Read Sony KDL-70X4500 (serv.man3) Service Manual online
KDL-70X4500 (K) 2-12E
G9 Board check
CN800/CN6803 1pin
REG24V
24
±
2.0V
No
Signal board has problem.
Check signal-board.
Check signal-board.
CN6800 12pin
INV_ON
more than 3V
No
G9 board has problem.
Change G9 board.
Change G9 board.
Inverter or balance has problem.
Check Panel.
Check Panel.
Yes
Yes
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