LG HR832T Service Manual page 99

ELECTRICAL TROUBLESHOOTING GUIDE
No Vcc_12 V_LOADER / HDD_12 V
YES
Is the
Vcc 13 V supplied to IC206
pin2?
YES
Is there 3 V
at IC206 pin1?
YES
Check IC206
and replace.
No 5 V_HDD
YES
Is the
Vcc 13 V supplied to IC290N
pin2?
YES
Is there 3 V at
IC290N pin6?
YES
Is there
pulse 5 V at IC290N
pin7 & 8?
NO
Check IC290N
and replace.
NO
Check 13VA on SMPS board.
Check PWR_CTL signal
NO
from IC302 (MICOM).
NO
Check 13VA on SMPS board.
Check PWR_CTL signal
NO
from IC302 (MICOM).
YES
Check or replace L292N.
3-84