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Strobe NG.
Red-eye reduction mode
NO
YES
Flashes twice
NO
YES
OK
Unable to adjust light
NO
YES
Replace ST unit
YES
OK
Replace CL unit
NO
YES
OK
Sub LCD NG.
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No flash even when
Flashes only once
NO
NO
flash is turned on.
YES
YES
Incorrect wiring
Replace IGBT
NO
on ST board
YES
YES
Fix wiring
Replace ST unit
Flashes twice
NO
NO
YES
OK
Replace D-PCB
NO
YES
YES
OK
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Bad insersion of
Flashes little
ST connector
Broken ST wiring
Replace IGBT
NO
YES
Replace ST unit
NO
Flashes
YES
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