LG LAP340 - System Part

3-10
ELECTRICAL TROUBLESHOOTING GUIDE
4. SYSTEM PART
Power On
It works properly.
Check IC104.
Replace X100.
Check CN800.
Replace IC100 R5F100GEAFB
Check Q800.
LED blinking
at the front?
NO
Main Board
Front Board
NO
NO
NO
IC100
3.3V_MICOM, 3.3 V
OK?
X100
20.000 MHz
OK?
Work properly
CN800 Pin1?
YES YES
YES
YES