Norcent LT2722
63
R175
75 1/16W
AV1
+
C182
2.2uF/16V
0
AV2
L109
600 OHM
C178
0.1uF
R180
100 1/16W
+
C191
10uF/16V
VIDEO_SL2
8
C162
0.1uF/16V
R143
22 2W
L113
600 OHM
R176
220 1/16W
LINE_O_R
10
C165
220pF
R145
22 2W
5VA
Tuner
L105
600 OHM
0
C193
0.0015uF
5VT
SEC_SCL
3,5,6,8,10
R146
22 2W
+
C195
10uF/16V
Q117
PMBS3904
3
2
1
+
C161
100uF/16V
C10A
0.1uF
VIDEO_SL1
+
C173
2.2uF/16V
+
C154
10uF/16V
0
EMI
5VA
R179
100 1/16W
+
C180
NC
VIDEO_SL1
8
U104
AIC1117E50A
3
2
1
VI
VO
GND
1.0
02. Tuner & MSP3455G & Video SW
A4
2
16
Thursday, October 20, 2005
Title
Size
Document Number
Rev
Date:
Sheet
of
SOURCE_R2
11
U106
AIC1117E50A
3
2
1
VI
VO
GND
C152
47pF
SOURCE_R1
11
+
C199
100uF/16V
+
C176
3.3uF/16V
C100
0.001uF
C175
0.01uF
C187
330pF
AV1
Tuner
C168
470pF
1
R165
75 1/16W
T100
TUNER
1
2
3
11
12
13
14
18
15
16
17
4
5
6
9
10
NC/AGC
NC/Moni
tor
VCC
SIF
CVBS
VCC-IF
AF
O
/P
CHASSIS
CHASSIS
CHASSIS
CHASSIS
SCL
SDA
AS
NC
NC
TUNER
U100
NJM2244
1
3
5
6
7
8
2
4
VIN1
VIN2
VIN3
V+
VOUT
GND
SW1
SW2
C196
560pF
L112
600 OHM
R182
NC
C185
330pF
T10
NC
+
C181
2.2uF/16V
C186
330pF
VD_RST
8,10
R169
33 1/16W
C164
0.0015uF
SRSIN_L
5
+
C184
2.2uF/16V
C10C
0.1uF
L111
600 OHM
C155
0.1uF
R178
100 1/16W
C170
47pF
+
C156
100uF/16V
R144
22 2W
R172
33 1/16W
SOURCE_L2
11
+
C183
2.2uF/16V
U105
MSP3425G
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
SCL
SDA
I2S_CL
I2S_WS
I2S_DA_OUT
I2S_DA_IN1
ADR_DA
ADR_WS
ADR_CL
DVSUP
DVSS
I2S_DA_IN2
NC
NC
NC
RESETQ
NC
NC
VREF
2
DACM_R
DACM_L
NC
NC
NC
NC
NC
VREF
1
SC1_O
UT_R
SC1_O
UT_L
NC
AHVSUP
CAPL_M
AHVSS
AGNDC
NC
NC
NC
NC
NC
ASG
SC2_IN_L
SC2_IN_R
ASG
SC1_IN_L
SC1_IN_R
VREFTOP
MON_IN
AVSS
AVSUP
ANA_IN-
NC
T
EST
EN
XT
AL_IN
XT
AL_O
UT
TP
NC
NC
NC
D_CTR_I/OUT1
D_CTR_I/OUT0
ADR_SEL
ST
ANDBYQ
NC
C169
0.0015uF
R162
75 1/16W
+
C10B
100uF/16V
VIDEO_SL2
R128
nc
R171
33 1/16W
SOURCE_L1
11
+
C197
100uF/16V
+
C172
2.2uF/16V
AV2
C174
0.01uF
1
12V
R167
75 1/16W
R173
33 1/16W
SEC_SDA
3,5,6,8,10
LINE_O_L
10
1
C137
3.3pF
C177
0.1uF
Y
3
L107
600 OHM
R181
100 1/16W
R177
100 1/16W
C198
0.1uF
5VA
C171 56pF
+
C153
10uF/16V
C157
3.3pF
C188
330pF
R183
0 1/16W
5VT
+
C158
10uF/16V
+
C167
100uF/16V
8V
+
C179
10uF/16V
C160 56pF
5V
Tuner_out
+
C194
10uF/16V
+
C151
10uF/16V
X101
18.432MHz
C192
470pF
C189
0.1uF
Tuner_out
Vidio
AV_2
10
L108
600 OHM
+
C163
10uF/16V
SRSIN_R
5
L106
600 OHM
C166
470pF
5VT
AV_1
10
8V
L110
600 OHM
Summary of Contents for LT2722
Page 20: ...Norcent LT2722 19 Remove panel Remove the four screws...
Page 21: ...Norcent LT2722 20 Remove the four screws The end...
Page 52: ...Norcent LT2722 51 8 PCB Layout 8 1 Main Board...
Page 53: ...Norcent LT2722 52...
Page 54: ...Norcent LT2722 53...
Page 55: ...Norcent LT2722 54...
Page 56: ...Norcent LT2722 55 8 2 Power Board...
Page 57: ...Norcent LT2722 56...
Page 58: ...Norcent LT2722 57 8 3 Key IR Board...
Page 59: ...Norcent LT2722 58 8 4 Earphone Board...
Page 61: ...Norcent LT2722 60 9 2 Power Board...
