6-2
No Power Detected
(stand by LED OFF)
F1S01 is normal?
BD01~04, ZD1S01~2
SHORT and OPEN
are normal?
Check feedback IC1S01
Change short circuited or
opened parts
Change fuse
Check 2'st Voltage
Replace Q1S01
NO
NO
Is there voltage at
Collector of
Q1S01
NO
YES
YES
YES
Operation of
Q1S01 is
normal?
NO
YES
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QQ 376315150
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299