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42
8.2 Power Board
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1'ST
2'nd
FLYBACK
EMI FILTER
PWM IC CIRCUIT
VOLTAGE FB
5V & 13.8V OUTPUT
INVERTER PWM IC CIRCUIT
VOLTAGE CLAMP CIRCUIT
POWER STAGE & DRIVER
PROTECTION CIRCUIT
T1
CY3
Y1
102
D101
DO41
PR1007
D102
DO41
1N4007
R110
.39R
2W
1
2
PC1-A
1010B
DIP04
3
4
PC1-B
1010B
DIP04
C2
1KV/DIP
102
R201
100R
1206
R202
100R
1206
R204
10K
0805
+ C102
22uF/25V
5x11
+
C202
470uF/25V
10x16
+
C203
470uF/25V
10x16
R102
0
1206
C101
1KV/DIP
102K
R101
100K
2W
R203
240
0805
R205
1K
0805
1%
R206
10.2K
0805
1%
L201
JUMPER
C207
0805
104/16V
R207
10K
0805
1%
C201
0805
102/50V
C104
0805
102
C103
0805
104
1 D/ST
2
NC
3 C/OCP
4
VCC
5 GND
6
FB
7
PM/SS/LATCH
U1
TO220-7P
STRW6200
1
2
3
U201
TO92
TL431
+ C1
100uF/450V
18x36
C105
0805
103
J5
0.6x12mm
jumper
CY1
Y2
102
CY2
Y2
102
RX2
330K
0805
RX1
330K
0805
CX1
180X085_150
0.33uF
1
2
F1
T3.15A / 250V
MST
VAR1
V14K275-5
14D
TH1
5R/4A
10D
RX3
330K
0805
N
L
FG
AC1
R211
100R
1206
R212
100R
1206
D211
TO-220AB
STPR
C212
470uF/25V
10x16
+
C213
470uF/25V
10x16
C211
0805
102/100V
L203
Jumper
R213
2.4K
1206
1
OV
2 LI
3 COMP
4 FT
5 FSET
6
BOSC
7 DBRT
8 EN
9
VIN
10
BT
11
TG
12
SW
13
VCC
14
BG
15
GND
16
AGND
U301
SO16
MP1008
R313
300K
0805
C301
0805
272
R301
47K
0805
R302
3.3K
0805
R303
100K
0805
R306
200K
0805
1
2
3
Q301
SOT23
3904
C308
0805
104
R305
560K
0805
R312
30K
1206
C303
0805
104
C304
0805
473
C305
0805
104
R311
10K
0805
R310
1K
1/8W
C307
0805
102
R308
100K
0805
1
2
3
Q302
SOT23
3904
R309
10K
1/8W
R307
100K
0805
D305
SOT23
BAV70
D304
SOT23
BAV70
D301
SOD123
1N4148
R316
100K
0805
R314
560K
0805
1
2
3
Q303
SOT23
3904
R320
100K
0805
1
2
3
Q304
SOT23
2N7002
C309
0805
105
R315
30K
0603
R317
10K
1206
D302
SOT23
BAV70
R321
100K
0805
R323
20K
1/8W
R324
20K
0805
R322
20K
0805
R325
20K
0805
C314
3KV/DIP
8PF
C318
0805
682
R332
20K
0805
R336
1K
0805
1
2
CN201
2P
1
2
3
Q307
2N7002
SOT23
R327
1K
0805
1%
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
CN5
2.54m
RGA
0
0805
1%
RG1
0
0.6x10mm
D303
SOT23
BAV70
1
3
6
5
9
7
12
5
T301-E
EEL22
10P
6
7
8
4
1
2
C315
3KV/DIP
8PF
C319
0805
682
R333
20K
0805
R337
1K
0805
1
2
CN202
2P
C316
3KV/DIP
8PF
C320
0805
682
R334
20K
0805
R338
1K
1206
1
2
CN203
2P
C317
3KV/DIP
8PF
C321
0805
682
R335
20K
0805
R339
1K
0805
1
2
CN204
2P
R104
82K
0805
3
R302A
43K
0805
1
2
F201
3.15A
MST
J3
jumper
0.6x7mm
D201
DO-201
SB560
+
C302A
10uF/25V
5x11
AOL+
AOL-
AOR+
AOR-
SHUTDOWN
MUTE
VOL_ADJ
ADU_DET
+
C215
470uF/25V
10x16
C318A
0805
NI
C319A
0805
NI
C320A
0805
NI
C321A
0805
NI
1
2
3
Q305
SOT23
3904
R328
2K
0805
1
2
3 Q306
SOT23
3906
R330
10
1/8W
R329
10
0805
C311
0805
105
+
C310A
470uF/25V
10x16
C312
0805
105
Q308N
AP9575
TO-252
Q308P
TO-252
AP9977
8
10
11
1
2
3
4
LF1
ET20-4P
EMI
D1
DO41
1N4007
D2
DO41
1N4007
D3
DO41
1N4007
D4
DO41
1N4007
FG
D1.8
R214
2.4K
1206
C306
0603
105
C323
0805
NI
C322
0805
NI
+5V/1.5A
GND2-1
GND1
GND1
GND1
GND1
GND2-1
GND-FG
+13.8V
ON/OFF
BL_ADJ
LV1
LV2
LV3
LV4
LI
LI1
LI3
LI2
LI4
LV1
LI1
IC_VERF
IC_VERF
+13.8V
LI2
LI4
LI
GND2-S
GND2-1
GND2-1
GND2-S
GND2-S
GND2-S
GND2-S
GND2-S
GND2-1
GND2-1
GND2-1
GND1
+5V/1.5A
ON/OFF
LV2
LI2
GND2-S
LV3
LI3
GND2-S
LV4
LI4
GND2-S
GND2-1
BL_ADJ
GND2-1
GND2-1
GND-FG
GND2-1
+13.8V/0.7A
+5V/1.5A
+13.8V/0.7A
AOL+
AOR+
SHUTDOWN
VOL_ADJ
+5V/1.5A
ADU_DET
GND2-1
AOL-
AOR-
MUTE
GND2-1
Summary of Contents for VS11422
Page 6: ...6 2 Specification ...
Page 13: ...13 Block Diagram ...
Page 19: ...19 Application Block Diagram ...
Page 31: ...31 For analog a Double click appear as follow Figs b Click ...
Page 33: ...33 6 Troubleshooting Flow Chart ...
Page 45: ...45 9 PCB Layout Diagrams 9 1 Main Board ...
Page 46: ...46 ...
Page 47: ...47 9 2 Power Board ...
Page 48: ...48 ...
Page 49: ...49 9 3 Key Board ...
Page 50: ...50 10 Exploded Diagram and Spare Parts List 10 1 EPL ...