Envision EN7220 Service Manual page 23

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+12V
+
+
C201
C223
C202
150uF/25V
150uF/25V
0.1uF/25V
NO/OFF
R201
R202
30K 
10K 
DIM
C203
1uF/25V
R205
47K 
C205
0.1uF
+
C207
R207
10uF
OPEN
C206
0.1uF
R206
47K 
C208
R204
330pF
10K 
R203
10K 
AOC (Top Victory) Electronics Co., Ltd.
Title
Size
Document Number
B
Date:
Friday, July 25, 2003
Sheet
2
of
Q202
C225
DTA144WKA
1uF/25V
Q201
DTC144WKA
R218
470 
R208
4.7K 1/16W
R210
 
15K 
C209
1uF/25V
C204
0.1uF
U201
TL1451ACNSR
C224
1uF/25V
C210
1uF/25V
R209
4.7K 1/16W
 
R219
470 
R211
15K 
is power GND
Rev
is signal GND
A
2
Q203 SI4431DY-T1
1
8
2
7
L201
3
6
R212
4
5
3.9K 
D201
R214
SR24
3.9K 1/16W
 
Q205
MPS3904
R216
C211
220 1/16W
 
1uF/25V
1
Q207
MPS3906
Q204 SI4431DY-T1
L202
1
8
2
7
3
6
R213
4
5
3.9K 
R215
D202
3.9K 1/16W
 
SR24
Q206
MPS3904
R217
C212
220 1/16W
 
1uF/25V
1
Q208
MPS3906
23
EN7220 Service Manual
R224
R225
R226
D203
2K 
2K 
2K 1/16W
 
RLZ11B
PT201
5
C213
3,4
R220
0.22uF/100V
15K 
2
Q209
Q210
6
2SC5706
2SC5706
1
1
1
POWER X'FMR
R222
12K 
R240
D207
51K 
1N4148
R238
C219
C221
12K 
1uF/25V
0.47uF/63V
R228
R229
R230
R231
D204
2K 
2K 
2K 
2K 
RLZ11B
PT202
5
C214
3,4
R221
0.22uF/100V
15K 
2
Q212
6
Q211
2SC5706
2SC5706
1
1
1
POWER X'FMR
R223
12K 
R241
D208
51K 
1N4148
R239
C222
12K 
0.47uF/63V
C215
22pF/3KV
1
2
3
4
C216
CN202
22pF/3KV
9
R232
1K 
7
D209
1N4148
D205
1N4148
R234
910 1/4W
 
R236
620 
C217
22pF/3KV
1
2
3
C218
4
22pF/3KV
9
CN201
R233
1K 
7
D210
1N4148
D206
1N4148
R235
910 1/4W
 
C220
R237
1uF/25V
620 

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