Minolta Di251 Service Manual page 334

(2) C0214: Abnormal image transfer voltage
Power Supply Unit PU1
High Voltage Unit PU2
DC24 V
GND
PWB-A
PJ15A-4A (P.C./I.T. REM)
PJ15A-3A (I.T. CONTROL)
PJ15A-1A (MONITOR)
C0214
Step
1 The voltage across CN11-1 on the side of
Power Supply Unit and GND is DC24 V.
The voltage across CN11-2 on the side of
Power Supply Unit and GND is DC5 V.
2 The voltage across CN17-12 on the side of
Master Board and GND remains DC1.2 V or
less while the malfunction code is being dis-
played.
3 The voltage across CN17-15 on the side of
Master Board and GND remains DC0.9 V or
more while the malfunction code is being dis-
played.
Relevant Electrical Parts
Master Board PWB-A
CN11
1 12
2 11
11 2
12 1
CN17
1 15
12 4
13 3
14 2
15 1
Check
T-36
PU1
PJ9PU1-1 (DC5 V)
PJ9PU1-2 (GND)
PU2
CN1PU2-1 (DC24 V)
CN1PU2-2 (GND)
CN1PU2-3 (GND)
CN1PU2-4 (DC5 V)
CN2PU2-4 (P.C./I.T. REM)
CN2PU2-5 (I.T. CONTROL)
CN2PU2-7 (MONITOR)
Result Action
NO Change Power Supply
Unit.
YES Change Master Board.
YES Change Master Board.
NO Change High Voltage Unit.
4011T533AA