![background image](http://html.mh-extra.com/html/sharp/lc-20dv20u/lc-20dv20u_service-manual_373836060.webp)
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
2
1
3
4
5
6
7
8
2
1
3
4
5
6
7
8
CP5802
TKC-W20P-U1
1
10
11
12
13
14
15
16
17
18
19
2
20
3
4
5
6
7
8
9
CP5801
TKC-W20P-U1
1
10
11
12
13
14
15
16
17
18
19
2
20
3
4
5
6
7
8
9
TU5801
TUMUDTR-V110V
DIGITAL/ANALOG TUNER W/NTSC_MPX
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
BT002
R6P(AR)XICI
BT001
R6P(AR)XICI
TM101
ETR0088-010021
CD3801
09119904
IC5801
TC7W66FU
SW
1
2
3
4
5
6
7
8
: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
L5804
22uH
L5803
100uH
0305
L5801
22uH
0305
L5802
22uH
W917
W915
W914
W901
W902
W903
W898
W899
W900
W851
C5824
1000
6.3V
YK
C5813
10
16V
V-S
C5806
220
6.3V
YK
C5805
0.1
B
C5845
47P
CH
C5809
0.47
B
C5808
0.1
B
C5814
0.0022 B
C5812
0.01
B
C5810
0.1
B
C5815
0.1 B
C5802
0.1
B
C5807
0.01
B
C5811
33P
CH
C5844
47P
CH
C5836
47P CH
C5838
47P CH
C5839
47P CH
C5841
47P CH
C5843
47P CH
C5837
47P CH
C5826
47P CH
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
R5820
100K
R5806
100K
R5807
8.2K
R5808
8.2K
R5809
4.7K
R5810
1K
R5812
390K
R5811
4.7K
R5813
75
R5814
2.7K
R5815
12K
R5816
12K
R5817
2.2K
Q5803
2SC3841-T1B_T63
IF AMP
Q5804
2SC3841-T1B_T63
IF AMP
Q5805
2SC3841-T1B_T63
IF AMP
B5803
BLM18PG181SN1D
B5802
BLM18PG181SN1D
B5801
BLM18PG181SN1D
Q5802
KRC103SRTK
SW
Q5801
KRA101SRTK
SW
CAUTION: DIGITAL TRANSISTOR
CAUTION: DIGITAL TRANSISTOR
GND
P.CON+5V
AFT
P.CON+32V
DTUNER_SPDIF
UNREG+5V
AFT_1
SIF
UNREG+4V
AFT_2
IF_OUT_2
IF_OUT_1
IF_AGC
P.CON+32V
P.CON+5V
UNREG+5V
UNREG+4V
P.CON+5V
RF_SW
DTUNER_Y
DTUNER_PB
TUNER_VIDEO
DTUNER_Y
DTUNER_PB
DTUNER_PR
DTUNER_PR
TU_I2C_CLK
AUDIO_MUTE_L
DTUNER_RESET
TU_I2C_DATA
DTUNER_SD_H
DTUNER_RX
DTUNER_TX
AUDIO_MUTE_L
DTUNER_POWER
DTUNER_SD_H
AFT_1
AFT_2
DTUNER_RESET
DTUNER_POWER
I2SSD0_OUTA
DTUNER_RX
I2SWS_OUTA
DTUNER_TX
I2SSCLK_OUTA
I2SSD0_IN
DTUNER_SPDIF
I2SWS_IN
I2SSCLK_IN
SIF
I2SSD0_OUTA
I2SWS_OUTA
I2SSCLK_OUTA
I2SSD0_IN
I2SWS_IN
I2SSCLK_IN
TU_I2C_DATA
TU_I2C_CLK
RF_SW
IF_AGC
IF_OUT_1
IF_OUT_2
H-15
H-16
(AV PCB)
TUNER SCHEMATIC DIAGRAM
0
0.3
3.3
3.3
4.9
30.7
0
1.5
0
5.0
0
4.6
2.0
1.4
1.9
0
0
0
4.9
0
+5V
GND
V_OUT
AGC_OUT
AFT
SCL
SDA
AGC
TU
+30V
OOB
GND
+5V
+5V
SIF
IF SW
IF OUT
IF AGC
IF_OUT 1
IF_OUT 2
NC
NC
11
NC
PCBD20
CMF090
1.87
1.86
0
0
1.87
4.85
5.01
5.01
0
0
FROM/TO STEREO
FROM/TO POWER
FROM/TO SHIELD DIGITAL
ACCESSORY
0.4
0.5
0.6
0
0
2.5
1.8
3.4
0
0
5.0
5.0
0
GND
IF OUT2
IF OUT1
GND
RF_SW
IF AGC
TU I2C DATA
TU I2C CLK
I2SSDO_IN
I2SWS_IN
I2SSCLK_IN
I2SWS_OUTA
I2SSDO_OUTA
I2SSCLK_OUTA
SPDIF OUT
RX (X240)
TX (X240)
DTV_RESET
DTV POWER
UNREG+5V
UNREG+5V
UNREG+4V
Y OUT
U OUT
V OUT
GND
GND
SD-H
CVBS OUT
AUDIO MUTE-L
GND
GND
GND
GND
REG +5V
UNREG+4V
UNREG+4V
AFT_1
AFT_2
NC
FROM/TO TUNER/OUT JACK
FROM/TO AV SWITCH2
(CP2403)
(CP2404)
FROM/TO AV OUT