Konica Minolta Di1611 Service Manual page 188

Di1611/Di2011 FIELD SERVICE Ver.1.0 Mar. 2004
Step
6 Check of output of DC 5 V to Master
Board (copier: PWB-A)
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) pin and GND when the
Power Switch is turned ON.
• Voltage across PJ6A-9 and GND
DC0 V when the Power Switch is OFF
DC24 V when the Power Switch is
turned ON
7 Check of output of DC5 V to control
panel (UN2)
<Check Procedure>
Check voltage across a Control Board
(copier: PWB-C) pin and GND when the
Power Switch is turned ON.
• Voltage across P102C/C-1 and GND
DC0 V when the Power Switch is OFF
DC5 V when the Power Switch is
turned ON
Check
3-39
TROUBLESHOOTING
Result Action
NO • Change DC power Sup-
ply (PU1).
NO • Check Control Board
(copier: PWB-C).
• Change Master Board
(copier: PWB-A).
• Change DC power Sup-
ply (PU1).
YES • Change Control Panel
(UN4).