Have a video but no sound
heck M/B wire
C
connect CN7 plug
OK
Check Speaker
Connect Assy
OK
Check M/B CN 9,
pin 6=12.5V
OK
Change new main board
NG
Re-plug in
Re-plug wire/
NG
Change new Speaker
NG
Change new Power board
40": PK101W0810I
50":PK101W0800I/PK101W0820I
2
