Sony TRINITRON KV-LX34M50 Service Manual

MODEL COMMANDER DEST. CHASSIS NO.

KV-LX34M50

RM-871 IndonesiaSCC-K67D-A

MODEL COMMANDER DEST. CHASSIS NO.

CHASSIS

TRINITRON

COLOR TV

SERVICE MANUAL

BG-1L

– 2 –

KV -LX34M50

RM-871

SPECIFICATIONS

Note

Power requirements 110-240 V AC, 50/60 Hz Power consumption (W) Indicated on the rear of 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

I UHF: 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: Z1 to Z39, S01 to S03, S1 to S41

M VHF: 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 (speaker) 5W + 5W + 15W (3D WOOFER) Number of terminal

D (Video) Input: 4 Output: 1 Phono jacks; 1 VP-P, 75 ohms ≥ (Audio) Input: 4 Output: 1 Phono jacks; 500 mVrms

(S Video) Input: 2 Y : 1 Vp-p, 75 ohms,

unbalanced, sync negative C : 0.286 Vp-p, 75 ohms

2 (Headphone) Output: 1 Minijack

Picture tube 34 in.

Tube size (cm) 86 Measured diagonally Screen size (cm) 80 Measured diagonally

Dimension (w/h/d, mm) 950 × 662 × 593 Mass (kg) 77

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.

Design and specifications are subject to change without notice.

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KV-LX34M50

RM-871

TABLE OF CONTENTS

Section Title Page

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

2. DISASSEMBLY

2-1. 3D Speaker Box Removal ....................................... 15

2-2. Rear Cover Removal ............................................... 15

2-3. Speaker Removal ..................................................... 15

2-4. Chassis Assy Removal ............................................. 15

2-5. Service Position ....................................................... 16

2-6. P1 Board Removal ................................................... 16

2-7. P2 and S1 Boards Removal ..................................... 16

2-8. B3 and DF Boards Removal .................................... 17

2-9. A and D Boards Removal ........................................ 17

2-10. F1, H5 and K Boards Removal ............................... 17

2-11. DGC Removal .......................................................... 17

2-12. Switch Block Removal ............................................ 18

2-13. Picture Tube Removal ............................................. 18

3. SELF DIAGNOSIS FUNCTION ......................... 20

4. SET-UP ADJUSTMENTS

4-1. Beam Landing .......................................................... 21

4-2. Convergence ............................................................ 22

4-3. Focus Adjustment .................................................... 24

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

5. CIRCUIT ADJUSTMENT

5-1. Adjustments with Commander ................................ 26

5-2. Adjustment Method ................................................. 27

5-3. Picture Quality Adjustments.................................... 32

5-4. Display Position Adjustment ................................... 32

5-5. A Board Adjustment After IC003 (Memory)

Replacement............................................................. 33

5-6. Picture Distortion Adjustment ................................. 33

Section Title Page

6. DIAGRAMS

6-1. Block Diagram ......................................................... 35

6-2. Frame Schematic Diagram ...................................... 37

6-3 Circuit Boards Location .......................................... 40

6-4. Schematic Diagrams and Printed Wiring Boards ... 40

(1) Schematic Diagrams of D, F1, H5 and H6 Boards . 45

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

(3) Schematic Diagrams of B3, P1, P2

and VM Boards ........................................................ 57

(4) Schematic Diagrams of C1, DF, K and S1

Boards ...................................................................... 61

6-5. Semiconductors........................................................ 67

7. EXPLODED VIEWS

7-1. Picture Tube ............................................................. 69

7-2. Chassis ..................................................................... 70

7-3. 3D Speaker ............................................................... 71

8. ELECTRICAL PARTS LIST............................... 72

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KV-LX34M50

RM-871

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.

Getting Started

123

(MONO)

(

MONO

)

When connecting a monaural VCR

Connect the yellow plug to

(VIDEO) and the black plug to

≥

-L (AUDIO-L MONO).

When connecting video game equipment

Connect video game equipment to the … 3 (VIDEO 3 INPUT) jacks at the front of your TV or the … (VIDEO IN) 3 jacks at the rear of your TV.

When connecting a VCR to the

(antenna) terminal

Preset the signal output from the VCR to the program position 0.

When connecting video equipment to the … 3 (VIDEO 3 INPUT) jacks or the … (VIDEO IN) 3 jacks

Do not connect video equipment to the … 3 (VIDEO 3 INPUT) jacks at the front and the … (VIDEO IN) 3 jacks at the rear of your TV simultaneously; otherwise the picture will not be displayed properly on the screen.

If both S Video and video signals are input simultaneously

The S Video input signal is selected. To view a video input signal, disconnect the

(S Video) connection.

Note on the video input

When no signal is input, the screen becomes blue.

Connecting audio/video equipment using Ú (MONITOR/TV OUT) jacks

Front of TV

Camcorder

to S video output

to video and audio outputs

: Signal flow

Rear of TV

VCR

to antenna output

to video and audio inputs

(yellow)

≥

-L (white)

≥

-R (red)

Audio system

to audio inputs

: Signal flow

to antenna socket

Getting Started

123

(MONO)

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.

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

Connections

On a wall

Rear of TV

(yellow)

-L (white)

-R (red)

VCR

to S Video output

to antenna output

to video and audio outputs

: Signal flow

Getting Started

to antenna socket

to S Video input

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KV -LX34M50

RM-871

Getting Started

Names of buttons on the remote commander are indicated in different colors to represent the available functions.

Label color Button function

White For general TV operations.

Green For Teletext operations. (This is not used for this model)

Yellow For PIP and PROGRAM INDEX operations.

PROGR

PIP PROGR

GAME

PROGR INDEX

PIP

TEXT

8 0

-/--

POWER BASSO

ENTER

A/B

Getting to know the remote commander

PIP operation buttons

(page 22)

(page 23)

(page 22)

V/v/ENTER

– for PIP PROGR (page 22)

PROGRAM INDEX operation buttons

PROGR INDEX (page 21) V/b/v/B/ENTER (page 21) PROGR +/– (page 21)

GAME (page 27)

Teletext operation buttons

(This is not used for this model)

(page 24, 25)

A/B

(page 25)

(page 24)

[]

– Red (page 24)

[]

– Green (page 24)

[]

– Yellow (page 24)

[]

– Blue (page 24) (page 24)

(page 25)

PIP TEXT (page 26) V/b/v/B/ ENTER (page 26)

POWER BASSO (page 18)

PROGR

PIP PROGR

GAME

PROGR

INDEX

PIP TEXT

8 0

-/--

POWER BASSO

ENTER

A/B

Getting Started

Introducing the menus

You can preset TV channels, adjust the picture and sound qualities, and select some settings using the on-screen menus. You can use the buttons on both the remote commander and the TV to operate the menus.

A/V CONTROL

PIP

FEATURES

Getting back to the previous menu (except for AUTO PROGRAM)

Press V or v to move the cursor (z) to the first line (N) of each menu, and press ENTER.

Cancelling the menu screen

Press MENU.

Notes (except for AUTO PROGRAM)

• When a menu is selected after pressing ENTER, the color of both the menu and the menu symbol change and the cursor (z) appears beside the first item of the menu.

• When an item on the menu is selected after pressing ENTER, the color of the item changes.

• You can refer to the guide (

) at the bottom of the menus (except for the PRESET menu) for the basic operations of the menu.

• If more than approximately 60 seconds elapse after you press a button, the menu screen disappears automatically.

PIP

PIP: OFF

PIP TEXT STROBE POSI TI ON:

PROGR IND EX

PRESET

BASS

80 00

TREBLE BALANCE

AUDI O ADJUST

PRESET

SKIP:

PR02 OFF

TV SYS: B/G COL

SYS : AUTO

ENGL I SH AUTO P ROGRAM MANUAL P ROGRAM

LA NGUAGE /

P I CTURE

100

V I DEO ADJUS T COLOR

BR I GHT HUE SHARP VM: HIGH

45 0

TV SYS: B/G

AUTO P ROGRAM

VHF LO

PR: 01

TV SYS: B/G VHF

LOW

PR: 01 ATT : OFF

MANUAL P ROGRAM

GAME MODE HYPER SURROUND:

OFF MONITOR

AV OUT :

FE ATURES

A / V CONTROL DYNAMIC

SOFT

STA NDARD PERSONAL

V I DEO ADJU ST AUDI O ADJUST

( This is not used for this model)

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KV-LX34M50

RM-871

Getting Started

Changing the menu language

p KV-LX34M31

If you prefer Chinese to English, you can change the menu language. You can use buttons on both the remote commander and the TV.

Press U to turn on the TV.

Press MENU.

Press V or v to move the cursor (”) to the PRESET menu ( ), and press ENTER.

ENTER

Make sure the cursor (

”

) appears beside

LANGUAGE/

, and press ENTER.

Press V/b/v/B to select

, and press ENTER.

All of the menus change to Chinese.

Press MENU to return to the normal screen.

PRESET

SKIP: PR02 OFF

TV SYS: B /G COL SYS: AUTO

ENGL I S H AUTO PROGRAM MANUAL P ROGRAM

LANGUA GE /

ENTER ENTER

ENTER MENU AUTO

PROGR

ONE PUSH AUTOMATIC PROGRAMMING

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

„w‡]

‚ı¶V W„D ¡GPR02 ˆ

„q ł¤t†˛¡GB/G –mƒ ¤ ƒ¡¡Gƒ ˚

⁄⁄⁄ ƒ˚‰¥x ⁄˚‰¥x

»y¤¥/ LANGUA GE

ENTER

Getting Started

You can preset TV channels easily by storing all the receivable channels automatically. You can also preset channels manually or disable program positions (see page 12 ).

Presetting channels automatically

You can preset up to 100 TV channels in numerical sequence from the program position 1. You can preset channels automatically using the button on the TV or the menu.

Press U to turn on the TV.

Press AUTO PROGR.

The TV starts scanning and presetting channels automatically. When all of the receivable channels are stored, the AUTO PROGRAM menu disappears and the first nine preset TV programs appear on the nine sub screens. The nine sub screens disappear after being displayed for several seconds.

Presetting channels

Note

• If you want to return to the normal screen while the nine sub screens are being displayed, you can press PROGR INDEX on the remote commander.

To preset channels automatically using the menu

1 Press MENU.

2 Press V or v to move the cursor (z) to the

PRESET menu (

), and press ENTER.

3 Press V or v to move the cursor (z) to AUTO

PROGRAM, and press ENTER.

Presetting channels manually

To change the program position for a channel or to receive a channel with a weak signal which you cannot receive by automatic presetting, preset the channel manually.

Press MENU.

Press V or v to move the cursor (z) to the PRESET menu (

), and press ENTER.

Select your local TV system.

(1) Press V or v to move the cursor (z) to TV SYS, and

press ENTER.

(2) Press V/b/v/B until your local TV system appears

on the menu, and press ENTER.

ENTER

PRESET

SKIP: PR02 OFF

TV SYS: B /G COL SYS: AUTO

ENGL I S H AUTO PROGRAM MANUAL P ROGRAM

LANGUA GE /

ENTER

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

ENTER MENU AUTO

PROGR

ONE PUSH AUTOMATIC PROGRAMMING

TV SYS:B/G

AUTO PROGRAM

VHF LO

PR: 0 1

123

456

789

AUTO

PROGR

– 7 –

KV -LX34M50

RM-871

Getting Started

Disabling program positions

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

Press MENU.

Press V or v to move the cursor (z) to the PRESET menu (

), and press ENTER.

Press V or v to move the cursor (z) to SKIP, and press ENTER.

Press V or v until the unused or unwanted program position appears on the menu, and press ENTER.

Press V/b/v/B to select ON, and press ENTER.

To disable other program positions, repeat steps 4 and 5.

Press MENU to return to the normal screen.

To cancel the skip setting 1 Display the PRESET menu. 2 Press V or v to move the cursor (z) to SKIP, and

press ENTER.

3 Press V or v until the program position you want to

cancel the skip setting appears, and press ENTER.

4 Press V/b/v/B to select OFF, and press ENTER.

Press V or v to move the cursor (z) to MANUAL PROGRAM, and press ENTER.

Select the program position to which you want to preset a channel.

(1) Make sure the cursor (z) appears beside PR, and

press ENTER.

(2) Press V/b/v/B until the program position you

want appears on the menu, and press ENTER.

Select the desired channel.

(1) Press V or v to move the cursor (z) to VHF LOW,

and press ENTER.

(2) Press V/b/v/B until the desired channel picture

appears on the TV screen, and press ENTER.

Press MENU to return to the normal screen.

If the TV signal is too strong

The picture may be distorted. You can reduce the picture distortion as described below.

1 Display the PRESET menu. 2 Press V or v to move the cursor (z) to MANUAL

PROGRAM, and press ENTER.

3 Press V or v to move the cursor (z) to ATT, and

press ENTER.

4 Press V/b/v/B to select ON, and press ENTER.

If the TV system is not properly selected

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

1 Press PROGR +/– or the number buttons to select

the program position.

2 Display the PRESET menu. 3 Press V or v to move the cursor (z) to TV SYS, and

press ENTER.

4 Press V/b/v/B until the appropriate TV system

appears, and press ENTER.

Notes

• The TV system and the ATT (attenuator) settings are memorized for each program position.

• If you do not know your local TV system, consult your nearest Sony dealer or authorized service center.

TV SYS:B/G VHF

LOW

PR: 0 1 ATT : OFF

MANUAL P ROGRAM

ENTER

Operations

Watching the TV

To scan through program positions

Press PROGR +/– on the remote commander or the TV until the program position you want appears.

Press Á +/– on the remote commander or the TV to adjust the volume.

Turning off the TV

To turn off the TV temporarily

Press u on the remote commander or the TV. The u indicator lights up.

To turn off the TV completely

Press U on the TV.

Watching the video input

Press …

on the remote commander or … on

the TV.

Press U to turn on the TV.

When the TV is turned on in the standby mode, the u indicator on the TV lights up. To turn on the TV completely, press u on the remote commander or the TV. When the TV is turned on completely, the PROGR +/–, Á +/–, and … indicators on the TV light up.

Select the TV program you want to watch.

To select a program position directly

Press the number button.

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

PROGR

-/--

VIDEO 1

VIDEO 2 VIDEO 3

Operations

8 0

-/--

PROGR

– 8 –

KV-LX34M50

RM-871

Operations

To watch TV

Press ; on the remote commander or … on the TV.

Switching back quickly to the previous channel

Press JUMP.

Muting the sound

Press ¤.

Displaying the on-screen information

Press

Note

• The on-screen display shows the program position or the video mode, the picture and sound information. The on-screen display for the picture and sound information disappears after being displayed for approximately three seconds.

Setting the Wake Up Timer

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

Press repeatedly to set the timer.

The on-screen display appears.

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

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

The

indicator lights up in amber color.

To cancel the Wake Up Timer, press

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.

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

turns into the 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 the standby mode. If you want to continue watching the TV, press any button or control on the TV or remote commander.

MUTING

After 10 minutes

After 12 hours

No Wake Up Timer

POWER BASSO: ON

DYNAMIC

WAKE UP TIMER:10M

WAKE UP TIMER:OFF

WAKE UP TIMER:12H00M

Operations

Setting the Sleep Timer

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

Press

To cancel the Sleep Timer, press

repeatedly until

“SLEEP TIMER: OFF” appears, or turn the TV off.

After 30 minutes

After 60 minutes

No Sleep Timer

After 90 minutes

SLEEP TIMER:30M SLEEP TIMER:60M

SLEEP TIMER:OFF

SLEEP TIMER:90M

– 9 –

KV -LX34M50

RM-871

Operations

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

Selecting the picture and sound modes

Press MENU.

Make sure the cursor (”) appears in the A/V CONTROL menu (

), and press ENTER.

Press V or v to move the cursor (”) to DYNAMIC, STANDARD, SOFT, or PERSONAL, and press ENTER.

Select To

DYNAMIC Receive high contrast picture with

powerful sound.

STANDARD Receive normal contrast picture with

medium listening sound.

SOFT Receive mild picture with soft sound.

PERSONAL Receive the last picture and sound

settings that are adjusted using VIDEO ADJUST and AUDIO ADJUST.

Press MENU to return to the normal screen.

Adjusting the picture and sound

ENTER

ENTER ENTER

Press V/b

Increase picture contrast.

Increase color intensity.

Brighten the picture.

Make picture tones become greenish.

Sharpen the picture.

Increase emphasis on picture edges.

Adjusting the picture settings (VIDEO ADJUST)

You can adjust the picture settings to suit your taste with the VIDEO ADJUST option. The adjusted settings are stored in the PERSONAL option.

Press MENU.

Make sure the cursor (”) appears in the A/V CONTROL menu (

), and press ENTER.

Press V or v to move the cursor (”) to VIDEO ADJUST, and press ENTER.

Press V or v to move the cursor (”) to the item you want to adjust, and press ENTER.

Press V/b/v/B to adjust the selected item, and press ENTER.

For details on each item, see “Description of adjustable items” below.

To adjust other items, repeat steps 4 and 5.

Press MENU to return to the normal screen.

Description of adjustable items

Item Press v/B

PICTURE Decrease picture

contrast.

COLOR Decrease color

intensity.

BRIGHT Darken the picture.

HUE Make picture tones

become reddish.

SHARP Soften the picture.

VM Decrease emphasis

on picture edges.

Note

• You can adjust HUE for the NTSC system only.

PI C TURE

100

VI DEO AD JUST COLOR

BR IGHT HUE SHARP VM: HIGH

45 0

ENTER

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

Operations

A / V CONTROL DYNAMIC

SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

Press V/b

Increase the bass sound.

Increase the treble sound.

Increase the right speaker's volume.

If the picture is slightly snowy

You may try to improve the picture by changing the VM setting as described below:

1 Display the VIDEO ADJUST menu. 2 Press V or v to move the cursor (”) to VM, and

press ENTER.

3 Press V/b/v/B to select LOW, and press ENTER.

If the picture color is abnormal when receiving programs through the ˘ (antenna) terminal

Change the color system or the TV system from the PRESET menu as described below until the color becomes normal.

1 Display the PRESET menu. 2 Press V or v to move the cursor (”) to

COL SYS or TV SYS, and press ENTER.

3 Press V/b/v/B to change the color system or the

TV system until the color becomes normal, and press ENTER.

Note

• Normally set the color system (COL SYS) to AUTO.

Adjusting the sound settings (AUDIO ADJUST)

You can adjust the sound settings to suit your taste with the AUDIO ADJUST option. The adjusted settings are stored in the PERSONAL option.

Press MENU.

Make sure the cursor (”) appears in the A/V CONTROL menu (

), and press ENTER.

Press V or v to move the cursor (”) to AUDIO ADJUST, and press ENTER.

Press V or v to move the cursor (”) to the item you want to adjust, and press ENTER.

Press V/b/v/B to adjust the selected item, and press ENTER.

For details on each item, see “Description of adjustable items” below.

To adjust other items, repeat steps 4 and 5.

Press MENU to return to the normal screen.

Description of adjustable items

Item Press v/B

BASS Decrease the bass

sound.

TREBLE Decrease the treble

sound.

BALANCE Increase the left

speaker's volume

If the sound is distorted or noisy when receiving programs through the

(antenna)

terminal

Change the TV system from the PRESET menu as described below until the sound becomes normal.

1 Display the PRESET menu. 2 Press V or v to move the cursor (”) to TV SYS, and

press ENTER.

3 Press V/b/v/B to change the TV system until the

sound becomes normal, and press ENTER.

BASS

80 00

TREBLE BALANCE

AUDI O AD JUST

ENTER

– 10 –

KV-LX34M50

RM-871

Operations

Listening to the POWER BASSO sound

The POWER BASSO sound enables you to enjoy a high quality sound mode with the best combination of all types of sound. It reproduces dynamic and clear sounds and emphasizes low and high audio effects as well.

Press POWER BASSO.

The sound mode of the TV program or the video input changes to the POWER BASSO sound.

To restore the previous sound mode

Press POWER BASSO again.

Note

• You can select any of the surround sound modes (HYPER SURROUND) to cancel the POWER BASSO sound.

POWER

BASSO

POWER BASSO: ON

Operations

A / V CONTROL DYNAMIC

SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

Description of adjustable items

Select To

MOVIE Listen to a sound that emphasizes the bass

audio effect of movie theater.

MUSIC Listen to a dynamic and clear sound that

emphasizes the low and high audio effect.

NEWS〈BBE〉 Listen to a sound that emphasizes voice. HALL〈SRS〉 Listen to a sound that spreads out over a

large area, giving the feeling of being at a concert hall.

SPACE Listen to a monaural sound that gives a

stereo-like effect.

OFF Turn off the surround sound.

Notes

• The BBE is manufactured by Sony Corporation under license from BBE Sound, Inc. It is covered by U.S. Patent No. 4,638,258 and No. 4,482,866. The word “BBE” and the BBE symbol are the trademarks of BBE Sound, Inc.

• The (r)® SRS (SOUND RETRIEVAL SYSTEM) is manufactured by Sony Corporation under license from SRS Labs, Inc. It is covered by U.S. Patent No. 4,748,669. The word “SRS” and the SRS symbol (r) are registered trademarks of SRS Labs, Inc.

Listening to the surround sound (HYPER SURROUND)

ENTER

GAME MODE HYPER SURROUND:

OFF MONITOR

AV OUT:

FEAT URES

ENTER

The HYPER SURROUND feature enables you to enjoy a surround sound effect that is like being in a concert hall or movie theater when receiving stereo signals.

Press MENU.

Press V or v to move the cursor (z) to the FEATURES MENU (

) , and press ENTER.

Press V or v to move the cursor (z) to HYPER SURROUND, and press ENTER.

Press V/b/v/B to select MOVIE, MUSIC, NEWS〈BBE〉, HALL〈SRS〉 or SPACE, and press ENTER.

n MOVIE n MUSIC n NEWS〈BBE〉

OFF N SPACE N HALL〈SRS〉 N

For details on each item, see “Description of adjustable items“ below.

Press MENU to return to the normal screen.

– 11 –

KV -LX34M50

RM-871

Operations

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

To restore the normal screen

Press PROGR INDEX again or

. You can also select PROGR INDEX or PIP : OFF from the PIP menu, and press ENTER to restore the normal screen.

To view multiple programs on the nine sub screens using the menu

Press MENU.

Press V or v to move the cursor (z) to the

PIP menu (

), and press ENTER.

Make sure the cursor (z) appears beside PROGR INDEX, and press ENTER.

Notes

• You can change the position of the nine sub screens using the

PIP menu (as described in “Changing the position of the PIP screen” on page 23).

• You can hear the sound of the main screen when viewing

multiple programs on the nine sub screens.

• You can use the number buttons on the remote commander to

change the program position of the main screen when viewing multiple programs on the nine sub screens.

Viewing multiple programs at the same time (PROGRAM INDEX)

The PROGRAM INDEX feature allows you to view all the preset TV programs and the video inputs on the nine sub screens within the main screen at the same time.

You can view multiple programs on the nine sub screens using the button on the remote commander or the menu.

Press PROGR INDEX.

The first nine preset programs appear on the nine sub screens.

To view the next or the previous nine preset programs on the nine sub screens

Press PROGR +/– on the remote commander or the TV.

To select the program you want to watch directly after viewing multiple programs on the nine sub screens

Press the number buttons, …

, or press

V/b/v/B to move the cursor (>>>) that appears on the first screen to the screen of the program you want to watch, and press ENTER.

PROGR

INDEX

123

456

789

>>>

123

456

789

10 11 12

V1 V2 V3

123

>>> >>>

PIP

PIP: OFF

STROBE POSI T I ON:

PROGR IND EX

ENTER

Operations

With the Picture-in-Picture (PIP) feature, you can display a sub screen within the main picture of different TV programs or video inputs.

Displaying the PIP screen

You can display the PIP screen using the button on the remote commander or the menu.

Press

Selecting a TV program or video input in the PIP screen

To select a TV program, press V or v, and press ENTER. To select a video input, press

on the remote

commander or … on the TV.

To display the PIP screen using the menu

Press MENU.

Press V or v to move the cursor (”) to the

PIP menu (

), and press ENTER.

Press V or v to move the cursor (”) to PIP, and press ENTER.

Press V/b/v/B to select ON, and press ENTER.

Press MENU to return to the normal screen.

Using the Picture-inPicture (PIP) features

Displaying frameby-frame pictures (STROBE)

You can watch a slow motion movement of the main screen picture which is displayed frame-by-frame on the nine sub screens within the main screen.

Press MENU.

Press V or v to move the cursor (z) to the

PIP menu (

), and press ENTER.

Press V or v to move the cursor (z) to STROBE, and press ENTER.

To restore the normal screen

Select STROBE again or PIP : OFF from the PIP menu, and press ENTER. You can also press ;, …

, PROGR +/–, or

restore the normal screen.

Notes

• You can change the position of the nine sub screens using the PIP menu (as described in "Changing the position of the PIP screen" on page 23).

• You can hear the normal sound when using the STROBE feature.

ENTER

PIP

PIP: OFF

STROBE POSI T I ON:

PROGR IND E X

ENTER

;

…

V/v/ENTER

8 0

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

– 12 –

KV-LX34M50

RM-871

Operations

A / V CONTROL DYNAMIC

SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

Swapping pictures between the main and PIP screens

Press

Freezing the PIP screen

Press .

The PIP screen will freeze.

To restore the normal screen

Press

again.

Notes

• When you display a video input on the PIP screen at an abnormal speed, the picture may be noisy depending on the VCR.

• If you display different color systems on the main screen and the PIP screen, the size of the PIP screen may be different and the PIP picture may be noisy. This does not indicate a malfunction of the TV.

Changing the position of the PIP screen

Press MENU.

Press V or v to move the cursor (”) to the PIP menu (

), and press ENTER.

Press V or v to move the cursor (z) to POSITION, and press ENTER.

Press V/b/v/B to select the position you want, and press ENTER.

Press MENU to return to the normal screen.

PIP

PIP: OFF

STROBE POSI T I ON:

PROGR IND E X

ENTER ENTER

ENTER

Operations

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

To restore the normal picture and sound modes

Press ;, …

, or PROGR +/–.

Notes

• If you press the GAME button when the TV is in the standby mode, the TV turns on automatically and the picture and sound change to the mode that is suitable for a video game.

• To display a video game screen, connect the video game equipment to the … 3 (VIDEO 3 INPUT) jacks at the front of the TV or the … (VIDEO IN) 3 jacks at the rear of the TV.

The GAME MODE feature enables you to view a video game screen in the optimum mode that gives soft picture and dynamic sound effect.

You can display a video game screen using the button on the remote commander or the menu.

Press GAME.

The picture and sound change to the mode that is suitable for a video game.

To view a video game screen using the menu

Press MENU.

Press V or v to move the cursor (z) to the

FEATURES menu (

), and press ENTER.

Make sure the cursor (z) appears beside GAME MODE, and press ENTER.

Viewing a video game screen (GAME MODE)

GAME

GAME MODE HYPER SURROUND:

OFF MONITOR

AV OUT:

FEAT URES

ENTER

– 13 –

KV -LX34M50

RM-871

Operations

Customizing the TV

Using the AV OUT (advanced rec-out) terminal

You can select the output signal from the Ú (MONITOR/TV OUT) jacks at the rear of the TV. However, the signals of the PROGRAM INDEX, STROBE, PIP modes cannot be output even though MONITOR is selected.

Press MENU.

Press V or v to move the cursor (z) to the FEATURES menu (

), and press ENTER.

Press V or v to move the cursor (z) to AV OUT, and press ENTER.

Press V/b/v/B to select the output signal, and press ENTER.

Select To

TV Output the signal of the TV broadcast.

MONITOR Output the signal of the picture you are

watching as a main picture.

Note

• Do not change the channel while recording with a VCR

through the Ú (MONITOR/TV OUT) jacks. If you change the channel, it also changes the channel you are recording.

A / V CONTROL

DYNAMIC SOFT

STANDARD PERSONAL

VI DEO AD JUST AUDI O AD JUST

GAME MODE HYPER SURROUND:

OFF MONITOR

AV OUT:

FEAT URES

ENTER

Operations

Troubleshooting

Good picture Noisy sound

/Check the TV system (TV SYS) setting.

No picture No sound

/Press u. /Press U to turn off the TV for about five

seconds and then turn it on again.

/Check the power cord connection. /Check the antenna connection. /Check the VCR connections.

Good picture No sound

/Press Á +. /Press ¤.

No color

/Adjust the COLOR level in the VIDEO

ADJUST menu of the PERSONAL option.

/Check the color system (COL SYS) 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.

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 Sony dealer or authorized service center.

Snowy picture Noisy sound

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

and on the wall.

/Check the TV system (TV SYS) setting. /Check the ATT (attenuator) 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.

Additional Information

– 14 –

KV-LX34M50

RM-871

Getting Started

WARNING

• Dangerously high voltages are present inside the TV.

• Operate the TV only at 110-240 V AC.

• Do not open the cabinet and the rear cover of the TV. Refer servicing to qualified personnel.

• 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 block the ventilation openings.

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

• Do not install the TV in hot, humid or excessively dusty places.

• Do not install the TV where it may be exposed to mechanical vibrations.

• Do not keep the TV plugged in if you are not going to use it for several days.

• Do not pull the power cord to disconnect the TV. Pull it out by the plug.

• Use only the supplied screws (as shown on page 2) to fasten the TV to the TV stand or to stabilize the TV against a wall or a pillar. Use of other screws may damage the TV.

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.

Notes

• When you turn 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 U or u on the TV to turn off the TV for five minutes and then turn it on again.

– 15 –

KV -LX34M50

RM-871

SECTION 2

DISASSEMBLY

2-1. 3D SPEAKER BOX REMOVAL

Note: Remove 3D SPEAKER BOX before you remove REAR COVER.

2-3. SPEAKER REMOVAL

2-2. REAR COVER REMOVAL

3 Connector

2 3D speaker box

1 Three screws (step hilo tapping)

2-4. CHASSIS ASSY REMOVAL

Two screws (washer head) (+BVTP 4 × 16)

Speaker brock assy

Three screws (+BVTP 4 × 16)

Ten screws (+BVTP 4 × 16)

Chassis assy

Two claws

– 16 –

KV-LX34M50

RM-871

2-5. SERVICE POSITION 2-6. P1 BOARD REMOVAL

2-7. P2 AND S1 BOARDS REMOVAL

One screw (washer head) (+P 3 × 12)

PC board holder

Main bracket assy

3PCB holder

P1 Board

2One claw

P1 Board

Extension Board (3-702-715-01)

• Prepare the above extension board (3-702-715-01) for measurement.

1Screw (Washer head) (+P 3×12)

1S1 Board

3P2 Board

2P-P Cable

S1 Board

Extension Board (3-702-716-01)

• Prepare the above extension board (3-702-716-01) for adjustment.

– 17 –

KV -LX34M50

RM-871

2-8. B3 AND DF BOARDS REMOVAL 2-10. H5 AND K BOARDS REMOVAL

1 B3 board

2 DF board

2-9. A AND D BOARDS REMOVAL

2Five screws (+BVTP 3×12)

4A Board

3Three claws

5Four screws

(+BVTP 3×12)

1Four connectors

7D Board

6Four claws

$ Two claws

% K board

# One connector

7 One connector

1 Two connectors

" Three connectors

5 Three connectors

9 Screw (+BVTP 3 × 12)

! H5 board

3 F1 board

8 Two claws

2 Two claws

4 Two flat cable

6 Two connectors

2-11. DGC REMOVAL

5 DGC

3 Seven clamps

1 Four nuts

2 CRT shield

4 Seven clamps

6 DGC

9 H6 board

8 H6 blacket

7 Claw

– 18 –

KV-LX34M50

RM-871

2-12. SWITCH BLOCK REMOVAL

2-13. PICTURE TUBE REMOVAL

2 Holder panel

1 Loosen screw (+BV 3 × 25)

3 Switch block top

6 Two nuts (special CRT)

8 C1 board

9 Neck assy

! Deflection yoke

4 Anode cap

Two screws (waher head +P4 × 16)

2 Speaker block assy (L)

" Picture tube

Cushion

2 Speaker block assy (R)

3 H6 block assy

Two screws (washer head +P 4 × 16)

6 Two nuts (special CRT)

5 Chassis assy

7 DGC with CRT shield

+ 39 hidden pages

Sony TRINITRON KV-LX34M50 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual