Sony KDL-55W905A Schematic

HISTORY INFORMAT ION FOR THE FOLLOWING MANUAL:

SERVICE MANUAL (COMMON)

888

137

P1 ( Pan Asia )

Version Date Subject

1 4/2013 1stIssue.

RB1GCHASSIS

Segment: HG

LCD TV

9-888-137-01

For SM - Unique , please refer :

9-888-137-C1 ( China )

9-888-137-A1 ( America )

9-888-137-J1 ( Japan)

9-888-137-E1 ( Europe)

SERVICE MANUAL (COMMON)

RB1GCHASSIS

LCD TV

Segment: HG

MODEL LIST

KDL

-40W900A

KDL

-46W900A

KDL

55W900A

KDL

40W905

A KDL

46W

05A

KDL

55W905A

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

REGIO ASIA CHINA AMERICA JAPAN EUROPE

MODEL

KDL-40W904A KDL-46W904A

KDL-55W904A

TABLE OF CONTENTS

3. Change Data by Service Mode 1…………………………………..…….

218

9. VCOM Adjustment (NFR

AUO Panel) ………………………………….

222

2. SELF DIAGNOSTIC FUNCTION

15.

Service Menu Tree………………………………………........................

225

5. DIAGRAMS

3-3.No Sound

Circuit Board Location

()

Section Title Page

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

1-2. Caution Handling of LCD Panel ......…………….................................... 5

1-3. Safety Check Out ........................……………......................................... 6

1-4. Leakage Test .......................................................................................... 6

1-5. How to Find a Good Earth Ground………………………………………… 7 1-6. Lead Free Information….…………………………………………………… 7 1-7. Handling the Flexible Flat Cable (FFC)……………………………………. 7

1-8. Procedure to remove Rear Cover…………………………........................ 8

1-9. Procedure to re-assemble Rear Cover……………………………………. 10 1-10. Caution Of Rear Cover …………………………………………………….. 11 1-11. Instruction about Disassembling Smart Core……………………………. 12

2-1. Overview of Control Buttons ................................................................... 16

2-2. LED Display Control ………..................................................................... 17

2-3. LED Pattern………………........................................................................ 17

2-4. Standby LED Error Display…………………………………………………. 17

2-5. Triage Chart ............................................................................................ 18

3. TROUBLE SHOOTING 3-1. No Power…….……………………………………………………………….. 19

3-2. LED Blinking……………….………………………………………............... 35

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

3-4. Analog Signal Path.................................................................................. 118

3-5. No Picture............................................ .. ... ................................................ 119

3-6. Input Skip Function……………………………………………………. 205 3-7. Side Buttons Malfunction……………………………………………………. 206 3-8. IR Remote Commande 3-9. Light Sensor Error…………………………………………………………… 208 3-10. Network Malfunction: Ethernet (Wired)……………………………………. 209 3-11. Wireless Network Malfunction……………………………………………. 213 3-12. Bluetooth Malfunction…………………………………………………. 215 3-13. 3D Glasses 3-14. HD Rec Malfunction……………………………………………………….. 217 3-15. Android Application Malfunction…………………………………………… 218

Active Malfunction…………………………………………… 216

Malfunction………………………………………. 207

Section Title Page

4. SERVICE ADJUSTMENTS 4-1. 4-2. Transition of Each Micro’s Service Mode……….……………………… 218

4-4. Save Changing Data by Service Mode 1……………………………… 218 4-5. Change Data by Service Mode 2……………………………………….. 219 4-6. Save Changing Data by Service Mode 2……………………………… 220 4-7. Restore WB/Gamma Adj. Data to B Board…………………………….. 221 4-8. WB Adjustment by Service Mode……………………………………….. 221

4-10. VCOM Adjustment (HFR-SDC Panel) …………………………………. 223

4-11. REC Setting………………………………………................................... 223

4-12. Reset Panel Operation Time………………………………………......... 224

4-13. Set to Shipping Condition……………………………………….............. 224

4-14. Summary of Service Control……………………………………….......... 224

4-16. How to Enter Self Diagnosis Display…………………………………… 226 4-17. Updating the software……………………………………………………. 228 4-18. Non network function…………………………………………………….. 228 4-17. One Step Touch Key function……………………………………………. 230

5-1. Circuit Board Location ......................................................................... 231

5-2. Block Diagram...................................................................................... 232

5-3. Connector Diagram ………………………………………...................... 240

ccessing Service Mode ..................................................................... 218

Please refer Service Manual – Unique for below information :

-Safety Warnings

-Wire Dressing

-Disassembly and Exploded View.

SECTION 1

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

handpl

hil

for

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

components

with

Sony

parts

whose

part

numbers

appear

shown

this

operation

suspected

SAFETY NOTES

RB1G CHASSIS

W900A/904A/905A

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 to follow these guidelines to protect you avoid causing serious injury :

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

•Correc

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

acementw

e carryingthe

property and

sveryimportan

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 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.

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.

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

than 1 hour while the TV is face down on a cloth.

Do not leave Power ON > 1 hour

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

Safety Notes

not exceed 0.5mA (500 microamperes)

multimeter

is suitable for this job

)Check

knob

operated digital multimeter that have a 2 VAC range are suitable

their

toth

hibited

RB1G CHASSIS

W900A/904A/905A

1-3 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.

allcontro 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 recommen

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 replacementofany suc

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 pro

s, shields, covers, groundstraps andmounting

ne cor

ecustomer.

1-4.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

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 .

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

(see Figure 2.)

Figure 2. AC voltmeter to check AC leakage

Safety Notes

2) If the retaining screw is to be used as your earth ground, verify that it is at

retaining screw. Try both slots, if necessary, to locate the hot side on the line;

RB1G CHASSIS

W900A/904A/905A

1-5. 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.

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

the lamp should light at normal brilliance if the screw is at ground potential (see Figure 3).

Figure 3. Checking for earth ground.

1-7. Handling the FLEXIBLE FLAT CABLE (FFC)

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

FFC.

1-6. 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 4: LF Logo

e 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.

Figure 5: LF logo on circuit board

< Insertion>

Main Board

Safety Notes

cover

cord

( Confirm all screws & positions before removing)

1-8. Procedure to remove Rear Cover

HG 55”

RB1G CHASSIS

W900A/904A/905A

CAUTION: During this disassemble, please ensure the TV set is on the flat surface table/desk and put on Soft Cushion sheet/ Protection Sheet to prevent form TV scratch.

1. All screws should be remove on rear cover and AC except stand joint screw

4. Remove AC cover (plastic). Pull out AC cord

2. Remove stand by pull down as direction then remove joint screw

5. Forefinger & middle finger clutched AC cover hole bottom side

3. Pull out sound reflector left & right

6. The 1

Servicers both hands to

pull up rear cover

Safety Notes

()

7.The 1

operator use left hand to

8.The 2

operator use right hand

9.The two operator put up the rear

3.Hands need glove

easy to deform

1-8. Procedure to remove Rear Cover continue

RB1G CHASSIS

W900A/904A/905A

pick rear cover top side

Notes & Caution Point

1. 40” :Need One Servicer.

2. 46” & 55” :Need two Servicers. .

4. Procedure of remove rear cover

will be same with all inch

5. Rear cover of bottom side is

to pick rear cover top side

Red area is caution

cover together

Rear cover of bottom side is easy to deform.

Safety Notes

ppy

7. Put stand as direction and tighten

1-9. Procedure to re-assemble Rear Cove

Assemble rear cover as a direction

Alignment: Bottom right corner

RB1G CHASSIS

W900A/904A/905A

1. Assemble rear cover as a direction

5. Tighten all screw for rear cover, reflector, AC cover &

oint screw exce t four

stand stand screw

2. Lay down rear cover top side to assemble

6. Connect AC cord connector, install AC cover & tighten the screw

3. Check all side whether its ro erl insert

four stand screw

Put reflector left & right

Safety Notes

(sharp edge and easy to

deform)

OK to grab with care

1-10. Caution Of Rear Cover

RB1G CHASSIS

W900A/904A/905A

NG to grab

OK to grab (curling area)

(easy to deform area)

(40”, 46”, 55” rear cover will be same sharp edge area)

Safety Notes

SCREW

+PSW

SCREW

PSW

M3ｘ6

Don’t pull right side

ave a hook only right side.

2. Take off Harness from Hook

RB1G CHASSIS

W900A/904A/905A

1-11. Instruction about Disassembling Smart Core

1. Remove screws.

a) HG/MD/LK/LS/MW Model

（ONLY HG）

SCREW +BVTP 3ｘ10 SCREW +BVTP 3ｘ10

Recommended disassemble position

ｘ

b) TE Model

ORNAMENT

Lay the display face down on a work surface that is lager than the TV and make space in front of ORNAMENT.

M3ｘ6

3. Remove Smart Core Cover. a) HG/MD/LK/LS/MW Model

Pull left side.

Smart Core Cover

4. Remove Smart Core from SET. a) HG/MD/LK/LS/MW Model

b) TE Model

Smart Core Cover

Pull left side.

a) HG/MD/LK/LS/MW Model b) TE Model

Rotate Smart Core to direction

unplug

Safety Notes

TE Model

Lock

RB1G CHASSIS

W900A/904A/905A

(Continue from 4a) Wipe scratch marks on BEZEL flame

a) HG/MD/LK/LS/MW Model

Scratch marks by Smart Core remain on BEZEL flame.

Wipe marks

b) TE Model

It moves bottom side with moving on Bracket to back side.

(Continue from 4b) Release Smart Core Bracket

Smart Core Bracket

(Only TE)

unplug

BACK

BOTTOM

5.Release connector& harness. a) HG/MD/LK/LS/MW/TE Model

Safety Notes

Pinch and rotate case hook by f at plate (ex. Steel ruler)

RB1G CHASSIS

W900A/904A/905A

6.Release Lid/Case Hook (2 position). a) HG/MD/LK/LS/MW/TE Model

Put your finger at this position. This makes it easy to release hook.

7.Remove Smart Core Lid. HG/MD/LK/LS/MW/TE Model

8.Release Ornament/Case Hook (1 position). HG/MD/LK/LS/MW/TE Model

Case

Lid

CASE

ORNAMENT

9.Remove HIR PWB. HG/MD/LK/LS/MW/TE Model

LID, SC

HIR PWB

Safety Notes

HG/MD/LK/LS/MW Model

11.Rel

HSC/C

PWB (2

HSC PWB

Remove HSC PWB pinching and rotating this hook

10.Remove Wifi PWB and BT PWB. HG/MD/LK/LS/MW/TE Model

RB1G CHASSIS

W900A/904A/905A

Finish!

TE Model

ease

ase Hook

HG/MD/LK/LS/MW/TE Model

Wifi PWB

position) and remove

CASE

HSC PWB

BT PWB

HSC PWB

HIR PWB

Cover

Lid

Case

Cover

Bracket

Lid

common

WiFiBT

Case

common

Ornament

Self Diagnostic Function

( details refer to 2

2. LED Display Control)

( details refer to 2

2. LED Display Control)

()

INPUT SELECT /

Press to display the TV

Home Menu

2-1. Overview of Control Buttons

SECTION 2

SELF DIAGNOSTIC FUNCTION

2-1-1. (EXCEPT CHINA)

FRONT

Example

RIGHT

TV CONTROLS/ TERMINALS/ INDICATOR

nsors and illumination

emote control sensor/Light sensor)

Illumination lights up or blinks in different colours according to the status of the TV

2-1-2. (CHINA)

FRONT

Example

RIGHT

TV CONTROLS/ TERMINALS/ INDICATOR

Sensors and illumination (Remote control sensor/Light sensor)

Illumination lights up or blinks in different colours according to the status of the TV

Power

Turn the TV on or switch to standby mode

USB 2/3

Press to see photo, music

and video files

stored on a USB device.

CH+/- Channel / / ,

+/- (Volume) / / .

Press to select the next or previous channel. Press to adjust the volume. In TV Home Menu: buttons will work as , , , .

INPUT SELECT /

SELECT/ CONFIRM

Press to select the next or previous channel. In TV Home Menu: buttons will work as (select/confirm)

HOME

Home Menu.

Power

Turn the TV on or switch to standby mode

USB 2/3

Press to see photo, music and video files stored on a USB device.

频道 +

频道 -

主菜单

频道

+/- (Channel) ,

+/- (Volume) / / .

Press to select the next or previous channel. Press to adjust the volume. In TV Home Menu: buttons will work as

SELECT/ CONFIRM

Press to select the next or previous channel. In TV Home Menu: buttons will work as (select/confirm)

Press to display the TV

主菜单

Self Diagnostic Function

Power On

White

Off

breathing



Speaker Error

]

[

]

Off

T Con Error [TCON_ERR]

(MD/MW/HG/TE

REC [AEP/J

]

WhiteRed(Pink) Lit

Off

patterns as indicated below

WDT)B* B

OTHERS

2-2. LED Display Control

Status White Center LED Side RGB LED Side Amber LED Remarks

Power Off ( by power saving switch off and *1)

Standb ( by remote control off only ) Skype Call Receive white white blinking Off

Picture Off Device Connection White cyan Off

Set "On Timer"/ Reminder

Set "Rec Timer"

( Power On ) Set "On Timer"/ Reminder

Set "Rec Timer" Off Off Orange

( Standby )

Failure Off

ging mode white Green Blinking Off

End of Aging mode White Green Blinking Off Blinking:3sec On / 3sec Off Software Updating white blinking white blinking off Software Updating finish Off Blue lit off Test Reset White white blinking Off

Error of panel ID Off Green Blinking

only Picture Frame White Orange Off ePOP/ Shop Illumination

Off Off Off

White looping

White Orange Off

White

one time blinking Off

Red

Blinking

Cyan Lit/

Cyan loop

Off

Orange Blinking

Off

*1 power switch off (by side

key)

Main-micro is in normal

operation

Main-micro block is in sleep

mode

The number of LED blinking

indicates cause of failure ( refer to the table of next

page )

Blinking:0.5sec On / 0.5sec

Off

One shot Center White when

feature change

2-3. LED Pattern

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

2-4. Standby LED Error Display

Note: Details refer to Troubleshooting Section.

Smart Core RED

LED blinking

count

Main 19.5V failure [MAIN_POWE] * This f ailur e is not saved

Main 5.0/3.3/1.8/1.0/ 1.1V failure [ DC_ ALE RT] * 5.0/1.0V failures are not saved.

A udio amp. pr otect ion [ AUD_P ROT]

HDMI equalizer/switch I2C NACK [HDMI_EQ] *Ther e is T emp. sensor on t he same I2C bus

Tuner or demodulat or I2C NACK [TU_DE MO D ] A FE device I2C NACK [AFE I2C

AFE device SPI NACK [AFE_SPI]

(only fo r AEP,CH,HK)

LED Driver Err or [LD_ERR]

Model)

Panel ID EEPROM I 2C NACK (Also panel power f ail ur e is a suspect) [P_I D_E R R]

LED driver [B ACKLITE] Over temperatur e pr otect ion [TE MP_E RR]

*Temp. sensor I2C NACK [TE MP _E RR] *The r e is HDMI Eq on the same I2C bus.

Software Error (VPS/ MEPS/HOST/ ST BY/AFE

Detection Items

(HG/TE Model)

Board Error Item

Power Adaptor



B* Board E rro r



B* Board E rro r



B* Board E rro r



B* Board E rro r



B* Board E rro r



B* Board E rro r



B* Board E rro r



LED Driver Error



Panel Module



Tc on B oar d



Panel



module

Tco n

board

Board Error

B* Board E rro r

LED Driver (LD) Board Error

B* Board Error

oard Error

0.5sec

Example: The figure above shows LED display when SHUTDOWN is caused by Audio

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.

0.5sec

3.0sec 3.0sec

Size

40” BA2-S BA2-W G1A 46” BA2-S BA2-W G1A 55” BA2-S BA2-W G1B

B* Board Type

G* Board Type

Self Diagnostic Function

H** Board (SC)





()

SizeB*Board Type

Board

H** Board

46”

BA2-S BA2-W

G1A

HIR

HSC

2-5. Triage Chart

Reference

B* Board G* Board

H* Board (IR)

Speaker

Skype Module

Wifi Module

BT Module

LD* Board LVDS FFC

Symptoms - Shutdown. Power LED

blinking red diagnostics sequences

2345 6 7 8



















 



 

Green

LED

Blinkin

Green

*10

LED non-

(n/a)

stop

reponse to remote

Blinking

 



 

Power

No White Power

LED & does not

(Dead Set)



Video

- missing or distorted

Stationary

colored lines or

dots

No video

One of

Inputs

No video all Inputs





Remote Network Audio Skype Smart Core

Remote



Wireless

can't

connect

Audio







Skype

Can't Work

Smart Core no

LED (Set is

still alive)

 





Bluetooth

(BT)

Bluetooth /

One Step

Remote

(OSR) can't

connect



Tcon

LCD Panel

Problem





Power Power LD

Audio

Local

I2C

 

Panel

(Tcon)

  



Panel

(Backlight)

TEMP

FAN

N/A

Most likely defective part Secondary possible defective part

Software

Emitter





Note: Details refer to Troubleshooting Section.

Type

OTHERS JP

40” BA2-S BA2-W G1A HIR HSC

55” BA2-S BA2-W G1B

Board

Type

HIR HSC

Type

SECTION 3

TROUBLESHOOTING

RB1G CHASSIS

W900A/904A/905A

3-1. No Power

No Power

Check STBY 3.3V

L9101 (B-others)

C9318 (BK*)

B* Board

Replace

Between G* Board to

B* Board Harness

Harness

Note: For location details, refer to troubleshooting Reference for parts location.

G* Board

DC/DC converter check

NO POWER: Ayu2 control

Size B* Board Type G* Board

Type

OTHERS JP

40” BA2-S BA2-W G1A 46” BA2-S BA2-W G1A

55” BA2-S BA2-W G1B

Troubleshooting

Troubleshooting Reference

RB1G CHASSIS

W900A/904A/905A

Board Name

BA2-S

(L9101)

BA2-W

(L9101)

Board PWB (A side) Detail

L9101

(L9101)

L9101

Troubleshooting

BKX

BKE

Troubleshooting Reference

Board Name Board PWB (A side) Detail

RB1G CHASSIS

W900A/904A/905A

(C9318)

BKJ

(C9318)

C9318

Troubleshooting

START

Check

F9105

it 1.18V?

Check

F9106

END

yes

3-1-1. No POWER DC / DC Converter Check

RB1G CHASSIS

W900A/904A/905A

Check SL9111 Voltage.

Is the voltage 1V?

yes

Check SL9109 Voltage.

Is the voltage 5V?

yes

Check SL9103 Voltage.

Is the voltage 3.3V?

Check SL9107 Voltage.

Is the voltage 1.5V?

yes

Check F9104

Check F9102

Check SL9105 is

yes

Size B* Board Type G* Board

Type

OTHERS JP

40” BA2-S BA2-W G1A 46” BA2-S BA2-W G1A

55” BA2-S BA2-W G1B

Troubleshooting

(SL9107)

(F9104)

SL9105

()

Troubleshooting Reference

Board Name Board PWB (A side) Detail

RB1G CHASSIS

W900A/904A/905A

BA2-S

(SL9103) (SL9105)

(SL9109) (SL9111) (F9102)

(F9105) (F9106)

BA2-W

(SL9103) (SL9105) (SL9107) (SL9109) (SL9111)

F9102 (F9104) (F9105) (F9106)

F9102

SL9103

F9102

SL9103

SL9109

F9104

SL9107

SL9109

F9104

F9105

SL9111

F9105

SL9111

SL9105

F9106

Troubleshooting

(SL9109)

(SL9107)

(F9104)

Troubleshooting Reference

Board Name Board PWB (A side) Detail

RB1G CHASSIS

W900A/904A/905A

(SL9103) (SL9105) (SL9107)

(SL9111) (F9102) (F9104) (F9105) (F9106)

BKE

(SL9103) (SL9105)

(SL9109) (SL9111) (F9102)

SL9107

F9102 SL9103

SL9103 F9102

SL9111

SL9109

F9105 SL9105

SL9109

SL9111

F9104

F9105

F9106

SL9105

(F9105) (F9106)

SL9107

F9104

F9106

Troubleshooting

(SL9107)

F9105

(F9104)

(SL9105)

(F9102)

Troubleshooting Reference

Board Name Board PWB (A side) Detail

BKX

(SL9103) (SL9105)

(SL9109) (SL9111) (F9102)

F9102

RB1G CHASSIS

W900A/904A/905A

SL9109SL9103

(F9105) (F9106)

BKJ

(SL9103) (SL9107)

(SL9109) (SL9111)

(F9104) (F9105) (F9106)

SL9103

SL9107

F9102

SL9111

F9104SL9107

SL9109

F9105

SL9111

F9104

Troubleshooting

3-1-2

POWER: Ayu2 Control



C7348

)

9301(BK*

)

Not

. No

No Power

RB1G CHASSIS

W900A/904A/905A

Note: G BOARD : ( N/A FOR THIS MODEL)

Check STBY_+3.3V

at AYU2

(F11, G11, K13 pin

Check STBY_+1.8V

at AYU2

(K5, L5, L10, J7 pin

 C7349)

Check STBY_+1.0V

at AYU2

(N13, P13 pin  C7350)

look for where

STBY_+3.3V is NG.

look for where

STBY_+1.8V is NG.

look for where

STBY_+1.0V is NG.

Check AC_MON

at AYU2

(C6 pin  R7352)

Check MAIN_PWR

at AYU2

(A9 pin  R7344)

Check REG+12V

at CN9101 pin7

Check REG+19V

at F

only

Look for AC_MON line

at CN9101 pin2 (except BK*) or

G-board / Adapter failure (LW)

Look for MAIN_POWER line

at CN9101 pin1 (except BK*)

or replace AYU2

G-board /

Adapter (LW)

Check Xtal oscillation

X7302, 32.768KHz

(A7, B7 pin  R7386)

Replace X7302 or Ayu2

It might be power supply problem

Please refer "DC/DC converter check" shee

Check "STBY LED BLINKING"

e: (AYU2) – IC9000 (Brownie)- IC9001

Size B* Board Type G* Board

Type

OTHERS JP

40” BA2-S BA2-W G1A 46” BA2-S BA2-W G1A

55” BA2-S BA2-W G1B

Troubleshooting

(C7350)

()

Troubleshooting Reference

Board Name Board PWB Detail

RB1G CHASSIS

W900A/904A/905A

BA2-S

(C7348) (C7349)

BA2-S

(R7344)

R7352 (R7386) (CN9101)

(B side)

(A side)

C7349

C7348

C7350

R7386 R7344

Pin 1Pin 7

CN9101

Pin 2

R7352

Troubleshooting

BA2

(B side)

()

R7386

R7344

(R7386)

Troubleshooting Reference

Board Name Board PWB (B side) Detail

(C7348)

(C7349)

C7350

RB1G CHASSIS

W900A/904A/905A

C7348

C7350

C7349

BA2-W

(R7344)

(R7352)

(CN9101)

(A side)

Pin 1Pin 7

CN9101

Pin 2

R7352

Troubleshooting

(B side)

()

(R7386)

Troubleshooting Reference

Board Name Board PWB (B side) Detail

RB1G CHASSIS

W900A/904A/905A

C7350

(C7348) (C7349)

C7350

(R7344) (R7352)

(CN9101)

C7348

C7349

(A side)

R7344

R7386

CN9101

Pin 7

R7352 Pin 1

Pin 2

Troubleshooting

BKE

(B side)

(R7386)

Troubleshooting Reference

Board Name Board PWB (B side) Detail

(C7348) (C7349) (C7350)

C7348

RB1G CHASSIS

W900A/904A/905A

C7349

BKE

(R7344) (R7352)

(F9301)

(A side)

R7352

R7344

C7350

F9301

R7386

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