Samsung ML-1200 Series Repair Manual page 21

SCHEMATIC DIAGRAMS
HVPS Circuit Diagram (2/2)
5V
R201
10K
THV-PWM
13 12 11
CN1-#3
U2-F
7407
24VS
+
C101
35V 47uF
5V
CN1-#8
18V
1/2W 560
THV-EA
9
CN1-#4
D-GND
THV-READ
CN1-#5
Repair Manual
3-16
18V
R206
100
10
R208
30KF
R205
U2-E Q203
1K
7407 A708-Y
C201
103
R209
R207
110KF
2K
C202
331 510KF
VR201
50K
R3
ZD1 C7
5.6V 104
8
U2-C
7407
24VS
C4
104
3
+
1
R302
R303
2
- 33K
R316 100KF
U1-A
1KF KA324
R317
2KF
C302
R301
102
470K 1N4148
C301
222
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24VS
Q204
D526-Y
D201 U1-B
1N4148 KA324
R213
5
+
2.2K
7
6
-
R210 D202
1N4148
R212
C203
D203 ZD201
470K
472
1N4148 5.6V
R211
1MF
R309 Q301
2.2K
A708-Y
R307
33K
18V
D301
R310
1N4148
2.2K
R308
33K
R311
100KF
Q302
A708-Y
R306
R304
26.1KF
200KF
C303
333
R305
5.1KF
D302
C304
500V 103
VR301
10K
T201
C208
C206
HVT-2A
6KV 471
6KV 471
1 7
D204
6KV
D205
6KV
5 6
2
C205
C207
6KV 101
6KV 471
4
R215
R216
430
BR1/2W 30MJ
R214
1.2K
C204
ZD202
473
7.5V
18V
T301
D304
C307
KAB-006
4KV
3KV 471
1 7
5 6
2
C306 D303 C308
Q303
2KV 680 4KV 3KV 471
D526-Y
4
R314
2.2KF
VR302
5K
C305
333
SAMSUNG ELECTRONICS TITLE
DESIGNED CHECKED APPROVED DRW. NO
REF. NO
JH.CHO
SIZE A4
D206
D207
6KV
6KV
C209
6KV 471
THV
R218
MGR1/2W 100KF
R217
BR1/2W 200MG
R315
BR1/2W 30MJ
SWALLOW-HVPS
REV.
1.0
JC
2 OF 2
DATE 01/01/04
Samsung Electronics