REKLAMA

kdl-55w900a.pdf

Sony KDL-55W905A - wyłącza się, miga czerwona dioda 5x, diagnoza T-con?

Witam, padł mi telewizor (już drugi w tym miesiącu - chyba się załamię :( ) mianowicie po włączeniu telewizor wyłącza się i zaczyna migać czerwona dioda 5 x. Gdy telewizor stał tydzień odłączony, po ponownym włączeniu pojawił się napis HDMI, telewizor działał może z 5 sekund po czym wyłączył się i zaczął mrugać 4x, teraz po włączeniu tylko 5x mruga. Z opisów wyczytałem, że to moduł T-con? Napięcia z zasilacza w trybie standby 12,45V po właczeniu i gdy zaczyna mrugać 0, w trybie standby na listwy ledowe idzie 6,4V (na każdej linii w każdym z 4 złączy). Sprawdziłem PANEL_VCC 12.5V - niestety 0 V oraz JL9112 (BACKLIGHT_MON) - ma być między 0.98V a 1.23V, w standby 0,4V później 0V. Proszę o jakieś rady. edit: mrugająca 5x dioda wskazuje na T-CON, ale czy może być tak że jest ok tak jak led driver (obraz - podświetlony pojawia się na 1s) a paski diodowe nie działają prawidłowo i gdy system logiczny mierzy np pobór napięcia na pasku a dioda jest przerwana to wyłącza telewizor i wykazuje błąd?


Pobierz plik - link do postu

Self Diagnosis

Supported model

HISTORY INFORMATION FOR THE FOLLOWING MANUAL:

REPAIR MANUAL
RB1G Chassis

Segment: HG

MODEL
KDL-55W900A

COMMANDER
RM-YD087/RMF-YD001

DESTINATION
US/CND



KDL-55W900A

Version Date
1.0
04/26/2013
2.0
08/09/2013


Subject
Original Manual Release Date.
Updated Section 2 - Troubleshooting and Section 3 - Repair Information. Replaced pages 12 - 17.
Caution included on Cautions and Warnings Section. Replaced page ii.

LCD Digital Color TV
9-883-520-02

TABLE OF CONTENTS
Cautions and Warnings....................................................................................ii

Section 4 - Exploded View/Part Number Information..................................18

Section 1 - Specifications and Layouts..........................................................1

KDL-55W900A..............................................................................................18

Specifications.................................................................................................1

Smart Core Block.................................................................................................20

Checking the Accesories........................................................................................1

Connectors...................................................................................................21

Board Layout..................................................................................................2

KDL-55W900A......................................................................................................21

KDL-55W900A........................................................................................................2

Smart Core Block.................................................................................................21

Smart Core Block...................................................................................................2

Screws..........................................................................................................22

Wire Dressing.................................................................................................3

Section 5 - Accesories/Part Number Information........................................23

KDL-55W900A........................................................................................................3

Accessories and Packaging.........................................................................23

Smart Core Block...................................................................................................3

Miscellaneous...............................................................................................23

Section 2 - Troubleshooting............................................................................4

Optional Accessories....................................................................................23

Diagnosing the Error......................................................................................4

Remote Commander....................................................................................23

Viewing the Self Check Diagnosis History..............................................................4

Appendix A: Encryption Key Components................................................ A-1

Triage Chart....................................................................................................5
Flowcharts and Diagrams...............................................................................6
Overall Block Diagram............................................................................................6
Power and Control Block Diagram.........................................................................7
No Power Flowchart...............................................................................................8
Standby LED Blinking Flowchart............................................................................9
No Video Flowchart..............................................................................................10
Video Distortion Flowchart.................................................................................... 11

Section 3 - Repair Information.......................................................................12
Repairing the TV...........................................................................................12
Removing the Table-Top Stand.............................................................................12
Removing the Rear Cover....................................................................................12

Replacing the Main Board............................................................................13
Replacing the Power Supply Board..............................................................16
Replacing the Switch Unit............................................................................16
Removing the Speakers...............................................................................16
Removing the Smart Core Block..................................................................17

KDL-55W900A i

CAUTIONS AND WARNINGS
CAUTION!!

ATTENTION!!

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

Ces instructions de service sont à l’usage du personnel de service qualifié
seulement. Pour prévenir le risque de choc électrique, ne pas faire l’entretien
autre que celui contenu dans le Mode d’emploi à moins que vous soyez
qualifié faire ainsi.

WARNING!!
An isolation transformer should be used during any service to avoid possible
shock hazard, in case of live chassis.
!

SAFETY-RELATED COMPONENT WARNING!!

There are critical components used in LCD color TVs that are important for
safety. These components are identified with shading and ! mark on the
schematic diagrams and the parts list. It is essential that these critical parts
be replaced only with the part number specified in the parts list to prevent
electric shock, fire or other hazard.

ALERTE!!
Afin d’eviter tout risque d’electrocution provenant d’un chássis sous tension,
un transformateur d’isolement doit etre utilisé lors de tout dépannage.
!

ATTENTION AUX COMPOSANTS
RELATIFS A LA SECURITE!!

ATTENTION!!

Les composants identifies par une trame et par une marque ! sur les
schemas de principe, les vues explosees et les listes de pieces sont d’une
importance critique pour la securite du fonctionnement. Ne les remplacer
que par des composants Sony dont le numero de piece est indique dans le
present manuel ou dans des supplements publies par Sony. Les reglages
de circuit dont l’importance est critique pour la securite du fonctionnement
sont identifies dans le present manuel. Suivre ces procedures lors de
chaque remplacement de composants critiques, ou lorsqu’un mauvais
fonctionnement suspecte.

For safety reasons, component level repair of the Power Supply Boards
and/or the Inverter Boards is prohibited.

ATTENTION!!

NOTE: Do not modify the original design without obtaining written permission
from the manufacturer or you will void the original parts and labor warranty.

CAUTION ABOUT THE LITHIUM BATTERY!!
Replace only with the same or equivalent type. Danger of explosion may
occur if battery is replaced incorrectly. Exposed battery should not be in
contact with water.

Pour des raisons de sécurité, Interdire de réparer ou remplacer les
composantes dans les blocs d’alimentation et/ou sur les modules d’inverseur.

AVERTISSEMENT AU SUJET
DE LA PILE AU LITHIUM!!
Ne remplacez qu’avec une pile de type identique ou équivalent. Danger
d’explosion si la pile est remplacée incorrectement. La pile exposée ne
devrait pas être mise en contact avec de l’eau.

KDL-55W900A ii

CAUTIONS AND WARNINGS
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.

3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so
analog meters must have an accurate low voltage scale. Nearly all
battery-operated digital multimeters that have a 2 VAC range are
suitable. (see Figure A)
To Exposed Metal
Parts on Set

2. Check the interboard wiring to ensure that no wires are “pinched” or
touching high-wattage resistors.
3. Check that all control knobs, shields, covers, ground straps and
mounting hardware have been replaced. Be absolutely certain that
you have replaced all the insulators.

AC
Voltmeter
(0.75V)

0.15 µF

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
as described in “Leakage Test”.

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 0.5 mA (500 microamperes). Leakage current can be
measured by any one of three methods.

Earth Ground

Figure A. Use an AC voltmeter to check AC leakage.

HOW TO FIND A GOOD EARTH GROUND
The cover-plate retaining screw on most AC outlet boxes is at earth ground.
Verify the AC outlet box retaining screw ground by connecting a 60W to
100W incandescent (not a neon or fluorescent 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 B)
Trouble Light
AC Outlet Box

1. A commercial leakage tester.
Follow the manufacturers’ instructions provided with the tester.
2. A battery-operated AC milliammeter.

Figure B. Checking for earth ground.

KDL-55W900A iii

SECTION 1 - SPECIFICATIONS AND LAYOUTS
SPECIFICATIONS
Model Name

System
Television system

NTSC: American TV standard
ATSC (8VSB terrestrial): ATSC compliant 8VSB
QAM on cable: ANSI/SCTE 07 2000 (Does not include CableCARD functionality)

Channel coverage

Analog terrestrial: 2 - 69 / Digital terrestrial: 2 - 69
Analog Cable: 1 - 135 / Digital Cable: 1 - 135

Panel system

LCD (Liquid Crystal Display) Panel

Speaker output

10 W + 10 W

Input/Output jacks
CABLE/ANTENNA
VIDEO IN 1
COMPONENT IN
VIDEO IN 2
HDMI IN 1/2/3/4

MHL
(common with HDMI IN 2)

75-ohm external terminal for RF inputs

KDL-55W900A

Power and others
110-240 V AC, 60 Hz

Power requirement
Power
consumption

152 W

in use

Less than 0.15 W with 120 V AC and less than 0.3 W with 240 V AC

in standby

Screen Size*
(inches measured diagonally)

54.6 inches
(55 class)
1,920 dots (horizontal) × 1,080 lines (vertical)

Display resolution

Dimensions* with stand

1,241 × 756 × 298

(mm)

Video / Audio input (phono jacks)

without stand

YPB PR (Component Video): 1080p (60 Hz), 1080i (60 Hz), 720p (60 Hz), 480p, 480i

wall-mount
hole pattern

Audio input (phono jacks)
Video input (common phono pin with Y input)
Video (2D): 1080p (30, 60 Hz), 1080/24p, 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p, 480i,
PC Formats
Video (3D):
Frame Packing: 1080p (30 Hz), 1080/24p, 1080i (60 Hz), 720p (30, 60 Hz), 720/24p
Side-by-Side 1080p (60 Hz), 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Over-Under 1080p (30, 60 Hz), 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Audio: Two channel linear PCM: 32, 44.1 and 48 kHz, 16, 20 and 24 bits, Dolby Digital
ARC (Audio Return Channel) (HDMI IN 1 only)
Video (2D): 1080p (30 Hz), 1080/24p, 1080i (60 Hz), 720p (30, 60 Hz), 720/24p, 480p,480i
Video (3D):
Side-by-Side 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Over-Under 1080p (30 Hz), 1080/24p, 1080i (60 Hz), 720p (60 Hz)
Audio: Two channel linear PCM: 32, 44.1 and 48 kHz, 16, 20 and 24 bits, Dolby Digital

AUDIO OUT

300 × 300
(mm)

wall-mount
screw size
Peso*

M6 (8-12 mm)

with stand

22.0 / 48.5

(kg)/(lb)
without stand
(kg)/(lb)

19.7 / 43.4

Others
Optional accessories

Connecting Cables
Support Belt Kit
Camera and Microphone Unit: CMU-BR200/CMU-BR100
USB Wireless LAN Adapter: UWA-BR100
Active 3D Glasses: TDG-BT500A

Stereo mini jack

DIGITAL AUDIO OUT
(OPTICAL)

1,241 × 723 × 61

(mm)

Digital optical jack (Two channel linear PCM, Dolby Digital)

LAN

10BASE-T/100BASE-TX connector (Connection speed may differ depending on the network environment.
10BASE-T/100BASE-TX communication rate and communication quality are not guaranteed for this TV)

USB/DLNA

Refer to the i-Manual for supported formats

REMOTE

RS232C, Serial Control mini jack; IR IN mini jack. These jacks are for receiving the external control signal

Operating Temperature

* Screen size, dimensions and mass are approximate values.

32 ºF – 104 ºF (0 ºC – 40 ºC)

• Optional accessories availability depends on countries/region/TV model/stock.
• Design and specifications are subject to change without notice.

CHECKING THE ACCESORIES
1

- Remote Control (1)*

*
- One-Touch Remote Control (1)

1

- Size AAA Batteries (4)
2
- Table-Top Stand (1)*
- Fixing Screws for Table-Top Stand (M5 x 16) (4)
- Assembling Screws for Table-Top Stand (M5 x 16) (3)
- Active 3D Glasses (Battery Included) (4)
- Operating Instructions and Other Documents
1
* Please refer to the model name printed on the
remote control.
2
* Assembling the Table-Top Stand is required.
Refer to the supplied Table-Top Stand leaflet to
assemble the Table-Top Stand.

KDL-55W900A 1

SECTION 1 - SPECIFICATIONS AND LAYOUTS
BOARD LAYOUT
KDL-55W900A

SMART CORE BLOCK

MAIN BOARD
(BA2S)

POWER SUPPLY
BOARD (G1B)

WLAN
MODULE
HIR BOARD

HSC BOARD

SWITCH
UNIT
TCON

BLUETOOTH
MODULE

SMART CORE
BLOCK

KDL-55W900A 2

SECTION 1 - SPECIFICATIONS AND LAYOUTS
WIRE DRESSING
KDL-55W900A

SMART CORE BLOCK

KDL-55W900A 3

SECTION 2 - TROUBLESHOOTING
DIAGNOSING THE ERROR

Self Diagnosis

Supported model

StandBy LED
Blink Count

Date and Time Display*

Diagnosis
Item

Before servicing the Television:
1. Verify the TV has the symptom the customer indicated.

SELF CHECK

2. Check to see if the latest Software is installed.
a. If not, install the latest version.
3. Determine the replacement part required.

VIEWING THE SELF CHECK DIAGNOSIS HISTORY
When an error is detected, the Self Check screen records the number of
times the error occurred. This is helpful in confirming past occurrences of
an error and for determining if an error is intermittent when the customer is
not sure what is causing the television to shut down. If the screen displays
a “0”, no error has occurred.
1. Press

POWER

to turn on the TV and then turn it off again.

2. Press the following buttons on the Remote Commander within 1
second of each other:


DISPLAY

Channel

5

Volume

-

POWER

NOTE: This differs from accessing Service Adjustments Mode (Volume +).

000
000
002
003
003
003
003
004
004
005
005
005
006
007
007
010
101
102
103
104

RESERVED
RESERVED
MAIN_POWE
DC_ALERT
AUD_PROT
HDMI_EQ
TU_DEMOD
VLED
LD_ERR
HFR_ERR
TCON_ERR
P_ID-ERR
BACKLITE
TEMP_ERR
FAN_ERR
EMITTER
VPC_WDT
MEPS_WDT
HOST_WDT
STBY_WDT

--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
120123132522 120123113645 --------------------- 02
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00

Error Count
(00-99)

00345 000333 06789
Panel operation time by hour (MAX:65535)
Boot count (MAX:65535)
Total operation time by hour (MAX:65535)
*Format of Error History = YYMMDDhhmmss example 120123132522= Jan 23, 2012 13:25:22 (1:25:22PM)
NOTE: date and time must be set for this to work

SAMPLE SELF CHECK DIAGNOSIS PAGE

KDL-55W900A 4

SECTION 2 - TROUBLESHOOTING
TRIAGE CHART
Use this general Triage Chart to determine what may possibly be causing the error before going out to the customers location.
1.
2.
3.
4.
5.

Confirm the symptom from the customer.
Select that symptom from the chart.
Bring the primary component listed for that symptom.
Follow the associated flowcharts in the Training Manual to isolate the board.
Chart Color Code.

Protection Modes

LAN

Board

2X

LCD Panel
TCON

4X

5X

6X



MAIN BOARD
POWER SUPPLY

3X





7X

* ▲

No
WIFI

Dead set

Video

Power






No
Video

Whole
Screen
Distortion





SOFWARE UPDATE
WLAN

*NOTE: REFER TO LCD PANEL SERVICE MANUAL IN
REFERENCE LIBRARY DATABASE FOR CORRECT
REPLACEMENT PARTS BASED ON SERIAL NUMBER.







Audio





SERVICE BULLETIN




8X

Red Dot: (Primary) Most likely defective part.
Blue Triangle: (Secondary) Possible defective part.





Isolated
Area
Distortion

No Audio






* Immediate Shutdown After Power ON & 7X

To access the most recent version of the Triage documents for the models listed in this manual, login into the Sony Authorized Servicer Portal at
http://www.sony.com/asp.

KDL-55W900A 5

SECTION 2 - TROUBLESHOOTING
FLOWCHARTS AND DIAGRAMS
OVERALL BLOCK DIAGRAM
MAIN BOARD

L

IC4601
AMP

RF

R

OPTICAL
AUDIO OUT

TUNER

VIDEO 1 CVBS

HEAD PHONES
OUT

VIDEO 2 CVBS/COMP
HDMI 1

IC5500
HDMI
SWITCH
EQ

HDMI 2
HDMI 3
HDMI 4

IC9000
A/V
DECODER
VIDEO
PROCESS

ETHERNET
USB 1

LVDS

HFR
TCON

BA2S
LCD PANEL

LED BACKLIGHTS
SWITCH
UNIT

BLUETOOTH

WIFI

BT

SMART CORE
USB 2

USB 3

IR RX
LED’s

HIR

LOCAL DIMMING

HSC

LD

AC IN

POWER SUPPLY
G1B

KDL-55W900A 6

SECTION 2 - TROUBLESHOOTING
POWER AND CONTROL BLOCK DIAGRAM

POWER SUPPLY

CN6611
1

REG12V

3

GL_CTRL

4

LD_ERR

5~9

GND

11~14

VLED_VCC

CN6401

CN6001

1

DC_DIMMER

DC_DIMMER

1

2

PWM DMMER

PWM DIMMER

2

3

BL_ERR

BL_ERR

3

5

BL_ON

BL_ON

5

7~12

GND

GND

7~12

13~18

REG12V

REG12V

13~18

TO LED
BACKLIGHTS

LOCAL DIMMING

LD

MAIN BOARD

21~24

GND

GND

21~24

23

STBY3.3V

STBY3.3V

23

27

AC_OFF_DET

AC_OFF_DET

27

28

POWER_ON

POWER_ON

28

G1B

BA2S

KDL-55W900A 7

SECTION 2 - TROUBLESHOOTING
NO POWER FLOWCHART

No Power
Remove AC power and
wait at least 30
seconds before
reapplying.

Does red
Standby LED on
front panel light?

High ( & gt; 2.5V)
on Pin 27 of CN6401
on Power Supply
Board?

Yes

No

Is Standby LED
blinking?

Press power button while
monitoring Pin 28
of CN6401 on
Power Supply
Board.

No

Yes

See Stanby
LED Blinking
Flowchart

Power Supply
Board*

No

Power Supply
Board*



Yes

High (3.3V)
appears
momentarily?

Yes

Power Supply
Board*

No

Main Board*

*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 18.

KDL-55W900A 8

SECTION 2 - TROUBLESHOOTING
STANDBY LED BLINKING FLOWCHART

Protect
Shutdown.
Standby LED
Blinking

Yes

2X

Power Supply
Board*

No

Yes

3X

10X
8X

No

No

Yes

LCD Panel*



HEM3 Board
See Triage Chart

Main Board*

No

4X

Yes

No

5X

Yes

TCON
(LCD Panel)*

6X

Yes

Power Supply
Board*

No

After a while

7X

Check ventilation

Imediately

Main Board*

*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 18.

KDL-55W900A 9

SECTION 2 - TROUBLESHOOTING
NO VIDEO FLOWCHART

No Video

Backlights
turned on?

No

Locate
CN6401 on
Power Supply
Board.

Zero volts at
Pin 2?
Yes

Yes

Sony logo
appears

momentarily?

Yes

TCON*
(LCD Panel)

Main Board*

No

Zero volts at
Pin 4?

No

LCD Panel*

Yes

Main Board*

No

Unplug LVDS
connector with
unit off. Turn unit
back on.

Test patterns
display on
screen?

No

TCON*
(LCD Panel)

Yes

Main Board*



*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 18.

KDL-55W900A 10

SECTION 2 - TROUBLESHOOTING
VIDEO DISTORTION FLOWCHART
Video Distortion

Is distortion
across entire
screen?

Yes

Improper or
missing
colors?
Yes

No

No

Vertical lines
or bars?

No

Main Board*

Any horizontal
lines?

Yes

Yes

Lines
move when
wide-mode
changed?

Yes

Main Board*

No

TCON*
(LCD Panel)

LCD Panel*

No

Any single or
isolated vertical
lines?

Yes

LCD Panel*

No

More than 1
vertical band?



Yes

TCON*
(LCD Panel)

*For Part Number information, refer to “Section 4 - Exploded View/Part Number Information” on page 18.

KDL-55W900A 11

SECTION 3 - REPAIR INFORMATION
REPAIRING THE TV

2. Remove 1 screw from AC Cover and disconnect the AC Power Cord.

If the latest Software does not correct the issue, complete the following:
1. Verify the television has the symptom the customer indicated.
2. Replace part causing the symptom.
3. Install the latest version of Software (Required for ALL repairs).
4. Perform the required service adjustments and checks.
5. Verify the repair resolved the issue.

HOLD

3. Locate and remove 2 screws from Reflector SP, then carefully pull
upwards to detach.

REMOVING THE TABLE-TOP STAND
1. Remove 4 screws from Table-Top Stand and pull down as shown to
detach from Rear Cover.
4. After removing all screws, grasp the AC Cover opening and the bottom
right side of the Rear Cover, then carefully pull upwards to detach.

REMOVING THE REAR COVER
1. Locate and remove all screws from Rear Cover.

CAUTION: To avoid any damage/deformation to the Rear Cover, please
refer to the following illustration.

Avoid grabbing
(Sharp edge, easy to deform).
Grab with care
(Sharp edge).
Ok to grab
(Curled edge).

KDL-55W900A 12

SECTION 3 - REPAIR INFORMATION
REPLACING THE MAIN BOARD
The Main Board used in these models is available for repair. For Part
Number information refer to Section 4 - Exploded View/Part Number
Information on page 18.

5. Remove 7 screws from the Main Board, then lift to detach.

1. Slide Bracket Side and Bracket Under to remove from Main Board.
Bracket
Side

6. Install the new Main Board and screws.
Bracket
Under

7. Reconnect the LVDS Cable and all other connectors.

2. Press down the 2 locking clips and pull LVDS cable to release.

8. Lift the black locking bar to reconnect and secure the connector.
3. Lift the black locking bar and pull the connector to release.

9. Update the Software.
4. Disconnect remaining connectors.

After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the Sony
Authorized Service Portal website.
a. Insert the USB device with the latest Software into the TV.
b. Press

POWER

to turn on the TV.

c. Wait until the Software update is complete and the TV turns OFF.

KDL-55W900A 13

SECTION 3 - REPAIR INFORMATION
10. To access Service Mode, turn TV ON and OFF again then press the
following buttons within 1 second of each other:
DISPLAY

Channel

5

Volume

+

11. When the DIGITAL Menu appears, press
category displays.
12. Press

SERVICE

18. Turn TV OFF again.
19. Access Service Mode by pressing the following buttons within 1
second of each other:
DISPLAY

21. Press

Volume

+

POWER

2 until 002 MODEL

1 until 001 DEST item displays.
DIGITAL
002 MODEL
001 DEST

SERVICE
UC

0 to save the changes.

then

5

20. When the DIGITAL Menu appears, press
category displays.

3 until UC option displays.

MUTING

Channel

STD

DIGITAL
002 MODEL
005 VAR_TYPE

14. Press

2 until 002 MODEL

1 until 005 VAR_TYPE item displays.
DIGITAL
002 MODEL
005 VAR_TYPE

13. Press

POWER

17. After 5 minutes turn TV ON, wait for a successful update screen to
display and remove the USB device.



SERVICE
ATSC-UC_BASE

CAUTION: If the incorrect Destination Data Value is selected, it may
corrupt the Sofware requiring a Main Board replacement.

22. Select the correct destination of the TV , press 3 to increase or
to decrease the data value (Use the table below for reference).
Data Value

US/CND

ATSC-UC_BASE

SERVICE
23. Press

MUTING

then

0 to save the changes.

UC

WRITE
15. When the LED starts blinking, insert a USB device with the latest
Software into the TV.
16. Wait approximately 5 minutes until the Software installation is
completed.


Destination

KDL-55W900A

DIGITAL
002 MODEL
005 VAR_TYPE

Model Name

6

DIGITAL
002 MODEL
001 DEST

SERVICE
ATSC-UC_BASE
WRITE

CAUTION: TV will turn ON and OFF during this process.

KDL-55W900A 14

SECTION 3 - REPAIR INFORMATION
24. Press

1 until 002 MODELNAME displays.
DIGITAL
002 MODEL
002 MODELNAME

25. Press


29. Press

SERVICE

DIGITAL (MODEL)
SerialNumberEdit

_________

3 until the model displayed matches the model of the TV.

MUTING

then

30. Press

WRITE

MODEL NO
KDL-55W900A

_______



CAUTION: The Serial Number can only be selected once. Be sure
to verify the information is correct before saving the changes.



NOTE: If the incorrect Serial Number is entered, press RETURN
to go back to the Serial Number input screen and re-enter
the correct number.

32. Press

SERIAL NO
6600001

1 until 003 SERIAL item displays.
DIGITAL
002 MODEL
003 SERIAL

SERVICE

31. Enter the Serial Number of the TV.

27. Locate the Serial Number for the TV on the side of the Rear Cover.

28. Press

SerialNumberEdit
*1 SerialNumber
Please Input serial number
(0000000-99999999)

SERVICE
KDL-55W900A

to display the Serial Number input screen.

DIGITAL (MODEL)

0 to save the changes.

DIGITAL
002 MODEL
002 MODELNAME

SERVICE

*1 SerialNumber

CAUTION: The Model Name can only be selected once. Be sure
to verify the information is correct before saving the changes.

26. Press

0 to display the Serial Number Edit option.

SERVICE

to save the Serial Number.

DIGITAL (MODEL)
SerialNumberEdit
*1 SerialNumber
6600001

SERVICE

WRITE

33. Cycle AC Power (Unplug and plug AC Cord from the outlet).

KDL-55W900A 15

SECTION 3 - REPAIR INFORMATION
34. Clear the Self Check screen.
a. Press

POWER

2. Remove 5 screws and lift to detach.

to exit Service Mode.

b. Press the following buttons on the Remote Commander within 1
second of each other:
DISPLAY

Channel

5

Volume

-

POWER

3. Install the new Power Supply Board, screws and all connectors.
SELF CHECK
000 RESERVED
000 RESERVED
002 MAIN_POWE
003 DC_ALERT
003 AUD_PROT
003 HDMI_EQ
003 TU_DEMOD
004 VLED
004 LD_ERR
005 HFR_ERR
005 TCON_ERR
005 P_ID-ERR
006 BACKLITE
007 TEMP_ERR
007 FAN_ERR
010 EMITTER
101 VPC_WDT
102 MEPS_WDT
103 HOST_WDT
104 STBY_WDT

4. Update the Software.
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
120123132522 120123113645 --------------------- 02
--------------------- --------------------- --------------------- 00
--------------------- --------------------- -------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00
--------------------- --------------------- --------------------- 00

After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the Sony
Authorized Service Portal website.
a. Insert the USB device with the latest Software into the TV.
b. Press

POWER

to turn on the TV.

c. Wait until the Software update is complete and the TV turns OFF.

Error Count

REPLACING THE SWITCH UNIT
1. Disconnect the 2 connectors. Remove 2 screws from Switch Unit and lift
to detach.

00345 000333 06789

c. To clear the error history and error count press
d. Press

POWER

8

0 .

to exit Self Check Mode.

35. Cycle AC Power (Unplug and plug AC Cord from the outlet).

REPLACING THE POWER SUPPLY BOARD
1. Disconnect all connectors from Power Supply Board.

2. Install the new Switch Unit, screws and connectors.

REMOVING THE SPEAKERS
1. Press down the connector clip and pull to remove, then lift the Speaker
to detach.

KDL-55W900A 16

SECTION 3 - REPAIR INFORMATION
REMOVING THE SMART CORE BLOCK

5. Release connector from Lid SC hook to disconnect.

1. Remove 2 screws, then release the Harness from Smart Core Block
Cover hooks.

6. Unclamp 2 side clips from the Lid,SC and lift as shown to detach.

2. Firmly lift up the Smart Core Block Cover left side to remove.


NOTE: To avoid damaging the Smart Core Block Cover, removal MUST
start from the left side as shown.

LID, SC

7. Carefully, using a flat edge object (ex. steel ruler), release the clip
located on the right side corner, and pull as shown to detach the Panel
Ornament.

3. Disconnect 2 connectors from the Smart Core Block.

8. Remove HIR, Wi-Fi PWB Board and BT Module.

4. Grasp Smart Core Block as shown, then twist it downwards to release.

WIFI PWB
HIR, BOARD

BT, MODULE

9. Release 2 hooks from HSC Board and detach.

HSC BOARD

KDL-55W900A 17

SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
Components not identified by a part number or description
are not stocked because they are seldom required for routine
service.

KDL-55W900A

NOTE: The components identified by shading and !
mark are critical for safety.
Replace only with part number specified.

REF. NO.

The component parts of an assembly are indicated by the reference numbers in
the far right column of the parts list and within the dotted lines of the diagram.
NOTE: The components identified by a red outline and a mark contain confidential
information. Specific instructions must be adhered to whenever these components are
repaired and/or replaced. (See Appendix A)

PART NO.

DESCRIPTION



!


1
2
3
4

4-448-625-01
4-299-531-01
1-839-679-12
4-262-708-04

REFLECTOR SP (RIGHT)
AC COVER
POWER SUPPLY CORD
CLAMPER, CABLE





5
6
7

4-449-241-01
4-448-632-01
4-448-624-01

STAND HEAD NECK
STAND, BASE PT
REFLECTOR SP (LEFT)






8
9
10
11

4-449-005-01
4-449-086-41
4-450-045-01
4-437-720-01

LABEL, REAR TERMINAL
LABEL, UNDER TERMINAL
LABEL, SIDE TERMINAL
REAR COVER

11
1
2
3
10
4

8

5

9
7

6

KDL-55W900A 18

SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
NOTE: The components identified by shading and !
mark are critical for safety.
Replace only with part number specified.

KDL-55W900A

REF. NO.

NOTE: The components identified by a red outline and a mark contain confidential
information. Specific instructions must be adhered to whenever these components are
repaired and/or replaced. (See Appendix A)

PART NO.

DESCRIPTION


51
1-474-484-11

52
4-439-642-01


53
1-858-860-21




65

64

52

54

63
55

Smart
Core
Block
SP Boss*

57
56

62

58

60
59

*Reinstall SP Boss (4)
when replacing
the LCD Panel.

BRACKET, TNK (RIGHT)
BRACKET, TNK (LEFT)
COVER, SC

54
55
56

4-440-050-02
4-440-051-02
4-446-118-01


57
A-1912-886-A



51

53

G1B BOARD, COMPLETE
SHEET, INSULATION (G1)
ORDER THIS PART WHEN REPLACING THE LCD PANEL.
SPEAKER BOX (RIGHT)

BA2S BOARD, COMPLETE
AFTER REPLACING THE MAIN BOARD, YOU MUST
UPDATE THE SOFTWARE TO THE LATEST VERSION.


58
4-452-920-01


59
4-439-634-01

60
4-439-630-32

GASKET (TU)
ORDER THIS PART WHEN REPLACING THE MAIN BOARD.
BRACKET, UNDER
BRACKET, SIDE


61
1-858-860-11

62
1-492-102-11

63
4-440-057-01


SPEAKER BOX (LEFT)
SWITCH UNIT
SHEET, THERMAL (AYU2)
ORDER THIS PART WHEN REPLACING THE LCD PANEL.


64
NA



LCD PANEL
FOR ALL LCD PANEL AND TCON BOARD PART NUMBER
INFORMATION, REFER TO THE LCD PANELS SERVICE MANUAL.


65
4-454-641-01


LABEL, COLOR
ORDER THIS PART WHEN REPLACING THE LCD PANEL.

61

KDL-55W900A 19

SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
NOTE: The components identified by shading and !
mark are critical for safety.
Replace only with part number specified.

SMART CORE BLOCK

REF. NO.

NOTE: The components identified by a red outline and a mark contain confidential
information. Specific instructions must be adhered to whenever these components are
repaired and/or replaced. (See Appendix A)

109

DESCRIPTION

101
102
103

4-446-117-01
1-492-076-11
A-1906-603-A

LID, SC
WLAN MODULE
HSC BOARD, MOUNTED





101

PART NO.





104
105
106

1-492-062-11
4-454-489-01
A-1906-619-A

BLUETOOTH MODULE
CASE, SC
HIR BOARD, MOUNTED





107
108
109

4-440-734-01
4-440-733-01
4-451-771-01

GASKET (B)
GASKET (W)
PANEL ORNAMENT, SC A

108
107
106

102
103
104

105

KDL-55W900A 20

SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
CONNECTORS

NOTE: The components identified by shading and !
mark are critical for safety.
Replace only with part number specified.

KDL-55W900A

NOTE: The components identified by a red outline and a mark contain confidential
information. Specific instructions must be adhered to whenever these components are
repaired and/or replaced. (See Appendix A)

SMART CORE BLOCK

201
151
155
152

153
154

REF. NO.

PART NO.

REF. NO.

DESCRIPTION





151
152
153

1-910-803-38
1-910-803-40
1-846-528-11

CONNECTOR ASSEMBLY 28P
CONNECTOR ASSEMBLY 14P
(LVDS) FLEXIBLE FLAT CABLE 51P




154
155

1-910-803-39
1-910-803-41

PART NO.

DESCRIPTION

1-910-803-21

CONNECTOR ASSEMBLY 5P

HARNESS ASSEMBLY
(LVDS) FLEXIBLE FLAT CABLE 32P



201

KDL-55W900A 21

SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
SCREWS

NOTE: The components identified by shading and !
mark are critical for safety.
Replace only with part number specified.

P/N

DESCRIPTION

NOTE: The components identified by a red outline and a mark contain confidential
information. Specific instructions must be adhered to whenever these components are
repaired and/or replaced. (See Appendix A)

KDL-55W900A

4-256-393-01

SCREW, +PSW M3X6 W12

Rear Cover (13), AC Cover (1)

4-159-298-01

SCREW, +PSW M4X10

Bracket TNK Left (2), Bracket TNK
Right (2), Speaker Bracket (4)

2-990-421-41

SCREW (+PSW) (M3X6)

Power Supply Board (5), Main
Board (7), Switch Unit (2),
Smart Core Block (1)

7-685-647-79

SCREW +BVTP 3X10 TYPE2 IT-3

Rear Cover (1), Smart Core
Block (1)

4-268-126-02

SCREW, ORNAMENTAL M6X12

Rear Cover (2)

4-400-043-01

JOINT, SCREW

Rear Cover (2)

4-421-427-01

SCREW, +PSW M5X16 LOCK

Stand Head (5), Stand Neck (3)

2-580-639-01

SCREW, +BVTP 4X12 TYPE2 IT-3

Rear Cover (1), Reflector SP
Right (2), Reflector SP Left (2)

KDL-55W900A 22

SECTION 5 - ACCESORIES/PART NUMBER INFORMATION
ACCESSORIES AND PACKAGING


PART NO.

DESCRIPTION

OPTIONAL ACCESSORIES



4-408-779-01






SCREW, +PSW M5X16 LOCK
(SCREWS TO ATTACH TABLE-TOP STAND TO LCD TV)
For product protection and safety reasons, Sony strongly recommends
that you use the screws provided with the TV.
CAUTION: These screws cannot be used to secure the TV
to the Wall Mount Brackets.







4-460-760-01
4-451-312-11

CASE, BATTERY (SERVICE)
SUPPLEMENT (STAND INSTALLATION)








4-447-572-11
4-447-572-21
4-448-554-11

PART NO.

1-458-628-41
4-414-470-01

DESCRIPTION

3D EYEWEAR (GLASSES)
SUPPORT BELT KIT

MANUAL, INSTRUCTION (ENGLISH VERSION)
MANUAL, INSTRUCTION (FRENCH VERSION)
MANUAL, INSTRUCTION (US/FR/ES VERSION)

REMOTE COMMANDER


PART NO.

1-492-077-13
1-491-987-11

DESCRIPTION

ONE TOUCH REMOTE CONTROL (RMF-YD001)
REMOTE COMMANDER (RM-YD087)

MISCELLANEOUS


PART NO.

DESCRIPTION




3-299-071-07
4-460-761-01

FLYER, SAFETY
PAD, NOSE (SERVICE)





3-674-673-22
7-600-031-97
7-600-031-96

STOPPER (A)
TAPE (3M 1350FB-1) 15MMX66M BLK
TAPE (3M 1350FW-1) 15MMX66M WHT




4-194-082-31
3-876-036-61

TAPE (OP)
UNI-LABEL, BLANK

KDL-55W900A 23

APPENDIX A: ENCRYPTION KEY COMPONENTS
Encryption key components developed by Sony Corporation contain confidential information and shall be handled under the non-disclosure obligations provided
in the applicable agreement with Sony Corporation (and/or its subsidiary).
As part of this agreement specific instructions must be adhered to whenever a Circuit Board containing encryption key components is repaired and/or replaced
pursuant to the following:
1. In the service manual the Circuit Board(s) containing encryption key components shall be identified with a red outline and a .
2. Only repair boards or components listed in the service manual shall be utilized for replacement and/or repair.
3. Disassembly, decryption or reverse-engineering component(s) is strictly prohibited.
4. Any board in which the Servicer replaces an encryption key component must be placed back into the set it orignally came from and the replaced
defective component MUST BE DESTROYED. Boards cannot be swapped.
5. If a Circuit Board identified with a red outline and a

in the service manual is deemed to be defective:

a. and if a core charge is imposed and is covered under the product warranty, the defective un-repaired or modified board MUST BE RETURNED to
Sony.
b. and if the core charge is NOT covered under the product warranty, the defective un-repaired or modified board MUST BE DESTROYED.
6. If a unit is destroyed (such as field scrap), the Circuit Board identified with a red outline and a

in the service manual MUST BE DESTROYED.

is a trademark of Sony Electronics.
Reproduction in whole or part without written permission is prohibited. All rights reserved.
Sony Corporation
9-883-520-02

Sony LCSC
Technical Services
Service Publications Department

English
2013DJ74WEB-1
© 2013.4

KDL-55W900A A-1