Sanyo FVM3982 - Page 9

Repair Flow Chart:Trouble Condition
Power LED turns OFF within 10 sec of power ON.
Power LED turns OFF within
10 sec of power ON.
On analog board:
Is 3.3V supplied to“K17 Pin1”during
LED ON time?
On digital board:
Is 3.3V supllied to “K5A Pin29”?
Unplug cable from digital board
to T.Cnt.board is symptom
changed?
Analog board is not working.
Replace “analog board”.
On power board:
Is the 12V supplied from “CN2 Pin8/9 ”
during LED ON time?
Digital board is not working.
Analog board may also not be working.
Replace “digital board and analog board”.
T Con board is not working.
Digital board may also not be working.
Replace “T Con board&digital board”.
Power board is not working.
Replace “Power board.”
Ｎｏ：０Ｖ
Ｙｅｓ：３．３Ｖ
Ｎｏ：０Ｖ
Ｙｅｓ
Ｎｏ
Digital board is not working.
Replace “digital board”.
Ｙｅｓ：３．３Ｖ
Ｎｏ：０Ｖ
Page4
See TABLE *1.0
See TABLE *2.0
See TABLE *3.0
Page 4