Sony KLV26S400A Schematic

REVISION HISTORY

EG1L (GA)

CHASSIS

MODEL

KLV-26S400A KLV-32,32/H/S S400A KLV-37S400A

NO. SUFFIX DATE SUPP / CORR DESCRIPTION

1 -01 2008/3 _ _ 1st Issue

PA RT NO. : 9-872-993-02

2 -02 2008/4 _ _ New model addition. (Page 37)

SERVICE MANUAL

EG1L (GA)

CHASSIS

MODEL COMMANDER DEST.

KLV-26S400A

KLV-32S400A

RM-GA011 E, EA, India, ME,

New Zealand, Philippines, Saudi Arabia, South Africa, Thailand, Vietnam

RM-GA011 E, EA, India, Iran, ME,

New Zealand, Philippines, Saudi Arabia, South Africa, Thailand, Vietnam

MODEL COMMANDER DEST.

KLV-32S400A/H

(Gun-Metallic Silver) Philippines,

KLV-32S400A/S

(Silver)

KLV-37S400A

RM-GA011 India, ME,

South Africa, Thailand

RM-GA011 E, Saudi Arabia

RM-GA011 E, EA, India,

Iran, ME, New Zealand, Philippines, Saudi Arabia, South Africa, Thailand, Vietnam

KLV-26S400A KLV-32,32/H/S S400A KLV-37S400A

RM-GA011

LCD COLOR TV

KLV-26,32,32/H/S,37 S400A

RM-GA011

Section Title Page

1. SAFETY NOTES

1-1. Caution Handling of LCD Panel ..................................... 3

1-2. Safety Check Out ............................................................. 3

1-3. Leakage Test .................................................................... 3

1-4. WARNING ! .................................................................... 3

1-5. Lead Free Information ..................................................... 4

2. SELF DIAGNOSTIC FUNCTION

2-1. Overview of Control Buttons .......................................... 5

2-2. LED Display Specification.............................................. 5

2-3. LED Display Control ....................................................... 5

2-4. LED Pattern ..................................................................... 5

2-5. Standby LED Error Display ............................................ 6

3. DISASSEMBLY

3-1. Rear Cover Removal........................................................ 7

3-2. Stand Assy Removal ........................................................ 7

3-3. HG4 (KLV-26,32,32/H/S S400A) and

HG4A (KLV-37S400A) Boards Removal....................... 8

3-4. BG1 Board Removal ....................................................... 8

3-5. GP Board Removal (KLV-26,32,32/H/S S400A) ........... 9

3-6. Power Unit (G2D) Board Removal (KLV-37S400A) ..... 9

3-7. Frame Removal ................................................................ 9

3-8. Speaker Removal ............................................................. 9

3-9. LCD Panel Removal ...................................................... 10

4. WIRE DRESSING

4-1. (KLV-26S400A) ............................................................. 11

4-2. (KLV-32,32/H/S S400A) ............................................... 14

4-3. (KLV-37S400A) ............................................................. 17

Section Title Page

5. SERVICE ADJUSTMENTS

5-1. Accessing Diagnostic Menu .......................................... 21

5-2. Aging ............................................................................ 21

5-3. Accessing Service Menu ............................................... 21

5-4. Resetting the User Menu- Factory Reset ...................... 22

5-5. White Balance Adjustment............................................ 22

5-6. Board & Panel Replacement ......................................... 23

6. DIAGRAMS

6-1. Block Diagram ............................................................... 24

6-2. Circuit Board Location .................................................. 24

6-3. Schematic Diagram ....................................................... 25

6-4. Printed Wiring Boards ................................................... 25

6-5. Semiconductor ............................................................... 25

7. EXPLODED VIEWS

7-1. (KLV-26S400A) ............................................................. 26

7-1-1. Rear Cabinet and Stand Assy ............................ 26

7-1-2. Chassis-1 ............................................................ 27

7-1-3. BG1, GP, HG4 Boards, Speakers,

Bezel Assy and LCD Panel ............................... 28

7-2. (KLV-32,32/H/S S400A) ............................................... 29

7-2-1. Rear Cabinet and Stand Assy ............................ 29

7-2-2. Chassis-1 ............................................................ 30

7-2-3. BG1, GP, HG4 Boards, Speakers,

Bezel Assy and LCD Panel ............................... 31

7-3. (KLV-37S400A) ............................................................. 32

7-3-1. Rear Cabinet and Stand Assy ............................ 32

7-3-2. Chassis-1 ............................................................ 33

7-1-3. BG1, Power Unit (G2D), HG4A Boards,

Speakers, Bezel Assy and LCD Panel ............... 34

8. ELECTRICAL PARTS LIST .............................................. 35

OPERATING INSTRUCTIONS

– 2 –

SECTION 1

SAFETY NOTES

KLV-26,32,32/H/S,37 S400A

RM-GA011

1-1. Caution Handling of LCD Panel

When installing the LCD Panel, make sure you are grounded with a wrist band. When installing the LCD Panel on the wall, the panel must be secured using the 4 mounting holes on the rear cover.

1) Do not press the panel or frame edge to avoid the risk of electric shock.

2) Do not scratch or press on the panel with any sharp objects.

3) Do not leave the module in high temperature or in areas of high humidity for an extended period of time.

4) Do not expose the LCD panel to direct sunlight.

5) Avoid contact with water. It may cause short circuit within the module.

6) Disconnect the AC adapter when replacing the backlight (CCFL) or inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms)

7) Always clean the LCD panel with a soft cloth material.

8) Use care when handling the wires or connectors of the inverter circuit. Damaging the wires may cause a short circuit.

9) Protect the panel from ESD to avoid damaging the electronic circuit (C-MOS).

1-2. Safety Check-Out

After correcting the original service problem, perform the following safety checks before releasing the set to the customer:-

1-3. Leakage Test

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis must not exceed 0.5mA (500 microamperes). Leakage current can be measured by any one of the three methods:-

1. A commercial leakage tester such as the SIMPSON 229 or RCA WT-540A. Follow the manufacturers instructions to use those instructions.

2. A battery-operated AC milliampmeter. The DATA PRECISION 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery operated AC voltmeter. The 'limit' indication is 0.75V so analog meters must have an accurate low voltage scale. The SIMPSON'S 250 and SANWA SH-63TRD are examples of passive VOMs that are suitable. Nearly all battery operated digital multimeters that have a 2 VAC range are suitable. (see Figure 1.)

To Exposed Metal Parts on Set

0.15 µF

1.5 k

Ω

AC Voltmeter (0.75 V)

1) Check the area of your repair for unsoldered or poorly soldered connections. Check the entire board surface for solder splashes and bridges.

2) Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors.

3)Check all control knobs, shields, covers, ground straps and mounting hardware have been replaced. Be absolutely certain you have replaced all the insulators.

4) Look for unauthorized replacement parts, particularly transistors that were installed during a previous repair. Point them out to the customer and recommend their replacement.

5) Look for parts which, though functioning show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

6) Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.

7) Check the antenna terminals, metal trim, "metallized" knobs, screws and all other exposed metal parts for AC leakage. Check leakage test as described next.

Earth Ground

Figure 1. AC voltmeter to check AC leakage

1-4. WARNING !

SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY SHADING AND MARK ! ON THE EXPLODED VIEWS ARE CRITICAL FOR 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 FOR SAFE OPERATION ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS SUSPECTED.

– 3 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

1-5. Lead Free Information

The circuit boards used in these models have been processed using Lead Free Solder. The boards are identified by the LF logo located close to the board designation.

Figure 2: LF logo

Figure 3: LF logo on circuit board

The servicing of these boards requires special precautions. It is strongly recommended to use Lead Free Solder material in order to guarantee optimal quality of new solder joints. Lead Free Solder is available under the following part numbers:-

rebmuntraP retemaiD skrameR

91-500-046-mm

02-500-046-7m4.0Kg05.0

12-500-046-7m5.0Kg05.0

22-500-046-7m6.0Kg52.0

32-500-046-7m8.0Kg00.1

42-500-046-7m0.1Kg00.1

52-500-046-7m2.1Kg00.1

62-500-046-7m6.1Kg00.1

3.0Kg52.0

Due to high melting point of Lead Free Solder, the soldering iron tip temperature needs to be set to 370 degrees centigrade. This requires soldering equipment capable of accurate temperature control coupled with a good heat recovery characteristics.

For more information on the use of Lead Free Solder, please refer to

http://www.sony-training.com

– 4 –

SECTION 2

SELF DIAGNOSTIC FUNCTION

KLV-26,32,32/H/S,37 S400A

RM-GA011

2-1. Overview of Control Buttons

MENU TV/VIDEO VOLUME CHANNEL

PICTURE OFF/

TIMER

2-4. LED Pattern

When safety shutdown occurs, Standby LED display reports the

POWER

cause by using the lightning patterns as indicated below.

0.3 sec

2.0 sec 2.0 sec

Example:

The figure above shows LED display when SHUTDOWN is caused by DC_ALERT 2. It repeats flashing for a specified number of times in 0.3sec/ cycle and has a 2 seconds interval of lighting off. Please note that a 2 seconds interval of lighting off is fixed regardless of abnormal state types.

REMOTE/LIGHT SENSORSTANDBY POWER

2-2. LED Display Specification

LED Typ e Description

POWER Green: LED

Remark

Green lights at power ON.

STANDBY Red: One LED Red lights during standby.

Green lights during Picture OFF and amber lights

Timer

Green/Amber : Two LEDs

during Timer activation.

2-3. LED Display Control

Status

Power LED

Display

Standby LED

POWER ON Green lights OFF

STANDBY

OFF Red lights

Failure

Remark

Microcomputer is in a normal state.

Microcomputer is

in a sleep state.

Classify the trouble causes by the no. of red.

– 5 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

2-5. Standby LED Error Display

Perform below countermeasures according to Standby LED blinking times.

Blinking times Error Countermeasure

2 DC_DET (12V Main Voltage) Replace either/both z BG1 board

z GP(26",32")/

Power Unit(G2D)(37") board

3 DC_ALERT 1 Replace BG1 board.

4 DC_ALERT 2 Replace BG1 board.

5 DC_ALERT 3 Replace BG1 board.

6BACKLIGHT/ Replace BG1 board.

INVERTER ERROR

7 INTERNAL TEMP Replace GP(26",32")/Power Unit(G2D)(37") board

ERROR

8AUDIO ERROR Replace either/both z BG1 board

z GP(26",32")/

Power Unit(G2D)(37") board

z Speaker

9 Not used for GA —

10 Not used for GA —

11 NVM ERROR Replace either/both z BG1 board

z GP(26",32")/

Power Unit(G2D)(37") board

12 IIC ERROR Replace BG1 board.

13 BALANCER ERROR Replace BG1 board.

14 HDMI ERROR —

Note: Each of the above blinking repeats every 2 seconds.

– 6 –

SECTION 3

DISASSEMBLY

KLV-26,32,32/H/S,37 S400A

RM-GA011

3-1. Rear Cover Removal

(KLV-26S400A)

4 Two screws

(+PSW M3 X 5)

1 Fifteen screws

(+BVTP2 4 X 16)

2 Two screws (+BVTP 3 X 12)

3 One screw (+PSW M5 X 8)

5 Lift to remove Rear Cover

3-2. Stand Assy Removal

(KLV-26S400A)

(KLV-32,32/H/S S400A) (KLV-32,32/H/S S400A)

4 Two screws

(+PSW M3 X 5)

1 Sixteen screws

(BVTP2 4 X 16)

2 Two screws

(+BVTP 3 X 12)

3 One screw

(+PSW M5 X 8)

1 Three screws (+PSW M5 X 16)

2 Stand assy

1 Three screws

(+PSW M5 X 16)

2 Stand assy

(KLV-37S400A)

4 Two screws

(+PSW M3 X 5)

1 Seventeen screws

(+BVTP2 4 X 16)

3 Two screws

(+BVTP 3 X 12)

2 Four screws

(+PSW M5 X 12)

5 Lift to remove

Rear Cover

5 Lift to remove

Rear Cover

(KLV-37S400A)

1 Three screws

(+PSW M5 X 20)

2 Stand assy

– 7 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

3-3. HG4 and HG4A Boards Removal 3-4. BG1 Board Removal

(KLV-26S400A)

Bezel assy

(KLV-32,32/H/S S400A)

2 Harness with connector

1 Two screws (+BVTP2 4 X 16)

3 LCD panel

5 Two screws

(+BVTP2 3 X 12)

6 HG4 board

4 One connector

Guide Light

2 Harness with connector

1 Two screws (+BVTP2 4 X 16)

3 LCD panel

5 Two screws

(+BVTP2 3 X 12)

6 HG4 board

4 One connector

Guide Light

(KLV-26S400A)

1 One screw (+PSW M3 X 5)

3 Six connectors

5 One screw

(+BVST 3 X 8)

Bezel assy

(KLV-32,32/H/S S400A)

1 One screw (+PSW M3 X 5)

3 Six connectors

5 One screw

(+BVST 3 X 8)

Bracket Side Jack Assy

2 Nine screws (+BVST 3 X 8)

4 BG1 board

Two screws (+BVST 3 X 8)

Main Bracket

Bracket Side Jack Assy

2 Nine screws (+BVST 3 X 8)

4 BG1 board

Two screws (+BVST 3 X 8)

Main Bracket

Bezel assy

(KLV-37S400A)

Bezel assy

1 Six screws

(+BVTP2 4 X 16)

3 LCD panel

2 Harness

with connector

5 Two screws (+BVTP2 3 X 12)

6 HG4A board

4 One connector

Guide Light

Bezel assy

(KLV-37S400A)

1 One screw (+PSW M3 X 5)

3 Six connectors

Bezel assy

Bracket Side Jack Assy

2 Nine screws (+BVST 3 X 8)

4 BG1 board

Two screws (+BVST 3 X 8)

Main Bracket

– 8 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

3-5. GP Board Removal

(KLV-26,32,32/H/S S400A)

1 Four screws (+PSW 3SG)

2 One connector

3 GP board

G1 Bracket

3-6. Power Unit (G2D) Board Removal

(KLV-37S400A)

2 Six screws (+BVST 3 X 8)

3 G2 Bracket, Upper

Bezel Assy

1 Power Unit (G2D Board)

(KLV-32,32/H/S S400A)

4 One screw (+PSW M4 X 8)

5 One screw (+PSW M4 X 8)

2 Two screws (+PSW M4 X 8)

Vesa Frame (Top) Assy

6 One screw (+PSW M4 X 8)

7 One screw (+BVTP2 4 X 16)

Frame Spine (32L)

7 One screw (+BVTP2 4 X 16)

(KLV-37S400A)

4 Two screws (+PSW M4 X 8)

5 Four screws (+PSW M4 X 8)

6 Two screws (+BVTP2 4 X 16)

Vesa Frame (Top) Assy

Frame Spine (37L)

Frame Spine (37R)

3 Two screws (+PSW M5 X 8)

1 Two screws (+BVTP2 4 X 16)

Cover Under

3 One screw (+PSW M4 X 8) 4 One screw (+PSW M4 X 8)

3 One screw (+PSW M4 X 8) 5 One screw (+PSW M4 X 8)

Frame Spine (32R)

6 One screw (+PSW M4 X 8)

8 Two screws (+BVTP2 4 X 16) 9 Four screws (+PSW M4 X 8)

2 Three screws (+PSW M4 X 8)

1 One screw (+BVTP2 4 X 16)

Frame Bottom

Cover Under

2 Three screws (+PSW M4 X 8)

Vesa Frame (Bottom) Assy

3 Two screws (+PSW M5 X 8)

7 Two screws (+BVTP2 4 X 16)

Frame Bottom

8 One screw (+PSW M4 X 8)

3-7. Frame Removal

(KLV-26S400A)

2 Two screws (+PSW M4 X 8)

Vesa Frame (Top) Assy

3 One screw (+PSW M4 X 8)

4 One screw (+PSW M4 X 8)

5 One screw (+BVTP2 4 X 16)

Frame Spine (L)

5 One screw (+BVTP2 4 X 16)

1 One screw (+BVTP2 4 X 16)

Cover Under

4 One screw (+PSW M4 X 8)

3 One screw (+PSW M4 X 8)

Frame Spine (R)

6 Two screws (+BVTP2 4 X 16)

Frame Bottom

3-8. Speaker Removal

(KLV-26S400A)

Speaker

Bezel assy

– 9 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

(KLV-32,32/H/S S400A)

Bezel assy

(KLV-37S400A)

Speaker

(KLV-32,32/H/S S400A)

Bezel assy

(KLV-37S400A)

2 Six screws (+BVTP2 4 X 16)

2 Harness with connector

1 Two screws (+BVTP2 4 X 16)

3 Lift to remove LCD panel

1 Harness with connector

Bezel assy

3-9. LCD Panel Removal

(KLV-26S400A)

2 Harness with connector

1 Two screws (+BVTP2 4 X 16)

3 Lift to remove LCD panel

zel assy

3 Lift to remove LCD panel

Bezel assy

– 10 –

4-1.(KLV-26S400A)

SECTION 4

WIRE DRESSING

KLV-26,32,32/H/S,37 S400A

RM-GA011

CAUTION :

1. Do not overpull the wires during dressing

--> avoid disconnection of wires.

2. Make sure wires are kept away from sharp edges, heatsinks & other high-temperature parts.

4-1-1. Wire Dressing Overview for Non-CISPR model.

4-1-3. Dress LVDS cable with Sheet Core C. (For Non-CISPR model)

4-1-2. Wire Dressing Overview for CISPR model.

4-1-4. Dress LVDS cable with Sheet Core C & Shield Tape and screw LVDS cable's clamp on main bracket. (For CISPR model)

LVDS cable

Datum

Sheet Core C

Make sure LVDS connector fully inserted with correct direction as shown.

Shield Tape

Sheet Core C

Screw

LVDS cable

LVDS cable's

clamp

– 11 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-1-5. Dress Connector Assy 13P at G1 bracket's hook,

Connector assy 13P

4-1-7. Dress Connector Assy 14P+20P with Slide Clamp (quantity: 2)

4-1-6. Dress Connector Assy 14P+20P at G1 bracket's hook.

Connector assy 14P+20P

4-1-8. Dress Connector Assy 14P+20P on top of Connector Assy.

Connector assy 14P+20P

4-1-9. Dress Connector Assy 14P+20P & Speaker Wire with Sheet Core C (quantity: 2).

Connector assy 14P+20P

Sheet Core C

Datum

Connector assy 14P+20P

Pull wire straight

Connector assy 13P

4-1-10. Apply Sheet Core C on LCD panel and dress Connector Assy 14P+20P & Speaker Wire with Sheet Core C.

Datum

Speaker Wire

Caution : Pull away from screw boss

Datum

Sheet Core C

Connector assy 14P+20P

Caution: Make sure wire not over this line.

Datum

Speaker Wire

Screw boss

– 12 –

KLV-26,32,32/H/S,37 S400A

4-1-11. Dress Speaker Wire(L) with LCD tape. 4-1-12. Dress Connector Assy 14P+20P with

LCD tape.

RM-GA011

LCD tape

Screw boss

Caution : Pull away from screw boss

Datum

Speaker Wire

4-1-13. Install AC Cord Holder on AC Power Cord. (For Non-CISPR model)

AC Cord holder

AC Power Cord

130mm

Connector assy 14P+20P

Datum

LCD tape

4-1-14. Install AC Cord Holder on AC Power Cord. (For CISPR model)

AC Cord holder

AC Power Cord

130mm

70mm

Ferrite Core

Cable tie

Note: Make sure tighten cable tie and cut excess part.

– 13 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-2. (KLV-32,32/H/S S400A)

4-2-1. Wire Dressing Overview for Non-CISPR model

4-2-3. Dress LVDS Cable with Sheet Core C (quantity: 2). (For Non-CISPR model)

4-2-2. Wire Dressing Overview for CISPR model

Make sure LVDS connector fully inserted with correct direction as shown.

Use UL tape

Use UL tape location as guide line

UL Tape

LVDS cable

Datum

Sheet Core C

Datum

– 14 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-2-4. Dress LVDS cable with Sheet Core C & Shield Tape. (For CISPR model)

Apply tape at the

Shield Tape

Sheet Core C

middle of this

area.

Datum

LVDS cable

Datum

4-2-6. Dress Connector Assy 13P at G1 Bracket's hook.

4-2-5. Screw LVDS cable's clamp on main bracket. (For CISPR model)

LVDS cable

LVDS cable's clamp

Screw

4-2-7. Dress Connector Assy 14P + 20P at Bracket's hook (quantity: 5).

Connector assy 13P

4-2-8. Dress Connector Assy 14P + 20P with Slide Clamp (quantity: 2)

Connector assy 14P+20P

4-2-9. Dress Connector Assy 14P+20P on top of Connector Assy 13P

Connector assy 14P+20P

– 15 –

Pull wire straight

Connector assy 13P

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-2-10. Dress Connector Assy 14P+20P & Speaker wire with Sheet Core C (quantity: 2)

4-2-11. Apply Sheet Core C on LCD Panel and dress Connector Assy 14P+20P & Speaker Wire with Sheet Core C and Slide Clamp.

Speaker Wire

Connector assy 14P+20P

Sheet Core C

Datum

Sheet Core C

Connector assy 14P+20P

Speaker Wire

Caution : Pull away from screw boss

Screw boss

4-2-12. Dress Speaker Wire (L) with LCD tape. 4-2-13. Dress Connector Assy 14P+20P with

LCD tape.

Datum

LCD tape

Caution : Pull away from screw boss

Screw boss

Speaker Wire

4-2-14. Install AC Cord Holder on AC Power Cord. (For Non-CISPR model)

AC Cord holder

AC Power Cord

170mm

Caution : Pull wire until cannot

Connector assy 14P+20P

Datum

LCD tape

reach sharp edge area when apply LCD tape.

4-2-15. Install AC Cord Holder on AC Power Cord. (For CISPR model)

AC Cord holder

AC Power Cord

70mm

170mm

– 16 –

Ferrite Core

Cable Tie

Note: Make sure tighten cable tie and cut excess part.

4-3. (37S400A)

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-3-1. Wire Dressing Overview for Non-CISPR model.

4-3-3. Dress LVDS cable with G2 bracket (upper)'s hook. (For Non-CISPR model)

Make sure LVDS connector fully inserted with correct direction as shown.

LVDS cable

4-3-2. Wire Dressing Overview for CISPR model.

4-3-4. Dress LVDS cable with Sheet Core C. (For Non-CISPR model)

Datum

LVDS cable

G2 Bracket (upper)

4-3-5. Dress LVDS cable with Sheet Core C (quantity 2) & Shield Tape (For CISPR model)

Datum

Shield Tape

LVDS cable

Datum

Sheet Core C

4-3-6. Screw LVDS Cable's Clamp on main bracket. (For CISPR model)

LVDS cable

Screw

LVDS cable's clamp

Sheet Core C

– 17 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-3-7. Apply Sheet Core C on LCD panel and dress Connector Assy 14P+20P & Speaker Wire with sheet core C.

Sheet Core C

Datum

Connector assy 14P+20P

Datum

Follow White UL tape as guide to apply tape

Speaker Wire

Caution : Pull away from screw boss

Screw boss

4-3-8. Dress Connector Assy 14P+20P & Speaker wire with Sheet Core C (quantity:2).

Datum

Dress wire along panel edge

Sheet Core C

Connector assy 14P+20P

Speaker Wire

Dress wire along panel edge

Sheet Core C

– 18 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-3-9. Dress Connector Assy 14P+20P with Slide Clamp (quantity: 2)

Connector assy 14P+20P

4-3-11. Dress Connector Assy 14P+20P with LCD tape.

4-3-10. Dress Connector Assy 14P+20P on top of Connector Assy 13P.

Connector assy 14P+20P

Pull wire straight

Connector assy 13P

4-3-12. Dress Connector Assy 14P+20P at G2 bracket (upper)'s hook (quantity: 7)

Connector assy 14P+20P

Datum

LCD tape

4-3-13. Dress Connector Assy 14P+20P with Sheet Core C.

Connector assy 14P+20P

Datum

Sheet Core C

Connector assy 14P+20P

4-3-14. Dress Speaker wire (L) with LCD tape.

Datum

LCD tape

Make sure wire dress underneath spine frame

Speaker Wire

Caution : Pull away from screw boss

Screw boss

– 19 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

4-3-15. Dress Connector Assy 14P+20P with LCD tape (quantity: 2)

Connector assy 14P+20P

Datum

LCD tape

Datum

4-3-17. Install AC Cord Holder on AC Power Cord. (For CISPR model)

4-3-16. Install AC Cord Holder on AC Power Cord (For Non-CISPR model)

AC Cord holder

AC Power Cord

130mm

AC Cord holder

Ferrite Core

Cable tie

AC Power Cord

70mm

130mm

Note: Make sure tighten cable tie and cut excess part.

– 20 –

ERROR

DC_DET

DC_ALERT1

DC_ALERT2

DC_ALERT3

BACKLIGHT

INTERNAL TEMP ERROR

AUDIO ERROR

NVM ERROR

IIC ERROR

BALANCER ERROR

HDMI ERROR

RESET

SECTION 5

SERVICE ADJUSTMENTS

KLV-26,32,32/H/S,37 S400A

RM-GA011

5-1. Accessing Diagnostic Menu

1. While TV set on standby, press the following sequence on the remote commander (RM-GA011).

On screen

display

Channel 5

Volume (-)

POWER

2. The following menu will appear on the screen:

Figure 1

3. To reset, select ‘RESET’ using remote commander and press

4. To quit the diagnostic menu, turn off and on the TV set.

5-2. Aging

1. Aging setting: Set no signal and monitor as aging mode.

2. Aging condition: Aging condition before white balance adjustment is as follows: Supply voltage : Rating Time : 20 minutes or over

(AGING TIMER registor setting)

Ambient Temp : 22 ~ 28 degree Brightness : Brightness is set by aging mode. Input : Set no signal except digital and

analog RF (video/component/PC).

3. LED lightning pattern during aging:

In case the AGING TIMER > 0 Green (0.5s) --> Off (0.5s) --> Green (0.5s) --> Off (0.5s) Note: Green (Power LED is ON / OFF)

5-3. Accessing Service Menu

1. While TV set on standby, press the following sequence on the remote commander (RM-GA011).

On screen

display

Channel 5 Volume (+)

POWER

2. The following menu will appear on the screen:

Service Menu

Status

W/B

Service

Figure 2

3. View Menu Listing Press the 'down' arrow button to choose white balance (W/B) and then press 'right' arrow button to view W/B adjustment items.

Service Menu

W/B

R_DRIVE

G_DRIVE

B_DRIVE

COLOR _ SAVE

Figure 3

4. Select Menu Item Press the 'up' or 'down' arrow button to select the item you want to adjust.

5. Increase/Decrease Data Value To increase the data value, press the 'right' arrow button whereas to decrease, press the 'left' arrow button.

6. Save/Cancel Data Value To save the data value changes, firstly press the 'down' arrow button to select 'COLOR SAVE' then use 'right' arrow button to select 'OK' and press the

button. To cancel the data value changes, use 'down' arrow button to select 'Cancel' and press the

button.

In case the AGING TIMER = 0 Green (3s) -->Off (3s) --> Green (3s) --> Off (3s)

Note: Green (Power LED is ON / OFF) Note: If set has been put on surface down, static electricity causes brightness surface irregularity. If such happens, turn the set over or place it in upright position for more than 30 seconds. Once surface irregularity is cleared, check the set.

– 21 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

5-4. Resetting the User Menu - Factory Reset

Note: The TEST RESET option resets all the customer adjustable data back to factory defaults.

1. While TV set on standby, press the following sequence on the remote commander (RM-GA011).

On screen

display

Channel 5 Volume (+) POWER

2. The following menu will appear on the screen:

Service Menu

Status

W/B

Service

Figure 4

3. View Menu Listing Press the 'down' arrow button to choose white balance (W/B) and then press 'right' arrow button to view W/B adjustment items.

5. Press 'down' arrow button and select 'Service'. Then press 'right' arrow button to display 'Service' category items. The below menu is displayed:

Service Menu

Service

TEST RESET

WHITE PATTERN

RED PATTERN

GREEN PATTERN

BLUE PATTERN

AUTOSET FACTORY

PRODUCTION

APC

OVER MODULATION

OPTIONS

SERIAL NUMBER EDIT

ETI1 CLEAR

ETI2 CLEAR

SHIBAURA

NORMAL

O

Cancel

Figure 7

6. Press the 'Enter' button to select 'TEST RESET' option.

7. Press 'up' arrow button to select OK and 'Enter' button to confirm.

5-5. White Balance Adjustment

Service Menu

W/B

R_DRIVE

G_DRIVE

B_DRIVE

COLOR_SAVE

Figure 5

4. Now return to Service Menu.

Service Menu

Status

W/B

Service

Figure 6

Note: The white balance need to be adjusted when BG1 board and Panel is replaced.

1. Put TV to Video 1 and step gray scale using signal generator.

2. Press 'MENU' on the remote commander to display user menu.

Favourites

Programme List

External Inputs

Settings

Figure 8

3. Select 'Setting' by pressing the 'down' arrow button.

4. While in 'Setting', press 'right' arrow button to display setting options.

– 22 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

While in Picture Menu:

5. Select 'Picture Mode' and press 'right' arrow button to display picture mode options then select 'STANDARD' and press button.

Picture

Picture Mode

Reset

Backlight

Picture

Brightness

Colour

Hue

Colour Temperature

Sharpness

Noise Reduction

MPEG Noise Reduction

Advanced Settings

Standard

Max

Cool

Medium

Figure 9

6. Next select 'Color Temperature' and press 'right' arrow button to select the option 'COOL' and press

Picture

Picture Mode

Reset

Backlight

Picture

Brightness

Colour

Hue

Colour Temperature

Sharpness

Noise Reduction

MPEG Noise Reduction

Advanced Settings

Standard

Max

Cool

Medium

8. Put the set in standby mode. (Power OFF).

9. Access the service menu.

10. The service menu displays.

Service Menu

Status

W/B

Service

Figure 12

11. Press the 'down' arrow button to choose white balance (W/B) and then press 'right' arrow button to view W/B adjustment items.

Service Menu

W/B

R_DRIVE

G_DRIVE

B_DRIVE

COLOR _SAVE

Figure 13

12. Using 10 step NTSC Gray scale with setup, adjust the white balance of the 60% shade with R_Drive and B_Drive.

13. Using the same pattern, adjust the white balance 20% with R_BKG and B_BKG.

14. 20 IRE and 60 IRE shades should have the same color.

Figure 10

7. Now select 'Advanced Setting' and using the arrow keys, set all the registers in the Advanced Setting menu OFF'.

Picture

Picture Mode

Reset

Backlight

Picture

Brightness

Colour

Hue

Colour Temperature

Sharpness

Noise Reduction

MPEG Noise Reduction

Advanced Settings

Standard

Max

Cool

Medium

Figure 11

60 IRE LEVEL20 IRE LEVEL

10 STEP

GRAY SCALE

60%

451mv

20%

188mv

SET-UP

56mv

5-6. Board & Panel Replacement

When replacing the BG1 board and Panel, make sure to readjust the W/B.

– 23 –

KLV-26,32,32/H/S,37 S400A

RM-GA011

6-1. BLOCK DIAGRAM

SECTION 6

DIAGRAMS

Due to complexity of the board, performing component level field repairs are not recommended. Complete board replacement is required if service is necessary.

6-2. CIRCUIT BOARD LOCATION

KLV-26,32,32/H/S,37 S400A

BG1 Board

Block Switch Panel

GP Board (KLV-26,32,32/H/S S400A) Power Unit (G2D Board) (KLV-37S400A)

HG4 Board (KLV-26,32,32/H/S S400A) HG4A Board (KLV-37S400A)

– 24 –

+ 56 hidden pages

Sony KLV26S400A Schematic

REVISION HISTORY

SERVICE MANUAL

TABLE OF CONTENTS

SAFETY NOTES

SELF DIAGNOSTIC FUNCTION

DISASSEMBLY

WIRE DRESSING

SERVICE ADJUSTMENTS

DIAGRAMS