Haier L42A8A-A1 Service Manual page 18

1
D
5V-IF
C
L81
FB
CA68 +
C226
10UF/16V 33V_2
L85
0.1uF 33V_1
C232
FB
0.1uF
U26
AMS1117-5
+8V 4
tab/out
3 2
in out
C249
0.1uF
R266
NC
R267
0
B
5V-OUT
Q27
R342
TV 3904
100
R343
1K
A
1
2
+12V
R233
CA67 +
150
47UF/16V
U22
0
GND
13
GND
12
GND
TUNER_IF
R250
IF-AGC
12K
D64
R251
IN4148
SDA5
100
SCL5
100
R252
CA71
+ CA70 +
C230 C233
10UF/50V
47pF 47pF
5V-IF
L87
5V-IF
R319 10uH
R380
C261
+ CA76
10
1K
0.1u
100uF
C257 Q40
SIFPOUT 3904
0.01u
R318
0
TV-SIFP
R381
1K
C247 R379
22P 820
C291
0.1u
SCART1_VOUT
2
3 4
5V-IF
R236
4.7K
R234 R235 L80
C219
4.7K 220
0.01uF 0.82uH
Q21
2SC2216
C220
0.01uF
R241 R242 R244 R246
75 1.2K 56 75
U23
D9455N
1N4148
D63 1
IN OUT2
C229 D65 1N4148 2
ING OUT1
10nF
R255 R273
4.7K
NC
U25
C235 D6216N
0.01uH
1
IN OUT2
D66 2
ING OUT1
1N4148
R256 L83
2.2K 5V-IF NC/1uH
R277
6.8K
R276
6.8K
Q24
3904
R274
680K
3 4
5
R237 R238
4.7K 4.7K
D62
1N4148
Q22 R243
10K
3904
R245
NC
C221
10nF
C222
Y2
1n5F
R247 4MHZ
330
C225
220nF
5
TV
4
5
4
C241 10nF
R275
R263
22K NC
1nF
R278
220K
Title
Size
B
Date:
File:
5
6
5V-IF
R240
12K
IF-AGC
R249
C224
100K
0.1uF
5V-OUT 5V-IF
L82
FB
+ CA69
R253
100
U24
Q23
3904
R257
TV1-V
75
100
R259
SCL5
R260 100 SDA5
TV-MONO
SIFPOUT R261 TV-SIFP
NC
TV-SIFM
R264
220 R265
100
Number Revision
6-Jan-2007 Sheet of
E:\ 陈龙 \LCD\MSTAR\MST9X88\ 设计文件 \PCB\PCB-bak\PY12038-----Q(V1.0).DDB
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6
D
C
B
A