KDL-22EX550, KDL-22EX553, KDL-22EX555, KDL-26EX550, KDL-26EX553, KDL-26EX555, KDL-32EX650, KDL-32EX653, KDL-32EX655, KDL-32HX750, KDL-32HX751, KDL-32HX753, KDL-32HX755, KDL-32HX757, KDL-32HX758, KDL-32HX759, KDL-40EX650, KDL-40EX653, KDL - Sony TV Service Manual (repair manual). Page 8

Read Sony KDL-22EX550 / KDL-22EX553 / KDL-22EX555 / KDL-26EX550 / KDL-26EX553 / KDL-26EX555 / KDL-32EX650 / KDL-32EX653 / KDL-32EX655 / KDL-32HX750 / KDL-32HX751 / KDL-32HX753 / KDL-32HX755 / KDL-32HX757 / KDL-32HX758 / KDL-32HX759 / KDL-40EX650 / KDL-40EX653 / KDL Service Manual online

Service Procedure for Panel, Board and Software Change / Upgrade(EU)
8
[Making procedure]
1. Get a tvupdate file for upgrade.
2. Extract tvupdate file. (e.g. sony_tvupdate_2012_****_***_auth.zip)
3. Confirm folder name. (e.g. sony_dtv************_********)
4. Copy the folder under root directory of USB device. 
Note: The upgrade will not be performed if the folder structure, name of the folder, or name of the file inside the folder is modified.
Extract
*Either USB slot is OK.
sony_tvupdate_2012_****_***_auth.zip
*** may differ depend on the destination.
1-3. Preparing USB for Upgrade
SERVICE BOARD
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