KLV-40/46/55X450A (E, GE) 24
6) GL Board
GL check
CN6788
LED_xMUTE
more than 1V?
No
Signal board has problem.
Check signal-board
Panel has problem.
Check Panel
GL board may have problem.
Change GLboard.
Picture OK?
No
Yes
CN6730
PFC_OUT
=390V
±
5%
No
G6 board has problem.
Change G6 board
CN6930
PFC_OUT
=390V
±
5%
No
G7 board has problem.
Change G7 board
Yes
Yes
GL board has broken.
Yes
G6 (L)
CN65051-2pin
=20V
±
30%
Yes
No
G6 board has problem.
Change G6 board
www.freeservicemanuals.info
10/30/2018
Digitized in Heiloo the Netherlands
Not for sale!