Xerox Phaser 7750DXF, Service Manual, Page: 384 / 505

10-60 Phaser 7750 Printer Service Manual
Drum Drive Control K
MCU PWB PL13.1
I/F PWB PL9.1
P/J410
A11 A10
A9 A8
A12 A13 A15 A14
+5VDC
DC COM
DC COM DC COM DC COM DC COM
+24VDC
INTLK
DC COM
1
2 2 2 2
3
TD
1
TD
1
MOT
FG
A7
I/F PWB PL9.1
MCU PWB PL13.1
+3.3VDC
47
P/J410
4
DRUM MOTOR (K)
FA
IL SIGNAL
9.31A
9.8
43 44 45 46
J534
J235
J235
DC330 [004-006]
DRUM MOTOR (K)
ON (L) +5VDC
DC330 [004-006]
DRUM MOTOR (K)
REF CLOCK (L) +5VDC
DC330 [004-006]
DRUM MOTOR (K)
HIGH SPEED (L) +5VDC
DC330 [004-006]
DRUM MOTOR (K)
HIGH SPEED (L) +5VDC
BLU
BLU
BLU
BLU BLU BLU GR
Y
VIO
ORN
VIO
DRUM MOTOR (K) PL1.1
SERVO CONTROL
DC330[004-102]
DRUM MOTOR (K)
FA
IL (H) +3.3VDC
J534
9
5 6 7 8 4 3 1 2
DRUM (K)
DRIVE
9.2 DRUM DRIVE CONTROL (K)
NOTES: Drives at high speed for standard paper and at half speed for OHP film. Remove Drum K before turning on DC300 {004-006]. T
urning on
Drum Motors with the drum installed may damage the Drum blade. T
urning on DC300 [004-006] allows the Drum Motors to rotate at normal
(high) speed and DC300 [004-009] at half speed, and DC330 [004-010] at double speed. The rotation speed is controlled compared with the intenal clock. Virtual Line
1 2 3 4
Test Point MCU PWB J407-B3(+) to GND (-). A frequency of approx. 1.285KHz.
7750-292