Sony KLV-26NX400, KLV-32NX400, KLV-32NX500, KLV-40NX500 Service manual

HISTORY

Model Name: KLV-26/32NX400 KLV-32/40NX500 SERVICE MANUAL

Click on Page Number to display details of change

Date Part Number Description of Revisions Version

2010.06 9-883-489-01 Original Manual 1.0

2010.08 9-883-489-02

2010.08 9-883-489-03

LCD Panel Part Number Update (P18) BAA Board Part Number Update (P18)

Addition of Panel Support Part Number (P17, 18,

19)

2.0

3.0

SERVICE MANUAL

AZ1-A(5-0) CHASSIS

MODEL DEST

KLV-26NX400 (black / silver) RUSS KLV-32NX400 (black / silver) RUSS

MODEL DEST

KLV-32NX500 RUSS KLV-40NX500 RUSS

- 1 -

RM-GA018

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

TABLE OF CONTENTS

Section Title P a g e

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 and Board

Replacement Order ..........................................................6

2-6. Triage Chart .....................................................................7

3. TROUBLE SHOOTING

3-1. Flowchart ......................................................................... 8

3-1-1. No Power.......................................................................8

3-1-2. Video Problem............................................................... 9

3-1-3. Audio Problem .............................................................. 9

4. SERVICE ADJUSTMENTS

4-1. Accessing Self Diagnostic Menu .................................. 10

4-2. Accessing Service Mode ............................................... 10

4-3. GAISOU Adjustment(For Board Replacement) ........... 10

Section Title Pa ge

5. DIAGRAMS

5-1. Block Diagram............................................................... 11

5-1-1. KLV-32,40 NX500 ............................................. 11

5-1-2. KLV-26,32 NX400(S/B),

26,32 NX400(S/B)/S .........................................12

5-2. Wire Dressing and Connector Diagram ....................... 13

5-2-1. KLV-26 NX400(S/B), NX400(S/B)/S...............13

5-2-2. KLV-32 NX400(S/B),NX400(S/B)/S, NX500..14

5-2-3. KLV-40NX500...................................................15

5-3. Circuit Board Location.................................................. 16

5-3-1. KLV-26 NX400(S/B), NX400(S/B)/S...............16

5-3-2. KLV-32 NX400(S/B),NX400(S/B)/S, NX500..16

5-3-3. KLV-40NX500...................................................16

6. DISASSEMBLY, EXPLODED VIEWS AND OTHER PARTS

6-1. Disassembly & Exploded Views ................................... 17

6-1-1. KLV-26 NX400(S/B), NX400(S/B)/S................17

6-1-2. KLV-32 NX400(S/B), NX400(S/B)/S, NX500..18

6-1-3. KLV-40NX500.................................................... 19

6-2. Other Parts ..................................................................... 20

6-2-1. KLV-26 NX400(S/B), NX400(S/B)/S................20

6-2-2. KLV-32 NX400(S/B), NX400(S/B)/S, NX500..20

6-2-3. KLV-40NX500.................................................... 21

OPERATING INSTRUCTIONS

– 2 –

SECTION 1

-3-

SAFETY NOTES

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 Power 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).

10) During the repair, DO NOT leave the Power On for more than 1 hour while the TV is face down on a cloth.

KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

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.)

> 1 hour

1-2. Safety Check-Out

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

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.

8) Live chassis can cause electric shock as its connected to the AC power line. Therefore, use isolation transformer and gloves when changing parts or removing plug. Please remember high voltage is there during servicing.

9) To follow safety after servicing, please make sure the removed screws, parts and wires are as original condition.

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.

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

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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 m m m m m m m

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 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

SECTION 2

SELF DIAGNOSTIC FUNCTION

RM-GA018

2-1. Overview of Control Buttons

PROG

Power

Programme

Volume

Input select/ Enter

2-4. LED Pattern

When safety shutdown occurs, Standb y LED display reports the cause by using the lightning patterns as indicated below.

0.5 sec

3.0 sec 3.0 sec

0.5 sec

Example: The figure above shows LED display when

SHUTDOWN is caused by Balancer Error. It repeats flashing for a specified number of times in 0.5sec/ cycle and has a 3 seconds interval of lighting off. Please note that a 3 seconds interval of lighting off is fixed regardless of abnormal state types.

Remote Sensor

Picture Off/ Timer indicator

2-2. LED Display Specification

LED Typ e Description POWER Green: LED

STANDB

Timer

Y Red: One LED Red lights during standby.

Orange : One LED

Green lights at power ON.

Orange lights during Timer activation.

2-3. LED Display Control

Status

Power LED

Display

Standby LED

POWER ON Green lights OFF

STANDBY

Failure

FRed lights

OFF

Red flashes

Standby indicator

Power indicator

Remark

Microcomputer is in a normal state.

Microcomputer is

in a sleep state.

Classify the trouble causes by the no. of red blinking.

Remark

– 5 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

2-5. Standby LED Error Display and Board Replacement Order

Perform below countermeasures according to Standby LED blinking times.

Blinking times Error Countermeasure

2 Main Power Error 1) Power Unit(26”), G2LE Unit(32”),

3 DC_ALERT 1/ Audio Error/ 1) BAA board.

Motionflow Error 2) Power Unit(26”), G2LE Unit(32”),

4 Balancer Error 1) Inverter board.

(Replace either/all according to sequence)

G2HE Unit(40”) board.

2) BAA board.

G2HE Unit(40”) board.

3) TCON.

4) Speaker.

2) Panel.

3) Power Unit(26”), G2LE Unit(32”), G2HE Unit(40”) board.

4) BAA board.

5T-CON Error / Panel ID NVM Error 1) T-CON.

2) BAA board.

3) LVDS Cable.

4) Power Unit(26”), G2LE Unit(32”), G2HE Unit(40”) board.

6 Backlight Error 1) Inverter board

2) Power Unit(26”), G2LE Unit(32”), G2HE Unit(40”) board.

3) BAA board.

7Temp. Error 1) BAA board.

2) Power Unit(26”), G2LE Unit(32”), G2HE Unit(40”) board.

Note:1: Each of the above blinking repeats 3 seconds.

2. Countermeasure is list out by priority.

– 6 –

2-6. T riage Chart

No Video No Video No Video No Tuner Tuner OK No HDMI No Audio

BL OK No BL BL OK Video OK Video 1-3

OSD OK No OSD Bad

BAA board

H2LR board

H2LS

HLR3 board

SW1board

Power Unit (26")

G2LE Unit (32")

G2HE Unit (40")

T-con board

Speaker unit

RF module

Panel module

FFC cable

Joint connector

Problem No Power BAA board Balancer TCON, Panel ID Inverter Temperature No Power BAA board BAA board BAA board BAA board BAA board BAA board BAA board

Doubtful part

Few possibility

No Power

Symptom (dead set) Video distored or missing

Reference

6Blinks 7Blinks2Blinks 3Blinks 4Blinks 5Blinks

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

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– 7 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

PLEASE REFER TO PAGE 23-51 TO FOR DETAILS TROUBLESHOOTING

PLEASE REFER TO PAGE 23-51 FOR THE UPDATED TROUBLESHOOTING

RM-GA018

SECTION 3

TROUBLESHOOTING

3.1 FLOWCHART

3-1-1. NO POWER

No power

88-132Vac

Yes

110V 220V-240V

Destination

AC Cable

3.3V_DC

C16200 Pin3

on BAA board

Yes

3.3V_DC

C16200 Pin3

on BAA board

176-264Vac

Yes

Power Board

No standby3.3V

12.5V_DC

C16200 Pin10

on BAA board

Yes

BAA Board

Power Board No REG12V

– 8 –

3-1-2. VIDEO PROBLEM

PLEASE REFER TO PAGE 23-51 TO THE UPDATED TROUBLESHOOTING

Video

Problem

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

All inputs

have

problem?

Yes

Backlight Turn on?

Check LVDS harness connection between BAA board or Panel or Power board

No No No

Yes

HDMI

Problem?

BAA

Board

BAA

Board

RF/Analog

Input

Problem?

Yes

BAA

Board

Digital

Input

Problem?

Yes

BAA

Board

BAA

Board

3-1-3. AUDIO PROBLEM

Only

Speaker

out?

Yes

UI of

Audio Setting

correct? Volume,

TV Speaker

Set correctly or reset by menu

HDMI

Problem?

BAA

Board

Yes

Check

Speaker

BAA board

RF/ Analog

Input

Problem?

BAA

Board

No No

Digital

Input

Problem?

BAA

Board

BAA

Board

– 9 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

SECTION 4

SERVICE ADJUSTMENT

4-1. Accessing Self Diagnostic Menu

1. While TV on standby mode, press the following sequence on the Remote commander. < Display--> <5>--> <Vol Down>--> <Power>

Self Check 002 Main Power 001 003 Dc_Alert 000 003 Aud_Prot 000 003 MotionFlow 000 004 Balancer_Error 000 005 T-CON Error 005 Panel ID NVM Error 000 006 Backlight Error 000 007 Temp_Error 000

00009 00027 00009

Total Panel Hours

Total Hours of Operation (max 65535)

Boot Count (max 65535)

(max 65535)

Diagnostic Menu Sample

indicates no. of times an error was detected.

0 indicates no error was detected

2. To Reset Error Count & Error History Press < 8 > --> < 0 > key

3. To Reset Panel Operation Time Press < 7 > --> < 0 > key

4. To exit, turn the power off using Remote.

4-2. Accessing Service Mode

1. While TV on standby mode, press the following sequence on the Remote commander. < Display--> <5>--> <Vol Up>--> <Power>

Tuning System <[Auto]> No_Signal_Mute <[Off]> Serial Number Edit Self Diagnosis History >> LVDS Spectrum (%) <[10]> Low of HPD <[5]> VCR1 <[off]> GAISOU <[0]>

Service Mode Menu Sample

2. Use the r or R button to select the item you want to refer and press for details. Example Status information

Service Mode

Status Information >>

Test Reset <[Off]> Tuning System <[Auto]> No_Signal_Mute <[Off]> Serial Number Edit Self Diagnosis History >> LVDS Spectrum (%) <[10]> Low of HPD <[5]>

Main Micro SW Version TM0.341.012 NVM Version TD0.341 Boot Version TB0.341 Panel Version MT0000.000.0030.LT Flash PQ Version AQ Version AQ0.003

4-3. GAISOU Adjustment (For Board Replacement)

1)When new board is replaced, please confirm the color ornamental of the TV set.

2)While TV on standby mode, press the following sequence on the Remote commander. <Display>

<5> p <Vol Up> p <Power>

Tuning System <[Auto]>

Chassis Service

No_Signal_Mute <[Off]>

000 Model

Serial Number Edit Self Diagnosis History >>

002 Gaisou 00

LVDS Spectrum (%) <[10]> Low of HPD <[5]> VCR1 <[off]>

GAISOU Menu Sample

GAISOU <[0]>

Service Mode Menu Sample

3) Use the r or R button to select the GAISOU item.

Service Mode Status Information >> Test Reset <[Off]> Tuning System <[Auto]> No_Signal_Mute <[Off]> Serial Number Edit Self Diagnosis History >> LVDS Spectrum (%) <[10]> Low of HPD <[5]> VCR1 <[off]>

GAISOU <[0]>

4) The color variation table of each TV set as below:-

Case Color Model Area

Table Type Name Resolution Inch Size ID

00 Default 5-2 WXGA/FHD 40, 32,26, 22 ALL 01 Glossy Gun Metallic (back print) 3a-2 FHD 32,40,46 GA 02 Glossy Silver (back print) 3a-2 WXGA 22,26,32 GA 03 Red 3a-2 FHD 32 GA 04 Blue 3a-2 FHD 32 GA 05 Matt Gun Metallic 3a-2 FHD 32,40,46 CH 06 Flat Gun Metallic Hairline 3a-1, 3a-0.5 HFR/ FHD 32,40,46,55 ALL 07 Silver 5-0 FHD 32,40 ALL 08 Black 5-0 WXGA 26,32 ALL

Panel ID

5) For example if color is Red than should select 03 in the service mode of the TV set.

– 10 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

Video 1

MON Out

Video 1/Mon

L/R

Video 2

L/R

Component 1

/Video3

Comp1/Video3

L/R

DCC

PC/HDMI2

L/R

HDMI1

EDID

RGB

PC/HDMI3 L/R

TMDS0

DDC0

HDMI2

HDMI4

USB1

HDMI3

HDMI1

EDID

HDMI

HDMI2

EDID

HDMI3

EDID

HDMI4

EDID

TMDS2

DDC2

TMDS1

DDC1

M_I2C

RGB

Ambient

sensor

Main

NVM

16KByte

Temp

Sensor

SIRCS

LED

Line out

LPF

PWM

16Bit

Contro I/O

IF_In

MT5388

BGA

32Bit

PDD0~7

Odd Channel 8bit

Conventional INVERTER

CCFL

PANEL

8bit

(FHD)

Eve Channel 8bit

Memory

DDR2

32Mx16bits

Tu I2C

SAW

(38Mz)

Tuner

CVBS Out

L/R

CVBS1/Mon

Video1/Mon L/R

CVBS2

Video2 L/R

Yuv1/CVBS3

Comp1/Video3 L/R

CVBS In

NAND

FLASH

64MByte

CVBS

Out x 2ch

CVBS

In x 4ch

Audio

In x 7ch

YUV

In x 2ch

RGB

In x 1ch

TMDS

In x 3ch

Audio

out x 2ch

Memory

I/F

Dual

Ch LVDS

PWM

TPA3110D2

NJM2779

AMP

LED

JTAG

Hotel

UART

ECS

STBY

UART0

SIRCS

TMDSB

DDCB

TMDSA

DDCA

D+/D-

SECTION 5 DIAGRAMS

RM-GA018

5-1. BLOCK DIAGRAM

5-1-1. -KLV-32,40 NX500

– 11 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

LPF

Contro I/O

IF_In

MT5388

BGA

CVBS

Out x 2ch

CVBS

In x 4ch

Audio

In x 7ch

YUV

In x 2ch

RGB

In x 1ch

TMDS

In x 3ch

Audio

out x 2ch

Memory

I/F

Dual

Ch LVDS

CVBS Out

L/R

CVBS In

PDD0~7

Tu I2C

SAW

(38Mz)

Tuner

NAND

FLASH

64MByte

Conventional INVERTER

CCFL

PANEL

8bit

(WXGA)

Line out

PWM

16Bit

PWM

TPA3110D2

NJM2779

AMP

SIRCS

LED

JTAG

Hotel

UART

ECS

STBY

UART0

SIRCS

TMDS1

DDC1

M_I2C

RGB

Ambient

sensor

Main

NVM

16KByte

Temp

Sensor

HDMI4

USB1

HDMI3

HDMI

HDMI2

EDID

HDMI3

EDID

HDMI4

EDID

TMDSB

DDCB

TMDSA

DDCA

D+/D-

DDC0

HDMI2

HDMI1

EDID

TMDS2

DDC2

DCC

PC/HDMI2

L/R

HDMI1

EDID

RGB

PC/HDMI3 L/R

TMDS0

Video 1

MON Out

Video 1/Mon

L/R

Video 2

L/R

Component 1

/Video3

Comp1/Video3

L/R

CVBS1/Mon

Video1/Mon L/R

CVBS2

Video2 L/R

Yuv1/CVBS3

Comp1/Video3 L/R

Memory

DDR2

32Mbx16bits

Single Channel 8bit

PANEL_12C

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5-1-2.KLV-26,32 NX400(S/B), 26,32 NX400(S/B)/S

– 12 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

CAUTION :

1. Do not o v erpull the wires during dressing

--> avoid disconnection of wires.

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

5-2. WIRE DRESSING AND CONNECTOR DIAGRAM 5-2-1. KLV-26 NX400(S/B), NX400(S/B)/S

Tape

CN1/

CN100

(3)

Switch

Unit

INVERTER

(14)

CNxxxx

(14)

CN6202

CN6000

(2)

C Powe

Power Unit

TCON

(30)

(15)

CN6201

(10)

CN6200

(30)

CN9701

BAA

CN100/CN001

(10/12)

CN4000

HLR

Speaker LSpeaker R

(4)

CN5600

(30)

– 13 –

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

(3)

RM-GA018

5-2-2. KLV-32 NX400(S/B), NX400(S/B)/S, NX500

WXGA

(KLV-32 NX400(S/B), NX400(S/B)/S)

FHD

(KLV-32NX500)

CN1/

CN100

Switch

Unit

(14)

CNxxxx

INVERTER

TCON

(15)

CN6402

CN6403

(6)

(14)

CN6401

G2LE

(3)

CN6101

C Powe

TCON

(4)

(30/51)

(10/12)

CN4000

HLR

(4)

CN5600

(30)

(10)

CN6200

(51/30)

CN9700/9701

BAA

CN100/CN001

Speaker LSpeaker R

– 14 –

5-2-3. KLV-40NX500

(3)

KLV -26,32 NX400(S/B), 26,32 NX400(S/B)/S, 32,40 NX500

RM-GA018

(Except KLV-40NX500(South Africa)

(14)

CN6402

G2HE

CN6403

(6)

(15)

CN6401

(14)

CNxxxx

TCON

(KLV-40NX500(South Africa)

(4)

TCON

(51)

(10)

CN6200

BAA

CN4000

(4)

INVERTER

CN1/

CN100

Unit

Switch

Speaker R/ Speaker box R

CN6101

C Powe

(51)

(3)

CN9700

CN100/CN001

(10/12)

HLR

CN5600

(30)

Speaker L/ Speaker box L

– 15 –

+ 35 hidden pages