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REPLACING THE MAIN BOARD
The Main Board used in these models is available for repair. For Part
Number information refer to
Information on page 16.
1. Locate and disconnect all connectors and LVDS Cable. Then remove all
screws from the Main Board and lift to detach.
2. Locate the Main Bracket, remove all screws and lift to detach.
Main Bracket
Main Bracket
3. Install the new Main Board, connectors, LVDS Cable and screws.
4. 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 Power
on the TV to turn it ON.
I/0
e. Wait until the Software update is completed.
KDL-40R355B
Section 4 - Exploded View/Part Number
SECTION 3 - REPAIR INFORMATION
5. To access Service Mode, turn TV ON and OFF again then press the
following buttons within 1 second of each other:
DISPLAY
Status Information
Self diagnosis history
Panel Selection
Wide Band Tuning
LVDS Spectrum (%)
Tuning System
Status Digital RF Information
Low of HPD
UART Selection
SERIAL NUMBER EDIT
MODEL NAME EDIT
TEST RESET
+
5
Channel
Volume
Service Mode
<[
NS4S400DND1101
<[
<[
<[
<[
Factory
<[
[</>]Set [Home] Exit
Power
I/0
>>
>>
]>
>>
]>
29
]>
Auto
]>
Off
5
]>
Off
Off
]>
12
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