Xerox Phaser 3120 - Power Supply and Other PBA Schematics

8-15
SCHEMATIC DIAGRAMS
Service Manual
8.3 HVPS Circuit Diagram (1/2)
R305
MGR1/2W 50M
5V
Q201
A708-Y
4
R204
47K
D202
D1NL20U
TNR201
5N221K
THV-PWM
¡
C210
6KV 221
R205
22K
IT301
Q302
C2383
6
IT201
IT-01
C303
103
7
THV-EA
¡
D206
6KV
R304
1/4W 4.7
ZD301
2.7V
C304
3KV 151
1
¡
D205
6KV
R212
1/2W 100K
5
Q301
C945C-Y
¡
C206
104
R209
100K
D302
4KV
C204
103
R306
150KF
2
D303
1N4148
R206
180K-F
CON2-17
7
R207
330K-F
THV
THV
50K
R307
150K
THV-sen
R213
MGR1/2W 100MF
4
THV-READ
CON2-18
6
C302
103
IT-01
1
D301
D1NL20U
R303
470
Q202
C945C-Y
C201
473
5V
INDEX
50K
C307
473
¡
C202
102
D305
1N4148
24VS
5V
C212
2KV 221
D201
1N4148
C306
473
TNR203
5N431K
ZD201
2.7V
THV-sen
R208
10K
R201
430
TNR202
5N431K
R211
1/4W 4.7
R210
5.6K
R302
470K
5
C205
473
+
-
U102-A
KA324
3
2
1
+
-
U102-B
KA324
5
6
7
4
11
C305
104
C208
681
2
R202
100
C211
6KV 221
D203
D1NL20U
D204
6KV
D304
1N4148
CON2-16
C203
681
R301
1K
C207
103
24VS
C301
104
R309
N.U
R308
1K
R203
2K
¡
5V
C209
6KV 221
Q203
C2383