KDL-46HX857, KDL-55HX857 - Sony TV Service Manual (repair manual). Page 47

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KDL-46HX857/55HX857 38
SECTION 5 - UPDATES AND ADJUSTMENTS
UPDATING THE SOFTWARE
Verify before proceeding to the next step:
 
;
Verified the error is an 8X error 
 
;
Reset the TV to Factory Condition
1.  Check for latest Software Version through Network Connection or 
Reference Library.
2.  Connect and Configure TV Network Connection.
3.  Display the menu by pressing 
HOME
.
4.  Using the         and the 
 on the on the Remote Control, 
select the following: 
Settings 
 
Product Support 
 
Software 
Update.
 
NOTE: If TV is not connected to a network, download the latest 
software for these models and install using a USB device.
5.  Do one of the following:
a.  If the Standby LED blinks red 8 times, proceed to 
“Replacing 
the Main Board” on page 38
.
b.  Clear the Self Check history by following the instructions 
provided in 
“Clearing the Self Diagnosis Self Check 
Information” on page 36
.
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 28
.
COMPLETING SERVICE REQUIREMENTS WHEN  
REPLACING THE LCD PANEL OR TCON BOARD 
The following must be performed after replacing the LCD Panel or TCON 
Board to ensure that all of the features for the TV will be available. 
 
Updating the Software
 
Copying the BU Flash Data
 
Confirming the Model ID and Product ID
 
Resetting the Panel Operation Time
 
Clearing the Self Diagnosis Self Check Information
UPDATING THE SOFTWARE
There are 2 situations that can occur after replacing the LCD Panel or 
TCON Board. 
1.  After replacing the LCD Panel or TCON Board, 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”.
2.  After the update is complete, proceed to 
“Copying the BU Flash 
Data”.
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