3-10
ONE POINT REPAIR GUIDE
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 63pin of IC101 is not ‘High’, change IC101.
But, the new μ-com IC need to write program.
1-3. Service hint (Any picture / Remark)
X100
IC 103
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