Minolta Di152 Service Manual page 159

Step Check
1 Exposure Lamp turns ON when the
Power Switch is turned ON.
2 Exposure Lamp is abnormally lit
(flickers or abnormally dark) when
the Power Switch is turned ON.
3 Inverter Board (copier: PU2) connec-
tor is loose.
4 CCD Board (copier: PWB-J) connec-
tor is loose.
5 The following voltage is supplied from
the Control Board (copier: PWB-C).
<Check Procedure>
Check voltage across a Control
Board (copier: PWB-C) pin and GND
when the Power Switch is turned ON.
• Voltage across JP16C-4 and GND
DC24 V when Exposure Lamp
(LA2) is OFF
DC0 V when Exposure Lamp (LA2)
is ON
Result
NO • Go to step 3.
NO • Go to step 4.
YES • Reconnect.
NO • Change Exposure Lamp (LA2).
YES • Reconnect.
YES • Change Inverter Board (PU2).
NO • Change Control Board (copier:
PWB-C).
T-39
Action