

(Page 68) (Page 78)

­ 71 ­

­ 72 ­

HCD-VX90AV

7-25. SCHEMATIC DIAGRAM ­ CD MOTOR SECTION ­

G
1SS119

(Page 53)
MTZJ-T-72-5.6C (M) 1SS119

(Page 53)
MTZJ-T-72-3.6C (M)

­ 73 ­

­ 74 ­

HCD-VX90AV

7-26. PRINTED WIRING BOARD ­ CD MOTOR SECTION ­ · See page XX for Circuit Boards Location.

(Page 49)

(Page 49)

­ 75 ­

­ 76 ­

HCD-VX90AV

7-27. SCHEMATIC DIAGRAM ­ TRANS SECTION ­

7-28. PRINTED WIRING BOARD ­ TRANS SECTION ­ · See page 18 for Circuit Boards Location.

(Page 71)

(Page 49)

(Page 70)

(Page 57)

­ 77 ­

­ 78 ­

7-29. IC BLOCK DIAGRAMS
· BD Board IC101 CXD3008Q
DVSS2 XTSL EMPH BCK PCMD EXCK EXCK SCSY SQCK SQSO XOLT SOCK SOUT XTA0 XTA1

80 79 78 77 76 75 74 73

72 71 70 69 68 67 66 65 LRCK DIGITAL OUT D/A INTERFACE 64 DOUT 63 MD2 62 ASYE 61 CLOCK GENERATOR 60 VPC0 59 V16M 58 57 BIAS 56 DVDD2 55 54 53 52 PCO FIL1 FIL0 CLTV

VDD 1 XRST 2 MUTE 3 DATA XLAT CLOK SENS SCLK ATSK WFCK XUGF XPCK GFS C2P0 SCOR 4 5 6 7 8 9 10 11 12 13 14 15

CPU INTERFACE

ERROR CORRECTOR

SERVO AUTO SEQUENCER

EFM DEMODURATOR 32K RAM DIGITAL PLL

SERVO INTERFACE C4M 16 WDCK 17 DVSS 18

SUB CODE PROCESSOR ASYMMETY CORRECTOR MIRR DFCT FOK PWM GENERATOR FOCUS PWM GENERATOR TRACKING PWM GENERATOR SLED PWM GENERATOR DIGITAL PLL SERVO DSP FOCUS SERVO TRACKING SERVO SLED SERVO OP AMP A/D CONVERTER ANALOG SW

51 AVSS1 50 RFAC 49 ASY1 48 ASY0 47 AVDD 46 45 44 43 42 41 1GEN AVSS0 AD10 RFDC CE TE

COUT 19 MIRR 20 DFCT 21 FDK 22 PWM1 23 LOCK 24 MDP 25

26 27

28

29 30 31 32 33 34

35 36 37

38 39 40

SFDR SRDR

DVDD1

TFDR TRDR FFDR FRDR

SSTP FST0

DVSS1

· AUDIO Board IC602 UPC1330HA

INVERTER

COMPARATOR

1

2

3

4

5

6

7

8

SW R1

GND

GND

GND

SW R2

SW P1

CONT

SW P2

VCC

TES1 TES1

9

­ 79 ­

VC FE SE

· BD Board IC103 CXA2568M-T6
APC PD AMP VCC VEE HOLD 1 VEE AGCVTH 2 LD 3 VC PD 4 VCC VREF APC LD AMP 21 HOLD_SW 20 AGCCONT (50%/30% OFF) 19 RF_BOT VC VCC 24 VCC 23 LC/PD 22 LD_ON

· VIDEO Board (3/3) IC509 PCM1727E-2/T2
384fs XT1 1 CLOCK MANAGER · DUAL PLL 24 XT2

PGND 2 VCP 3

POWER SUPPLY

NCKO 4 RSV 5 SCKO3 6 ML MC MC RSTB 7 8 9 10

23 22 21 20

DGND VDD SCKO1 SCKO2

19 LRCK AUDIO DATA INPUT INTERFACE MODE CONTROL 18 DATA 17 BCK

A B C D VEE

5 6 7 8 9 VEE VC VC VC VEE RF SUMMING AMP VC

RF_EQ_AMP VC

18 RFTC 17 RF_1 16 RFO 15 RFE

ERROR AMP FOCUS 14 FE

8 TIME OVER SAMPLING DIGITAL FILTER · FUNCTION CONTROL

OPEN

16 ZERO

15 CAP

14 VOUTL BPZ CONTROL MULTI LEVEL MODULATOR MULTI LEVEL MODULATOR

F 10 E 11 13 TE VC VCC VEE VC VC TRACKING ERROR AMP

5 LEVEL DAC CR LPF · OUTPUT AMP

5 LEVEL DAC CR LPF · OUTPUT AMP 13 VCA

VC VC BUFFER VC 12

VOUTR 11

AGND 12

· PANEL Board (2/2) IC603 BA3830F
R02 1 REFFERENCE CURRENT

RESET

18 RESET

P01 2

REFFERENCE CURRENT DET DET

17 f01

LINE 3 NF

BPF BPF

16 f02

LINE 4 IN

15 f03 BPF BPF BPF DET DET DET 13 f05 BPF DET DET 12 f06 14 f04

REC 5 NF

REC 6 IN

RESET 7 C

BIAS 8 C

Bias

11 REC LEVEL

GND1 9

10 VCC

­ 80 ­

· PANEL Board (1/2) IC604 NJU3716M-T2
DATA 13 12 SO 11 P16 10 P15 CLK 14 9 P14 8 P13 7 P12 6 GND 5 P11
SHIFT REGISTER

· MOTOR (TURN) Board IC701 M54641L
VCC 1 REG POWER AMP. CONTROL IN2 6 INPUT AMP. POWER AMP. 7 OUT1 VCC 8 5 REFERENCE 2 OUT2

IN1 3

INPUT AMP.

4
LATCH

P10 P9 P8

3 2

4 GND

1 P7

· MOTOR (SLIDE) Board IC801 BA6286N
GND RIN VREF OUT2 RNF GND OUT1 VM VCC FIN 1 2 3 4 5 6 7 8 9 10 PO WER SAVE

TSD

CONTROL LOGIC

STB 15 CLR 16

CONTROL

17 18 19
P1 GND P2

20
P3

21
P4

22
P5

23
P6

24
VDD

IC711 M65850FP
LPF2OUT
8 LPF2 20KBIT SRAM 7

OP2OUT
10 D/A MO MI 6

14

13

12

11

OSCILLATOR 1/2 VCC CLOCK AUTO RESET RESET DO1 MAIN CONTROL D1 DO0 A/D LPF1 1 2 3 4 5

LPF1IN

OP1IN

LPF2IN
9

CLOCK

OP2IN

VCC

REF

LPF1OUT

OP1OUT

GND

CC1

CC2

­ 81 ­

7-30. IC PIN FUNCTIONS
· IC101 DIGITAL SIGNAL PROCESSOR (CXD3008Q) (BD Board) Pin No. 1 2 3 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 37 38 39 40 Pin Name DVDD0 XRST MUTE DATA XLAT CLOK SENS SCLK ATSK WFCK XUGF XPCK GFS C2P0 SCOR CM4 WDCK DVSS COUT MIRR DFCT FOK PWM1 LOCK MDP SSTP FST0 DVDD1 SFDR SRDR TFDR TRDR FFDR FRDR DVSS1 TEST TES1 VC FE SE I/O -- I I I I I O I I/O O O O O O O O O -- O O O O I I/O O I O -- O O O O O O -- I I I I I Function Digital power supply System reset Muting selection pin Serial data input, supplied from CPU Latch input, supplied from CPU Serial data transfer clock input, supplied from CPU SENS output SENS serial data read-out clock Input pin for anti-shock (Ground) WFCK (Write Frame Clock) output (Not used) XUGF output (Not used) XPCK output (Not used) GFS output (Not used) C2PO output Sub-code sync output 4.2336MHz output (Not used) 48-bit slot D/A interface word clock (Not used) Digital ground Numbers of track counted signal output (Not used) Mirror signal output (Not used) Defect signal output (Not used) Focus OK output (Not used) (Not used) GFS in sampled by 460Hz (Not used) Output to control spindle motor servo Input signal to detect disc inner most trak 2/3 divider output (Not used) Digital power supply Sled drive output Tracking drive output Focus drive output Digital ground TEST pin connected normally ground Center voltage input FOCUS error signal input Sled error signal input

­ 82 ­

Pin No. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80

Pin Name TE CE RFDC ADI0 AVSS0 IGEN AVDD ASYO ASYI RFAC AVSS1 CLTV FILO FILI PCO AVDD1 BIAS VCTL V16M VPCO DVDD2 ASYE MD2 DOUT LRCK PCMD BCLK EMPH XTSL DVSS2 XTAI XTAO SOUT SOCK XOCT SQSO SQCK SCSY SBSO EXCR

I/O I I I O -- I -- O I I -- I O I O -- I I I/O O -- I I O O O O O I -- I O O O O O I I O I

Function Tracking error signal input Center servo analog input RF signal input Test pin (Not used) Analog ground Power supply pin operational amplifiers Analog power supply EFM full swing output Asymmetry comparate voltage input EFM signal input Analog ground Control voltage input for master VCO Filter output for master PLL Filter input for master PLL Charge-pump output for master PLL Analog power supply Asymmetry circuit constant current input Control voltage input for variable pitch PLL 16.9344MHz output (Not used) Charge-pump output for variable pitch PLL (Not used) Digital power supply Asymmetry circuit ON/OFF Digital-out ON/OFF control Digital-out output 48-bit slot D/A interface, LR clock output 48-bit slot D/A interface, Serial deta output 48-bit slot D/A interface, bit clock output Playback disc output in emphasis mode (Not used) X'tal selection input pin Digital ground X'tal oscillator circuit input X'tal oscillator circuit output (Not used) (Not used) Sub-Q serial output Clock input for SQSO read-out Sub-code input Sub-P through Sub-W serial output (Not used) Clock input for SBSO read-out

­ 83 ­

· IC502 MPEG DECODER, MECHANISM CONTROL (M30620MC-A05FP) (VIDEO Board (1/3)) Pin No. 1 2 3 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 37 38 39 40 41 42, 43 44 45 Pin Name SENSE SENSE CLK DSP DATA DSP LATCH DSP CLK TSENS REMOTE IN BYTE VSS DSP MUTE CTRL1 (L : DOUBLE) XRESET XOUT VSS XIN VCC NMI SCOR D SENS CL680 INT CL680 HSEL DF LATCH CL680 HRDY 680 RESET JOG1 JOG2 CTRL2 LD ON IIC1 IIC0 DATA1O DATA1I CLK1 SHARPNESS XVLEVEL. DOWN SUBQ DATA SUBQ CLK P. ON BUS XRDY BUS BUS XHOLD BUS BUS XRD BUS I/O I O O O O I I I ­ O O I O ­ I ­ I I I I O O I O I I O O I/O I/O O I O O O I I I I I I I I I Function Internal state (SENSE) monitor input (IC101) Serial data reading clock output (IC101) Serial data output (IC101) Lach output (IC101) Serial data clock output (IC101) Not used Not used External bus width change input (Connected to ground) Ground Mute output (IC101) "H" : mute Double change output (IC101) "L" : double System reset input "L" : reset Main clock output (10MHz) Ground Main clock input (10MHz) +5V power supply Requests mask disable interruption input (Connected to +5V) Subcode sync input (IC101) Not used Video CD interruption input (IC505) Video CD select data of the host MPU (IC505) Digital filter latch output (IC509) Ready signal input for communication to the host MPU (IC505) Video CD reset output (IC505) "L" : reset Not used Not used Double control output (IC101) "H" : double Laser diode ON/OFF output IIC clock input from master control IIC data input from master control Serial 1 data output (IC505, 509) Serial 1 data input (IC505, 509) Serial 1 clock output Sharpness output L : normal, H : sharpness Fix the video signal output level output Serial 2 data input for subcode sync reading Serial 2 clock input for subcode sync reading Not used Not used Not used Not used Not used Model selection input "L" : chinese model, "H" : except chinese model V sync signal input

­ 84 ­

Pin No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 to 71 72 73 74 75 76 77 78 79 80 81 to 88 89 90 91 92 93 94 95 96 97 98 99 100

Pin Name BUS XWRL LO. BOOST AUDIO MUTE LOAD OUT LOAD IN INSW OUTSW MODEL 1 MODEL 2 TBLL TBLR ENC 1 ENC 2 ENC 3 -- -- VCC -- VSS A7 A6 to A1 U to I TEST LED TEST 1 TEST 2 TEST 3 DEVICE RESET STANDBY FL CS FL D7 to D0 MIC CTRL KEY 1 KEY 2 KEY 3 NY/PAL MUSIC VOL KEY 4 AVSS MODE. SW VREF AVCC AMP. ON

I/O I I O I I I I I I I I I I I I I ­ I ­ O I I O I I I O I I I I I I I I I I I ­ I I ­ I

Function Not used Not used Audio mute output "L" : mute Not used Not used Not used Not used L : System input (Fixed at "L") L : System input (Fixed at "L") Not used Not used Not used Not used Not used Not used Not used +5V power supply Not used Ground Video mute output "L" Not used IIC convertion microcomputor transmittion input TEST LED for MPEG decoder Test mode for Video CD check Test mode for servo check Not used Device system rest output "L" : reset Not used Not used Not used Not used Not used Not used Not used Not used NTSC/PAL select switch input Not used Not used A/D converter ground Not used A/D converter reference voltage input (Connected to +5V) A/D converter +5V power supply Not used

­ 85 ­

· IC505 CD DECODER, SYSTEM CONTROL (CL680T-D1) (VIDEO Board (2/3)) Pin No. 1 2 3 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 37 38 39 40 41 42 43 44 45 Pin Name NC VSS CD-BCK CD-DATA CD-LRCK CD-C2PO NC NC NC MD0 MD1 MD2 MD3 MD4 MD5 VSS MD6 VDD3 MD7 VSS MD8 VDD3 MD9 MD10 MD11 MD12 MD13 MD14 MD15 NC NC NC NC NC NC NC MCE MWE VSS CAS VDD3 RAS0 RAS1 MA10 MA9 I/O ­ ­ I I I I ­ ­ ­ I/O I/O I/O I/O I/O I/O ­ I/O ­ I/O ­ I/O ­ I/O I/O I/O I/O I/O I/O I/O ­ ­ ­ ­ ­ ­ ­ O O ­ O ­ O ­ O O Function Not used Ground CD Decode bit clock CD Decode data CD Decode Left or Right channel selection clock CD Decode C2 error data Not used Not used Not used Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Ground Data bus between Microcode ROM/DRAM and CL680 +3.3V Power supply Data bus between Microcode ROM/DRAM and CL680 Ground Data bus between Microcode ROM/DRAM and CL680 +3.3V Power supply Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Data bus between Microcode ROM/DRAM and CL680 Not used Not used Not used Not used Not used Not used Not used Chip enable signal to Microcode ROM Write enable signal to DRAM Ground Column address strove : Latch the column address to DRAM +3.3V power supply Row address strove : Latch row address to DRAM Not used Address data from CL680 to Microcode ROM Address data from CL680 to Microcode ROM

­ 86 ­

Pin No. 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90

Pin Name MA8 VSS MA7 VDD3 MA6 MA5 MA4 VSS MA3 VDD3 MA2 MA1 MA0 PGIO7 RESET VDDMAX-IN NC NC NC AGND DAC AVDD DAC COMPOS OUT AGND DAC Y-OUT AVDD DAC AGND DAC RREF (1.235V) VREF AVDD DAC C-OUT AGND DAC (GCK INT) CLK SEL CLK SEL CLK SEL VSS RESERVED VDD3 DA-EMP RESERVED AGND PLL DA-XCLK AVDD PLL PGIO4 PGIO5 PGIO6

I/O O ­ O ­ O O O ­ O ­ O O O I/O I I ­ ­ ­ ­ ­ O ­ O ­ ­ I O ­ O ­ I I I ­ I ­ ­ ­ ­ I ­ I/O I/O I/O

Function Address data from CL680 to Microcode ROM/DRAM Ground Address data from CL680 to Microcode ROM/DRAM +3.3V Power supply Address data from CL680 to Microcode ROM/DRAM Address data from CL680 to Microcode ROM/DRAM Address data from CL680 to Microcode ROM/DRAM Ground Address data from CL680 to Microcode ROM/DRAM +3.3V Power supply Address data from CL680 to Microcode ROM/DRAM Address data from CL680 to Microcode ROM/DRAM Address data from CL680 to Microcode ROM/DRAM Not used Reset signal input from the host MPU Fix the maxium input voltage each input pin and I/O pin Not used Not used Not used Ground +3.3V Power supply Not used Ground Luminance signal out +3.3V Power supply Ground Fix the video signal output level Reference voltage (+1.235V) +3.3V Power supply Chrominance signal out Ground GCK selection "H"; Internal, "L"; External DA-XCK selection (1) DA-XCK selection (2) Ground Selection the operation clock 42.336MHz +3.3V Power supply Not used Not used Ground Main reference clock input (16.9344MHz=384fs) +3.3V Not used Not used Not used

­ 87 ­

Pin No. 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128

Pin Name PGIO0 PGIO8 PGIO2/VSYNC/CSYNC AVDD PLL NC NC NC AGND PLL VSS NC PGIO3/HSYNC VDD3 PGIO1/VCK-OUT VSS GCK VCK-IN GCKOUT/DA-EMP DA-LRCK VDDMAX-OUT DA-DATA DA-BCK HD-OUT HRDY HINT CDG-SCK VSS HCK VDD3 HD-IN VDD3 HSEL CDG-SDATA CDG-VFSY CDG-SOS1 NC NC NC NC

I/O I/O I/O O ­ ­ ­ ­ ­ ­ ­ I/O ­ I/O ­ I I O O O O O O O O I/O ­ I ­ I ­ I I I I ­ ­ ­ ­

Function Not used Not used Vertical synchronized signal of video signal +3.3V Power supply Not used Not used Not used Ground Ground Not used Not used +3.3V Power supply Not used Ground Not used Main clock for video signal processer Not used Digital Audio Left or Right channel selection clock Fix the maxium output voltage certain output pins (Connected to +5V) Digital Audio data Digital Audio bit clock Serial Data output from CL680 to the host MPU Ready signal CL680 is ready for communication to the host MPU Request signal for interrupting the host MPU Not used Ground Host clock : referance signal for the host bus interface +3.3V Power supply Serial Data output ftom the host MPU to CL680 +3.3V Power supply Select data or address of the host MPU Ground (Not used) Ground (Not used) Ground (Not used) Not used Not used Not used Not used

­ 88 ­

· IC501 MASTER CONTROL (M30622MA-A09FP) (MAIN Board (3/4)) Pin No. 1 2 3 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 37 38 39 40 41 42 43 44 45, 46 47 48 49 Pin Name STK-MUTE POWER F-RELAY REAR-RELAY CD-POWER LINE-MUTE DBFB-H/L ­ XC-IN XC-OUT RESET X-OUT VSS X-IN VCC NMI WAKE UP SCOR RDS-INT RDS-DATA AC-CUT PL-CLK PL-DATA PL-LAT TIMER LED PROTECTOR ­ IIC-CLK IIC-DATA ­ SQ-DATA SQ-CLK SW-MODE CD-DATA RY-SW CD-CLK 493-LAT ST-BY LED/ CLOCK-OUT L+R/L-R BY-PASS FL-SW STBY RELAY BASS FREQ ­ 493-DATA 493-CLK ST-MUTE I/O O O O O O O O ­ I O I O ­ I ­ I I I I I I O O O I I ­ O O ­ I I O O I O O O I I I I O ­ O O O Function Power amp ON/OFF signal output Power ON/OFF signal output Front speaker relay control output Rear speaker relay control output (Not used) CD power on signal output Line mute ON/OFF selection output DBFB H/L select signal output Not used X'tal (32.768MHz) Reset signal input X'tal (16MHz) Ground X'tal (16MHz) Power supply (+5V) Not used (PULL UP EVER+5V) WAKE UP (Fixed at fixed at "L") Subcode data request signal output (Not used) RDS data interrupt input Back up signal input Clock signal to pro-logic (Not used) Data signal to pro-logic (Not used) Latch signal to pro-logic (Not used) Timer LED ON/OF Speaker protect ON/OF Not used Clock output for IC601 Data output for IC601 Not used Subcode Q data clock input Not used Not used CD data output (Not used) Head phone swich detect CD clock output (Not used) Latch signal output for M62493FP (IC101) Clock ond stand by LED signal output Not used FL switch ON/OFF Stand by relay ON/OFF FREQ high/low signal for SYNC bass Not used Data output for M62493FP (IC101) Clock output for M62493FP (IC101) Tuned mute signal output

­ 89 ­

Pin No. 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 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

Pin Name STEREO TUNED ST-CE ST-DOUT ST-DIN ST-CLK SENS HDLD XLT XRST DISC-SENS T-SENS VCC TBL-L VSS TBL-R LOAD-OUT LOAD-IN ENC 3/UP-SW ENC 2/DISC-LED ENC 1 OUT-OPEN B-TRG A-TRG CAP-M-COT2 CAP-M-COT1 CAP-M-H/L AMS-IN TC-MUTE R/PB/PAS NR-ON/OFF REC-MUTE BIAS EQ-H/N PB-A/B ALC B-PLAY-SW A-PLAY-SW A-HALF B-HALF B-SHUT A-SHUT SOFT-TEST KEY/CD-ADJ MODEL IN AVSS SPEC-IN VREF AVCC TC-RELAY

I/O I I O O I O I O O O I I ­ O ­ O O O I I I O O O O O O I O O O O O O O O I I I I I I O I I ­ I I ­ O

Function Stereo detection for tuner Tuned detection for tuner Tuner chip enable output Tuner data output Tuner data input Tuned clock output BD Condition signal input (Not used) Mode hold signal output (Not used) CD latch signal output (Not used) CD reset signal output Slit sensor of disc table input CD table detection signal input Power supply (+5V) Table motor control output Ground Table motor control output Loading motor control signal output

Disc tray address detect encoder input Loading out detection signal output Trigger motor control output Capstan motor control 1(-) signal output Capstan motor control 2(-) signal output Capstan motor H/L speed select signal output Connected to ground TC mute ON/OFF selection output REC/PB/PASS selection output NR ON/OFF signal output REC mute ON/OFF selection output Bias ON/OFF selection output Equalizer H/N select output PB Deck A/Deck B select output ALC ON/OFF output Deck B play detect Deck A play detect Deck A cassette detect Deck B cassette detect B Deck reel pulse detector A Deck reel pulse detector Software test port CD adjust point port Version select signal input Ground Version select signal input Analog reference voltage input Analog power supply REC/PB head selection output for IC602

­ 90 ­

· IC601 DISPLAY CONTROL (TMP88CS76F-6005) (PANEL Board (2/2)) Pin No. 1 2 3 4 5 6 7 8 9 10 11 to 14 15 16 17 18 19 20 21 22 23 24 25 26 27 to 40 41 42 to 45 46 to 67 68 69 70 71 72 73 74 75 76 77 78 79 80 Pin Name SIRCS JOG A L/P SCK LED LA L/P DAT PAD LA L SEL JOG B VOL A VOL B KEY 0 to KEY 3 GRADATION L S LOW (F01) BPF 1 (F02) BPF 2 BPF 3 BPF 4 ALL B (L+R) GLADATION R/WAKE UP VSS I/O VASS VAref VDD I/O G 18 to G 5 VDD VFT G 4 to G 1 S 1 to S 22 VKK VDD for CPU X IN VSS for CPU X OUT RESET CH for PAD BUSY for PAD TEST ­ IIC DATA IIC CLK ­ ­ ­ I ­ O ­ O O ­ ­ I ­ O I O O I ­ O O ­ I/O I I O O O O O I I I I O O O O O O I O Function Remote commander signal input Rot