Sony KDL-55W6XD Schematic

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

SERVICE MANUAL (COMMON)

Version Date Subject

1 01/2016 1st Issue.

GN2S CHASSIS

Segment: QW

LCD TV

9-888-190-01

For SM - Unique , please refer :

9-888-190-Ax ( America )

9-888-190-Cx ( China)

9-888-190-Ex ( Europe )

9-888-190-Px ( Pan Asia)

SERVICE MANUAL (COMMON)

GN2S CHASSIS

Segment: QW

LCD TV

MODEL LIST

THIS SERVICE MANUAL CONTAINS COMMON INFORMATION FOR BELOW REGIONS AND MODELS:

REGION
ASIA AMERICA EUROPE

CHINA

MODEL

KLV-32W6*D KLV-40W6*D KLV-48W6*D
KDL-32W6*D KDL-40W6*D KDL-48W6*D KDL-55W6*D

Section Title

1. SAFETY NOTES

1

1

1

1

1

1

1

1

)…………………………………….

2. SELF DIAGNOSTIC FUNCTION

2

Overview of Control Buttons .................................................................. .

2

……….....................................................................

2

………………........................................................................

2

2

............................................................................................

3. TROUBLE SHOOTING

3

.............................................................................................

3

3

No Picture................................................................ ............ ............ ........ .

3

TABLE OF CONTENTS

Section Title

4. SERVICE ADJUSTMENTS

4

Accessing Service Mode .....................................................................

4

Accessing Software Version....................……….………………………

4

Accessing Self Diagnostic History………………………………..……..

4

Accessing Self Diagnostic Menu………………………………………...

4

Accessing Serial Number Edit……………….…………………………..

4

Accessing Model Number Setting........................................................

4

White Balance..................................................... ............... ............ ......

4

Aging Mode...................................................... .................. ................ ..

4

Tuner Detection........................................................ ............... .............

5. DIAGRAMS
5

Circuit Board Location .........................................................................

5

Block Diagram......................................................................................

5

Connector Diagram

Page

-1. Warnings and Caution………………………………………………………. 5

-2. Caution Handling of LCD Panel ......…………….................................... 5

-3. Caution About the Lithium Battery……………......................................... 6

-4. Safety Check Out ........................……………......................................... 6

-5. Leakage Test .......................................................................................... 6

-6. How to Find a Good Earth Ground………………………………………… 6

-7. Lead Free Information….…………………………………………………… 7

-8. Handling the Flexible Flat Cable (FFC

-1.

-2. LED Display Control

-3. LED Pattern

-4. Standby LED Error Display…………………………………………………. 8

-5. Triage Chart

-1. LED Blinking

-2. No Power…….……………………………………………………………….. 28

-3.

-4. No Sound.............................………………………………………….......... 107

7

8
8
8

9

12

54

Page

-1.

-2.

-3.

-4.

-5.

-6.

-7.

-8.

-9.

-1.

-2.

-3.

Please refer to Service Procedure for Panel , Board and Software Change / Upgrade
Manual , part number 9-888-196-0x in TISS .

Please refer Service Manual – Unique for below information :

………………………………………...................... 147

129
129
130
130
132
133
135
139
140

143
144

-Safety Warnings

-Wire Dressing

-Circuit Board Location

-Disassembly and Exploded View.

Note: Pictures provided in this Ser vice Manual might have slight difference from the
actual sets.

4

SECTION 1

4

3) Do not leave the module in high temperature or in areas of high humidity for

6) Di

klight (CCFL)

Correct

hand

placement

while

carrying

theTVis

very

important

for

8) Use care when handling the wires or connectors of the inverter circuit.

components

with

Sony

parts

whose

part

numbers

appear

as

shown

in

this

p

th

hile the TV is f

p

p

SAFETY NOTES

1-1. Warnings and Caution

1) These servicing instructions are for use by qualified service personnel only.

2) To reduce the risk of electric shock, do not perform any servicing other than
that contained in the operating instructions unless you are qualified to do so.

3) An isolation transformer should be used during any service to avoid
Possible shock hazard, because of live chassis. The chassis of this receiver is
directly connected to the ac power line.

4)Be sure tofollow these guidelines to protect yourproperty and
avoid causing serious injury :

• Carry the TV with an adequate number of people; larger size TVs require
two or more people.

•

safety and to avoid damages.

5) Components identified by shading and mark on the exploded views,

and in the parts list are critical for safe operation. Replace these

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

eration is suspected.

o

!

1-2. Caution Handling of LCD Panel

When repairing the LCD Panel, make sure you are grounded with a wrist band.
When repairing the LCD Panel on the wall, the panel must be secured using the

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.

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.
sconnect the AC power when replacing the bac

inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms)

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

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 or Burn-in period for more

an 1 hour w

ace down on a cloth.

or

Figure 1. TV is faced down on a cloth during repair.

5

1-3. Caution About the Lithium Battery

1) Danger of explosion if battery is incorrectly replaced. Replace only with
the same or equivalent type.

2) Outer case broken battery should not contact to water.

1-4. 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 inter board 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, metalized knobs, screws and all
other exposed metal parts for AC leakage. Check leakage test as described
next.

8. For safety reasons, repairing the Power board and/or Inverter board is
prohibited.

1-5.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 WT540A.
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 SH­63TRD are examples of passive VOMs that are suitable. Nearly all battery
operated digital multimeter that have a 2 VAC range are suitable.
(see Figure 2.)

Figure 2. AC voltmeter to check AC leakage

1-6. How to Find a Good Earth Ground

1) A cold-water pipe is a guaranteed earth ground; the cover-plate retaining
screw on most AC outlet boxes is also at earth ground.

2) If the retaining screw is to be used as your earth ground, verify that it is at
ground by measuring the resistance between it and a cold-water pipe with an
ohmmeter. The reading should be zero ohms.

3) If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble­light (not a neon lamp) between the hot side of the receptacle and the
retaining screw. Try both slots, if necessary, to locate the hot side on the line;
the lamp should light at normal brilliance if the screw is at ground potential
(see Figure 3).

Figure 3. Checking for earth
ground.

6

1-7. 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.

The servicing of these boards requires special precautions. It is strongly

Figure 4: LF Logo

Figure 5: LF logo on circuit board

recommended to use Lead Free Solder material in order to guarantee optimal
quality of new solder joints.

1-8. Handling the FLEXIBLE FLAT CABLE (FFC)

 When you insert / pull out FFC, please grasp a reinforcement board and main

body of FFC.

7

1-8. Handling the FLEXIBLE FLAT CABLE (FFC)

<INSERTION>

Insert properly without slanting

<PULL OUT>

Press release button at the same
time pull out FFC cable

8

1-9. Assemble and Dissemble Tuner Module

Tuner Module treatmen t way

1. The insertion & extraction angle of the module is permitted to
specified degree for connector

Push down to screw.

For removing Tuner Module,
After un screwed, Automatically the Module
will float to correct degree.
So please extract it with keeping this degree.

20°

Reference paper for 20 degree
(If need please use for fit by cutting this paper)

20°

9

SECTION 2

SELF DIAGNOSTIC FUNCTION

2-1. Overview of Control Buttons

LED Indicator

• Lights up in green when you select “Picture Off”.

• Lights up in amber when you set the timer or
“Photo Frame Mode”.

• Lights up in green when the TV is turned on.

• Flashes while the remote is being operated.

2-2. LED Display Control

Status LED Colour Remarks
Power Off ( AC Off and *1) OFF *1 power switch off (by touch button)
Power On Green
Standby(by remote control off

and Side Key off)

OFF

Amber = Red + Green

2-3. LED Pattern

When safety shutdown occurs, Standby LED displ ay reports the cause by using the lightning

0.5sec

.

3.0sec 3.0sec

patterns as indicated below

0.5sec

Example: The figure above shows LED display when SHUTDOWN is caused by Audio
Error. It repeats flashing for a specifi ed num ber of tim es i n 0.5sec/c ycle and has a 3 seconds interval of li ghting
off. Please note that a 3 seconds interval of lighting off is fixed regardless of abnormal state types.

2-4. Standby LED Error Display

The Number of Standby LED
(RED blinking)

2 Main Power Error AC adapter Error
3 Audio Error B* board Error
4 Panel Power Error B* board Error
5 Panel I2C COMM Error B* or Source board Error
6 Backlight Error B* board Error

Error Detection Error Location

Picture Off Green
Set "Sleep Timer" Amber
Set "On Timer” ( Power On ) Amber
Set "On Timer”( Standby ) Amber
Picture Frame Amber

Failure Red Blinking

Error of panel ID

Software Updating

6

Amber/Green

Blinking

Amber

Blinking

The number of LED blinking indicates
cause of failure.

Blinking:0.5sec Amber/ 0.5sec Green

Blinking: 1sec On / 1sec Off

B* Board Type

Size

PAN ASIA,AMERICA,

CHINA
32” BBA BBE
40” BBA BBE
48” BBA BBE

EUROPE

10

2-5. Triage Chart

(missing/
distorted)

Stationary

dots

Cannot

(Tact-Key OK)



    







    































   







Segment

Reference

QT QW QW-L SE3N SE3 2 3 4 5 6

Symptoms - Shutdown. Power LED

blinking red diagnostics sequences

B* Board Y Y Y Y Y

AC Adaptor Y Y Y Y Y

H* Board Y Y Y Y Y

Stereo

Speaker

Assist

Speaker

Wi-Fi

module

Y Y Y Y Y

Y Y

Y Y Y

LVDS FFC Y Y Y Y Y

LED Panel Y Y Y Y

Tuner

module

Y Y Y Y Y

Switch Unit Y Y Y Y Y

Problem

Power Audio

No Power

(No Pic, No

Sound, No BL)

No Power LED

&

No Reponse to

remote

(Dead Set)

colored
lines or

Video

(missing/distorted)

No Video
in 1(one)
of Inputs

No

Video

in

All

Inputs

RF

Tune

Remote

No Reponse

when press
remote key

Panel

(Power)

Panel

(Communication)

Panel

(Backlight)

Network
*QT,QW,

SE3N

Wireless

can't

connect

Audio

No Audio

front LED Tact-Key

No

No LED

(Set is still

alive)

Response

when

press
Tact-Key
(Remote

OK)

Most likely defective part
Secondary possible defective part

B* Board Type

Size

PAN ASIA,AMERICA,

CHINA

EUROPE

32” BBA BBE
40” BBA BBE
48” BBA BBE

11

3-1. LED BLINKING

3-1-1. 2x Blinking (Main power Error)

BBE, BBA board (QW, QWL) only

SECTION 3

TROUBLESHOOTING

B* Board Type

Size

PAN ASIA,AMERICA,

CHINA
32” BBA BBE
40” BBA BBE
48” BBA BBE

-ve

EUROPE

2 times
Blinking

B-Board

Check DC voltage at

JL6001

18V – 22.5V?

*Typical: 19.5V

Yes

Change B-board Change B-board

No

and check the output voltage.

Adaptor

Take out adaptor

18V – 22.5V?

(Refer Figure 1)

*Typical: 19.5V

Yes

No

+ve

Change
adaptor

Ensure that
+ve probe is
touching the

needle.

Figure 1: How to check adaptor’s output
voltage.

12

2 x Blinking (Checking Point)

Board Name Board PWB (A side) Detail

BBA
(Q6020)

Q6020

BBE
(Q6020)

Q6020

13

3-1. LED BLINKING
3-1-2. 3x Blinking (Audio Error)

START

3x blinking

 TV must be power OFF condition

before unplug any of the
FFC/FPC/wire/cable from the board.

-> This is to prevent possibility
circuit damage happen.

No connectivity of F4000

F4000 broken,

Replace F4000

3x blinking

Remove

Speaker Connector

at CN4001 & perform

AC OFF - ON

3x blinking

Check connectivity

of F4000

3x blinking &
F4000 OK

Audio IC problem,

IC4001 damage

No 3x blinking

3x blinking

Check Speaker harness
And Speaker impedance

No connectivity for
speaker harness

Change Speaker

Harness

Connect back

Speaker Connector

to CN4001

& perform AC OFF - ON

Speaker Impedance
≠ 6~8 Ω

Change Speaker

No 3x blinking

Change BB* board

No 3x blinking

DONE

14

3x Blinking (Checking Point)- BBA

Board

Name

BBA
(QW, QT)

IC4001
F4000
CN4001

Board PWB (A side) Details

IC4001

F4000

Details

CN4001

15

3x Blinking (Checking Point)- BBE

Board Name Board PWB (A side) Details

BBE
(QW, QWL,
QT)

IC4001
F4000
CN4001

Details

IC4001

F4000

CN4001

16

3-1. LED BLINKING

3-1-3. 4 x Blinking (Panel Power Error)- BBA

3-1-4. 4 x Blinking (Panel Power Error)- BBE

Start

Check voltage at

JL6030(BBA)

11.52V-12.82V?

Yes

End

No

IC6019 Checking

Procedure

Start

Check voltage at

JL6034(BBE)

11.52V-12.82V?

Yes

End

MTK Problem

or TV in stand-

No

Check PANEL_PWR

3.00V-3.33V?

by mode.

No

Yes

Check JL6034 (BBE)

11.52V-12.82V?

Replace

Q6023

Yes

No

Refer IC6019

Checking

Procedure

17

4 x Blinking (Checking Point) QW/QT-BBE [1/2]

POWER1

F6003

EN_V

Q6023

3.3V_STBY

1.5V

PANEL_PWR

1.2V

19.5V

Q6020

19.5V_ADP

19.5V & Q6020

F6002

STBY_5V

18

4 x Blinking (Checking Point) QW/QT –BBA [2/2]

1.5V

PANEL_PWR

EN_V

POWER1

3.3V_STBY

STBY_5V

F6003

1.2V

19.5V & Q6020

19.5V

Q6020

19.5V_ADP

F6002

F6002

19

3-1. LED BLINKING

3-1-5. 5 x Blinking (Panel I2C Error - General Checking)

START

Reinsert LVDS Flat

Flexible Cable (FFC) at B-Board

and Panel Side. Make sure FFC is

taped properly.

5 Times Blinking happen?

YES

Replace LVDS Flat Flexible

Cable (FFC)

5 Times Blinking happen?

YES

Check voltage PANEL_SDA &

PANEL_SCL.

Is 3V available?

No

No

TV set is OK now

NG Symptom:

Incorrect FFC Insertion

TV set is OK now

NG Symptom:

LVDS Cable NG

Is 3V -3.33V available?

YES

Replace

O-Cell* or Panel Module*

5 Times Blinking happen?

YES

Replace B-Board

TV Boots Up Normally

END

NO

No

Refer to Panel I2C

Manual Checking

TV set is OK now

NG Symptom:

B-Board Issue NG

* O-Cell or Panel
Module
replacement
depends on
service
capabilities

20

3-1. LED BLINKING

3-1-6. 5x Blinking (Panel I2C Checking Manual)

START

Check Impedance at PANEL_SDA &

PANEL_SCL.

Is High Impedance?

Yes

Check voltage 3.3V at

Q8601 (Source).

3V available?

Is 3V-3.33V available?

YES

Replace Q8601

5 Times

Blinking happen?

Yes

No

No

NO

Suspect IC5000/IC5001/IC9000 NG

IC9000 – Refer to 6X Blinking

IC5001 – Refer to No Picture

Troubleshooting

IC5000 – Replace Board

DDCON checking procedure
(IC6009)

Check CN8600 (32”F/40”/43”/ 48”/49”)

or CN8601 (32”W) condition.

NO

Is Connector OK?

YES

END

Replace CN8600/CN8601

NG Symptom:

CN8600/CN8601 Mount

or Part Issue

Replace Q8600?

5 Times

Blinking happen?

Yes

No

21

5 x Blinking (checking Point [1/2])

BBA
FHD

PANEL_SD
A (Top)

PANEL_SC
L (Bottom)

BBA
WXGA

Q860
1

Q8601
(Source

)
Q860
0

PANEL_SDA
(Top)

PANEL_SCL
(Bottom)

22

5 x Blinking (Panel I2C Checking Manual [2/2])

BBE
FHD

PANEL_SDA
(Top)

PANEL_SCL
(Bottom)

BBE
WXGA

PANEL_SDA
(Top)

PANEL_SCL
(Bottom)

Q8601

Q8600

Q8601
(Source)

23

3-1. LED BLINKING

3-1-7. 6x Blinking (Backlight Error)- QW

6x Blinking

Check if LED harness (CN9000)

is connected properly?

Yes

Check F9000 Fuse.

Impedance fuse > 1Ω?

No

Change B Board.

AC ON 6x Blinking?

Yes

Able to repair
Panel Module?

Yes

Change Harness.

AC ON 6x Blinking?

Yes

Replace LS bar*

No

Yes

Yes

Yes

No

No

No

Connect LED harness

AC ON 6x Blinking?

Change F9000 Fuse.

AC ON 6x Blinking?

B Board broken**

Change Panel Module

Harness broken

No

No

LED harness loose

Fuse F9000 broken

*To avoid changing all LS bar, please follow steps below

(1) Turn off AC
(2) Unplug DC adaptor from DC jack
(3) Plug in DC adaptor to DC jack
(4) Turn on AC
(5) LS bar will turn on for ~4s before 6x blinking
(6) Observe which LS bar cannot turn on during power on
(7) Replace LS bar that failed to turn on

**For 6x blinking B Board Troubleshooting please refer
next page.

24

3-1. LED BLINKING

3-1-8. 6x Blinking (Backlight Error - B Board Troubleshooting)-QW

B-Board Broken

Check D9001 (AC OFF)

VF > 0.1V and < 0.8V?

Yes

Check LED_VCC (AC OFF)

LED_VCC short to ground?

Impedance > 1kΩ?

Yes

Check D9002 (AC OFF)

VF > 0.5V and < 1V?

Yes

Check L9001 (AC OFF)

L9001 impedance < 1Ω?

Yes

Check Q9000 (AC OFF)

Impedance RDS > 100 ohm

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

Change D9001.

AC ON 6x Blinking?

Change C9026 & C9027

AC ON 6x Blinking?

Change D9002, Q9001, and RB9001

AC ON 6x Blinking?

Change L9001

AC ON 6x Blinking?

Change Q9000

AC ON 6x Blinking?

No

No

D9001 broken

C9026 & C9027 broken

No

D9002, Q9001, and RB9001 broken

No

No

L9001 broken

Q9000 broken

Suspect : Other Part damage

Change the board

25

6x Blinking (Checking Point) QW-BBA [1/2]

F9000, L9001, D9001, Q9000

L9001

F9000

S

Q9000

D9001

D

RB9001, Q9001, D9002, R9021

RB9001

Q9001

D9002

R9021

C9026, C9027, CN9000, IC9000, LED_VCC

C9026

IC9000

C9027

LED_VCC

CN9000

Q9000 RDS Measurement

Multimeter

-ve

+ve

26

6x Blinking (Checking Point) QW-BBE [2/2]

F9000, L9001, D9001, Q9000

L9001

F9000

S

Q9000

D9001

D

RB9001, Q9001, D9002, R9021

RB9001

Q9001

D9002

R9021

C9026, C9027, CN9000, IC9000, LED_VCC

C9026

IC9000

C9027

LED_VCC

CN9000

Q9000 RDS Measurement

Multimeter

-ve

+ve

27

3-2. NO POWER

3-2-1.H-board troubleshooting flow (for QW, QWL)

TV cannot be controlled

by remote commander

Yes

Check Green LED

at Power LED indicator.

Is it lighted up?

No

Check voltage at

Pin1 of H board connector

(refer next page)

Is it 5V?

No

Check H board to B board

harness condition.

Is it connected properly?

Yes

Check voltage at resistor of

5V source of B board.

Is it 5V?

Yes

No

Yes

No

Place remote commander (RC)

near to window and press RC key.

Is the LED blinking?

No

Connect harness properly

STBY5V NG. Refer toIC6014

troubleshooting section

Yes

Change Mechanical part

(ex. Ornamental panel,

or guide light)

Check SIRCS voltage

using multimeter

at R5038 on B board.

Then press and hold RC key and

observe voltage drop.

Does it drop

from 3.9V to (<2.9V)?

Yes

Main IC SIRCS line broken.

Change B-board

No

IR sensor broken.

Change H board.

Condition: TV is plugged to AC power supply,
and AC power supply is turned ON.

28

H-board troubleshooting flow (Checking Point)

Board name Board picture

HCY

Pin 1 of
H board connector

B board

R5038

BBA

BBE

R5038

29

3-2. NO POWER

3-2-2 : Switch unit troubleshooting flow (for QW, QWL)

Switch Unit NOT FUNCTIONING

Check if Wire Harness

And Connector is

connected properly?

Yes

** Check 3.3V

in Pin2, CN1

(Switch Unit).

Is it 3.3V?

No

No

Change Wire Harness

And connect properly

**Check 3.3V in (Pin

8, CN9702 on

B board . Is it 3.3V?

*VOLTAGE LEVEL FOR EACH PRESSED BUTTON (for QW, QWL, QT
switch unit only)

KEY Voltage

(average)

­+
No Input

0.000

1.05

2.420

Voltage

range

0.00 – 0.2

1.00 – 1.13

2.26 – 2.58

Yes

*Check Pin 1

Voltage Level in CN1

(switch unit). Is

voltage level

according to key

pressed?

Yes

Change B-board

Yes

NG

Change Switch Unit

No

**see next page for probing point of B board

30