Operating instructions

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_F R AME 3
IF_AGC
TU_SD A
R716
NC
TP701
1
I2C0CLK
C735
0.001uF
TU_SC K
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_RST3
R709 10K 1/10W
X701
25MHz
R701
100 1/10W
I2C0DATA
TU_SD A
TU_SC K
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 600OHM12
TU_SD ATA 3
LRCLK
VCC5_0
VCC5_0_T2
R719 1M 1/10W
* Do notinstall.
C701
0.01uF
TU_SD ATA
C715
0.1uF
I2C0CLK6,12
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_SC LK 3
C727
47pF
C726
560pF
IF_AGC
C703
47pF
FB701 600OHM
I2C0DATA6,12
R708 47K 1/10W
TV1_CVBS 9
C721
0.01uF
IF
Filter
SF701
EMI FILTER
1
2
3
4
5
INPUT
INPUT
GND
OUTPUT
OUTPUT
VCC5_0
TU_VALID 3
BCLK
VCC3V3_DM
R705 47 1/10W
TU_SC LK
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_SD A
TU_SC L
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 SDA SCL FM-IF SIF/AS N.C AF out IF out AGC-int +5V VIDEO out +5V
TH1
TH2
TH3
TH4
C717
0.1uF
FB704 600OHM12
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_F R AME
C707
0.1uF
VCC5_0 17
R702
100 1/10W
C712
22pF
C730
22pF
FB706 600OHM
E
02-Tuner and Demodulator
Custom
220Wednesday , February 07, 2007
T2300-F-X-X-1-070208
Tit le
Size Document Number Rev
Date: Sheet
of
R711 47 1/10W
R721 100 1/10W