Minolta EP5000 - Page 365

Interleaf EP5000/EP4000 TROUBLESHOOTING
97.04.01
T-90
uC0990, C0991
Step Check Item Result Action
Does PC19 operate properly? YES Change PF-105 PWB-A.
1
Using the IC Port Data Check function,
make an input port check on PWB-A
(400) (IC1A) PG3.
NO
Check the Paper Take-Up Roll for op-
eration and, if it is operational, change
PC19.
uC0992, C0993
Step Check Item Result Action
Does PC35 operate properly?
Using the IC Port Data Check function,
YES
Change PF-105 PWB-A.
1
make an input port check on PWB-A
(400) (IC2A) PB3.
NO
Change PWB-H, flat cable, or PC35.
Does PC2 operate properly?
Using the IC Port Data Check function,
YES
Change PF-105 PWB-A.
2
make an input port check on PWB-A
(400) (IC2A) PC1.
NO
Change PC2, PWB-H, or flat cable.
uC0994
Step Check Item Result Action
1
Does M26 turn when the Paper De-
scent key is pressed?
YES
Go to step 3.
Does the voltage across PF-105 PWB-
A PJ4A-6B or PJ4A-7B and GND
YES
Change M26, PWB-H, or flat cable.
2
change from DC0V to DC24V when the
Tray is slid in or the Paper Descent key
is pressed?
NO
Change PF-105 PWB-A.
Does the voltage across PF-105 PWB- YES Change PF-105 PWB-A.
3
A PJ4A-5A and GND vary between
DC0V and DC5V while M26 is turning?
NO
Check the pulse disk and gear.
Change PC5.