Replacing The Main Board - Sony KDL-42W650A Repair Manual

5. After removing screws, firmly grasp as shown to separate Chassis Box
from TV.
6. Grasp and pull upwards on left and right side of Chassis Box to release
clips. Lift it upwards to detach.

REPLACING THE MAIN BOARD

The Main Board used in these models is available for repair. For Part
Number information refer to
Information on page 18.
1. Remove Harness and screws from the Main Board Bracket.
2. Turn Main Board Bracket and disconnect the remaining connectors.
KDL-42W650A
Section 4 - Exploded View/Part Number
SECTION 3 - REPAIR INFORMATION
3. Slide brackets to detach from Main Board.
4. Locate and remove screws, then lift the Main Board to detach.
5. Install the new Main Board and screws.
6. Reconnect the LVDS Cable and all other 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
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.
POWER
d. Press
e. Wait until the Software update is complete.
on the remote to turn ON the TV.
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