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BUFFALO
Service Manual
19
7.2 PWPC board
No Power
Check AC line volt 110V or 220V
OK
Check AC line
Check the voltage of C905(+)
Check F901, bridge rectified circuit
Check start voltage for the pin3 of IC901
Check R906, R907, IC901
Check the auxiliary voltage is between 10V-16V
1) Check IC901,T901
2) Check ZD901
3) Check D902/D903
OK
Check D910, D912, IC902
OK
NG
NG
No power
NG
NG
OK
Содержание FTD-G731AS
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