Sharp LC-20AD5E Service Manual ▷ View online
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
CP2203
A2001WR2-4P
1
2
3
4
SW2203
EVQ21505R
VOL UP
SW2201
EVQ21505R
INPUT SELECT
SW2202
EVQ21505R
VOL DOWN
SW2206
EVQ21505R
CH DOWN
SW2204
EVQ21505R
CH UP
SW2205
EVQ21505R
POWER
SW2207
EVQ21505R
MENU
Vout
B+
GND
OS2201
ROM-V338TAO
1
2
3
G
R
D2201
LTL-1BEFJ-002A
STANDBY/POWER
CP2201
A2001WR2-5P
1
2
3
4
5
C2202
100
6.3V
KA_P
C2201
100P
CH
C2203
0.1
B
C2207
0.1
B
C2209
0.01
B
C2204
0.01
B
R2204
390
R2206
1.5K
R2203
1.2K
R2201
5.6K
R2202
2.2K
R2207
471/4W
R2211
180
R2215
180
R2210
180
R2208
180
R2212
180
R2213
180
R2216
180
R2205
390
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
CD2201
CU255502
CU255502
MAIN PCB
CD2200
CU243701
MAIN PCB
H-38
H-37
OPERATION/REMOCON SCHEMATIC DIAGRAM
(REMOCON PCB)
(OPERATION PCB)
CEF302
REMOCON IN
GND
AT+5V
STANDBY LED
POWER ON LED
(CP4301)
FROM/TO JACK
INPUT
POWER
MENU
VOL DOWN
VOL UP
CH DOWN
INPUT
POWER
POWER
VOL UP
CH DOWN
CH UP
MENU
PROPER37 PROPER32 SHARP
CH UP
CH UP
VOL DOWN
SW2203
SW2204
SW2205
SW2206
SW2201
SW2202
SW2207
INPUT
VOL DOWN
VOL UP
CH DOWN
KEY C
KEY A
KEY B
GND
FROM/TO JACK
(CP4304)
PCB270
PCBDA0
CEF301
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
M
2
1
M3400
FAN MOTOR
CP3400
FAN CONNECTOR
1
2
CP102
RS-232 IN
1
2
3
4
5
6
7
8
9
J4205
HEADPHONE JACK
1
2
3
4
5
6
7
R
L
J4208
PC/DVI AUDIO IN
1
2
3
H1 H2
E
J4201
AUDIO OUT
1
2
3
E
E
J702
VIDEO/S-VIDEO/AUDIO IN
1
10
11
12
2
3
4
5
6
7
8
9
H1
NC
H2
H2
E
E
H1
H1
E
J4200_1
YUV-AUDIO L/R IN
1
2
3
4
5
6
7
8
9
J502
1
2
TU6002
TUNER
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
3
4
5
6
7
8
9
CP5000
CI CONNECTOR
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
43
44
45
46
47
48
49
5
50
51
52
53
54
55
56
57
58
59
6
60
61
62
63
64
65
66
67
68
7
8
9
CP2402
JIGU CONNECTOR
1
2
3
4
5
CP2401
JTAG CONNECTOR
1
10
2
3
4
5
6
7
8
9
14
13
12
11
10
9
8
7
6
4
5
3
2
1
CP501
23
22
21
20
19
2
1
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
CP3801
23
22
21
20
19
2
1
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
CP504
: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
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
THE TIME
THIS INTERCONNECTION DIAGRAM IS THE LATEST AT
NOTE:
CP802
1
2
3
4
5
6
CP101
SUB MICON DATA
1
2
3
4
5
6
LCD PANEL
V2301
4
3
2
1
CP1000
4
3
2
1
CP4304
4
3
2
1
CP2203
5
4
3
2
1
CP2201
5
4
3
2
1
CP4301
Vout
B+
GND
OS2201
1
2
3
CP3601
HDMI CONNECTOR
1
10
11
12
13
14
15
16
17
18
19
2
3
4
5
6
7
8
9
CP4302
D-SUB
1
10
11
12
13
14
15
2
3
4
5
6
7
8
9
CP7201
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
4
5
6
7
8
9
4
3
2
1
CD302
SPEAKER
SP301
SPEAKER
SP302
J4206
DECORDER/PERITEL
1
10
11
12
13
14
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41
42
5
6
7
8
9
H-40
H-39
M_GND
FAN+12V
GND
DCU_NOTRESET
DCU_TRIGGERIN
DCU_TRIGGEROUT
TCK
TMS
TDI
TD0
TRST
GND
GND
GND
RX
TX
AT+5V
NC
AT+3.3V
GND
GND
EEPROM_SDA
EEPROM_SCL
IIC_OFF
BUSY/MODE
RESET
GND
TX
VCC
RX
GND
RS232_TXD
RS232_RXD
NC
NC
NC
NC
NC
NC
R/L
U/D
GND
SELLVDS
GND
GND
VCC+12V
VCC+12V
VCC+12V
VCC+12V
NC
GND
RIN2-
RIN2+
GND
RxCLK -
RxCLK +
GND
RIN3-
RIN3+
GND
GND
NC
D3
D4
D5
D6
D7
A10
A11
A9
A8
A13
A14
VCC
VPP1
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
GND
GND
VCC
VPP2
RESET
GND
/OE
/CE1
/WE
/READY:/IREQ
/IOIS16
/CD1
/CE2
/VS1
/IORD
/IOWR
/WAIT
/INPACK
/CD2
/REG
TS_IN_CLK:A15
TS_IN_VAL:A16
TS_OUT_DATA3:D11
TS_OUT_DATA4:D12
TS_OUT_DATA5:D13
TS_OUT_DATA6:D14
TS_OUT_DATA7:D15
TS_IN_STRT:A17
TS_IN_DATA0:A18
TS_IN_DATA1:A19
TS_IN_DATA2:A20
TS_IN_DATA3:A21
TS_IN_DATA4:A22
TS_IN_DATA5:A23
TS_IN_DATA7:A25
TS_OUT_VAL
TS_OUT_CLK
TS_OUT_STRT
TS_OUT_DATA0:D8
TS_OUT_DATA1:D9
TS_OUT_DATA2:D10
TS_IN_DATA6:A24
VGA-G
VGA-R
GND
RIN0-
RIN0+
RIN1-
RIN1+
GND
GND
GND
GND
DSUB_5V
NC
DGND
CEC
D2+
D0-
CLK+
SDA
GND
POWER
D2-S
D2-
D1+
D1-S
D1-
D0+
D0-S
CLK-S
CLK-
SCL
DET
RESERVED
VGAVS
VGAHS
AGND
VGA-B
DDCC
DDCD
AGND
AGND
DGND
NC
CD7204
CMF112
CEF300
GND
GND
GND
GND
GND
GND
PANEL_POWER_H
LIGHT_POWER_H
LIGHTE_CTL
STAND-BY_H
LCD+B
LCD+B
SYS_POWER_H
SW+12V
SW+12V
GND
GND
GND
SOUND GND
SOUND GND
SOUND+B
SOUND+B
AT+5V
AT+5V
POWER_FAIL
PANEL_POWER_H
LIGHT_POWER_H
LIGHTE_CTL
STAND-BY_H
LCD+B
LCD+B
SYS_POWER_H
SW+12V
SW+12V
GND
GND
GND
SOUND GND
SOUND GND
SOUND+B
SOUND+B
AT+5V
AT+5V
POWER_FAIL
LIGHT_POWER_H
+24V
+24V
+24V
+24V
+24V
N.C(PWM SELECT)
EXT PWM
LIGHT CTL
GND
GND
SP OUT L
SP OUT R
CD2200
KEY C
KEY A
GND
KEY C
KEY A
KEY B
GND
CEF302
CEF301
PCB270
NC
NC
AS
B1
DIF2
DIF1
IF AGC
NC
AUDIO
CVBS
2ndSIF
GND
IF
SDA
SCL
GND
AGC
B3(Vcc)
B2
NC(Vtu)
CD2201
POWER ON LED
POWER ON LED
PCB240
POWER PCB
TO LCD PANEL
COMMAND TRANSMITTER
TM101
GND
GND
GND
GND
GND
MAIN PCB
PCBF40
PCBDA0
REMOCON PCB
OPERATION PCB
STANDBY LED
REMOCON IN
AT+5V
GND
GND
AT+5V
REMOCON IN
STANDBY LED
KEY B
INTERCONNECTION DIAGRAM
WAVEFORMS
21PIN
TUNER
1
7
13
10
µ
s
20
µ
s
20
µ
s
0.5V
200mV
200mV
AV JACK/SWITCH
2
8
14
20
µ
s
10
µ
s
2ms
200mV
200mV
500mV
3
9
15
20
µ
s
10
µ
s
2ms
200mV
200mV
500mV
4
10
16
20
µ
s
10
µ
s
2ms
200mV
200mV
500mV
5
11
17
2ms
10
µ
s
2ms
500mV
100mV
500mV
6
12
18
2ms
10
µ
s
2ms
500mV
200mV
500mV
The following waveforms were measured at
the point of the corresponding balloon
number in the schematic diagram.
the point of the corresponding balloon
number in the schematic diagram.
NOTE:
I-1
WAVEFORMS
19
25
31
2ms
200ms
2.0ms
500mV
1V
100mV
SOUND AMP/HEADPHONE AMP
20
26
32
2.0ms
200ms
10
µ
s
1V
1V
50mV
INTERFACE_HDMI IC
21
27
33
2.0ms
10
µ
s
10
µ
s
1V
1.0V
50mV
22
28
34
2.0ms
10
µ
s
10
µ
s
2V
1.0V
50mV
23
29
35
2.0ms
10
µ
s
10
µ
s
2V
1.0V
50mV
SCALER/MICON
DTV
24
30
10ns
2.0ms
0.5V
50mV
The following waveforms were measured
at the point of the corresponding balloon
number in the schematic diagram.
at the point of the corresponding balloon
number in the schematic diagram.
NOTE:
I-2
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