2-27
ONE POINT REPAIR GUIDE
No power problem occurs when you power on the unit.
1-2. VFD, 14 VA, 5.5 VA
1-2-1. Solution
Replace D922, D923, D924, D925, D926, D927, IC901.
1-2-2. How to troubleshoot (Countermeasure)
Case 1) FLD abnormal: Check D950, D951, ZD951, ZD952, FR950 and replace it.
Case 2) 5.5 VA abnormal: Check D952, D953 and replace it.
Case 3) 14 VA abnormal: Check D955, D956 and replace it.
Case 4) All voltage abnormal: Check IC901 and replace it.
1-2-3. Service hint (Any picture / Remark)
< SMPS board top view > < SMPS board bottom view >
Case 1
Case 1
Case 2
Case 2
Case 3
Case 3
Case 4
Case 4
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