Read Sony XBR-49X855B Service Manual online
XBR-49X855B 14
SECTION 3 - REPAIR INFORMATION
3.
Locate the K2 Board and remove 2 screws, then lift as shown to detach.
K2, Board
K2, Board
4.
Locate and remove 4 screws from the Tuner Board, release the clip and
lift as shown to detach.
Tuner Board
Tuner Board
5.
Locate and remove all screws from the Main Board, then lift as shown
to detach.
6.
Install the new Main Board, K2 Board and/or Tuner Board, screws and
all connectors.
7.
Update the Software.
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 one of the TVs’
USB ports.
b. Connect TV to AC power.
c.
Wait at least 20 seconds.
d. Press the Power button
I/0
on the TV to turn it ON.
e.
Wait until the Software update is completed.
3.
Locate the Cover, Stand and lift as shown to remove from Rear Cover.
Cover, Stand
Cover, Stand
4.
Lift the Rear Cover as shown to remove.
REPLACING THE MAIN BOARD AND TUNER BOARD
The Main Board and Tuner Board used in this model are available for
repair. For Part Number information refer to
Section 4 - Exploded View/Part
Number Information on page 20.
1.
Slide the Side Bracket as shown to detach from the Main Board.
Side
Bracket
Side
Bracket
2.
Locate and disconnect all connectors. Then remove all screws from
the Main Board Plate to detach.
Main, Plate
Main, Plate
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