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8.3. CAM Tuner
I501
DTVS205EH201A
22
GND
23
1
GND
NC
24
2
GND
NC
25
3
GND
NC
26
4
GND
NC
27
5
GND
NC
28
6
GND
NC
RFAGC1
29
7
GND
RF_AGC
8
NC
9
NC/VT
IF+
10
IF(+)
IF-
11
IF(-)
IFAGC
12
IF_AGC
IF_TP
13
IF_TP
SCLK
14
SCL
SDAT
15
SDA
16
GND
CAM_Tuner-5V
17
TU 5V
18
NC
Tuner-AFT
19
AFT
SIF_OUT
20
SIF OUT
ATV-CVBS
21
CVBS OUT
ViewSonic Corporation
30VTU
RFAGC1
3
30VTU
IF+
3
C159
+
IF-
3
IFAGC
3
R502
NC
1u/50V
SCLK
3
SDAT
3
R501
100K
TUNER-SAR2
TUNER-SAR2 6
C501
R503
100nF
100K
Close to Tuner
Tuner-5V
C510
R511
NC
0R
ATV_CVBS
Q501
1
NC
L501
R588
0
0R
R513
C512
1K 0603
NC
61
N1930w-2M
Confidential - Do Not Copy
+5V_General
L504
NC
2,3,8,10,15
+5V_General
5VIF
L502
2
5VIF
2
Close to Tuner
Tuner-5V
Tuner-5V
C161
10u/10v
R504
47K
R505
10R 0603
C561
C506
NC
10nF 0603
R591 100R
SIF_Q-B
Q502
1
MMBT3904
0/NC
R506
R587
SIF_Q-E
10R 0603
R586
2K2/NC
R508
R509
47K
820R 0603
Close to Mstar IC
R512
C511
CVBS+
62R
100nF
TV_IN+
C513
R514
NC
NC
R515
C514
47R
100nF
TV_IN-
Tuner-5V
Tuner-5V
600R/1.5A 0805
C570
C502
C503
C504
+
+
NC
100u/16V
100nF
1nF
C505
100nF
Close to Mstar IC
R507
C507
SIF
47R
100nF
SIF_IN+
SIF_IN+
C508
22pF
R510
C509
47R
100nF
SIF_IN-
SIF_IN-
TV_IN+
6
TV_IN-
6
6
6
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