Sony MV-65-ST Service manual

MV-65ST

SERVICE MANUAL

Ver 1.0 2004.03

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.

Manufactured under license from Dolby
Laboratories. “Dolby”, “Pro Logic”, and the
double-D symbol are trademarks of Dolby
Laboratories. Confidential unpublished works.
Copyright 1998-1999 Dolby Laboratories. All
rights reserved.

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

System

Laser Semiconductor laser
Signal format system NTSC/PAL

Audio characteristics

Frequency response 20 Hz to 20 kHz
Signal to noise ratio 90dB (A)
Harmonic distortion 0.03 %
Dynamic range 90dB
Wow and flutter below measurable limits

General

Outputs Audio output

Inputs Audio input

Power requirements 12 V DC
Dimensions Approx. 188 × 99 × 241 mm

Mass Approx. 2.3 kg

Operating temperature 0 ˚C to 45 ˚C

Canadian Model

Model Name Using Similar Mechanism NEW

SPECIFICATIONS

Supplied accessories Mounting straps (4)

(±0.001% W PEAK)

Monitor

System Liquid crystal color display

Video output
Optical output
Headphones output

Video input
DC 12V input

1

/2× 4 × 9 1/2 in)

(7
(w/h/d)

(5 lb 1 oz)

(32 ˚F to 113 ˚F)

Display Manual flipdown panel
Drive system TFT-LCD active matrix

Picture size 6.5 inches wide screen

Picture segment 280,800 (w 1200 × h 234)

Design and specifications are subject to change
without notice.

US Model

AEP Model

UK Model

E Model

AC power adaptor (1)
(including AC power cord
(1))
Power cord for the cigar
lighter socket (1)
Antenna for FM
transmission (1)
(US, Canadian, Mexican only)
Card remote commander
RM-X137 (including
lithium battery (1))
Carrying bag (1)
Operating Instructions (1)

system

(16:9)

dots

9-877-614-01 Sony Corporation

2004C05-1 e Vehicle Company
© 2004.03 Published by Sony Engineering Corporation

PORTABLE DVD PLAYER

MV-65ST

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

Audio CDs

MP3 files/
JPEG files

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

W

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 dam-

aged 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.

On power sources

• Use house current or car battery (12 V DC).

• For use in your house, use the AC power

adaptor supplied with the player. Do not use
any other AC power adaptor since it may
cause the player to malfunction.

Polarity of
the plug

LASER RADIATION WHEN OPEN

DO NOT STARE INTO BEAM OR

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

• Some CD-Rs/CD-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 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-R

disc to be played on the audio CD player.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 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 MANU AL OR IN SUPPLEMENTS PUB­LISHED BY SONY.

2

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM­POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

SECTION 1

SERVICING NOTES

MV-65ST

TABLE OF CONTENTS

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

2. GENERAL

Location of Controls ....................................................... 4

3. DISASSEMBLY

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

3-2. Base (Monitor) Assy ....................................................... 8

3-3. Cabinet (Front) Assy ....................................................... 8

3-4. Monitor Assy ................................................................... 9

3-5. Hinge ............................................................................... 10

3-6. MONITOR Board ........................................................... 10

3-7. Liquid Crystal Display Panel (LCD1)............................ 11

3-8. DVD MD Assy ................................................................ 11

3-9. SERVO Board, Mechanism Deck................................... 12

3-10. TD-S-Top-Cover ............................................................. 12

3-11. Loading Mechanism Assy............................................... 13

3-12. Traverse Mechanism Assy .............................................. 13

4. TEST MODE.............................................................. 14

5. ELECTRICAL ADJUSTMENTS......................... 15

6. DIAGRAMS

6-1. Block Diagram – AUDIO Section – ............................... 18

6-2. Block Diagram – VIDEO, PANEL Section –................ 19

6-3. Block Diagram – POWER Section –.............................. 20

6-4. Note for Printed Wiring Boards

and Schematic Diagrams ................................................ 21

6-5. Printed Wiring Board

– MONITOR Board (Side A) – ...................................... 22

6-6. Printed Wiring Board

– MONITOR Board (Side B) – ...................................... 23

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

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

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

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

6-11. Printed Wiring Board – KEY Board –............................ 28

6-12. Schematic Diagram – KEY Board – .............................. 29

6-13. Schematic Diagram – POWER Section (1/2) –.............. 30

6-14. Schematic Diagram – POWER Section (2/2) –.............. 31

6-15. Printed Wiring Board – POWER Board (Side A) – ....... 32

6-16. Printed Wiring Board – POWER Board (Side B) – ....... 33

6-17. Printed Wiring Board – AMP Section – ......................... 34

7. EXPLODED VIEWS

7-1. Overall Section................................................................ 46

7-2. Cabinet (Front) Section................................................... 47

7-3. Base (Monitor) Section ................................................... 48

7-4. Monitor Section............................................................... 49

7-5. Cabinet (Lower) Section-1.............................................. 50

7-6. Cabinet (Lower) Section-2.............................................. 51

7-7. Mechanism Deck Section-1 ............................................ 52

7-8. Mechanism Deck Section-2 ............................................ 53

7-9. Mechanism Deck Section-3 ............................................ 54

8. ELECTRICAL PARTS LIST ............................ 55

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.

For E model NTSC type and PAL type.

The type of an NTSC system and the type of a P AL system exist in
E model.
Please refer to the following figure about how to recognize.

– BACK VIEW –

NTSC: NTSC TYPE
PAL: PAL TYPE

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.

3

MV-65ST

Location of controls

MV-65ST

6

SECTION 2

GENERAL

D

IS

C

I

N

R

E

E

S

T

This section is extracted from
instruction manual.

9
0
qa
qs

qd

7
8

Refer to the pages listed for details.

1 Monitor
2 VOL −/+ buttons

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

3 Disc slot
4 DISC IN light

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

5 POWER (on/off) button

To turn on/off the player.

6 u (play/pause) button
7 x (stop) button
8 . (previous)/> (next) buttons
9 Receptor for the card remote

commander

q; Reverse button

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

qf
qg

qa Speakers (left/right)
qs MENU button

To make various display settings and FM
transmitter setting.

qd HEADPHONES jacks

To connect the headphones. 2 sets of
headphones can be connected.

qf Z (eject) button

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

qg RESET button

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.

4

Card remote commander RM-X137

ENTER

INPUT

POWER

SEARCH

CLEAR

SUBTITLE

ANGLE

AUDIO

SETUP

DISPLAY

123
456
7 890

TOP MENU

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 of the card
remote commander” for details on how to replace
the battery.

MV-65ST

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.

qh

(slow reverse)/y (slow forward)

buttons

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

ql SETUP buttons

Used to perform menu operations.

w; INPUT button

To select the input source.

wa VOL (−/+) buttons

To turn up or down the volume.

5

MV-65ST

This player is supplied with two types of
power cable. When you use the player in the
car, connect the player to the cigar lighter
socket; when using at home, connect it to the
AC outlet.

AUDIO/VIDEO INPUT OPTICAL OUTPUT

Two headphones

connectors

(at the side)

AUDIO/VIDEO OUTPUT

Audio/video

cable

(not supplied)

TV, etc.

Antenna for FM

transmission

(supplied)

(US, Canadian

Mexican only)

Optical cable

(not supplied)

AC power

adaptor

(supplied)

*

Power cord for the

cigar lighter socket

DC IN 12V

AC power cord

(supplied)

(supplied)

When using the

player in the car

To a digital

amplifier, etc.

To audio/video

input connectors

On AUDIO/VIDEO OUTPUT
connectors

Yo u can connect a TV to the AUDIO/VIDEO
OUTPUT connectors to output the contents
being played back on the player. Connect the
yellow plugs of the audio/video cable to the
video connectors on both the TV and the
player and connect the white plugs and the red
plugs to the white (left audio) connectors and
red (right audio) connectors respectively.

On AUDIO/VIDEO INPUT connectors

Yo u can connect a VTR, etc. to the AUDIO/
VIDEO INPUT connectors to input the
contents being played back on the device. You
can connect the device in the same way as
described on “On AUDIO/VIDEO OUTPUT
connectors” above.

To the cigar lighter socket

Notes

• When connecting the other device to the player,
be sure to connect the player to the power
source after all other connections are completed.

• If an obstacle such as cigar ash is caught inside
the cigar lighter socket, the contact between the
power cord plug and the socket becomes
incomplete and the plug may get extremely hot
during use. To avoid this, check the socket and
clean it if necessary before connecting the power
cord.

* Polarity of the plug

To a
wall

outlet

6

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

3-1. DISASSEMBLY FLOW

SET

3-2. BASE (MONITOR) ASSY

(Page 8)

MV-65ST

SECTION 3

DISASSEMBLY

3-3. CABINET (FRONT) ASSY

(Page 8)

3-8. DVD MD ASSY

(Page 11)

3-9. SERVO BOARD,

MECHANISM DECK
(Page 12)

3-10. TD-S-TOP-COVER

(Page 12)

3-11. LOADING MECHANISM

ASSY
(Page 13)

3-12. TRAVERSE MECHANISM

ASSY
(Page 13)

3-4. MONITOR ASSY

(Page 9)

3-5. HINGE

(Page 10)

3-6. MONITOR BOARD

(Page 10)

3-7. LIQUID CRYSTAL

DISPLAY PANEL (LCD1)
(Page 11)

7

MV-65ST

y

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

3-2. BASE (MONITOR) ASSY

3

two screws
(BVTP3

4

three claws

×

12)

5

2

terminal

Open the monitor

6

6

two connectors
(CN901, CN902)

7

base (monitor) ass

connector
(CN371)

6

3-3. CABINET (FRONT) ASSY

1

two screws
(BTP2.6 × 8)

2

claw

connector
(CN701)

3

1

two screws
(BVTP3

×

12)

4

2

two claws

2

claw

connector
(CN702)

8

3-4. MONITOR ASSY

3

two claws

4

front cover (hinge)

2

two screws
(P2 × 8)

1

Open the monitor.

MV-65ST

7

four screws
(PS3

×

10)

6

rear cover (hinge)

8

monitor assy

5

Close the monitor.

9

MV-65ST

s

s

3-5. HINGE

three connectors

4

(CN904, CN905, CN906)

3

rear case (LCD)

2

four claws

5

two screws
(P2 × 8)

9

LCD bracket
hinge

2

five claws

2

four claw

3-6. MONITOR BOARD

2

connector
(CN850)

6

8

six screws
(B2.6 × 4)

4

two screws
(B2 × 5)

3

four screw
(P2 × 8)

1

q;

hinge

7

It is half rotation about a hinge.

two screws
(B2 × 5)

10

1

LCD flexible board
(CN801)

5

MONITOR board

MV-65ST

s

)

3-7. LIQUID CRYSTAL DISPLAY PANEL (LCD1)

6

two retainers (LCD)

2

bracket (LCD)

1

8

sheet (insulating)

9

liquid crystal display panel (LCD1)

two screws
(BTP2 × 6)

5

four screws
(BTP2 × 6)

6

two retainers (LCD)

7

insulating sheet (B)

3

4

bracket (LCD)

two screw
(BTP2 × 6)

3-8. DVD MD ASSY

2

top case (shield)

3

5

1

three screws
(B2.6

two screws
(BVTP3

DVD MD assy

×

×

12)

6)

q;

front case (LCD) assy

1

three screws
(B2.6

×

6)

4

three screws
(CN302, CN303, CN903

3

two screws
(BVTP3

×

12)

11

MV-65ST

)

3-9. SERVO BOARD, MECHANISM DECK

6

mechanism deck

2

wire (flat type)
(CN401)

1

FFC-0.5-24 core L70
(CN301)

5

SERVO board

3

two screws
(B2.6

3-10. TD-S-TOP-COVER

2

Slide the TD-S-top-cover
in the direction of arrow
then disengage the claw and .
Hold up the TD-S-top-cover
in the direction of arrow
then disengage the claw and .

×

6)

4

three connectors
(J401, J402, J403

3

two screws

×

6)

(B2.6

1

A

B

claw

,

a

b

,

c

d

a

B

screw
(PTT2

claw

×

4)

b

A

d

claw

12

claw

c

3-11. LOADING MECHANISM ASSY

)

s

2

loading mechanism assy

1

screw
(PTT2

MV-65ST

×

4

3-12. TREVERSE MECHANISM ASSY

1

two SCW-dampers

4

damper idle

7

damper idle

5

8

traverse mechanism assy

6

damper idle

damper idle

2

two SCW-damper

3

AS-main-base

13

MV-65ST

SECTION 4

TEST MODE

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

fault 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 [RE-
SET] button.

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

Display

MV-65ST TEST MODE MENU

1. NTSC/PAL SELECT

2. FOR FACTORY

3. LCD SETTING

4. FM TRANSMITTER

5. HEAT PROTECTION

6. LOAD DEFAULT

7. SOFT RESET(EXIT)

Ver.20XX-XX-XX

Note: If initial data is not written to the EEPROM (IC402 on the MONI-

TOR 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. LOAD DEFAULT

This mode is not used in servicing.

7. 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
“7. 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

14

SECTION 5

r

r

r

r

r

r

ELECTRICAL ADJUSTMENTS

MV-65ST

1. DC/DC CONVERTER ADJUSTMENT

1-1. Frequency Adjustment

Setting:

oscilloscope

or

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 V oltage 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 V oltages Check

Setting:

MONITOR board

TP805/TP806/TP808

TP804

Procedure:

− Vdd V oltage 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 V oltage 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 V oltage 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 2.5 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:

frequency counte

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.

+
–

15

MV-65ST

r

r

e

V

V

+

–

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

4. 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

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

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

+
–

− Waveform Position Set-up Adjustment −

7. Adjust the RV802 on the MONITOR boar d so that A value of

waveform becomes −2.1 V ±0.1 V.

4.9 V ± 0.1 V

0 V

A

: – 2.1 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 CTORY” 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

1 Vp-p

0.286 V

fig. 8-1

Waveform of output signal
(TP810, TP811, TP812)

7. V-COM ADJUSTMENT

Setting:

oscilloscop

MONITOR board

TP819
TP828

Procedure:

− Voltage Set-up Adjustment −

1. Connect an oscilloscope to the TP819 and TP828 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 CTORY” 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 7.0 Vp-p ±0.1 V.

7.0 Vp-p ± 0.1

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

+

–

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 ±0.1 V.

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

16

MV-65ST

r

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 [RE-
VERSE] button.

2. Adjust by pressing the [+]/ − buttons so that the A value of
waveform (fig. 8-2) becomes 1.0 V ±0.1 V.

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] but-
ton to display “White Limit”, and press the [REVERSE] but-
ton.

2. Adjust by pressing the [+]/ − buttons so that the E value of
waveform (fig. 8-2) becomes 3.9 V ±0.1 V.

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 White Limiter Level” status, connect the oscillo-
scope 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 ±0.1 V.

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 [+]/

− buttons so that the A value of

waveform (fig. 8-2) becomes 1.0 V ±0.1 V.

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 ±0.1 V.

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 ±0.1 V.

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 2.0 V ±0.1 V.

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 dis-
play “Gamma 2”, and press the [REVERSE] button.

2. Adjust by pressing the [+]/ − buttons so that the C value of
waveform (fig. 8-2) becomes 3.2 V ±0.1 V.

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 display “VCO Free Run”, and press
the [REVERSE] button.

3. Adjust by pressing the [+]/

− buttons so that the value of fre-

quency 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 vertical posi-
tion 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:

– MONITOR BOARD (SIDE A) –

RV601

RV802

– MONITOR BOARD (SIDE B) –

TP853

TP854

TP802

TP952 (+)

TP951 (

−

)

TP808

TP807

RV803

TP954

TP953

RV801

TP804
TP805

TP806

TP403

TP602

TP405

TP601

TP819

TP513

TP510

TP810

TP811

TP812

TP506

TP828

1717

MV-65ST

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – AUDIO Section –

J301 (1/2)

VIDEO

R-CH

DIFFERENTIAL

R-CH

AMP

IC301

INPUT

OPTICAL
OUTPUT

L

AUDIO

R

OPTICAL

TRANSCEIVER

DVD MECHANISM

DECK BLOCK

AUDIO-DL

AUDIO-DR

J302

SPDIF

CVBS

VIDEO/AUDIO SELECT

IC302

3 VIN1

8 LIN1

1

7 LIN2

VOUT2

VIN2

SW22SW1

9

CVBS

J301 (2/2)

VIDEO

BUFFER AMP

IC305

R-CH

MUTING

Q102

R-CH

(US, Canadian, Mexican)

15

11LOUT2

14VOUT1

10LOUT1

R-CH

22

1

LIN

RIN

14 13

MPX ADJ

XIN

X301

7.6MHz

L

R

5

XOUT

OUTPUT

AUDIO

BUFFER AMP

Q305, 306

FM STEREO

TRANSMITTER

IC306

A

VTIN

9

PD

7

17

LEVEL SHIFT

Q307 – 310

(Page 19)

RF OUT

DATA16CLK15CE

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

• SIGNAL PATH
: DVD (VIDEO)

: DVD (AUDIO)

: DIGITAL OUT

: INPUT (VIDEO)

: INPUT (AUDIO)

CN304

TRANSMIT

11

ATT

18

BPF

FL301

XMD

XMC

+8V
+5V

+3.3V

VFD-CS

TEMP

B+8V
B+5V
U-COM +3.3V

ELECTRICAL VOLUME

IC303

8

LIN1

LOUT1

CLK4DATA

5

FM-DATA

FM-CLK

FM-CE

L/R INVERSE

IC304

1

11 IN4

Q301

IN1

3 IN2

8 IN3

CONT1

5

13

L/R INVERSE

SWITCH

D309

7

R-CH

OUT1

10OUT4

CONT3

CONT212CONT4

6

Q302

D303

2
4OUT2

9OUT3

R-CH

(US, Canadian, Mexican)

BUFFER

Q201

MUTING

Q171

MUTING

SWITCH

Q315

POWER ON

MUTING

Q316, 317

R-CH

MUTING
CONTROL
Q313, 314

POWER AMP

IC371

STANDBY

SWITCH

Q371, 372

R-CH

POWER ON

SP1

(L)

SP2

(R)

J371

2

HEADPHONE

J372

1

(Page 20)

B

UD

(Page 19)

C

15

16

DA (IN)-BE

17

18

33

CK-BE

CS-BE

DA (OUT)-BE

TEMP

FM-CE

FM-CLK

FM-DATA

6

63

SW1

7

S-SDA

S-SCL

SYSTEM CONTROLLER

IC401 (1/3)

54

U/D

4

3

FM-DATA

5

FM-CE

FM-CLK

53

AMUTE

64

H/P DET

1818

6-2. BLOCK DIAGRAM – VIDEO, PANNEL Section –

TRAP

IC501

BUFFER

Q501

PAL/NTSC SWITCH

(Page 18)

X502

X501

4.43MHz

3.58MHz

63

64

VXO-PAL

VXO-NTSC

CVBS

A

SYNC

SEPARATOR

Q502, 503

YIN

52

57

46

CTRAPOUT

CIN

CSYNCIN

CSYNCOUT

V-SDA48V-SCK47HSYNCLOCK

HDOUT
VDOUT

39

SYNC DET
Q505, 506

53

RGB DECODER

34

32
31

54

35

Q504

CTRAPIN

VDIN

MV-65ST

LIQUID CRYSTAL

DISPLAY MODULE

LCD1

V COM AMP

IC802

28

VCOMOUT

26

R-OUT

21

G-OUT

19

B-OUT

14

R-IN2

15

G-IN2

16

B-IN2

17

YS

BLAK36POL

18

BLAK

HD

POL

VD

R

G

B

OSD DRIVER

IC405

16

VR
17 VG
18 VB

15 BLK

20 HSYNCN
19 YSYNCN

3

DATA

OSC OUT

SCLK2CSN

DATA

1

CLK

7

OSC

8OSC IN

PHASE

COMPARATOR

IC602

RV601

CS

PLL

Q601

HD
VD
BLAK
POL

33

36 VCO1
37 VCO0

2 HSYNCIN
5 VDBIN
8 BLACK

14 POL

46 NP

LCD CONTROLLER

PD

QHSEL31JUST13UD

CPHSEL

4

3

V COM BIAS

Q803 – 807

IC601

LTBOX

12

STV1

20
26STV2
23STH1
24STH2

29CPH1
27CPH2
25CPH3
16CPV

19OEV1
18OEV2
17OEV3
21OEH

28L/R

RV802
V-COM

R

G

B

Q603

VCOM
VCOM

RED

GREEN

BLUE

STV1
STV2
STH1
STH2

CPH1
CPH2
CPH3
CPV

OEV1
OEV2
OEV3
OEH

L/R

UD

VHG

VDD1

VCC

VEE

VHG +17V
VDD +3.3V
VCC +5V

VB

VSS –13V

51

52

V-SCK

V-SDA

8

LED DRIVE

Q953, 954

D703

DISC IN

DISC_LED

21

SYNC-DET

KEY IN

27

S401 – 404

UD

(Page 18)

C

CS

CLK

DATA

57

59

61

SDA13SCL

14

6

SCL

SDA

58

SIDE2

SIDE1

ZOOM

X1

41 40

X401

4.19MHz

JUST

43

VD

SYSTEM CONTROLLER

IC401 (2/3)

KEY DVD

28

S701 – 704

S706

Z

29

KEY EJ

KEY PW

30

D403

D402

S705

POWER

20

19

OSD DATA

WAKE UP

SWITCH

Q401, 403

22

OSD CSN

OSD SCLK

44

KEY HALT

SIRCS BUFFER

REMOTE CONTROL

RECEIVER

23

N/P

REM HALT45REM IN

47

Q460

IC404

5

EEPROM

IC402

55

LR

X2

• SIGNAL PATH
: DVD (VIDEO)

: DVD (AUDIO)

1919

MV-65ST

6-3. BLOCK DIAGRAM – POWER Section –

SYSTEM CONTROLLER

IC401 (3/3)

RESET

PW-IN

PW DET

FM-ON

DIMMER

TFT ON

PW-ON

36

46

32

(US, Canadian, Mexican)

49

60

56

2

LED DRIVE

Q955, 956

BACK LIGHT

D702

POWER

VSS –13V

VGH +17V

VCC +5V

VDD +3.3V

RV803

5V

VOLTAGE

(DC/DC CONVERTER)

RV801

FREQUENCY

(DC/DC CONVERTER)

UNIT

INVERTER

TRANSFORMER

T850

D852, 853

D801

D802

D803

D804

POWER CONTROL

3

1IN+

2RT

OSC

Q857, 858

POWER CONTROL

1IN+

1

DC/DC

CONVERTER

T801

IC801

IC850

VCC +7.5V

71OUT

DIMMER

Q860, 861

162IN+

11

C2

12VCC

DC/DC

CONVERTER

Q801, 802

D950

SWITCHING

REGULATOR

Q855, 856, 859

B+ SWITCH

Q853, 854

+8V

REGULATOR

IC950

VCC

Q402

S707

RESET

B+ SWITCH

Q951, 952

RESET SIGNAL

GENERATOR

IC403

FM +5V

(US, Canadian, Mexican)

U-COM +3.3V

E-VOL +5V

IC305 B+

REGULATOR

IC307

D905

D908, 909

D904

D906, 907

DEAD TIME

DEAD TIME

LATCH

+5V

Q913

Q914

Q911

REGULATOR

BATTERY

DETECT

Q404

REGULATOR

REGULATOR

Q303, 304

B+ SWITCH

Q311, 312

+

SWITCHING

Q912

+3.3V

IC952

PANEL +5V

+5V

IC308

B+8V

B+5V

POWER CONTROL

OUT2

12

7 OUT1

11 DT2

6 DT1

15 SCP

D404

REGULATOR

CONTROL
Q902, 903

REGULATOR

CONTROL
Q905, 906

IC901

VCC

+5V

REGULATOR

IC951

SWITCHING

REGULATOR

Q901

SWITCHING

REGULATOR

Q904

B+ SWITCH

9

Q907, 908

BATT

J901

–

DC IN 12V

+

(Page 18)

B

POWER ON

2020