Sony XBR-55X900A Service Manual ▷ View online
XBR-55X900A 13
SECTION 2 - TROUBLESHOOTING
NO 3D VIEWING
Double images
displayed on
screen?
Yes
Main Board*
No
Press “3D” button on
Remote Commander
and select
“Simulated 3D”.
Passive 3D
Glasses
View image with
Passive 3D
Glasses.
Double images
become one?
Yes
3D OK
No
3D Not Working
*For Part Number information, refer to
“Section 4 - Exploded View/Part Number Information” on page 28
.
XBR-55X900A 14
SECTION 3 - REPAIR INFORMATION
REPAIRING THE TV
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.
REMOVING THE TABLE-TOP STAND
AND COVER UNDER
1.
Place TV face down on a soft and flat surface.
2. Grasp Cover Under as shown, then carefully pull upwards to release the
locking clips and lift to detach.
3. Remove 4 screws from Table-Top Stand and pull down as shown to
detach from Rear Cover.
REMOVING THE REAR COVER
1. Remove 1 screw from AC Cover and disconnect the AC Power Cord.
HOLD
2. Remove 3 Screw Caps from the top of the Rear Cover.
3. Locate and remove all screws from the Rear Cover.
4. Grasp Rear Cover as shown and lift to detach.
XBR-55X900A 15
SECTION 3 - REPAIR INFORMATION
4. Remove 13 screws from the Main Board, then lift to detach.
5. Install the new Main Board and screws.
6. Reconnect the LVDS, FFC cables, and all other connectors.
CAUTION: Make sure the black line is aligned to the connector before
locking.
locking.
a. Reconnect LVDS cables in the connectors and press down the 2
locking clips to secure position.
b. Lift the black locking bar to reconnect the FFC Cable and secure
the connector.
7. Reconnect remaining connectors.
REPLACING THE MAIN BOARD
The Main Board used in this model is available for repair. For Part Number
information refer to
information refer to
Section 4 - Exploded View/Part Number Information on
page 28.
1. Disconnect LVDS and FFC cables.
a. Press down the 2 locking clips and pull LVDS cables to release.
b. Lift the black locking bar and pull FFC cable to release.
2. Disconnect remaining connectors.
3. Slide Bracket Side and Bracket Under to remove from Main Board.
Side Bracket
Side Bracket
Under Bracket
Under Bracket
XBR-55X900A 16
SECTION 3 - REPAIR INFORMATION
8. Update the Software.
After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the Sony
website.
Instructions are included with the Software package on the Sony
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.
9. Access
Service Mode by pressing the following buttons within 1 second
of each other:
DISPLAY
Channel
5
Volume
+
POWER
10. When the
DIGITAL Menu appears, press
2
until
002 MODEL
category displays.
11. Press
1
until
001 DEST item displays.
DIGITAL
SERVICE
002 MODEL
001 DEST
ATSC-UC_BASE
CAUTION: If the incorrect Destination Data Value is selected, it may
corrupt the Sofware requiring a Main Board replacement.
corrupt the Sofware requiring a Main Board replacement.
12. Select the correct destination of the TV , press
3
to increase or
6
to decrease the data value (Use the table below for reference).
Model Name Destination
Data Value
XBR-55X900A
US/CND
ATSC-UC_BASE
13. Press
MUTING
then
0
to save the changes.
DIGITAL
SERVICE
002 MODEL
001 DEST
001 DEST
WRITE
ATSC-UC_BASE
14. Press
1
until
002 MODELNAME displays.
DIGITAL
SERVICE
002 MODEL
002 MODELNAME
_________
15. Press
3
until the model displayed matches the model of the TV.
CAUTION: The Model Name can only be selected once. Be sure
to verify the information is correct before saving the changes.
to verify the information is correct before saving the changes.
16. Press
MUTING
then
0
to save the changes.
DIGITAL
SERVICE
002 MODEL
002 MODELNAME
XBR-55X900A
WRITE
17. Locate the Serial Number for the TV on the side of the Rear Cover.
MODEL NO
XBR-55X900A
SERIAL NO
1800001
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