37’’ LCD TV RCA L37WD23
35
9. Schematic Diagram
9.1 Main Board
C4L1
NC
C711
0.1uF
SIF
BCLK
8,14
VCC5_0_T1
C725
0.0015uF
R722
2K 1/10W
TU_FRAME 3
IF_AGC
TU_SDA
R716
NC
TP701
1
I2C0CLK
C735
0.001uF
TU_SCK
R714
10K 1/10W
C708
0.001uF
L711 0.33uH
VCC5_0
U702
UPC3218GV-E1-A
1
2
3
4
5
6
7
8
Vcc
IN1
IN2
VAGC
GND
OUT2
OUT1
GND
VCC5_0
TU_VALID
C728
47pF
R704
47 1/10W
OREN_RST
3
R709
10K 1/10W
X701
25MHz
R701
100 1/10W
I2C0DATA
TU_SDA
TU_SCK
R707
47 1/10W
L710 0.33uH
TU_DATA
C714
NC
C706
0.1uF
R717
2K 1/10W
R715
3.9K 1/10W
FB705
600OHM
1
2
L707
1.8uH
R710
47 1/10W
VCC3V3_DM 16,17
C705
0.1uF
C702
56pF
VCC3V3_DM
TU_DATA 14
C736
0.001uF
R706
47 1/10W
C716
0.001uF
R703
47 1/10W
FB703
600OHM
1
2
TU_SDATA 3
LRCLK
VCC5_0
VCC5_0_T2
R719
1M 1/10W
* Do notinstall.
C701
0.01uF
TU_SDATA
C715
0.1uF
I2C0CLK
6,12
C737
0.1uF
C718
0.01uF
+
C731
470uF/16V
L701
0.22uH
TP700
1
C722
22pF
R713
2K 1/10W
VCC3V3_DM
C720
0.01uF
C704
0.01uF
VCC3V3_DM
R720
68 1/10W
+
C732
470uF/16V
C710
0.01uF
LRCLK 8,14
C719
0.01uF
R725
10K 1/10W
TU_SCLK 3
C727
47pF
C726
560pF
IF_AGC
C703
47pF
FB701
600OHM
I2C0DATA
6,12
R708
47K 1/10W
TV1_CVBS 9
C721
0.01uF
IF
Filter
SF701
EMI FILTER
1
2
3
4
5
INPUT
INPUT
GN
D
OUTPUT
OUTPUT
VCC5_0
TU_VALID 3
BCLK
VCC3V3_DM
R705
47 1/10W
TU_SCLK
OREN
Demodulator
U701A
CAS-220/CS
97
96
94
93
36
39
40
41
43
44
48
49
29
28
4
10
14
21
25
27
31
38
42
47
32
8
2
34
24
26
50
51
52
54
56
57
66
65
64
63
11
12
89
90
100
1
58
59
20
19
16
18
13
61
80
79
71
72
67
68
AIN1_P
AIN1_N
AIN2_P
AIN2_N
D_OUT0
D_OUT1
D_OUT2
D_OUT3
D_OUT4
D_OUT5
D_OUT6
D_OUT7
D_VALID
D_CLK
D_IN0
D_IN1
D_IN2
D_IN3
D_IN4
D_IN5
D_IN6
D_IN7
D_IN8
D_IN9
D_FAIL
SCAN_MODE
SCAN_EN
D_SOP
STAT0
STAT1
STAT2
STAT3
STAT4
STAT5
STAT6
STAT7
AU_CLK
AU_SD
AU_MCLK
AU_WS
IF_AGC
RF_AGC
AIN_OOB_P
AIN_OOB_N
PARAM0
PARAM1
PARAM2
PARAM3
SDA_I2C
SCL_I2C
TU_SDA
TU_SCL
I2C_ADDR
RST
XTI
XTO
LO_OUTP
LO_OUTN
CRX
DRX
Tuner / Demodulator
C734
0.1uF
+
C733
470uF/16V
L706
CHIP INDUCTOR 1.0uH +-10%
ANT IN
TU701
4
5 6
11 12
1
9
7
2
8
10
3
13
14
15
16
AS
SD
A
SC
L
FM
-I
F
SI
F
/A
S
N.
C
A
F
out
IF
o
ut
AG
C
-in
t
+5
V
V
ID
E
O out
+5
V
TH1
TH2
TH3
TH4
C717
0.1uF
FB704
600OHM
1
2
R723
68 1/10W
FB702
600OHM
1
2
+
C724
10uF/16V
Q701
BFR93A
R712
47 1/10W
C729
82pF
C713
22pF
SIF
C709
0.01uF
C723
22pF
R718
680 1/10W
TU_FRAME
C707
0.1uF
VCC5_0 17
R702
100 1/10W
C712
22pF
C730
22pF
FB706
600OHM
E
02-Tuner and Demodulator
Custom
2
20
Wednesday , February 07, 2007
T2300-F-X-X-1-070208
Title
Size
Document Number
Rev
Date:
Sheet
of
R711
47 1/10W
R721
100 1/10W
Summary of Contents for L37WD23
Page 19: ...37 LCD TV RCA L37WD23 19 4 Remove the shielding ...
Page 21: ...37 LCD TV RCA L37WD23 21 7 Remove the bezel ...
Page 26: ...37 LCD TV RCA L37WD23 26 6 PCB Layout 6 1 Main Board ...
Page 27: ...37 LCD TV RCA L37WD23 27 ...
Page 28: ...37 LCD TV RCA L37WD23 28 6 2 Power Board ...
Page 29: ...37 LCD TV RCA L37WD23 29 ...
Page 30: ...37 LCD TV RCA L37WD23 30 6 3 IR Board ...
Page 31: ...37 LCD TV RCA L37WD23 31 6 4 Connector Board 6 5 Key Board ...
Page 34: ...37 LCD TV RCA L37WD23 34 8 Block Diagram ...