Electrical Troubleshooting Guide (Audio Part); Micom Part Check - LG LM-U1060 Service Manual

SECTION 2. ELECTRICAL
❏ ELECTRICAL TROUBLESHOOTING GUIDE(AUDIO PART)
I MICOM PART CHECK I
P7904 6PIN P-SENS check
YES
IC101 KIA7042?
YES
IC100 78KO/KF2 1 PIN
Power Check
YES
normal
NO
Refer to SMPS
Troubleshooting
NO
Check if IC101 KIA7042
input is over 5V
YES
Check if IC101 KIA7042
input is over 4.3V
YES
normal
- 2-1 -
NO
IC101 KIA7042
relevant parts check
NO
relevant parts
replacement