Sony Trinitron KV-XG29M8J Manuel utilisateur

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CHASSIS

TRINITRON

COLOR TV

SERVICE MANUAL BG-3S

MODEL COMMANDER DEST. CHASSIS NO.

KV-XG29M8J RM-952 ME SCC-U30V-A

MODEL COMMANDER DEST. CHASSIS NO.

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KV-XG29M8J

RM-952

KV-XG29M8J

RM-952

SPECIFICATIONS

Note

Power requirements 110-220 V AC, 50/60 Hz

Power consumption (W) Indicated on the rear of the TV

Television system B/G, I, D/K, M

Color system PAL, PAL 60, SECAM, NTSC4.43, NTSC3.58

Channel coverage

B/G VHF : E2 to E12

UHF : E21 to E69

CATV : S01 to S03, S1 to S41

IUHF : B21 to B68

CATV : S01 to S03, S1 to S41

D/K VHF : C1 to C12, R1 to R12

UHF : C13 to C57, R21 to R60

CATV: S01 to S03, S1 to S41, Z1 to Z39

MVHF : A2 toA13

UHF : A14 to A79

CATV :A-8 to A-2, A to W+4, W+6 to W+84

˘˘

˘(Antenna) 75-ohm external terminal

Audio output 5W + 5W

Number of terminal

(Video) Input: 2 Output: 1 Phono jacks; 1 VP-P, 75 ohms

Audio Input: 2 Output: 1 Phono jacks; 500 mVrms

2(Headphone) Output: 1 Minijack

Picture tube 29 inch

Tube size (cm) 72 Measured diagonally

Screen size (cm) 68 Measured diagonally

Dimension (w/h/d, mm) 794 ×573 ×517

Mass (kg) 48

Design and specifications are subject to change without notice.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK !ON

THE SCHEMATIC DIAGRAMS,EXPLODEDVIEWS AND INTHE

PARTS LIST ARE CRITICALTO SAFE OPERATION. REPLACE

THESE COMPONENTS WITH SONY PARTS WHOSE PART

NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN

SUPPLEMENTS PUBLISHED BY SONY.

CAUTION

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND

THE ANODE CAPTOTHE METAL CHASSIS, CRT SHIELD, OR

CARBON PAINTED ON THE CRT, AFTER REMOVING THE

ANODE.

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KV-XG29M8J

RM-952

TABLE OF CONTENTS

Section Title Page

SELF DIAGNOSIS FUNCTION................................ 4

1. GENERAL........................................................................ 8

2. DISASSEMBLY

2-1. Rear Cover Removal................................................ 19

2-2. Speaker Removal ..................................................... 19

2-3. Chassis Assy Removal ............................................. 19

2-4. Service Position ....................................................... 19

2-5. Replacement of Parts ............................................... 20

2-5-1. Replacement of Control Button ..................................... 20

2-5-2. Replacement of Light Guide .......................................... 20

2-6. D3 Board Removal .................................................. 20

2-7. Terminal Bracket Removal ...................................... 20

2-8. H2 Board Removal .................................................. 21

2-9. A and B6 Boards Removal ...................................... 21

2-10. Picture Tube Removal.............................................. 21

3. SET-UP ADJUSTMENTS

3-1. Beam Landing .......................................................... 23

3-2. Convergence............................................................. 24

3-3. Focus Adjustment .................................................... 26

3-4. G2 (Screen) and White Balance Adjustments......... 27

4. CIRCUIT ADJUSTMENT

4-1. Adjustments with Commander ................................ 28

4-2. Adjustment Method ................................................. 29

4-3. Picture Quality Adjustments.................................... 34

4-4. A Board Adjustment After IC003 (Memory)

Replacement............................................................. 34

4-5. Picture Distortion Adjustment ................................. 35

Section Title Page

5. DIAGRAMS

5-1. Block Diagram ......................................................... 39

5-2. Frame Schematic Diagram ...................................... 42

5-3 Circuit Boards Location .......................................... 45

5-4. Schematic Diagrams and Printed Wiring Boards ... 46

(1) Schematic Diagram of A (1/2) Board...................... 49

(2) Schematic Diagrams of A (2/2) and D3 Boards ..... 53

(3) Schematic Diagram of C6 Board ............................... 59

(4) Schematic Diagrams of VM1 and H2 Boards ......... 63

(5) Schematic Diagrams of B2 and B6 Boards............. 67

5-5. Semiconductors........................................................ 71

6. EXPLODEDVIEWS

6-1. Speaker Bracket ....................................................... 74

6-2. Chassis ..................................................................... 75

6-3. Picture Tube ............................................................. 76

7. ELECTRICAL PARTS LIST....................................... 77

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KV-XG29M8J

RM-952

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER lamp will automatically

begin to flash.

The number of times the lamp flashes translates to a probable source of the problem.A definition of the STANDBY/TIMER

lamp flash indicators is listed in the instruction manual for the user’s knowledge and reference. If an error symptom cannot

be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past

problems and how often these problems occur.

1. DIAGNOSTIC TEST INDICATORS

When an errors occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the

problem. If there is more than one error, the lamp will identify the first of the problem areas.

Result for all of the following diagnostic items are displayed on screen. No error has occured if the screen displays a “0”.

Diagnostic

Item

Description

• Power does not

turn on

• +B overcurrent

(OCP) or

overvoltage

(OVP)

• Vertical deflection

stopped

• Horizontal

deflection

overdrive

• White balance

failure (no

PICTURE)

• Micro reset

Detected

Symptoms

• Power does not come on.

• No power is supplied to the

TV.

• AC power supply is faulty.

• Power does not come on.

• Load on power line is

shorted.

• Has entered standby state

after horizontal raster.

• Vertical deflection pulse is

stopped.

• Power line is shorted or

power supply is stopped.

• No raster is generated.

• CRT cathode current

detection reference pulse

output is small.

• Power is shut down shortly,

after this return back to

normal.

• Detect Micro latch up.

Note 1: If a + B overcurrent is detected, stoppage of the vertical deflection is detected simultaneously.

The symptom that is diagnosed first by the microcontroller is displayed on the screen.

Note 2: Refer to screen (G2) Adjustment in section 3-4 of this manual.

SELF DIAGNOSTIC FUNCTION

No. of times

STANDBY/TIMER

lamp flashes

Does not light

2 times

5 times

—

Self-diagnostic

display/Diagnostic

result

—

002:000 or

002:001~255

003:001~255

004:001~255

at the same time

005:000 or

005:001~225

101:00 or

101:001~225

Probable

Cause

Location

• Power cord is not plugged

in.

• Fuse is burned out F8601

(B6)

• H.OUT Q511 is shorted.(A

board)

• IC701 is shorted. (C6 board)

• -13V is not supplied. (A

board)

• IC 503 faulty (A board)

• G2 is improperly adjusted.

(Note 2)

• CRT problem.

• Video OUT IC701 is faulty.

(C6 board)

• IC301 is faulty. (A board)

• No connection A board to

C6 board.

• Discharge CRT (C6 Board)

• Static discharge

• External noise

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KV-XG29M8J

RM-952

2. DISPLAY OF STANDBY/TIMER LIGHT FLASH COUNT

Diagnostic Item Flash Count*

+B overcurrent/overvoltage 2 times

Vertical deflection stopped

White balance failure 5 times

* One flash count is not used for self-diagnostic.

3. STOPPINGTHE STANDBY/TIMER FLASH

Turn off the power switch on the TV main unit or unplug the power cord from the outlet to stop the STANDBY/TIMER lamp

from flashing.

Lamp ON 0.3 sec. Lamp OFF 3 sec.

Lamp OFF 0.3 sec.

2 times

5 times

STANDBY/SLEEP lamp

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KV-XG29M8J

RM-952

4. SELF-DIAGNOSTIC SCREEN DISPLAY

For errors with symptoms such as “power sometimes shuts off” or “screen sometimes goes out” that cannot be confirmed, it

is possible to bring up past occurances of failure for confirmation on the screen:

[To Bring Up Screen Test]

In standby mode, press buttons on the remote commander sequentially in rapid succession as shown below:

[Screendisplay] /channel [5] /Sound volume [-] /Power ON

Note that this differs from entering the service mode (mode volume [+]).

Self-Diagnosis screen display

002 : 000

003 : 000

004 : 000

005 : 001

Numeral "0" means that no fault has been detected.

Numeral "1" means a fault has been detected.

101 : 000

SELF DIAGNOSTIC

5. HANDLING OF SELF-DIAGNOSTIC SCREEN DISPLAY

Since the diagnostic results displayed on the screen are not automatically cleared, always check the self-diagnostic screen

during repairs. When you have completed the repairs, clear the result display to “0”.

Unless the result display is cleared to “0”, the self-diagnostic function will not be able to detect subsequent faults after

completion of the repairs.

[Clearing the result display]

To clear the result display to “0”, press buttons on the remote commander sequentially as shown below when the diagnostic

screen is being displayed.

Channel [8] /0

[Quitting Self-diagnostic screen]

To quit the entire self-diagnostic screen, turn off the power switch on the remote commander or the main unit.

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KV-XG29M8J

RM-952

6. SELF-DIAGNOSTIC CIRCUIT

[+BovercurrentªOCPº] Occurs when an overcurrent on the +B(135) line is detected by Q604. If Q604 go to ON

and the voltage to pin 18 of IC301 should go down when V.SYNC is more than seven

verticals in a period, the unit will automatically turn off.

[Verticaldeflectionstopped] Occurs when an absence of the vertical deflection pulse is detected by Q509 and IC001

shut down the power supply.

[Verticaldeflectionovercurrent] Occurs when an overcurrent on V drive line is detected by Q507. Power supply will be

shut down when detect this by IC001.

[ hitebalancefailure] If the RGB levels* do not balance or become low level within 5 seconds, this error will be

detected by IC301.TV will stay on, but there will be no picture.

* (Refers to the RGB levels of the AKB detection Ref pulse that detects IK.)

IC301

Y/CHROMA JUNGLE

FROM

CRT

FROM

[+B] Q604 C6

[V] Q509/507

IC001

SYSTEM IC003

MEMORY

B-DAT

IO-SDAT

IK-IN

MP/

PROTECT

IO-8DAT

O-LED

SDA

54521

18 51

4635

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KV-XG29M8J

RM-952

SECTION 1

GENERAL

The operating instructions mentioned here are partial abstracts

from the Operating Instruction Manual. The page numbers of

the Operating Instruction Manual remain as in the manual.

WARNING

• Dangerously high voltages are present inside the TV.

• Operate the TV only between 110 – 240 V A .

To prevent fire or shock hazard, do not expose

the TV to rain or moisture.

Do not operate the TV if any liquid or solid object

falls into it. Have it checked immediately by

qualified personnel only.

Do not open the cabinet and the rear cover of the

TV. Refer servicing to qualified personnel.

Do not install the TV in hot, humid or excessively

dusty places.

Do not install the TV in a confined space, such

as a bookcase or built-in cabinet.

Do not block the ventilation openings of the TV.

Pull the power cord out by the plug. Do not pull

the power cord itself. Disconnect the TV if you

are not going to use it for several days.

Install the TV in a stable position. Do not allow

children to climb onto it.

Do not plug in too many appliances to the same

power socket. Do not damage the power cord.

lean the TV with a dry and soft cloth.

Do not use benzine, thinner, or any other chemicals

to clean the TV. Do not scratch the picture tube.

For your own safety, do not touch any part of the

TV, the power cord and the antenna cable during

lightning storms.

Using Your New TV

Getting Started

Step 1

Connect the antenna

If you wish to connect a V R, see the “ onnecting a V R” diagram below.

Using Your New TV

IEC connector (not supplied)

To video and

audio outputs

VCR

(yellow)

-L (MONO)

(white)

-R (red)

ntenna cable (not supplied)

udio/Video cable (not supplied)

To antenna

output

Rear of TV

Connecting a VCR

To watch the video, press … (see page 12).

: Signal flow

VIDEO

VIDEO IN

VIDEO OUT

AUDIO

To ˘

(antenna)

To … 1 or 2

(video input)

: Signal flow

C UTION

Do not connect the power cord until you have completed making all other

connections; otherwise a minimum leakage current might flow through the antenna

and other terminals to ground.

ntenna cable (not supplied)

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KV-XG29M8J

RM-952

Using Your New TV

AUTO

PROGR

VHF LOW B/G

Notes

• If you connect a monaural V R, connect the yellow plug to (the

yellow jack) and the black plug to -L (MONO) (the white jack).

• If you connect a V R to the ˘ (antenna) terminal, preset the signal

output from the V R to the program number 0 on the TV.

• Do not connect video equipment to the … 2 (video input) jacks at the

front and the rear of your TV at the same time; otherwise the picture will

not be displayed properly on the screen.

• When no signal is input to the connected video equipment, the TV screen

becomes blue.

Step 2

Insert the batteries

into the re ote

Note

• Do not use old batteries nor use different types of batteries together.

Step 3

Preset the channels auto atically

Tips

• If you want to stop automatic channel presetting, press SELE T twice.

• If your TV has preset an unwanted channel or cannot preset a particular

channel, then preset your TV manually (see page 9).

Note

• During automatic channel presetting, your TV screen will indicate “B/G”,

“I”, “D/K” or “M” for the TV system.

Front of TV

Using Your New TV

Connecting optional co ponents

You can connect optional audio/video components, such as a V R, multi disc player,

camcorder, video game or stereo system.

To watch the picture of the connected equipment, press … (see page 12).

Connecting a ca corder/video ga e equip ent

using the … (video input) jacks

Notes

• You can also connect video equipment to the … 1 or 2 (video input) jacks

at the rear of your TV.

• Do not connect video equipment to the … 2 (video input) jacks at the

front and the rear of your TV at the same time; otherwise the picture will

not be displayed properly on the screen.

Connecting audio/video equip ent using the Ú

( onitor output) jacks

Note

• When connecting a monaural V R, connect the yellow plug to (the

yellow jack) and the black plug to -L (MONO) (the white jack).

(MONO)

Front of TV

Camcorder

Video game

equipment

To video and

audio outputs

(yellow)

-L (MONO)

(white)

-R (red)

Rear of TV

antenna

output

To video and

audio inputs

udio system

audio

inputs

VCR

: Signal flow

…

(video input)

To Ú

(monitor

output)

udio/Video cable (not supplied)

ntenna cable (not supplied)

udio/Video cable

(not supplied)

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KV-XG29M8J

RM-952

Using Your New TV

Presetting

channels

You can preset up to 100 TV channels in

numerical sequence from program

number 1 using the remote and the

buttons on your TV as well.

Presetting channels auto atically

Press U to turn on the TV.

Press AUTO PROGR.

Note

• During automatic channel presetting, your TV screen will indicate “B/G”,

“I”, “D/K” or “M” for the TV system.

To preset channels automatically from a specified program number

(1) Press SELE T until “AUTO PROGRAM” appears.

(2) Press + or –.

The on-screen display will start flashing.

(3) Press PROGR +/– or the number buttons until the desired program number

appears.

(4) Press + or –.

123

789

÷0

JUMP

SOUND

MODE

FAVORITE

PROGR

Number buttons

SELECT

. +/–

PROGR +/–

+ or –

PIC MODE

VHF LOW B/G

AUTO

PROGR

Using Your New TV

Securing the TV

To prevent the TV from falling, secure the TV using one of the following methods:

With the supp ied screws, attach the band to the TV stand and to the rear of

the TV using the provided ho e.

Put the cord or chain through the c amps to secure the TV against a wa or

pi ar.

Note

• Use only the supplied screws. Use of other screws may damage the TV.

3.8 mm

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