KDL-22EX320, KDL-22EX325, KDL-24EX320, KDL-24EX325, KDL-26EX320, KDL-26EX321, KDL-26EX325, KDL-32CX520, KDL-32CX521, KDL-32CX523, KDL-32CX525, KDL-32EX421, KDL-32EX425, KDL-32EX520, KDL-32EX521, KDL-32EX523, KDL-32EX524, KDL-32EX525, KDL - Sony TV Service Manual (repair manual). Page 25

Read Sony KDL-22EX320 / KDL-22EX325 / KDL-24EX320 / KDL-24EX325 / KDL-26EX320 / KDL-26EX321 / KDL-26EX325 / KDL-32CX520 / KDL-32CX521 / KDL-32CX523 / KDL-32CX525 / KDL-32EX421 / KDL-32EX425 / KDL-32EX520 / KDL-32EX521 / KDL-32EX523 / KDL-32EX524 / KDL-32EX525 / KDL Service Manual online

Service Procedure for Panel, Board and Software Change / Upgrade(WW)
25
1.
Replace the Service Panel.
2.
Confirm and change the following from the Service menu:
a. Change VPC MENU 001 DATA_BUCKUP , 000 BU_FLASH.
b. Confirm Model_ID , Product_ID , Software Version from DIGITAL menu.
3. 
Reset the Panel Operation Time from the Service menu.
4. 
Conclude the operation.
2-1. Steps After Replacing the Service Panel
Note: Before operation, disconnect all cables connected to the set.
SEC.2 SERVICE PANEL
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