Xerox Phaser 3110 Service Manual page 76

Schematic Diagrams
9-4 HVPS Circuit Diagram(1/2)
5V
R401
100
R411
R422
2.2K
5.6K
Q401
A708-Y
MHV-PWM
3 4
CN1-#6
U2-B
7407
5V
R501
5.6K
R503
100
BIAS-PWM
1 2
R502
CN1-#7
U2-A
2.2K
7407
CN1
GIL-S-9P-S2T2-EF
24VS
1
A-GND
2
THV-PWM
3
4 THV-EA
THV-READ
5
MHV-PWM
6
BIAS-PWM
7
8 5V
9 D-GND
9-16
18V
R405
220KF
R403 R404
110KF 33K
D111
1N4148
R402
56KF
R412
2K C408 C401
104
222 R406
2.2KF
VR401
50K
18V
R508
86.6KF
Q501
A708-Y
R507
27K
R505
100KF R506
C501
100KF
104
R504 C502
2K 222 R509
12KF
VR501
50K
24VS
U3
KA7818
IN OUT
GND
C1
104
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24VS
C402 R407
103 240K
T401
KAB-006
1
12
Q402
+
14 5
D526-Y
13 2
-
R408
U1-D
47K
KA324
4
R409
430
C403
R410
333
1W 3
D403
1N4148
24VS
R510
C503
47K
104
Q502
D526-Y
9
-
8
10
+
R511 R512
U1-C
47K 430
KA324
R513
C504
D501 1W 3
333
1N4148
18V
+
C2 C3
35V 47uF
104
D401
C404
4KV
3KV 471
7
R413
MGR1/2W 6MF
6
C406
3KV 471
C405 D402
2KV 680
4KV
R414
MGR1/2W 6MF
ZD401
1W 130V
T501
D502
KAB-006 R514
4KV
MGR1/2W 15MF
1 7
5 6
C506
2
3KV 471
C505
2KV 680
4
R515
MGR1/2W 15MF
R426
MGR1/2W 100KF
MHV
R416
MGR1/2W 15MF
OPC
R417
MGR1/2W 15MF
R516
MGR1/2W 50K
SUPPLY
ZD501
1W 100V
DEV
R519
MGR1/2W 50K
R517
MGR1/2W 15MF