Minolta Di183 Manuel de service Page 145

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FrameMaker Ver.5.5E(PC) Di152/Di183 TROUBLESHOOTING
01.09.04
T-25
(3) C004E: Power Supply Cooling Fan Motor malfunction
Relevant Electrical Parts
Power Supply Cooling Fan Motor (M4) Master Board (copier: PWB-A)
Step Check Result Action
1 Power Supply Cooling Fan Motor
(M4) turns when the Power Switch is
turned ON.
NO Check for overload.
2 The following voltage is supplied to
the Power Supply Cooling Fan Motor
(M4).
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when
the Power Switch is turned ON.
Voltage across PJ19A-1 and GND
DC8 V during rotation at deceler-
ated speed
DC24 V during rotation at full
speed
YES Change Power Supply Cooling Fan
Motor (M4).
3 The following voltage is supplied to
the Power Supply Cooling Fan Motor
(M4).
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when
the Power Switch is turned ON.
Voltage across PJ19A-3 and GND
DC0 V when energized
NO Change Power Supply Cooling Fan
Motor (M4).
YES Change Master Board (copier:
PWB-A).
PWB-A
Master Board
POWER SUPPLY SECTION
Power Supply
Cooling Fan Motor
4022T527AA
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