Read Sharp AR-C200P (serv.man5) Service Manual online
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1
The printer does not function properly after power ON.
•
Turn the power OFF then ON.
•
Is displayed? (Approx. 1 sec.)
• No Is the AC cable connected properly?
No Connect the AC cable properly.
▼• Yes Is +5V output to the panel connector (OPTN connector) on the engine board (K7N PWB)?
Pin 10, 11, 18: +5V Pin 5, 7, 15,20: 0V
Yes Is +5V output to the panel connector on the relay board (Y73 PWB)?
Pin 5: +5V Pin 2: 0V
No Replace the relay board.
Yes Is the operator panel cable connected properly?
No Connect the cable properly.
Yes Replace the operator panel cable. Is operation recovered?
No Replace the cover assembly of the operator panel.
Yes End.
▼• No Is +5V output to the power connector on the engine board (K7N PWB)?
Pin 5, 6, 7, 8: +5V Pin 1, 2, 3, 4, 9, 10, 11: 0V
No Check the power connection connector, then replace the low-voltage power supply
unit.
▼• Yes Replace the engine board.
▼• Yes
Are the following voltages output to the PU IF connector on the main board?
Pin 137-147, 187-197 : +5V
Pin 125-136, 175-186
: +3.3V
Pin 148, 198
: +12V Pin 101-124, 149-174, 199, 200 : 0V
Yes Replace the main board.
▼• No
Is the following voltage output to the power connector on the engine board?
Pin 5, 6, 7, 8
: +5V
Pin 15
: +12V
Pin 12, 13, 14 : +34V
Pin 1, 2, 3, 4, 9, 10, 11 : 0V
Yes Replace the engine board.
▼• No
Replace the low-voltage power supply unit.
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