Read Sony KDL-55W900A Service Manual online
KDL-55W900A 13
SECTION 3 - REPAIR INFORMATION
5. Remove 7 screws from the Main Board, then lift to detach.
6. Install the new Main Board and screws.
7. Reconnect the LVDS Cable and all other connectors.
8. Lift the black locking bar to reconnect and secure the connector.
9. Update the Software.
After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the
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.
REPLACING THE MAIN BOARD
The Main Board used in these models is available for repair. For Part
Number information refer to
Number information refer to
Section 4 - Exploded View/Part Number
Information on page 18.
1. Slide Bracket Side and Bracket Under to remove from Main Board.
Bracket
Side
Side
Bracket
Under
Under
Bracket
Side
Side
Bracket
Under
Under
2. Press down the 2 locking clips and pull LVDS cable to release.
3. Lift the black locking bar and pull the connector to release.
4. Disconnect remaining connectors.
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