Sony Trinitron KV-XG29N90 Manuel utilisateur

http://cxema.ru

MODEL COMMANDER DEST. CHASSIS NO.

KV-XG29N90 RM-915 Taiwan SCC-P13K-A

MODEL COMMANDER DEST. CHASSIS NO.

CHASSIS

TRINITRON

COLOR TV

SERVICE MANUAL BG-3S

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KV-XG29N90

RM-915

SPECIFICATIONS

Note

Po er requirements 110 V AC, 60 Hz

Po er consumption (W) Indicated on the rear of the TV

Television system M

Color system PAL*, PAL 60*, SECAM*, NTSC4 43*, NTSC3 58 * AV IN only

Stereo/ Bilingual system MTS

Channel coverage

VHF : 2 to 13

UHF : 14 to 69

CATV : 1 to 125

˘˘

˘(Antenna) 75-ohm external terminal

Audio output 5W + 5W

Number of terminal

D(Video) Input: 3* Output: 1 Phono jacks; 1 VP-P, 75 ohms * Two input lines available

≥Audio Input: 3* Output: 1 Phono jacks; 500 mVrms * Two input lines available

2(Headphone) Output: 1 Minijack

Picture tube 29 inch

Tube size (cm) 72 Measured diagonally

Screen size (cm) 68 Measured diagonally

Dimension ( /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, EXPLODED VIEWS AND IN THE

PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE

THESE COMPONENTS WITH SONY PARTS WHOSE PART

NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN

SUPPLEMENTS PUBLISHED BY SONY.

CAUTION

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE

ANODE CAP TO THE METAL CHASSIS, CRT SHIELD, OR

CARBON PAINTED ON THE CRT, AFTER REMOVING THE

ANODE.

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KV-XG29N90

RM-915

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 37

5-2 Frame Schematic Diagram 40

5-3 Circuit Boards Location 43

5-4 Schematic Diagrams and Printed Wiring Boards 44

(1) Schematic Diagram of A (1/2) Board 47

(2) Schematic Diagrams of A (2/2) and D3 Boards 51

(3) Schematic Diagram of C6 Board 57

(4) Schematic Diagrams of H2 and VM1 Boards 59

(5) Schematic Diagram of B6 Board 67

5-5 Semiconductors 70

6. EXPLODED VIEWS

6-1 Speaker Bracket 73

6-2 Chassis 74

6-3 Picture Tube 75

7. ELECTRICAL PARTS LIST 76

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KV-XG29N90

RM-915

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)

• IC1800 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 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-XG29N90

RM-915

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. STOPPING THE 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.

STANDBY/SLEEP lamp

Lamp ON 0.3 sec.

Lamp OFF 3 sec.

Lamp OFF 0.3 sec.

2 times

5 times

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KV-XG29N90

RM-915

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

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.

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

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KV-XG29N90

RM-915

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-XG29N90

RM-915

2-4. SERVICE POSITION

(Note: Remove F Bracket first.)

SECTION 2

DISASSEMBLY

2-3. CHASSIS ASSY REMOVAL

2-2. SPEAKER REMOVAL

2-1. REAR COVER REMOVAL

2 Eight screws

(+BVTP 4 × 16)

3 Three screws

(+BVTP 4 × 16)

1 Rear cover

1 Eight screws

(+BVTP 4 × 16)

3 Four screws

(+BVTP 3 × 16)

2 Bracket, speaker

1 Chassis assy

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KV-XG29N90

RM-915

2-7. TERMINAL BRACKET REMOVAL

2-5-2. REPLACEMENT OF LIGHT GUIDE

2-5. REPLACEMENT OF PARTS

For replacement of the Control Button and Light Guide, unscrew them, exchange

with the new parts, and fix them with screws (+BVTP) respectively.

2-5-1. REPLACEMENT OF CONTROL BUTTON

2-6. D3 BOARD REMOVAL

Control button

Two screws

(+BVTP 3 × 12)

One screw

(+BVTP 3 × 12)

1 Three connectors

2One claw

3 D3 board

3 Two claws

4 Terminal bracket

1 Two screws

(+ BVTP 3 × 12)

2 One screw

(+ BVTP 4 × 16)

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KV-XG29N90

RM-915

2-9. A AND B6 BOARDS REMOVAL

2-8. H2 BOARD REMOVAL

3 Two connectors

4 One screw (+BVTAP 3 × 12)

1 Two connectors

4 Four claws

5 H2 Board 2 Two connectors

4 B6 Board

5 A Board

1 Two screws

(+BVTAP 3 × 12)

2 Two screws

(+BVTAP 3 × 12)

2-10 PICTURE TUBE REMOVAL

Note: The picture tube for New Zealand model is upside down,

and the position for anode cap and tension spring are changed

accordingly.

!Four DGC clips

!ª Degaussing coil

0Four claws

1Four screws

(+BVTP 3 × 16)

2Speaker Bracket

assy (L)

5Speaker Bracket

assy (R)

!¢ Two screws

(Tapping)

6Chassis assy

9Deflection

yoke

8Neck assy

7C6 board

5Anode cap

!Picture tube Cushion

!¢ Two screws

(Tapping)

!£ Tension

spring

3Eight screws

(+BVTP 4 × 16)

4Eight screws

(+BVTP 4 × 16)

6Four screws

(+BVTP 3 × 16)

DGC holder

Cushion (50 × 550)

DGC

Cushion (50 × 550)

DGC

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