Acer P221W - Page 33

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2. Control Board
Checking
Contorl Board
Working ?
Yes
Yes
No
Replug the control
wire, then retry
Button switch and traces
OK ?
No
Replace the
Control Board,
then retry
Transistors and Bead to
Control board OK ?
Yes
No
Replace the
components, then
retry
Replace a new
interface board
Yes