Sony TRINITRON KV-1499M7J Manual de usuario

MODEL COMMANDER DEST. CHASSIS NO.

KV-1499M7J

RM-952 ME SCC-U30L-A

MODEL COMMANDER DEST. CHASSIS NO.

CHASSIS

TRINITRON

COLOR TV

SERVICE MANUAL BG-3S

– 2 –

KV-1499M7J

RM-952

SPECIFICATIONS

Note

Power requirements 110-240 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

IVHF: B2 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 to A13 / 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 3W + 3W

Number of terminal

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

≥(Audio) Input: 2 Output: 1 Phono jacks; 500 mVrms

@(Earphone) Output: 1 Minijack

Picture tube 14 inch

Tube size (cm) 37 Measured diagonally

Screen size (cm) 34 Measured diagonally

Dimension (w/h/d, mm) 466 ×341 ×416

Mass (kg) 14

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 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 CIRCUITTHE 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-1499M7J

RM-952

TABLE OF CONTENTS

Section Title Page

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

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

2. DISASSEMBLY

2-1. Rear Cover Removal................................................ 18

2-2. Chassis Assy Removal ............................................. 18

2-3. F Bracket Removal .................................................. 18

2-4. Service Position ....................................................... 18

2-5. Replacement of Parts ............................................... 19

2-5-1. Replacement of Control Button ....................... 19

2-5-2. Replacement of Light Guide ............................ 19

2-6. Terminal Bracket Removal ...................................... 19

2-7. Degauss Coil Removal............................................. 19

2-8. Picture Tube Removal.............................................. 20

3. SET-UP ADJUSTMENTS

3-1. Beam Landing.......................................................... 21

3-2. Convergence............................................................. 22

3-3. Focus Adjustment .................................................... 24

3-4. G2 (Screen) and White Balance Adjustments ......... 24

4. CIRCUIT ADJUSTMENT

4-1. Adjustments with Commander ................................ 25

4-2. Adjustment Method ................................................. 26

4-3. Picture Quality Adjustments.................................... 31

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

Replacement............................................................. 31

4-5. Picture Distortion Adjustment ................................. 32

Section Title Page

5. DIAGRAMS

5-1. Block Diagram ......................................................... 35

5-2. Frame Schematic Diagram ...................................... 38

5-3 Circuit Boards Location .......................................... 40

5-4. Schematic Diagrams and Printed Wiring Boards ... 41

(1) Schematic Diagram of A (1/2) Board...................... 43

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

(3) Schematic Diagrams of C3 and F Boards ............... 54

5-5. Semiconductors........................................................ 59

6. EXPLODEDVIEW

6-1. Chassis ..................................................................... 62

7. ELECTRICAL PARTS LIST ...................................... 64

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KV-1499M7J

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. DIAGNOSTICTEST 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

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 F4601

(F)

• H.OUT Q511 is shorted. (A

board)

• -13V is not supplied. (A

board)

• IC 503 faulty (A board)

• IC 301 faulty ( A board)

• G2 is improperly adjusted.

(Note 2)

• CRT problem.

• IC301 is faulty. (A board)

• No connection A board to

C3 board.

• Discharge CRT (C3 Board)

• Static discharge

• External noise

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

– 5 –

KV-1499M7J

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

– 6 –

KV-1499M7J

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.

– 7 –

KV-1499M7J

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.

[White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 C3

[V] Q509/507

IC001

SYSTEM IC003

MEMORY

B-DAT

IO-SDAT

IK-IN

MP/

PROTECT

IO-8DAT

O-LED

SDA

54521

18 51

4635

– 8 –

KV-1499M7J

RM-952

WARNING

• Dangerously high voltages are present inside the TV.

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

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.

Do not pull the power cord to disconnect the TV.

Pull it out by the plug.

Disconnect the power cord during lightning

storms or if you are not going to use the TV 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.

Clean 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.

Using Your New TV

VIDEO

VIDEO IN

VIDEO OUT

AUDIO

Getting Started

Step 1

Connect the antenna

If you wish to connect a VCR, see the “Connecting a VCR” diagram below.

Using Your New TV

IEC connector

(not supplied)

To video and

audio outputs

VCR

(yellow)

(black)

Antenna cable (not supplied)

To …1

(video input)

Audio/Video cable

(not supplied)

: Signal flow

To antenna

output

Antenna cable

(not supplied)

Rear of TV

Connecting a VCR

To watch the video, press …(see page 11).

To ˘

(antenna)

: Signal flow

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.

– 9 –

KV-1499M7J

RM-952

Using Your New TV

VHF LOW B/G

Notes

• If you connect a stereo VCR, connect the yellow plug to (the yellow

jack) and the white plug to (the black jack).

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

output from the VCR to the program number 0 on the TV.

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

becomes blue.

Front of TV

Step 2

Note

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

Step 3

Preset the channels automatically

Tips

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

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

channel, then preset your TV manually (see page 8).

Note (KV-1499M70/1499M7J only)

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

“I”, “D/K” or “M” for the TV system (TV SYS).

Now You Are Ready. . .

To watch your TV, see page 10.

CAUTION

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.

Insert the batteries

into the remote

Using Your New TV

Connecting optional components

You can connect optional video components, such as a VCR, multi disc player,

camcorder or video game.

To watch the picture of the connected equipment, press …(see page 11).

Connecting a camcorder/video game equipment

using the …(video input) jacks

Note

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

the rear of your TV.

Connecting video equipment using the Ú

(monitor output) jacks

Note

• When connecting a stereo VCR, connect the yellow plug to (the yellow

jack) and the white plug to (the black jack).

Front of TV

Camcorder

Video game

equipment

To video and

audio outputs

(yellow)

(black)

Rear of TV

antenna

output

To video and

audio inputs

VCR

: Signal flow

…

(video input)

To Ú

(monitor

output)

Audio/Video cable (not supplied)

Antenna cable (not supplied)

Audio/Video cable

(not supplied)

– 10 –

KV-1499M7J

RM-952

Using Your New TV

Presetting channels (continued)

Press SELECT until

“MANUAL PROGRAM”

appears.

Press + or –.

Press PROGR +/– or the

number buttons until the

desired program number

appears.

Press + or – until the

desired channel picture

appears.

Press SELECT.

To change the TV system setting (KV-1499M70/1499M7J only)

If the picture or sound is abnormal when receiving programs through the

(antenna)

terminal

(1) Press SELECT until “TV SYS” appears.

(2) Press + or – to select the appropriate TV system until the picture or sound quality

is optimal.

Presetting channels manually

123

456

-/--

PROGR

B/G I D/K M

TV SYS: B/G

MANUAL PROGRAM

SELECT

VHF LOW B/G

SELECT

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 automatically

Press Uto turn on the TV.

Press AUTO PROGR.

Note (KV-1499M70/1499M7J only)

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

“I”, “D/K” or “M” for the TV system (TV SYS).

To preset channels automatically from a specified program

number

(1) Press SELECT 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 –.

Number buttons

SELECT

.+/–

PROGR +/–

+ or –

PIC MODE

123

789

÷ 0

JUMP

SOUND

MODE

FAVORITE

PROGRÁ

VHF LOW B/G

AUTO

PROGR

continued

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