Sharp LC-20DV20U Service Manual page 58

Lcd color television/ dvd video player
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A
B
8
CD3802
CU123701
L3801
FROM/TO POWER3
7
22uH TSL0808
CP3802
(CP509)
A2501WV2-2P
1
9VSC
2
GND
FROM/TO TUNER/OUT JACK
STANDBY_LED
6
FROM/TO POWER3
(CP510)
CP3803
L3802
A2501WV2-12P
1
5VSC
22uH TSL0808
2
5VSC
3
5VSC
4
GND
5
GND
L3803
6
GND
7
12VSC
22uH TSL0808
8
12VSC
9
GND
5
10
GND
W947
11
NC/ST_BY_H
12
NC
CD3803
CU1C4201
FROM/TO SOUND AMP/HEADPHONE AMP
GND
ACD
4
FROM/TO POWER3
(CP506)
CP3804
A2501WV2-7P
R3801
1
POWER_FAIL
W859
2.2K
2
LCD-H
L3804
3
AT+5V
22uH TSL0808
4
GND
5
VS ON/LCDON
W801
6
LIGHT_CTL
W942
7
POWER_ON_H
CD3804
3
CU173701
FROM/TO POWER3
(CP512)
CP3801
A2501WV2-4P
1
SOUND+B
2
SOUND+B
2
3
SOUND GND
4
SOUND GND
CD3805
CU144706
CAUTION
:SINCE THESE PARTS MARKED BY
CRITICAL FOR SAFETY,USE ONES
1
DESCRIBED IN PARTS LIST ONLY
A
B
H-11
C
B3801
R3814
W5RH3.5X5X1.0
0.047 1/10W+-1%
C3810
R3816
0.047 1/10W+-1%
16V
1000
FM
C3807
R3815
0.1
B
0.047
1/10W+-1%
3.3V CONTROL
IC3801
AL1010
C3808
8.9
8.9
VIN
CS
R3809
D3801
0.047 B
4.5
8.8
V5/PWON
EXT
1.2
22K
1SS133
0
Vref/SS
GND
1.2
1.2
CC
FB
C3804
0.001
B
R3805
4.7K
AT+5V
W858
W845
ARE
ATTENTION
:LES PIECES REPAREES PAR UN
ETANT
DANGEREUSES AN POINT DE VUE SECURITE
N'UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C
D
E
POWER SCHEMATIC DIAGRAM
(AV PCB)
L3807
L3806
8.8
3.8
GATE
DRAIN
10uH
15uH
8.8
REGULATOR IC
3.8
SBPSC
TSL0808
IC3804 PQ070XF01SZH
SOURCE
DRAIN
8.8
3.8
SOURCE
DRAIN
8.8
3.8
SOURCE DRAIN
IN
OUT
SWITCHING
1
2
Q3813 RSS050P03
5.0
3.3
R3818
R3819
1.8K
680
+-1%
+-1%
W842
W804
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
D
E
F
G
D3811
EC31QS04
C3835
0.22 MMTS
C3836
0.22 MMTS
5.0
4.2
0
0
0
17.8
33.7
14
13
12
11
10
9
8
CVCC
COSC
NC
NC
NC
CP3
CP3
CP1
CP1
GND
CP2
CP2
CREG
COUT
1
2
3
4
5
6
7
9.4
5.1
0
17.0
9.5
30.9
30.6
C3829
C3832
0.22 MMTS
0.22 MMTS
C3830
C3833
0.22 MMTS
0.22 MMTS
GND
V_ADJ
3
4
0
1.2
L3809
W807
6.8uH
RCH8011NP-6R8L
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
F
G
H
FROM/TO POWER3
TR508
(CP508)
CP3808
W5T29X7.5X19
A2001WV2-7P
8
DTV UNREG+5V
1
DTV UNREG+5V
2
DTV UNREG+4V
3
4
DTV UNREG+4V
5
GND
D3812
6
GND
EC31QS04
7
GND
CD3806
CU273702
FROM/TO TUNER
7
GND
P.CON+5V
UNREG+5V
UNREG+4V
P.CON+32V
FROM/TO AV JACK2
P.CON+5V
GND
FROM/TO TUNER/OUT JACK
P.CON+9V
6
P.CON+5V
AT+5V
AT+3.3V
GND
FROM/TO STEREO
D3804
P.CON+8V
1H3-E
P.CON+5V
AT+5V
GND
5
FROM/TO AV JACK
GND
FROM/TO AV SWITCH2
AT+5V
AT+3.3V
P.CON+9V
P.CON+5V
GND
4
FROM/TO TUNER/OUT JACK
PSU_ACD/P.FAIL
PSU_5VD/DSR/LIGHT_CTL
VS_ON/LCDON
RLY_ON/LCD-H
POWER_ON-H
CD3807
CU2B5501
FROM/TO REGULATOR
CP3807
(CP3201)
A2001WV2-11P
P.CON+12V
P.CON+12V
1
P.CON+9V
3
P.CON+9V
2
P.CON+5V
3
AT+3.3V
AT+3.3V
4
P.CON+3.8V
5
P.CON+3.8V
P.CON+3.8V
6
GND
GND
7
GND
8
GND
9
P.CON+5V
10
AT+5V
AT+5V
11
FROM/TO SOUND AMP/HEADPHONE AMP
2
AT+5V
GND
SOUND+B
SOUND_GND
1
PCBD20
CMF090
H
H-12

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