ViewSonic N1900w-1E Service Manual page 53

8.6. AUDIO & VIDEO Interface
5VD
P6,9 5VD
+5VT
P6 +5VT
8VD
P6,9 8VD
P501
RCA JACK
1
5
L501
CVBS_AV 2
C503
330P
3
AUDIO_INL
AV1-AudioR
6
4
AUDIO_INR
AV1-AudioL
21
20 CVBS INPUT
CVBS OUT
19
18
C535
17
Blanking I/O
16
Red I/O 47P
15
14
13
12
Green I/O
11
10
9
8 Switch
7 Blue I/O
6 Audio L-Input
5
4
Audio L-Out
3
Audio R-Input
2
Audio R-Out
1
P503
C542 C543
SCART
47P 47P
L509
C556 C557
47uF/16V
0.1U
R535
Q501 10K
MMBT3904
C562
SC_Vout
R537
20K
R536
1K
PC-Audio-IN
AUDIO_JACK
P603 1
2
3
4
5
ViewSonic Corporation
R30 ohm0603 C502
0.1U
CVBS_AV
CVBS_AV P9
C511
R501
75R
NC/330P
L607
R618
AV YUV_ARin P9
220R
1K R619
C635 C636
20K
100P
100P
L608
R620
AV YUV_ALin P9
220R
1K C638
R622
C637
20K
100P 100P
C508
C536 C537 C504 C510 C509
47P/ESD
47P 47P 47P/ESD 47P/ESD 47P/ESD R522
75R
C538
R526 0R
47P
C539 NC SC_Vout
C544 L507
47P 600R/0805
R527 C548
12K 100P
L508
R529
3.3K R530 600R/0805
75R/1% C551
100P
200/2A
5VD
C553
1000P
C558
1000P
100uF/16V
P9
VO_1
L611
220R
R634 8.2K
PCIR
PCIR P9
C651 C652
R635
100P 100P
10K
L612
AGND AGND
220R
R636 8.2K
PCIL
PCIL P9
C653 C654
R637
100P
100P
10K
AGND AGND
AGND
50
N1900w-1E
Confidential - Do Not Copy
C531 0.1U CVBS_SCART
CVBS_SCART P9
C532 0.1U RIN_SCART
RIN_SCART P9
C533 0.1U GIN_SCART
GIN_SCART P9
C534 0.1U BIN_SCART
BIN_SCART P9
R523 R524 R525
75R 75R 75R
R543
100R SC_FSW
SC_FSW P9
R539 SCART_ALin1
SCART_ALin1 P9
1K
C549 R541
100P
20K
R540
SCART_ARin1
SCART_ARin1 P9
C552
1K
100P R542
20K
C639
AUDIO_Lout P9
47uF/16V
R531
1K
C649
AUDIO_Rout P9
47uF/16V
R533
1K
SC_FS
SC_FS P9
Tuner Part
Closely to VCT49xxI
Closely to Tuner
I501 UV1316
+5VT
RF TUNER
C566 R514
NC/2.2U(0805) 6.8K
R538
TAGC
P9 TAGC
C527 0R
0.027U
IFIN_M IF_OUT_Y
P9 IFIN_M
R517
I503 L504 NC
X6966D(SIP5D) 820nH(1206)
IFIN_P IF_OUT_X
P9 IFIN_P
Closely to Tuner C568 C569 Connect to GND when
and VCTI tuner output is
NC/330P(NPO) 220P
single-ended
The Tuner AS Pin's GND
need connect to SAW and
put GND closely to VCTI
Pin103,Pin104
Group layout and put into Tuner area!
L506
10uH(SMT)
C540
C541
I502
0.1U 47uF/16V
1 14
I1 VDD
2 13
R528
O1 I6
3 12
I2 O6
4 11
10K O2 I5
C545 0.1U/0805 C546
5 10
I3 O5
C550
6 9
O3 I4
7 8
VSS O4
1000P
HEF4069UB(SO14)
D501 D502
1N4148_SMD 1N4148_SMD
C554 0.1U/0805
8V--->33V voltage convert circuit
C559
100uF/50V
TP is 2.54mm jumper
+33V
+33V
R516 100R MSDA
MSDA P9
R515 100R MSCL
MSCL P9
+5VT
C529
0.1U C528
470uF/16V
8VD
C547
0.1U/0805 0.1U/0805
D503 D504 D505 D506
1N4148_SMD 1N4148_SMD 1N4148_SMD 1N4148_SMD
0.1U/0805
C555
R532 1K
+33V
+33V
R534
D507
C560 C561
100K
100uF/50V 0.1U/0805
BZV55-C33
closely to Tuner +33V Pin!