Sony Trinitron KV-PF14DK7 Bedienungsanleitung

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MODEL COMMANDER DEST. CHASSIS NO.

KV-PF14DK7 RM-952 ME SCC-U30H-A

KV-PF14L70 RM-952 ME SCC-U30M-A

KV-PF14M40 RM-952 GE SCC-U12Q-A

KV-PF14M70 RM-952 E SCC-U13J-A

KV-PF14M70 RM-952 Hong Kong SCC-U17K-A

MODEL COMMANDER DEST. CHASSIS NO.

KV-PF14M70 RM-952 ME SCC-U30K-A

KV-PF14P10 RM-952 OCE SCC-U2AE-A

KV-PF14P70 RM-952 E SCC-U13G-A

KV-PF14Q70 RM-952 E SCC-U13K-A

KV-PF14Q70 RM-952 ME SCC-U30F-A

CHASSIS

TRINITRON

COLOR TV

SERVICE MANUAL BG-3S

Self Diagnosis

Supported model

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KV-PF14P10/PF14P70/PF14Q70 RM-952

SPECIFICATIONS

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.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK !ONTHE

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. CIRCUIT ADJUSTMENTS THAT ARE

CRITICAL TO SAFE OPERATION ARE IDENTIFIED IN THIS

MANUAL.FOLLOW THESEPROCEDURESWHENEVER CRITICAL

COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS

SUSPECTED.

Note

Power requirements 110-240 V AC, 50/60 Hz

220-240VAC, 50/60Hz Hong Kong/OCE

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

Television system B/G KV-PF14L70/PF14P10/

KV-PF14P70/PF14Q70

B/G, I, D/K, M KV-PF14M40/PF14M70

Color system PAL, PAL60, SECAM, NTSC4.43 KV-PF14Q70

PAL, PAL60, NTSC4.43, NTSC3.58 (AV IN) KV-PF14P70/PF14P10

PAL, PAL60, SECAM, NTSC4.43, NTSC3.58 (AV IN) KV-PF14L70

PAL, PAL60, SECAM, NTSC4.43, NTSC3.58 KV-PF14M40/PF14M70

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 KV-PF14M40/PF14M70

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

UHF : C13 to C57

CATV : S01 to S03, S1 to S41, Z1 to Z39 KV-PF14M40/PF14M70

MVHF : A2 to A3

UHF : A14 to A79

CATV : A-8 to A-2, A-2 to W+4, W+60 to W+84 KV-PF14M40/PF14M70

˘˘

˘(Antenna) 75-ohm external terinal

Audio output 3W

Number of terminal

(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) 375 x 346 x 416

Mass (kg) 13

Design and specifications are subject to change without notice.

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KV-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 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. Chassis Assy Removal ............................................. 19

2-3. F Bracket 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 Bar Optical ............................. 20

2-6. Terminal Bracket Removal ...................................... 20

2-7. Degauss Coil Removal............................................. 20

2-8. Picture Tube Removal.............................................. 21

3. SET-UP ADJUSTMENTS

3-1. Beam Landing .......................................................... 22

3-2. Convergence............................................................. 23

3-3. Focus Adjustment .................................................... 25

3-4. G2 (Screen) and White Balance Adjustments......... 25

4. CIRCUIT ADJUSTMENTS

4-1. Adjustments with Commander ................................ 26

4-2. Adjustment Method ................................................. 27

4-3. Picture Quality Adjustments.................................... 32

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

Replacement............................................................. 32

4-5. Picture Distortion Adjustment ................................. 33

Section Title Page

5. DIAGRAMS

5-1 Block Diagram ......................................................... 37

5-2 Frame Schematic Diagram ...................................... 40

5-3 Circuit Boards Location .......................................... 42

5-4 Schematic Diagrams and Printed Wiring Boards ... 43

(1) Schematic Diagram of A(1/2) Board ................................. 45

(2) Scheamtic Diagram of A(2/2) Board ................................. 49

(3) Schematic Diagrams of C3 and F Boards ......................... 56

5-5 Semicondutors ......................................................... 61

6. EXPLODED VIEWS

6-1. Chassis ..................................................................... 64

7. ELECTRICAL PARTS LIST ............................... 66

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KV-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 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 board)

• H.OUT Q511 is shorted.

(A board)

• -13V is not supplied.

(A board)

• IC 503 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

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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-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 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-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 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 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

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KV-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 RM-952

WARNING

• Dangerously high voltages are present inside the TV.

• TV operating voltage: 110 – 240 V AC. (For Hong Kong/OCE: 220 – 240 VAC.)

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

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 12).

: Signal flow

VIDEO

VIDEO IN

VIDEO OUT

AUDIO

Rear of TV

To ˘

(antenna)

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.

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KV-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 RM-952

Using Your New TV

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 9).

Note (KV-PF14DK7/PF14M40/PF14M70)

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

“I”, “D/K” or “M” for the TV system.

Now You Are Ready. . .

To watch your TV, see page 11.

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.

Step 2

Note

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

Step 3

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

Front of TV

VHF LOW B/G

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 12).

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

outputVCR

: Signal flow

To…2

(video input)

To Ú

(monitor

output)

Audio/Video cable (not supplied)

Antenna cable (not supplied)

Audio/Video cable (not supplied) : Signal flow

To video

and audio

inputs

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KV-PF14DK7/PF14L70/PF14M40/PF14M70

KV-PF14P10/PF14P70/PF14Q70 RM-952

Using Your New TV

123

789

÷0

JUMP

SOUND

MODE

FAVORITE

PROGR

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-PF14DK7/PF14M40/PF14M70)

• 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 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

VHF LOW B/G

Using Your New TV

Securing the TV

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

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

the TV using the provided hole.

Put the cord or chain through the clamps to secure the TV against a wall or

pillar.

Note

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

3.8mm

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