3-2
ONE POINT REPAIR GUIDE
1-3. Service hint (Any picture/ Remark)
1. NO POWER PROBLEM
No power problem occurs when you power on the unit.
1-1. Solution
Check and replace IC903 on main board.
1-2. How to troubleshoot (Countermeasure)
1) Check battery is enough or not.
2) Check 3V3 (FB901).
FB901 is not 3.3 V, replace IC903.
< Main board bottom view >
IC903
IC903
FB901
FB901
Содержание NP5550B
Страница 12: ...2 5 Figure 3 4 Assemble the rear screw 2 EA using a phillips screwdriver ...
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Страница 35: ...3 30 3 29 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Страница 37: ...3 34 3 33 ...