Samsung SF-530 Service Manual page 138

SCHEMATIC DIAGRAMS
4-12 HVPS Circuit Diagram (1/2)
5V
R411
R422
2.2K
5.6K
MHV-PWM
3 4
CN1-#6
U2-B
7407
5V
R501
R503
5.6K
100
BIAS-PWM
1 2
R502
CN1-#7
U2-A 2.2K
7407
CN1
GIL-S-9P-S2T2-EF
1 24V
A-GND
2
THV-PWM
3
THV-EA
4
THV-READ
5
MHV-PWM
6
7 BIAS-PWM
5V
8
D-GND
9
Repair Manual
4-12
18V
R401
100
R405
220KF
R403
R404
110KF
33K
Q401
A708-Y
D404
R402
1N4148
56KF
R412
2K C408
104
C401
331
R406
VR401 2.2KF
50K
18V
R508
86.6KF
Q501
A708-Y
R507
27K
R505
100KF R506
C501
86.6KF
104
R504
C502
2K
R509
222
12KF
VR501
50K
24VS
R3
Q1
100
B1151-Y
R4
1W 1K
R1
Q2
R2
5.6K
C1008-Y
1K
R407
C402 24VS
103 240K
T401
KAB-006
1
7
12
Q402
+
14
D526-Y 5 6
13
2
-
R408
U1-D
47K
KA324
4
R409
430
C403
D403
R410
333
1N4148
1W 3
24VS
1
R510
C503
47K
104
Q502
5
D526-Y
2
9
-
8
4
10
+
R512
R511
U1-C
430
47K
KA324
R513
C504
D501 1W 3
333
1N4148
24VS U3
KA7818
IN OUT
+
GND
C1
C2
104
35V 47uF
104
D401
C404
4KV
3KV 471
R413
MGR1/2W 6MF
C406
C405 D402
3KV 471
2KV 680
4KV
R414
MGR1/2W 6MF
ZD401
1W 130V
T501
D502
R514
4KV
T1167
MGR1/2W 15MF
7
6
C506
3KV 471
C505
2KV 680
R515
MGR1/2W 6MF
R520
MGR1/2W 9MF
18V
DONGYANG INSTRUMENTS
C3
DESIGNED CHECKED APPROVED
REF. NO
J.S.YOUN
R426
MGR1/2W 100KF
MHV
R416
MGR1/2W 15MF
OPC
R417
MGR1/2W 15MF
R516
MGR1/2W 50K
SUPPLY
ZD501
1W 200V
DEV
R519
MGR1/2W 50K
R517
MGR1/2W 6MF
R518
MGR1/2W 9MF
APOLLO2 (HVPS)
TITLE
DRW. NO
REV.
2.0
SIZE A4
1 OF 2
Samsung Electronics