KDL-32EX655, KDL-40EX655 - Sony TV Service Manual (repair manual). Page 43

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KDL-32EX655/40EX655 34
SECTION 5 - UPDATES AND ADJUSTMENTS
5.  Do one of the following:
a.  If the Standby LED blinks red 8 times, proceed to 
Replacing the Main Board. 
b.  Clear the Self Check history by following the instructions 
provided in 
“Clearing the Self Diagnosis Self Check 
Information” on page 31
.
REPLACING THE MAIN BOARD
The  Main  Board  should  be  replaced  only if all other options have not 
resolved the issue.
Verify before proceeding to the next step:
 
;
Verified the error is an 8X error
 
;
Reset the TV to Factory Condition
 
;
Updated the Software
1.  Follow all of the instructions in 
“Completing Service 
Requirements When Replacing the Main Board” on page 
25
.
COMPLETING SERVICE REQUIREMENTS WHEN 
REPLACING THE LCD PANEL
The following must be performed after replacing the LCD Panel to ensure 
that all of the features for the TV will be available. 
 
;
Update the Software
 
;
Confirm Model ID and Product ID
 
;
Reset the Panel Operation Time
 
;
Clear the Self Diagnosis Self Check information
UPDATING THE SOFTWARE
After replacing the LCD Panel you MUST UPDATE the SOFTWARE to the 
latest version.
Whenever the LCD Panel is replaced, the software must be updated so 
that the new LCD Panel syncs with the Main Board. If a message displays 
indicating the latest software is already installed, proceed to Resetting the 
LCD Panel to Update the Software. 
There are 2 situations that can occur after replacing the LCD Panel:
1.  After replacing the LCD Panel turn the TV ON.
Case 1 - If there is no picture displayed and lights flash on the front 
panel, insert the USB device. The update will start automatically.
NOTE: This update may take up to 5 minutes to complete. Do not 
remove the USB device, turn off the TV or unplug the power cord 
while the update is in progress. 
Case 2 - If the picture displays, you will need to reset the LCD 
Panel ID to force update the software. Proceed to 
“Resetting the 
LCD Panel to Update the Software” on page 26.
2.  After the update is complete, proceed to
 Confirming the 
Model ID.
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