C1300: Polygon Motor Malfunction (Startup Failure, Lock Signal Failure, Faulty Lock Signal) C13F0: Faulty Hsync - Konica Minolta 7115 Service Manual

(13) C1300: Polygon Motor malfunction (startup failure, Lock signal failure, faulty
Lock signal)
C13F0: Faulty HSYNC
Polygon Motor (M2)
IR/PH SECTION
Polygon Motor
Step Check
1 C1300/C13F0 reappears when the
copier is turned OFF and ON again.
<Check Procedure>
Turn OFF and ON the Power Switch
to check to see if C1300/C13F0 reap-
pears.
2 Polygon Motor (M2) connector PJ13A
is loose.
3 The following voltage is supplied to
the Polygon Motor (M2).
<Check Procedure>
Check voltage across a Master Board
(copier: PWB-A) and GND when the
Start key is pressed.
• Voltage across PJ13A-3 and GND
DC5 V while Polygon Motor (M2) is
in standby state
DC0 V when Polygon Motor (M2) is
energized
Relevant Electrical Parts
Master Board (copier: PWB-A)
PWB-A
Master Board
Result
YES • Go to step 2.
YES • Reconnect connector PJ13A.
YES • Change PH Unit.
NO • Change Master Board (copier:
PWB-A).
T-36
4022T534AA
Action