One Point Repair Guide; Power Problem - LG CM2630B Service Manual

1. NO POWER PROBLEM
No power problem occurs when you power on the unit.
1-1. Solution
Replace X100, IC101, IC103.
1-2. How to troubleshoot (Countermeasure)
1) Check X100 (Crystal).
If it does not oscillate, change X100.
2) Check IC103 (Reset IC).
If its output voltage is not more than +2.7 V, change IC103.
3) Check IC101 (Micom).
After power is on if the pin8 of IC101 is not 'High', change IC101.
But, the new μ-com IC need to write program.
1-3. Service hint (Any picture / Remark)
IC103

ONE POINT REPAIR GUIDE

X100
IC101
< MAIN board top view >
3-2