KD-43/49X8301C (FW-43/49X8370C), 8305C, 8307C, 8308C, 8309C
115
TROUBLE SHOOTING
3-5-8. FOR 12V LNB Voltage Checking: @ AEP_W and JP_SKP
12V LNB Voltage Checking
NG
OK
OK
NG
Change the fuse
Check fuse F6000
Check Tuner power line
12V at JL9012 = 12V?
Check P_ON_LNB signal line
at R9167 = 3.3V?
MOSFET Q9019
broken
OK
NG
Check harness between
B-Board and G-board
OK
NG
Harness broken
Please refer G-board
troubleshooting
Please refer DDCON
troubleshooting