Read Sharp LC-20SD4E (serv.man5) Service Manual online
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IC4001
STV0360
OFDM DEMODULATOR 1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
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TU2801
VA1T1ER2087
RCA TYPE/VHF+UHF DIGITAL TUNER
1
10
11
12
13
14
15
16
3
4
5
2
6
7
8
9
:SINCE THESE PARTS MARKED BY
CAUTION
DESCRIBED IN PARTS LIST ONLY
CRITICAL FOR SAFETY,USE ONES
ARE
DANS LA NOMENCLATURE DES PIECES
N’UTILISER QUE CELLS DECRITES
DANGEREUSES AN POINT DE VUE SECURITE
:LES PIECES REPAREES PAR UN
ETANT
ATTENTION
C4003
22
6.3V
V-S
Q2803
KTA1664-Y-RTF/P
VCC SW
C2824
220
6.3V
V-S
C2820
47
6.3V
V-S
C2808
220
6.3V
V-S
C2810
10
50V
V-S
C2822
10
50V
V-S
C2821
47
6.3V
V-S
C2809
220
6.3V
V-S
Q2804
KTC3875S_Y_RTK
SW
R2824
680
R2823
680
R2805
180
R2822
1.2K
R2821
47K
R2820
10K
R2804
2.7K
R2803
47
R2807
2.7K
R2801
47
R2819
680
R4009
47
R4010
5.6K
R4011
5.6K
R4001
510K
R4002
15K
R4008 47
X4001
27MHz
100GT02720
C2817
0.001
B
C2816
0.001
B
C2813
0.001
B
C2811
100P CH
C2812
100P CH
C2825
0.1
B
C2807
0.1
B
C2823
0.1
B
C2818
0.001
B
C2815
0.001
B
C2814
0.001
B
C2802
0.1
B
C2803
0.1
B
C2804
0.1
B
C2801
0.1
B
C2819
2P
CH
C4001
10P CH
C4002 10P CH
C4004
0.01
B
NR4001
4D02WGJ0103TCE
L2801
2.2uH
NLV25
NLV25
L2803
2.2uH
NLV25
NLV25
W809
W808
W804
W813
W815
W814
W812
W811
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
T3V3D
FED[0]
FED[1]
P5V
FEERROR
FEVALID
FECLK
FEOFF
FERESET
FED[2]
FEOFF
FEERROR
FEVALID
FEERROR
FEVALID
FED[3]
FECLK
FED[0]
FED[1]
FED[2]
FED[3]
FED[0]
FED[1]
FED[2]
FED[3]
FED[4]
FED[4]
FED[5]
FED[6]
FED[7]
FESTROUT
FED[5]
FED[6]
FED[7]
FESTROUT
FED[5]
I2CSDA
I2CSCL
I2CSCL
AT+32V
FED[6]
FED[7]
FEVALID
TSCL
FECLK
FESTROUT
FED[0]
TSDA
FED[1]
FED[2]
FED[3]
FED[4]
FED[2]
FED[3]
FED[4]
I2CSDA
FED[5]
FED[6]
FED[6]
I2CSCL
FED[7]
T3V3D
FESTROUT
P3V3
TIAGC2
TSDA
TSCL
TINP
P3V3
AT+32V
P5V
T3V3D
AT+32V
P5V
T3V3D
TINM
GND
T1V8D
T3V3A
T1V8A
T1V8X
TINM
TINP
FERESET
TIAGC2
H-38
PCBDH0
CEF196
CEF196
H-37
OFDM/ TUNER SCHEMATIC DIAGRAM
(DIGITAL PCB)
5.0
5.0
3.3
NC
0.3
NC
NC
NC
NC
NC
DGNDA
DVCCA
VCCA
GNDA
REFM
REFP
VR
PGAVCC33
INM
INP
PGAGND
RESET
VDD18
AGC2
GND1
AGC1
SCLT
SDAT
SCL
SDA
VDD33
VDD33
VDD44
VDD33
STR_OUT
GND2
D7
D6
D5
VDD18
D4
GND3
D3
D2
D0
CLK_OUT
GND4
D/P
VDD18
ERROR
GND5
OP2
OP1
OP0
GND6
AUX_CLK
CCK/HFEC1
HFEC0
CS1
GND7
CS0
ENA27
VDD18
IPO
GND8
TEST
VCCXTAL18
XTAL1
XTAL0
17 TEST
33 D1
48 CIQ/HFEC3
49 CDATA/HFEC2
33 D1
48 CIQ/HFEC3
49 CDATA/HFEC2
64 GNDXTAL
NC
NC
IF-
IF+
SDA
NC
BB
ANT BB
+B2
NC
RF AGC
SCL
+32V
IFAGC
5.0
0.3
0.3
3.3
30.0
0
0
0
5.0
5.0
4.0
0
0
0.7
1.7
1.7
3.4
0
0
0
0
0
1.8
0
0
0
1.8
0.9
0.9
0
10
0
1.8
1.8
0
0
0.8
1.3
3.4
1.7
1.7
0
3.3
1.8
0
0
0
0
3.4
3.4
3.3
3.3
3.4
0
0
0
1.3
1.3
1.8
1.3
0
1.3
1.3
1.3
1.3
3.4
1.7
0
1.5
1.8
0
0
3.4
0
1.7
1.7
NC
3.4
NC
NC
3.4
3.4
NC
NC
NC
NC
FROM/TO POWER I/O
FROM/TO COMMON INTERFACE
FROM/TO ASIC
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