SONY KV-J14KD5, KV-J14KF5 SERVICE MANUAL

SERVICE MANUAL

BG-1S (D)

CHASSIS

MODEL COMMANDER DEST. CHASSIS NO.

KV-J14KD5 KV-J14KF5

RM-870 Vietnam SCC-K26N-A RM-870 Vietnam SCC-K26P-A

MODEL COMMANDER DEST. CHASSIS NO.

TRINITRON

COLOR TV

KV-J14KD5/J14KF5

RM-870

Power requirements 110-240 V AC, 50/60 Hz Power consumption (W) Indicated on the rear of the TV Television system B/G, D/K Color system PAL, PAL 60, NTSC4.43, NTSC3.58 (AV IN) Channel coverage

B/G VHF: E2 to E12/UHF: E21 to E69/CATV: S01 to S03, S1 to S41 D/K VHF: C1 to C12, R1 to R12/UHF: C13 to C57, R21 to R60/

Audio output (speaker) 3W KV-J14KD5

Inputs Antenna: 75 ohms

Outputs Earphone jack: minijack KV-J14KD5

Picture tube 14 in.

Tube size (cm) 37 Measured diagonally Screen size (cm) 34 Measured diagonally

Dimensions (w/h/d, mm) 456 × 343 × 416 Mass (kg) 12

SPECIFICATIONS

Note

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

3W + 3W KV-J14KF5

VIDEO IN jacks: phono jacks

Video: 1 Vp-p, 75 ohms Audio: 500 mVrms, high impedance

Headphone jack: minijack KV-J14KF5 MONITOR OUT jacks: phono jacks

Video: 1 Vp-p, 75 ohms Audio: 500 mVrms

CAUTION

SHORT CIRCUIT THE ANODE OF THE PICTURE TUBE AND THE ANODE CAP T O THE METAL CHASSIS, CRT SHIELD, OR CARBON PAINTED ON THE CRT, AFTER REMOVING THE ANODE.

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 T O SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

– 2 –

KV-J14KD5/J14KF5

Section Title Page Section Title Page

RM-870

1. GENERAL.................................................................... 4

2. DISASSEMBLY

2-1. Rear Cover Removal ........................................... 9

2-2. A Board Removal ................................................ 9

2-3. Service Position ................................................... 9

2-4. Replacement of Parts ........................................... 10

2-5. Demagnetization Coil Removal .......................... 10

2-6. Picture Tube Removal ......................................... 11

3. SET-UP ADJUSTMENTS

3-1. Beam Landing ...................................................... 12

3-2. Convergence ........................................................ 1 3

3-3. Focus Adjustment ................................................ 15

3-4. G2 (Screen) and White Balance Adjustments..... 15

4. SELF DIAGNOSIS FUNCTION............................ 16

5. CIRCUIT ADJUSTMENTS

5-1. Adjustments with Commander ............................ 17

5-2. Adjustment Method ............................................. 18

5-3. A Board Adjustment after IC003 (Memory)

Replacement......................................................... 21

5-4. Picture Distortion Adjustment............................. 21

6. DIAGRAMS

6-1. Block Diagram ...................................................... 23

6-2. Circuit Boards Location ....................................... 25

6-3. Schematic Diagrams and Printed Wiring Boards 25

(1) Schematic Diagram of A Board............................ 29

(2) Schematic Diagrams of A11, A12 and C Boards . 33

6-4. Semiconductors..................................................... 37

7. EXPLODED VIEW

7-1. Chassis .................................................................. 39

8. ELECTRICAL PARTS LIST ................................... 41

– 3 –

KV-J14KD5/J14KF5

MONITOR

OUT

AUDIO

VIDEO

VIDEO IN

TV SYSTEM

AUTO PROGR

B/G I D/K M

TV SYSTEM

AUTO PROGR

B/G

D/K

TV SYSTEM

– 4 –

SECTION 1

GENERAL

The operating instructions mentioned here are partial abstracts from the Operating Instructions Manual. The page numbers of the Operating Instruction Manual remain as in this manual.

RM-870

Getting Started

-EN

Connecting optional equipment

You can connect optional audio/video equipment to your TV such as a VCR, multi disc player, camcorder, video game or stereo system.

Connecting video equipment using video input jacks

p KV-J14KD5

p KV-J14KF5

When using the video input jacks

Do not connect video equipment to the video input jacks at the front and the rear of your TV simultaneously; otherwise the picture will not be displayed properly on the screen.

VIDEO

L(MONO

)

VIDEO INPUT

AUDIO

Front of TV

Camcorder

to video and audio outputs

p KV-J14KF5

to antenna output

VIDEO IN

Rear of TV

VIDEO IN

VIDEO

AUDIO R L (MONO)

VIDEO

MONITOR

OUT

to antenna socket

VIDEO

AUDIO

VIDEO

MONITOR

OUT

: Signal flow

to antenna socket

to antenna output

VCR

to video and audio outputs

Rear of TV

When connecting a monaural VCR

Connect the yellow plug to VIDEO and the black plug to AUDIO-L (MONO).

p KV-J14KD5

Front of TV

VIDEO

VIDEO INPUT

AUDIO

Camcorder

to video and audio outputs

: Signal flow

Getting Started

-EN

Connections

Connecting a VHF antenna or a combination VHF/UHF antenna — 75-ohm coaxial cable (round)

Attach an optional IEC antenna connector to the 75-ohm coaxial cable. Plug the connector into the

(antenna) socket at the rear of the TV.

Getting Started

On a wall

Rear of TV

Connecting an indoor antenna

Note

• You are advised to use an outdoor antenna for better reception.

MONITOR

OUT

AUDIO

VIDEO

– 5 –

KV-J14KD5/J14KF5

RM-870

KV-J14KD5/J14KF5

Getting Started

-EN

Connecting audio/video equipment using MONITOR OUT jacks

When recording through the MONITOR OUT jacks

If you change the channel or video input while recording with a VCR, the channel or video input you are recording also will be changed.

VIDEO

AUDIO

VIDEO

MONITOR

OUT

Rear of TV

MONITOR OUT

p KV-J14KD5

to video and audio inputs

to antenna socket

to antenna output

VCR

Audio system

p KV-J14KF5

VCR

Rear of TV

MONITOR OUT

VIDEO

AUDIO R L (MONO)

VIDEO

MONITOR

OUT

to antenna socket

to video and audio inputs

to antenna output

: Signal flow

Audio system

: Signal flow

Getting Started

-EN

Presetting channels

Presetting channels automatically

You can preset up to 80 TV channels in numerical sequence from program position 1.

Front of TV

Press POWER.

When the TV is in standby mode after pressing POWER, press POWER on the remote commander.

Press TV SYSTEM until your local TV system appears.

Press AUTO PROGR.

To start presetting channels automatically from the specified program position 1 Press MANUAL PROGR. 2 Press TV SYSTEM to select your local TV system. 3 Press PROGR +/– to select the program position. 4 Press AUTO PROGR.

Presetting channels manually

To change the channel for a particular program position or to receive a channel with a weak signal, preset the channel manually.

Press MANUAL PROGR.

Press PROGR +/– until the required program position appears on the screen.

Press TV SYSTEM until your local TV system appears.

Press VOLUME +/– on the TV until the required channel picture appears on the screen.

Press MANUAL PROGR.

If the TV system is not properly selected

The color of the picture may be poor and/or the sound may be noisy. In this case, select the appropriate TV system.

1 Press PROGR +/– to select the program position. 2 Press TV SYSTEM until the picture and sound

become normal.

Notes

• If you do not know your local TV system, consult your nearest

authorized service center or dealer.

• The setting of the TV SYSTEM is memorized for each program

position.

Disabling program positions

By disabling unused or unwanted program positions, you can skip those positions when you press PROGR +/–.

Press PROGR +/– until the unused or unwanted program position appears on the screen.

Press MANUAL PROGR.

Press PIC MODE on the remote commander.

Press MANUAL PROGR.

To cancel the skip setting

Preset the channel manually or automatically again.

MANUAL PROGR

COLOR SYSTEM

SELECT

TV SYSTEM

AUTO PROGR

POWER

TV SYSTEM

POWER

B/G D/K

AUTO PROGR

1 2

3 1

RM-870

– 6 –

Operations

-EN

Watching the TV

Switching off the TV

To switch off the TV temporarily, press POWER on the remote commander.

To switch off the TV completely, press POWER on the TV. If the power on the TV is turned off in standby mode, the STANDBY indicator may remain alight for a while.

Watching the video input

Press VIDEO/HOLD.

To watch TV, press TV.

Muting the sound

Press MUTING.

Press POWER to turn the TV on.

To scan through channels

Press PROGR +/– until the channel you want appears.

Press VOL +/– to adjust the volume.

When the TV is in standby mode after pressing POWER, press POWER on the remote commander.

Select the TV channel you want to watch.

To select a channel directly

Press a number button.

To select a two-digit channel, press “-/--” before the number buttons. For example: to select channel 25, press “-/- -,” and then “2” and “5.”

123 46 789

PROGR

VOL

POWER

Operations

MUTING

HOLD

VIDEO

POWER

-EN

Operations

-EN

• The last TV program position or video mode just before the TV

turns into standby mode will appear when the TV is turned on using the Wake Up Timer.

• If no buttons or controls are pressed for more than two hours

after the TV is turned on using the Wake Up Timer, the TV automatically turns into standby mode. When you want to continue watching the TV, press any button or control on the TV or remote commander.

Setting the Sleep Timer

You can set the TV to turn off automatically after the period of time you want.

Press SLEEP.

To cancel the Sleep Timer, press SLEEP repeatedly until “SLEEP TIMER: OFF” appears, or turn the TV off.

Changing the on-screen display language

If you prefer Chinese to English, you can change the on-screen display language. You can use buttons on the remote commander or the TV.

Press SELECT until the screen appears as follows:

Press + or – to select “⁄⁄⁄ ”.

Note

• You can also use VOLUME +/– on the TV to select the on-

screen display language.

WAKE UP TIMER:10M

WAKE UP TIMER:OFF

WAKE UP TIMER:12H00M

After 12 hours

No wake up timer

After 10 minutes

INDEX

WAKE UP

Displaying on-screen information

Press DISPLAY/REVEAL.

The program position, local system, and TV settings are displayed on the screen.

Setting the Wake Up Timer

You can set the TV to turn on automatically after the period of time you want.

Press WAKE UP/INDEX repeatedly to set the timer.

The on-screen display appears and the WAKE UP/ STEREO indicator lights up.

If you want a particular TV program or video input to be displayed using the Wake Up Timer, select the TV program or video mode.

Press POWER on the remote commander or set the Sleep Timer to turn off the TV in standby mode.

To cancel the Wake Up Timer, press WAKE UP/ INDEX repeatedly until “WAKE UP TIMER: OFF” appears, or turn off the main power of the TV.

Notes

• The Wake Up Timer starts immediately after the on-screen

display disappears.

SLEEP

After 60 minutes

After 90 minutesNo sleep timer

After 30 minutes

SLEEP TIMER:30M

SLEEP TIMER:60M

SLEEP TIMER:OFF

SLEEP TIMER:90M

+ or – SELECT

REVEAL

DISPLAY

AUTO B/G

STANDARD

LANGUAGE / : ENGLISH

SELECT

LANGUAGE / »y¤¥¡GENGLISH

LANGUAGE / :

»y¤¥ / LANGUAGE: ⁄⁄⁄

– 7 –

KV-J14KD5/J14KF5

RM-870

-EN

Additional Information

Troubleshooting

Good picture Noisy sound

/Check the TV SYSTEM setting.

No picture No sound

/Press POWER. /Check the antenna connection. /Check the VCR connections. /Check the power cord connection. /Check the standby mode.

Good picture No sound

/Press VOLUME +. /Press MUTING.

No color

/Adjust the COLOR level in the on-screen

display.

/Check the COLOR SYSTEM setting.

TV cabinet creaks

/Even if the picture or the sound is normal,

changes in the room temperature sometimes make the TV cabinet expand or contract, making a noise. This does not indicate a malfunction.

Notes

• When you switch on the TV, you may hear the “boon” sound

that is caused by the demagnetization of the TV. This does not indicate a malfunction.

• The picture color may become abnormal if you change the

direction of your TV. To obtain the normal picture color, press POWER on the TV to switch off the TV for five minutes and then switch it on again.

• Design and specifications are subject to change without notice.

Additional Information

If you have any problems, read this manual again and check the countermeasure for each of the symptoms listed below. If the problem persists, contact your nearest authorized service center or dealer.

Snowy picture Noisy sound

/ Check the antenna. / Check the antenna connection on the TV

and on the wall.

/ Check the TV SYSTEM setting.

Dotted lines or stripes

/ This may be caused by local interference

(e.g. cars, neon signs, hair dryers, etc.). Adjust the antenna for minimum interference.

Double images or “ghosts”

/ This may be caused by reflections from

nearby mountains or buildings. A highly directional antenna may improve the picture.

Note on the remote commander

• The supplied remote commander is used on several models of

the TV. If you do not find instructions for some controls that are on the remote commander, that means your TV does not employ the features of those controls, e.g. TEXT.

WARNING

Do not install the appliance in a confined space, such as a bookcase or built-in cabinet.

Operations

-EN

PICTURE

COLOR

BRIGHT

HUE

SHARPNESS

BASS

BALANCE

TREBLE

SURROUND

Adjusting the picture and sound

Selecting the picture mode

Press PIC MODE until the mode you want appears.

Each time you press PIC MODE, the screen changes as follows:

Note

• If you change the picture mode after the following

adjustments, the adjustment changes in accordance with the picture mode.

Adjusting the picture and sound settings

Press SELECT until the item you want to adjust appears.

+ or – SELECT

PIC MODE

High contrast picture

SELECT

Each time you press SELECT, the screen changes as follows:

Note

• The on-screen display for “BASS”, “TREBLE”, “BALANCE”

and “SURROUND” are available for KV-J14KF5 only.

Press + or – to adjust the item.

To adjust other items, repeat steps 1 and 2.

Note

• You can also use VOLUME +/– on the TV to adjust the picture

and sound settings.

If the color of the picture is abnormal

When receiving programs through the

terminal: Press TV SYSTEM or COLOR SYSTEM or adjust the color setting until the color becomes normal.

Note

• Normally set COLOR SYSTEM to AUTO.

If the sound is distorted or noisy

When receiving programs through the

terminal: Press TV SYSTEM until the sound becomes clear.

Front of TV

DYNAMIC

STANDARD

SOFT

Soft picture (good for video games)

(Operative for NTSC signal only)

( for KV-J14KF5)

MANUAL PROGR

COLOR SYSTEM

SELECT

TV SYSTEM

AUTO PROGR

KV-J14KD5/J14KF5

RM-870

– 8 –

SECTION 2

A board

Two screws

(BVTP 4×16)

One screw

(BVTP 3×12)

Two screws

(BVTP 4×16)

Lever

A board

DISASSEMBLY

2-1. REAR COVER REMOVAL

– 9 –

2-2. A BOARD REMOVAL

2-3. SERVICE POSITION

KV-J14KD5/J14KF5

RM-870

KV-J14KD5/J14KF5

Light guide

Cut

One screw (BVTP 3×12)

Two screws (BVTP 3×12)

Demagnetization coil

Tension spring

Picture tube

3 DGC holder

DGC holder

Cut

Multi button

2-4. REPLACEMENT OF PARTS

For replacement of the Multi Button and Light Guide, cut the welded portions from them, exchange with the new parts, and fix them with screws (+BVTP) respectively.

2-4-1. REPLACEMENT OF MULTI BUTTON

– 10 –

2-4-2. REPLACEMENT OF LIGHT GUIDE

2-5. DEMAGNETIZATION COIL REMOVAL

RM-870

+ 23 hidden pages

SONY KV-J14KD5, KV-J14KF5 SERVICE MANUAL

SPECIFICATIONS

TABLE OF CONTENTS

GENERAL

DISASSEMBLY