Sony XVMR-90-D Service manual

XVM-R90D

System

Laser Semiconductor laser Signal format system NTSC/PAL

Audio characteristics

Frequency response 20 Hz to 20 kHz Signal to noise ratio 90 dB (A) Harmonic distortion 0.05 % Dynamic range 90 dB Wow and flutter below measurable limits

(±0.001% W PEAK)

General

Outputs FM output

Audio output Video output Optical output

Inputs Audio input

Video input

DC 12V input Power requirements 12 V DC Dimensions Approx. 285 × 73 × 455 mm

(w/h/d) Mass Approx. 3.5 kg Operating temperature 0 ˚C to 45 ˚C Supplied accessories Card remote commander

RM-X137

Power supply lead (1)

RF modulator cable (1)

Mounting plate (1)

Screws (5)

Tapping screws (8)

Operating Instructions (1)

Monitor

System Liquid crystal colour

display Display Manual flipdown panel Drive system TFT-LCD active matrix

system Picture size 9 inches wide screen (16:9) Picture segment 336,960 (w 1,440 × h 234)

dots

Design and specifications are subject to change without notice.

SERVICE MANUAL

Ver 1.0 2004.07

Copyrights

This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents, other intellectual property rights owned by Macrovision Corporation, and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.

•“Memory Stick,” Memory Stick” are trademarks of Sony Corporation.

•“Memory Stick Duo” and “ are trademarks of Sony Corporation.

•“MagicGate” and “ trademarks of Sony Corporation.

•“Memory Stick PRO” and “ are trademarks of Sony Corporation.

Manufactured under license from Dolby Laboratories. “Dolby”, “Pro Logic”, and the double-D symbol are trademarks of Dolby Laboratories.

“DTS,” “DTS Digital Surround” and “DTS Digital Out” are trademarks of Digital Theater Systems, Inc.

and “MagicGate

”

” are

”

E Model

SPECIFICATIONS

9-879-085-01

OVERHEAD DVD ENTERTAINMENT SYSTEM

Sony Corporation

e Vehicle Company Published by Sony Engineering Corporation

XVM-R90D

CAUTION

The use of optical instruments with this product will increase eye hazard.

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 the soldering iron around 270 ˚C during repairing.

• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering or unsoldering.

This label is located on the bottom of the chassis.

CAUTION INVISIBLE

VIEW DIRECTLY WITH OPTICAL INSTRUMENTS

This label is located on the drive unit’s internal chassis.

LASER RADIATION WHEN OPEN

DO NOT STARE INTO BEAM OR

1. SERVICING NOTES ................................................ 3

2. GENERAL

Location of Controls........................................................ 5

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 7

3-2. Bracket (Main) ................................................................ 7

3-3. DVD Mechanism Deck Block......................................... 8

3-4. MAIN Board.................................................................... 8

3-5. Rear Cover (Hinge) ......................................................... 9

3-6. LCD Block ...................................................................... 9

3-7. LCD Board ...................................................................... 10

3-8. Liquid Crystal Display Panel (LCD1) ............................. 10

4. TEST MODE.............................................................. 11

5. ELECTRICAL ADJUSTMENTS ......................... 12

6. DIAGRAMS

6-1. Block Diagram – MPEG DECODER Section – ............ 17

6-2. Block Diagram – AUDIO Section – ............................... 18

6-3. Block Diagram – VIDEO, PANEL Section –................. 20

6-4. Block Diagram – POWER SUPPLY Section – .............. 21

6-5. Printed W iring Board

– MAIN Board (Component Side) – ............................... 22

6-6. Printed W iring Board

– MAIN Board (Conductor Side) – ................................. 23

6-7. Schematic Diagram – MAIN Board (1/4) – ................... 24

6-8. Schematic Diagram – MAIN Board (2/4) – ................... 25

6-9. Schematic Diagram – MAIN Board (3/4) – ................... 26

6-10. Schematic Diagram – MAIN Board (4/4) – ................... 27

6-11. Printed Wiring Board – LCD Board (Side A) – ............. 28

6-12. Printed Wiring Board – LCD Board (Side B) – ............. 29

6-13. Schematic Diagram – LCD Board (1/4) – ...................... 30

6-14. Schematic Diagram – LCD Board (2/4) – ...................... 31

6-15. Schematic Diagram – LCD Board (3/4) – ...................... 32

6-16. Schematic Diagram – LCD Board (4/4) – ...................... 33

6-17. Printed Wiring Board – PANEL Section (1/2) – ............ 34

6-18. Printed Wiring Boards – PANEL Section (2/2) – ........... 35

6-19. Schematic Diagram – PANEL Section –........................ 36

7. EXPLODED VIEWS

7-1. Skirt (Cabinet) Section .................................................... 52

7-2. Front (Panel) Section ....................................................... 53

7-3. MAIN Board Section....................................................... 54

7-4. Cabinet (Base) Section .................................................... 55

7-5. LCD Section.................................................................... 56

8. ELECTRICAL PARTS LIST................................ 57

SECTION 1

SERVICING NOTES

XVM-R90D

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

Never look into the laser diode emission from right above when checking it for adjustment. It is feared that you will lose your sight.

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with

the lead free mark due to their particular size)

: LEAD FREE MARK

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 ˚C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 ˚C. Caution: The printed pattern (copper foil) may peel away if

the heated tip is applied for too long, so be careful!

• Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

XVM-R90D

About discs this player can play

This player can play the following discs:

•DVD

•DVD-R/DVD-RW

•Video CD

•Audio CD

•CD-R/CD-RW

Disc type Label on the disc

DVD VIDEOs

Video CDs

Region code of DVDs this player can play

This player has a region code printed on the rear of the player and will only play DVDs that are labelled with identical region codes. DVDs labelled If you try to play any other DVD, the message “REGION ERROR” will appear on the screen. Depending on the DVD, the region code indication may not appear even if the DVD is prohibited by area restrictions.

ALL

will also be played on this player.

Region code

Audio CDs

MP3 files/ JPEG files

“DVD VIDEO,” “DVD-R” and “DVD-RW” are trademarks.

Notes on CD-Rs (recordable CDs)/ CD-RWs (rewritable CDs)/DVD-Rs (recordable DVDs)/DVD-RWs (rewritable DVDs)

•Some CD-Rs/CD-RWs/DVD-Rs/DVD-RWs (depending on the equipment used for its recording or the condition of the disc) may not play on this player.

•You cannot play a CD-R/CD-RW/DVD-R/ DVD-RW that is not finalized*.

•You cannot play a CD-R/CD-RW that is recorded in Multi Session.

•You can play MP3/JPEG files recorded on CD-ROMs, CD-Rs, and CD-RWs.

* A process necessary for a recorded CD-R/CD-RW

disc to be played on the audio CD player.

Cautions

• This player CANNOT play these discs. — DVD-Audio — DVD-RAM — DVD-ROM — CD-G — SVCD — CD-I — Photo-CD — VSD — Active-Audio (Data) — CD-Extra (Data) — Mixed CD (Data)

— CD-ROM (the data other than the MP3/JPEG

file)

— DVD-RW recorded in VR mode

• This product incorporates copyright protection technology that is protected by method claims of certain U.S. patents and other intellectual property rights owned by Macrovision Corporation and other rights owners. Use of this copyright protection technology must be authorized by Macrovision Corporation, and is intended for home and other limited viewing uses only unless otherwise authorized by Macrovision Corporation. Reverse engineering or disassembly is prohibited.

Note on PBC (Playback Control)

This player conforms to Ver. 1.1 and Ver. 2.0 of Video CD standards. You can enjoy two kinds of playback according to the disc type.

Disc type

Video CDs without PBC functions (Ver. 1.1 discs)

Video CDs with PBC functions (Ver. 2.0 discs)

You can

Video playback (moving pictures) as well as music.

•Interactive software with menu screens displayed on the monitor

•Video playback functions.

•High-resolution still pictures if they are

included on the disc.

Location of controls

1 2 3 4 5 6

7 8

SECTION 2

GENERAL

0 qa

qs qd

qg qh

XVM-R90D

This section is extracted from instruction manual.

Refer to the pages listed for details.

1 Disc slot 2 POWER (on/off) button

To turn on/off the player.

3 DISC IN light

When a disc is in the player, the DISC IN light glows orange.

4 RESET button 5 . (previous)/> (next) buttons 6 Receptor for the card remote

commander/Transmitter for the cordless headphones

7 Monitor 8 VOL +/– buttons

To turn up or down the volume or to select the item during menu operation.

9 EJECT button

Available to eject a disc from the player even when the player is turned off.

q; “Memory Stick” slot qa x (stop) button qs u (play/pause) button qd OPEN button

Slide to open the monitor.

qf Speakers (left/right) qg REVERSE button

To switch images upside down and reverse the output of the audio channels.

qh MENU button

To make various display settings and FM modulator setting.

Note

Even when the player is turned off by pressing (POWER), you can eject a disc from the player, though you cannot insert a disc.

XVM-R90D

Card remote commander RM-X137

ENTER

INPUT

POWER

CLEAR

SUBTITLE

ANGLE

AUDIO

SETUP

DISPLAY

123 456 7 890

TOP MENU

VOL

The corresponding buttons of the card remote commander control the same functions as those on the player.

Instructions in this manual describe how to use the player by mainly using the card remote commander.

Tip

Refer to “Replacing the lithium battery” for details on how to replace the battery.

Refer to the pages listed for details.

1 DISPLAY button

To display the time information of the disc.

2 Number buttons (0 to 9) 3 TOP MENU button

To display the top menu of a recorded DVD.

4 MENU button

To display the recorded DVD menu, or to turn on/off the PBC (Playback control) menu of a Video CD.

5 O (return) button 6 ./> (previous/next) buttons 7 m (fast reverse)/

M (fast forward) buttons

8 M/,/m/< buttons 9 POWER (on/off) button

To turn on/off the player.

q; SEARCH button

To specify a desired point on a disc by chapter, title, or track.

qa CLEAR button qs SUBTITLE button

To change the subtitle language while playing a DVD.

qd ENTER button

To enter a setting.

qf ANGLE button

To select the multiple angles of view while playing a DVD.

qg AUDIO button

To change the audio output/audio language.

(slow reverse)/ y (slow forward)

buttons

qj u (play/pause) button qk x (stop) button

ql SETUP button

Used to perform menu operations.

w; INPUT button

To select the input source.

wa VOL (–/+) buttons

To turn up or down the volume.

XVM-R90D

Where to install

Before installing this unit, please check your local traffic rules and regulations. Follow the diagram below to install this unit in a suitable position in your car.

Do not install this unit where:

— It will obstruct the driver’s view when the

monitor is in either the open or closed position.

— It will obstruct the operation of the airbag

system.

— It will obstruct the operation of the

vehicle, especially the steering wheel, shift lever, or brake pedal.

—A driver or passengers may injure

themselves when getting into or out of the car.

If you have any questions or problems concerning your unit that are not covered in this manual, please consult your nearest Sony dealer.

Before installing

Make sure that the POWER SELECT switch is set to the correct position. A*: If your car has an accessory position on

the ignition key.

B : If your car has no accessory position on

the ignition key.

* A is the factory preset position.

When the POWER SELECT switch is set to B

Press (POWER) on the player to turn on. The player does not turn on by pressing (POWER) on the card remote commander.

POWER SELECT

switch

Note

Be sure to turn off the player after driving your car. To turn off the player, follow the operations below: – Press (POWER) on the player. – Press (POWER) on the card remote commander. If the power is left on, it will cause battery drain.

Connections

Installation diagram

Refer to the installation diagram and ask a qualified technician for the installation of the unit.

Front Left

Tweeter Left

Rear Right speaker

speaker

Note

All equipment other than one DVD player is optional.

Head unit

Be sure to securely fasten all equipment to the car chassis, etc., to prevent them moving while your car is in motion.

Tweeter Right

Front Right speaker

Rear Left speaker

XVM-R90D

Subwoofer

Connection diagram

Refer to the connection diagram for the proper connections.

Note

Set the POWER SELECT switch before installing (page 6).

Amplifier equipped with a digital input (optional)

From the car aerial

0.5 m

Aerial connector*

Speaker system (optional)

*1An adapter (optional) may be necessary for your

car and car audio system. In such a case, consult your dealer.

If your car has no ACC (accessory) position on

the ignition key switch, set the POWER SELECT switch to B (page 6) and connect this ACC cable to the +12 V power (battery) terminal.

Car audio (optional)

RCA pin cord (not supplied)

On AUDIO/VIDEO OUTPUT connectors

You can connect a Monitor to the AUDIO/ VIDEO OUTPUT connectors to output the contents being played back on the player.

Relay box

Optical cable (not supplied)

5 m

AUDIO/VIDEO OUTPUT

Black

Yellow

Fuse (5 A)

Filter box Red

Fuse (1 A)

Blue

4 Pin Power connector

GND (1 m)

Back-up (5 m)

ACC (5 m)

POWER REM (5 m)

Max. supply current 0.3 A

AUDIO/VIDEO INPUT

On AUDIO/VIDEO INPUT connectors

You can connect a VTR, etc. to the AUDIO/ VIDEO INPUT connectors to input the contents being played back on the device.

To a metal surface of the car chassis

To car battery (12 V)

To ignition switch* (ACC position)

To a power amplifier

RCA pin cord (not supplied)

• This set can be disassembled in the order shown below.

)

3-1. DISASSEMBLY FLOW

SET

XVM-R90D

SECTION 3

DISASSEMBLY

3-2. BRACKET (MAIN)

(Page 7)

3-3. DVD MECHANISM

DECK BLOCK (Page 8)

Note: Follow the disassembly procedure in the numerical order given.

3-4. MAIN BOARD

(Page 8)

3-2. BRACKET (MAIN)

3-5. REAR COVER (HINGE)

(Page 9)

3-6. LCD BLOCK

(Page 9)

3-7. LCD BOARD

(Page 10)

3-8. LIQUID CRYSTAL

DISPLAY PANEL (LCD1) (Page 10)

two screws (BTP2.6

bracket (support)

four screws (B2.6

six screws (BTP2.6

bracket (main

XVM-R90D

3-3. DVD MECHANISM DECK BLOCK

bracket (front)

two screws (BTP2.6

DVD mechanism deck block

two screws (BTP2.6

3-4. MAIN BOARD

three screws (BTP2.6

flexible flat cable (30P) (CN102)

connector (CN702)

MAIN board

screw (BTP2.6

flexible flat cable (50P) (CN101)

connector (CN108)

harness

connector (CN105)

connector (CN107)

connector (CN302)

connector (CN103)

connector (CN104)

connector (CN701)

connector (CN705)

flexible flat cable (50P) (CN101)

3-5. REAR COVER (HINGE)

rear cover (hinge)

two claws

LCD block

two screws (P2 × 8)

XVM-R90D

Slide the knob (open) in the direction of arrow A, and open the LCD block in the direction of arrow B.

3-6. LCD BLOCK

two screws (PS3

Lifting up the LCD block in the direction of arrow

10)

front cover (hinge)

two screws (PS3

rear cover (hinge)

10)

two connectors (CN105, 108)

connector (CN107)

connector (CN103)

XVM-R90D

3-7. LCD BOARD

connector (CN850)

eight screws (BTP2 × 6)

screw (PS2.6 × 6)

two connectors (CN906, 907)

four screws (B2 × 5)

rear case (LCD)

3-8. LIQUID CRYSTAL DISPLAY PANEL (LCD1)

two retainers (LCD)

liquid crystal display panel (LCD1)

flexible board (CN801)

two screws (BTP2 × 6)

LCD board

two connectors (CN905, 908)

front case (LCD) block

two retainers (LCD)

two screws (BTP2 × 6)

shield plate (LCD)

SECTION 4

TEST MODE

XVM-R90D

Note: This set is able to setting the adjustment data, reset to factory default

and initialize the EEPROM (IC402 on the MONITOR board) in the test mode.

ENTER THE TEST MODE

Procedure:

1. Press the [POWER] button to turn the power ON.

2. While pressing the [VOL --] and . buttons, press the [RESET] button.

3. The set is enter the test mode and display as bellow figure.

Display

TEST MODE MENU

1. NTSC/PAL SELECT

2. FOR FACTORY

3. LCD SETTING

4. FM TRANSMITTER

5. HEAT PROTECTION

6. VOLTAGE SETUP

7. LOAD DEFAULT

8. SOFT RESET(EXIT) Dream System 20XX Ver.20XX-XX-XXx

Note: If initial data is not written to the EEPR OM (IC402 on the MONITOR

board) or data is clobbered, the set is not able to display normally screen.

BATCH WRITING OF THE INITIAL DATA TO EEPROM

In the test mode, by pressing the [VOL --] button at two seconds, batch writing is possible of the initial data to EEPOM (IC402 on the MONITOR board).

3. LCD SETTING

This mode is not used in servicing.

4. FM TRANSMITTER

In this mode, switch the frequency range of FM transmitter as follow.

1) USA (88.3 to 89.9 MHz)

2) Japan (76.5 to 79.5 MHz)

3) Transmitter off

5. HEAT PROTECTION

This mode is not used in servicing.

6. VOLTAGE SETUP

This mode is not used in servicing.

7. LOAD DEFAULT

This mode is not used in servicing.

8. SOFT RESET (EXIT)

Releasing the test mode.

OPERATION OF THE TEST MODE

All operations are performed using the bellow buttons.

Button Function

MENU Select the item REVERSE Enter VOL + Up the data value VOL − Down the data value

RELEASING THE TEST MODE

In the test mode menu screen, press the [MENU] button to select “8. SOFT RESET (EXIT)”, and press the [REVERSE] button to release the test mode.

OPERATING THE EACH ITEM

1. NTSC/PAL SELECT

In this mode, switch the signal format system to NTSC or P AL.

2. FOR FACTORY

In this mode, change the data of adjustment data. Enter this mode, it displays each adjustment item as follow.

1) Com Gain

2) Y Gain

3) Black Limit

4) White Limit

5) R-Sub BRT

6) B-Sub BRT

7) R-Sub CONT

8) B-Sub CONT

9) Gamma 1

10) Gamma 2

11) VCO Free Run

12) PLL/V Pos

13) H Pos

XVM-R90D

SECTION 5

ELECTRICAL ADJUSTMENTS

1. DC/DC CONVERTER ADJUSTMENT

1-1. Frequency Adjustment

Setting:

oscilloscope

frequency counte

MONITOR board

TP802 TP804

Procedure:

1. Connect an oscilloscope or frequency counter to the TP802 and TP804 on the MONITOR board.

2. Check that the voltage between TP951 (−) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. Adjust the RV801 on the MONITOR board so that the value of oscilloscope or frequency counter becomes 243 kHz ±3 kHz.

1-2. 5V Voltage Adjustment

Setting:

MONITOR board

TP807 TP804

Procedure:

1. Connect a digital voltmeter to the TP804 and TP807 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. Adjust the RV803 on the MONITOR board so that the value of digital voltmeter becomes 5.05 V ±0.03 V.

1-3. Other Voltages Check

Setting:

MONITOR board

TP805/TP806/TP808

TP804

Procedure:

– Vdd Voltage Check –

1. Connect a digital voltmeter to the TP804 and TP808 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. Check that the value of digital voltmeter is 3.45 V ±0.2 V .

– Vgh Voltage Check –

4. Connect the digital voltmeter to the TP804 and TP806 on the MONITOR board.

5. Check that the value of digital voltmeter is 17.5 V ±1.5 V .

– Vss Voltage Check –

6. Connect the digital voltmeter to the TP804 and TP805 on the MONITOR board.

7. Check that the value of digital voltmeter is –12.0 V ±1.5 V.

–

digital voltmete

–

digital voltmete

+ –

2. PLL ADJUSTMENT

Setting:

digital voltmete

MONITOR board

TP601 TP602

–

Procedure:

1. Connect a digital voltmeter to the TP601 and TP602 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. Adjust the RV601 on the MONITOR board so that the value of digital voltmeter becomes 2.4 V ±0.15 V .

3. INVERTER HIGH VOLTAGE CHECK

Setting:

digital voltmete

MONITOR board

TP853 TP854

–

Procedure:

– High Voltage Check –

1. Connect a digital voltmeter (for withstand high voltage) to the TP853 and TP854 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on. (DIMMER: off)

3. Check that the value of digital voltmeter is 550 V ±150 V (rms).

– Frequency Check –

4. Connect an oscilloscope (use a probe for withstand high voltage) to the TP853 and TP854 on the MONITOR board.

5. Check that the frequency of oscilloscope is 66 kHz ±2.5 kHz.

4. OSD DOT CLOCK CHECK

Setting:

MONITOR board

TP403 TP405

Procedure:

1. Connect a frequency counter (high impedance) to the TP403 and TP405 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. Check that the value of frequency counter is 6.5 MHz ±0.2 MHz.

frequency counte

+ –

XVM-R90D

0.286 V

1 Vp-p

–

oscilloscope

MONITOR board

TP811 TP513

5. NTSC SUB CARRIER CHECK

Setting:

frequency counte

MONITOR board

TP510 TP513

+ –

Procedure:

1. Connect a frequency counter (high impedance) to the TP510 and TP513 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. In the normal mode, press the [INPUT] key on the remote commander to select the “VIDEO” mode.

4. Input NTSC video signal to the “VIDEO INPUT” jack (J701 on the VIDEO (IN) board).

5. Check that the value of frequency counter is 3.579545 MHz ±100 Hz.

6. PAL SUB CARRIER CHECK

Setting:

frequency counte

MONITOR board

TP510 TP513

–

– Waveform Position Set-up Adjustment –

7. Adjust the RV802 on the MONITOR board so that A value of waveform becomes –1.7 V ±0.1 V .

4.6 V ± 0.1 V

0 V

: – 1.7 V ± 0.1

8. VIDEO ADJUSTMENT

Note: Perform the following adjustment items in test mode.

Common Setting:

1. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

2. Enter the test mode, and enter the “2. FOR FA CTOR Y” mode. (refer to “4. TEST MODE”)

3. Set the signal format system to NTSC. (refer to “4. TEST MODE”)

4. Input 10 steps signal (NTSC, without burst) to the VIDEO INPUT jack (J301 on the POWER board) from pattern generator.

Waveform of input signal

Procedure:

1. Connect a frequency counter (high impedance) to the TP510 and TP513 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. In the normal mode, press the [INPUT] key on the remote commander to select the “VIDEO” mode.

4. Input P AL video signal to the “VIDEO INPUT” jack (J701 on the VIDEO (IN) board).

5. Check that the value of frequency counter is 4.433619 MHz ±100 Hz.

7. V-COM ADJUSTMENT

Setting:

oscilloscop

MONITOR board

TP819 TP832

Procedure:

– Voltage Set-up Adjustment –

1. Connect an oscilloscope to the TP819 and TP832 on the MONITOR board.

2. Check that the voltage between TP951 (–) and TP952 (+) is

14.4 V. Press the [POWER] button to turn the power on.

3. Enter the test mode, and enter the “2. FOR FA CTOR Y” mode. (refer to “4. TEST MODE”)

4. Press the [MENU] button to display “Com Gain”, and press the [REVERSE] button.

5. Adjust by pressing the [+]/ – buttons so that the voltage of oscilloscope becomes 6.3 Vp-p ±0.1 V.

–

fig. 8-1

Waveform of output signal (TP810, TP811, TP812)

0 V

AB CDE

fig. 8-2

1 Contrast Level of Luminance Signal

Setting:

Procedure:

1. Connect an oscilloscope to the TP513 and TP811 on the MONITOR board.

2. Press the [MENU] button to display “Y Gain”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the D value of waveform (fig. 8-2) becomes 3.4 V V.

+0.2 –0.1

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

6.3 Vp-p ± 0.1

6. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

XVM-R90D

2 Back Limiter Level

Procedure:

1. In the “1 Contrast Level of Luminance Signal” status, press the [MENU] utton to display “Black Limit”, and press the [REVERSE] button.

2. Adjust by pressing the [+]/ – buttons so that the A value of waveform (fig. 8-2) becomes 1.0 V V.

+0.2 –0.1

3. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

3 White Limiter Level

Procedure:

1. In the “2 Black Limiter Level” status, press the [MENU] button to display “White Limit”, and press the [REVERSE] button.

2. Adjust by pressing the [+]/ – buttons so that the E value of waveform (fig. 8-2) becomes 3.9 V V.

+0.2 –0.1

3. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

4 R-sub Bright

Procedure:

1. In the “3 Wh ite Limiter Level” status, connect the oscilloscope to the TP513 and TP810 on the MONITOR board.

2. Press the [MENU] button to display “R-Sub BRT”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the A value of waveform (fig. 8-2) becomes 1.0 V V.

+0.2 –0.1

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

5 B-sub Bright

Procedure:

1. In the “4 R-sub Bright” status, connect the oscilloscope to the TP513 and TP812 on the MONITOR board.

2. Press the [MENU] button to display “B-Sub BRT”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ waveform (fig. 8-2) becomes 1.0 V V.

– buttons so that the A value of

+0.2 –0.1

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

6 R-ch Sub Contrast

Procedure:

1. In the “5 B-sub Bright” status, connect the oscilloscope to the TP513 and TP810 on the MONITOR board.

2. Press the [MENU] button to display “R-Sub CONT”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the D value of waveform (fig. 8-2) becomes 3.4 V V.

+0.2 –0.1

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

7 B-ch Sub Contrast

Procedure:

1. In the “6 R-ch Sub Contrast” status, connect the oscilloscope to the TP513 and TP812 on the MONITOR board.

2. Press the [MENU] button to display “B-Sub CONT”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the D value of waveform (fig. 8-2) becomes 3.4 V V.

+0.2 –0.1

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

8 Gamma 1

Procedure:

1. In the “7 B-ch Sub Contrast” status, connect the oscilloscope to the TP513 and TP811 on the MONITOR board.

2. Press the [MENU] button to display “Gamma 1”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the B value of waveform (fig. 8-2) becomes 1.9 V V.

+0.2 –0.1

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

9 Gamma 2

Procedure:

1. In the “8 Gamma 1” status, press the [MENU] button to display “Gamma 2”, and press the [REVERSE] button.

2. Adjust by pressing the [+]/ – buttons so that the C value of waveform (fig. 8-2) becomes 3.1 V V.

+0.2 –0.1

3. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

q; VCO Free Run

Setting:

frequency counte

MONITOR board

TP506 TP513

–

Procedure:

1. In the “9 Gamma 2” status, connect a frequency counter to the TP506 and TP513 on the MONITOR board.

2. Press the [MENU] button to displa y “VCO Free Run”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the value of frequency counter becomes 15.734 kHz ±50 Hz.

4. Confirm that the displayed screen is normally display.

5. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

qa Vertical Position

Procedure:

1. In the “q; VCO Free Run” status, input the monoscope signal to the VIDEO INPUT jack (J301 on the POWER board).

2. Press the [MENU] button to display “PLL/V Pos”, and press the [REVERSE] button.

3. Adjust by pressing the [+]/ – buttons so that the v ertical position of screen on the monitor becomes the most suitable.

4. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

qs Horizontal Position

Procedure:

1. In the “qa Vertical Position” status, press the [MENU] button to display “H Pos”, and press the [REVERSE] button.

2. Adjust by pressing the [+]/ – buttons so that the horizontal position of screen on the monitor becomes the most suitable.

3. Press the [REVERSE] button and write the date to EEPROM (IC402 on the MONITOR board).

Adjustment Location:

– LCD BOARD (Side A) –

RV601

RV802

XVM-R90D

TP853

RV803

RV801

– LCD BOARD (Side B) –

TP506

TP510

TP513

TP405

TP403

TP832

TP601

TP987

TP811

TP812

TP602

TP983

TP805

TP951 (

TP810

TP819

TP808

−

)

TP828

TP806 TP807

TP804

TP952 (+)

TP802

TP854

XVM-R90D

MEMO

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – MPEG DECODER Section –

B+8V B+5V

+8V

+5V

HD0 – HD15

DVD MECHANISM

DECK BLOCK

HCS1J

HCS16J

HCS3J

HINTJ

IORDY

ENDSW

HA0 HA1 HA2

IOWJ

IORJ

RST

HDO – HD15

122 – 128,

131 – 137, 140, 141

154

HA0

155

HA1

158

HA2

152

XHCS1FX

151

XHIOCS16

153

HCS3FX

144

HIRQ

146

HIORDY

149

XHWR

150

XHRD

166

ENDSW

145

XHRST

114VBS

113Y

108B-Y

106R-Y

33DAC DATA 39DAC MCLK 40DAC BCK 32DAC LRCK 165DAC ML 143DAC MC 118DAC MD

CVBS

B-Y

R-Y

D/A CONVERTER

2 DATA

16 SCK

1 BCK

3 LRCK 15 ML 14 MC 13 MD

XVM-R90D

CVBS,

Y, B-Y, R-Y

IC7

7VOUTL

8VOUTR

R-CH

11ZEROR

LOW-PASS

FILTER

IC701

MUTING

Q702, 704

MUTING SWITCH

Q1, 2

R-CH

DELAY

D13, Q3

L-CH_AU

(Page 19)

(Page 18)

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH : DVD (VIDEO)

: DVD (AUDIO)

: DIGITAL OUT

: CHECK IN

: CHECK OUT

MS SDIO

MC SCLK

MS BS

MS INS

VCC

(Page 18)

MEMORY

STICK

DA-BE, CK-BE, CS-BE

B+3.6V

142 MS SDIO

117 MC SCLK

167 MS BS

119 MS INS

DA-BE

CK-BE

168169162

CS-BE

41SPDIF

SDA

160

161

SDA

EEPROM

IC5

SCL

OPTICAL

TRANSCEIVER

J301

DB0 - DB15 DMA0 - DMA11 LD0 - LD14 LA0 - LA19

77 - 82, 85 - 90,

93 - 96

2, 4, 5, 7, 8, 10, 11, 13, 42,

44, 45, 47, 48, 50, 51, 53

DQ0 - DQ15 A0 - A11

OPTICAL OUTPUT

MPEG DECODER

53 - 58,

61 - 66

22 - 26,

29 - 25, 22

SD-RAM

IC6

IC1

102

DSCK_EN

DSCK

CLK37CKE

DBANK0

BA021BA1

DBANK1

XDCAS72XDRAS0

XCAS

XRAS0

XDWE

100

XWE

XDCS0

DQM

101

XCS

DQMH

178 - 182, 185 - 191,

194 - 196

29 - 36, 38 - 44

DQ0 - DQ14

204 - 207, 2-7,

10 - 16, 19 - 21

45, 25, 24 - 16,

8 - 1, 48

A–1, A0 - A18

FLASH ROM

IC3

XLWRLL

198

XWE

176

XLCS3

170

XCE

XLOE

XOE

24XRESET

12XRST

RESET SIGNAL

GENERATOR

IC2

B+5V

XVM-R90D

1717

XVM-R90D

6-2. BLOCK DIAGRAM – AUDIO Section –

RV900

VCO

AUDIO INPUT

(Page 17)

(Page 19)

L-CH_AU

SW1

J701 (1/2)

R-CH

DIFFERENTIAL

AMP

IC703

AUDIO INPUT

VIN1

3 VIN2

SELECT

IC704

VOUT

SW1

R-CH

IR TRANSMITTER

MODULATOR

IC904

ELECTRICAL VOLUME

IC706

LIN1

DATA

LOUT1

CLK4DATA

CLK

LED DRIVE

Q902

D912, 914, 916

(IR TRANSMITTER)

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH : DVD (AUDIO)

: AUX INPUT (AUDIO)

LINE AMP

IC708

POWER ON

MUTING

Q321, 322

MUTING

Q708

MUTING SWITCH

Q318

POWER ON

MUTING

Q319, 320

D911, 913, 915

(IR TRANSMITTER)

MUTING

B+8V

R-CH

MUTING CONTROL Q316, 317

Q713

R-CH

DISCHARGE SWITCH

POWER AMP

IC707

STANDBY

SWITCH

Q710, 711

Q714, 715

R-CH

J702 (1/2)

POWER ON

SP1

(L)

SP2

(R)

AUDIO

OUTPUT

R-CH

(Page 20)

(Page 17)

DA-BE, CK-BE, CS-BE

DA-BE

DA (IN)-BE

CK-BE

CS-BE

CK-BE18CS-BE

DA (OUT)-BE

DATA

S-SDA

CLK

S-SCL

BUFFER

Q206

Q207

FM1

R-CH

Q202, 204

RF LEVEL

SWITCHING

Q204

BUFFER

Q205

FM2

Q202

R-CH

B+8V

B+ SWITCH

Q323, 324

D317

SYSTEM CONTROLLER

IC401 (1/3)

LIN

RIN

14 13

MPX ADJ

XIN

X201

7.6MHz

XOUT

+5V

REGULATOR

IC304

LOW-PASS FILTER

Q208, 209

FM STEREO

MODULATOR

IC201

FM+5V

VTIN

LEVEL SHIFT

Q210 – 213

RF OUT

DATA16CLK15CE18ATT

FM-CE

FM-CLK

FM-DATA

AMP ON

BPF

FL201

(FM MODULATOR)

D204

AMUTE

XVM-R90D

1818

6-3. BLOCK DIAGRAM – VIDEO, PANEL Section –

VIDEO INPUT

SELECT

IC101

6VIN1

4VIN2

SW1

VIDEO INPUT SELECT

IC102

1IN1B

16 IN1A

9IN3B 8IN3A

14 IN2B 11 IN2A

SW27SW3

SW1

2VOUT

3OUT1

6OUT3

5OUT2

S908

(PANEL CLOSE DETECT)

(ON: CLOSE)

MONITOR SW

VIDEO INPUT

(Page 17)

(Page 18)

CVBS, Y, B-Y, R-Y

SW1

J701 (2/2)

CVBS

B-Y

R-Y

SW1

J702 (2/2)

VIDEO

OUTPUT

SYNC

SEPARATOR

Q502, 503

X501

3.58MHz

VXO-NTSC63VXO-PAL

CTRAPOUT

YIN

CIN

B-Y IN

R-Y IN

CSYNCIN

CSYNCOUT

V-SDA48V-SCK47HSYNCLOCK

V-SCK

V-SDA

X502

4.43MHz

HDOUT

VDOUT

SYNC LOCK

Q505, 506

SYNC-DET

TRAP

RGB DECODER

32 31

IC501

BUFFER

Q501

PAL/NTSC SWITCH

Q504

CTRAPIN

VDIN

SYSTEM CONTROLLER

IC401 (2/3)

VCOMOUT

R-OUT

G-OUT

B-OUT

R-IN2 G-IN2 B-IN2

BLAK36POL

BLAK

POL

XVM-R90D

LIQUID CRYSTAL

Q603

DISPLAY MODULE

LCD1

VCOM VCOM

RED

GREEN

BLUE

STV1 STV2 STH1 STH2

CPH1 CPH2 CPH3 CPV

OEV1 OEV2 OEV3 OEH

L/R

U/D

VHG

VDD1

VCC

VEE

VGH +17V VDD +3.3V VCC +5V

VSS –13V

RV802

STV1

U/D

V-COM

20 26STV2 23STH1 24STH2

29CPH1 27CPH2 25CPH3 16CPV

19OEV1 18OEV2 17OEV3 21OEH

28L/R

V COM AMP

IC802

14 15 16

OSD DRIVER

IC405

VR 17 VG 18 VB

15 BLK

20 HSYNCN 19 YSYNCN

DATA

OSC OUT

SCLK2CSN

DATA

CLK

OSD CSN

OSD SCLK

OSD DATA

OSC

8OSC IN

PHASE

COMPARATOR

IC602

RV601

PLL

Q601

N/P

HD VD BLAK POL

36 VCO1 37 VCO0

2 HSYNCIN 5 VDBIN 8 BLACK

14 POL

46 NP

LCD CONTROLLER

QHSEL31JUST13UD

CPHSEL

SIDE1

SIDE2

V COM BIAS

Q803 – 807

IC601

LTBOX

JUST

ZOOM

(Page 20)

XVM-R90D

KEY PW/EJ

D402

RESET

S902, 903

WAKE UP

SWITCH

Q401, 403

KEY HALT

KEY IN

S401 – 404

KEY DVD

S904 – 907

REM HALT45REM IN

SIRCS BUFFER

Q901

REMOTE CONTROL

RECEIVER

IC902

LED DRIVE

Q955

POWER EJECT

D901D900

LIGHT PW/EJ

DISC_LED

LED DRIVE

Q953

D902

DISC IN

TEMP

TEMPERATURE

SENSOR

IC901

SDA13SCL

SDA

EEPROM

IC402

SCL

41 40

X401

4.19MHz

• SIGNAL PATH

: DVD (VIDEO)

: AUX INPUT (VIDEO)

1919

XVM-R90D

6-4. BLOCK DIAGRAM – POWER SUPPLY Section –

FAN CONT

BATT

M301

(FAN)

+12V

REGULATOR

IC302

B+SWITCH

Q307, 308

SW12V

SYSTEM CONTROLLER

IC401 (3/3)

IR CONT

DIMMER

TFT ON

PW-ON

CONTROL Q305, 306

CONTROL Q302, 303

VCC

B+SWITCH

Q904, 905

+8V

REGULATOR

IC903

+8V

REGULATOR

IC303

SWITCHING

REGULATOR

Q304

SWITCHING

REGULATOR

Q301

F950

F302

F301

B+ SWITCH

Q309, 311

B+ SWITCH

Q325, 326

CN301

BATT

AMP REM

IR LED B+

D903

DC/DC

CONVERTER

POWER CONTROL

1IN+

2RT

OSC

Q857, 858

POWER CONTROL

1IN+

T801

IC801

IC850

71OUT

DIMMER

Q860, 861

162IN+

12VCC

VCC +7.5V

DC/DC

CONVERTER

Q801, 802

D950

SWITCHING

REGULATOR

Q855, 856, 859

B+ SWITCH

Q853, 854

+8V

REGULATOR

IC950

VCC

F801

F850

F951

B+ SWITCH

Q951, 952

VSS –13V

VGH +17V

VCC +5V

VDD +3.3V

RV803

VOLTAGE

(DC/DC CONVERTER)

RV801

FREQUENCY

(DC/DC CONVERTER)

INVERTER

TRANSFORMER

BACK LIGHT

UNIT

D852, 853

D801

D802

D803

D804

T850

DISC SLOT

ILLUMINATION

B+2.8V

B+3.6V

SWITCHING

REGULATOR

IC305

SWITCHING

REGULATOR

IC306

D305

D307, 308

D306

D315, 316

DEAD TIME

Q310

DEAD TIME

Q314

LATCH

Q313

SWITCHING

Q312

E-VOL +8V

B+5V

B+8V

POWER CONTROL

OUT1

10 OUT2

6DT1

11 DT2

15 SCP

IR +8V

REGULATOR

IC301

XVM-R90D

(Page 18)

POWER ON

RESET

ACC Y/N

ACC IN

U-COM +3.3V

Q402

S301

(POWER SELECT)

S901

RESET

RESET SIGNAL

GENERATOR

IC403

+3.3V

REGULATOR

IC952

PANEL +5V

+5V

REGULATOR

IC951

ACCESSORY

DETECT

Q315

RESER

ACC

(Page 19)

2020

• Note for Printed Wiring Boards and Schematic Diagrams • Circuit Boards Location

XVM-R90D

Note on Printed Wiring Boards:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• x : parts mounted on the conductor side.

• : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

Caution: Pattern face side: Parts on the pattern face side seen from (Conductor Side) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Component Side) the parts face are indicated.

Caution: Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Side A) the parts face are indicated.

Note on Schematic Diagram:

• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

• C : panel designation.

• A : B+ Line.

• B : B– Line.

• H : adjustment for repair.

• Power voltage is dc 14.4V and fed with regulated dc power

supply from ACC and BATT cords.

• Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : DVD PLAY (): STANDBY

∗ : Impossible to measure

• Voltages are taken with a VOM (Input impedance 10 MΩ).

Voltage var iations may be noted due to normal production tolerances.

• Waveforms are taken with a oscilloscope. Voltage var iations may be noted due to normal production tolerances.

• Circled numbers refer to waveforms.

• Signal path.

L : DVD (VIDEO) F : DVD (AUDIO) J : DIGITAL OUT a : AUX INPUT (VIDEO) E : AUX INPUT (AUDIO) d : CHECK IN G : CHECK OUT

W or less unless otherwise

FRONT board

LCD board

JACK (OUT) board

JACK (IN) board

SW board

MAIN board

KEY board

XVM-R90D

2121

XVM-R90D

6-5. PRINTED WIRING BOARD – MAIN Board (Component Side) –

• See Page 21 for Circuit Boards Location.

: Uses unleaded solder.

• Semiconductor Location

Ref. No. Location

D4 I-9 D13 I-12 D204 D-3 D317 F-3

IC1 H-7 IC101 G-4 IC304 E-3

Q1 I-12 Q2 I-12 Q3 I-12 Q205 E-3 Q206 F-3 Q207 E-3 Q208 D-2 Q209 E-3 Q708 E-12 Q709 E-12 Q710 D-14 Q711 D-14

1 2 3 4 5 6 7 8 9 10 11 12 13 14

CN103

(Page 28)

C732

C736

C738

C735

C744

C743

R730

LCD BOARD

CN906

113

R754R755

C734

C718

C719

R731

R84

BCEQ2BCE

R86

R87

R85

R88

C150

R83

D13

AKA

C726

C724

C725

C727

R769

R768

C745

C340

R80

C149

R775

R774

ECB

Q709

BCE

ECB

Q708

R82

CN705

R81

R738

R740

R736

R734

L701

CN701

R784

R785

JACK (IN)

BOARD CN703

(Page 35)

(11)

L702

R735

R737

R741

R739

C755

C756

L703

R782

C757

R781

R783

Q711

Q710

ECB

BCE

C759

1-863-445-

SP1

(L-CH)

–

SP2

(R-CH)

–

(Page 28)

LCD BOARD

CN908

MAIN BOARD

C397

MODULATOR

ANTENNA

(Page 35)

JACK (OUT)

CN704

CN702

R1760

R1761

R1762

C776

C772

R1759

L704L705

C771

C775

R1758

C218

C211

C217

R211

R218

C769

C766

C765

R786

R103

C343

C342

C222

L203

Q208

C215

R217

C165

R214

C226

C219

R212

R216

ECB

R236

R235

L202

SGD

C220

D204

R231R213

C221

R215

Q209

Q205

C255

C367

(COMPONENT SIDE)

CN201

X201

R227

R228

R229

R230

C346 C345

BCE

Q207

BCE

Q206

BCE

D317

C176

C372

150

C362

IC304

C344

C364

C169

L101

C370

R105

L307

C162

CN101

C365

IC101

136

C166

C170

C378

C254

C175

C161

C171

C173

R108R107

C168

R106R104

C381

C177

C178

C179

C134

C100

C95

C384

FB2

FB1

FB3

C147

C146

M301

C324

L305

L302

C328

C22

C23

L51

C96

R70

R31

C31

R32

C99

R72

C34 R34 C35

RB10

RB11

C44C52C58

RB12

RB13

RB14

RB15

RB16

156

C144

C702

C705

C701

R29

R30

C72

L56

C30

C33

105

C32

C69

C66

C68

R66

R68

R712

R710

R704

R703

R709

C704

C703

R711

C710

C711

–

(FAN)

L303

C27C28C29

L306

R27

RB3RB4RB5RB6RB7RB8

R25

R24

C26

IC1

R44

R43

R42

C74

C71

R40

C103

C104

R75

R76

C706

C78

C75

C102

C101

R77

R73

R74

(Page 28) (Page 28)

LCD BOARD

F C

RB2

C24C25

RB21

CN905

CN302

L304

C21

L48

C19

RB1

53104

208157

C82

C17

R21 R20 R19

R12

R9 R8 R7 R5

C4 C7 C18

RB20

RB19

RB18

RB17

C1 C2 C3

LCD BOARD

CN907

C151 C105 C106 C135

C338

CN107

CN105

L314

C392

C395

CN108

R377

(Page 35)

SW BOARD

C335

111

110

R111R110R109

C390

L313

C386

C383

C382

130

CN104

CN102

XVM-R90D

DVD MECHANISM

DECK BLOCK

KEY BOARD

CN911

(Page 34)

2222

+ 50 hidden pages

Sony XVMR-90-D Service manual

TABLE OF CONTENTS

SERVICING NOTES

GENERAL

DISASSEMBLY

DVD mechanism deck block

MAIN board

rear cover (hinge)

LCD block

liquid crystal display panel (LCD1)

LCD board

TEST MODE

ELECTRICAL ADJUSTMENTS

DIAGRAMS