AR-M700 (serv.man26). Setting and adjustments - Sharp Copying Equipment Service Manual (repair manual). Page 43

AR-M550/M620/M700  SETTING AND ADJUSTMENTS  7 - 43

This adjustment is needed in the following situations: 

• The operation panel has been replaced. 

• U2 trouble has occurred. 

• The MFP control PWB has been replaced.

• The EEPROM on the MFP control PWB has been replaced.

1) Go through the modes specified in Simulation 65-1. 

2) Press the four cross mark points. 

Pressing the cross mark points correctly results in gray display. When
the touch panel adjustment is complete with the four points pressed,
the sub-number entry screen for simulation reappears. 

If any error is detected, the touch panel returns to adjustment mode. 

Note: Never use something with a sharp tip (such as a needle or pin)

to press the touch panel.

This adjustment is needed in the following situations:

• One or more parts of the DC main power supply unit have been

replaced.

• One or more parts of the DC sub power supply unit have been

replaced.

1) Apply a digital multi-meter to the DC main PWB 24 V line (CN3, 1

pin) and GND (CN3, 4 pin). 

2) Turn RV202 on the DC main power supply PWB so that the volt-

age is 24 V.

3) Apply a digital multi-meter to the DC main PWB 38 V line (CN8, 1

pin) and GND (CN8, 4 pin). 

4) Turn RV201 on the DC main power supply PWB so that the volt-

age is 38 V.

5) Apply a digital multi-meter to the DC sub PWB 12 V line (CN4, 1

pin) and GND (CN4, 6 pin).

6) Turn RV102 on the DC sub power supply PWB so that the voltage

is 12 V.

SIMULATION 65-1

RV202

(CN3, 4pin) (CN3, 1pin)

GND

+24V

RV201

(CN8, 4pin) (CN8, 1pin)

GND

+38V

RV102

(CN4, 6pin) (CN4, 1pin)

GND

+12V