4X Blinking – Panel Power Error - Sony KD-43XE7 Series Service Manual

3.3 : 4x Blinking – Panel Power Error
BLM Board
*Check Adaptor / G-board connection
KC 43/49 = LD board & Adaptor
KC 55/65 = G-board
Start
Adaptor: Remove and reinsert Harness from LD board  Main board
G-board: Remove and reinsert Harness from Gboard  Main board
RC ON
Check Adaptor /
*
G board connection
Yes
No
Replace Main IC / B-
TV in standby mode?
TV boot up normally?
Board
Yes
No No
No Yes Suspected LD board /G
Check voltage at
Check PANEL_PWR Check +12.5V_TCON No
Board side issue.
+12.5V_TCON
3.00V-3.33V?
10.8V-13.2V?
Replace PSU unit board
10.8V-13.2V
Yes
End
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