Xerox Phaser 3120 Service Manual page 78

8.3 HVPS Circuit Diagram (1/2)
5V
R202
100
Q201
CON2-16
A708-Y
THV-PWM
R201
THV-sen
430
R204 R205
47K 22K
C201
C202
R203
473 102
2K
R301
CON2-17 1K
THV-EA
R308
CON2-18 1K
THV-READ
C307
473
5V
C204
D201
103
1N4148
5
+
R208
7
6
10K
-
U102-B
KA324
THV
50K
C203
681
R206
R207
C205
180K-F 330K-F
473
5V
R309
N.U
Q301
C945C-Y
C306 473
R307
INDEX
5V
150K
50K
D305
1N4148
3
+
1
2
-
U102-A
KA324
C207
R209
103
100K
C206
104
R210
5.6K
Q202
C945C-Y
D203
D1NL20U
Q203
C208
C2383
ZD201
D202
R211
2.7V
D1NL20U
1/4W 4.7
C302
R302 103
470K
C301
R303
470
104
C303
Q302
103
C2383
ZD301
D301
2.7V
R304
D1NL20U
1/4W 4.7
24VS
IT201
C210
4
6KV 221
2 ¡
6
D204 D205
5 ¡ 7
1 ¡ 6KV 6KV
IT-01 C209 6KV 221
681
TNR201
5N221K
C212
TNR202
2KV 221
5N431K
24VS
TNR203
5N431K
IT301
D302
4
4KV C304
¡
2
6
3KV 151
5 ¡ 7
1 ¡
R306
IT-01
150KF
C305
D304
1N4148
SCHEMATIC DIAGRAMS
C211
6KV 221
D206
6KV
THV
R212
1/2W 100K
R213
MGR1/2W 100MF
R305
MGR1/2W 50M
THV-sen
D303
1N4148
104
Service Manual
8-15