Read Sharp LC-20SD4E (serv.man5) Service Manual 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
W801
C120
0.1 B
C110
0.1
B
C108
0.1 B
C101 0.1
B
C118
18P
CH
C115
18P
CH
C117
0.1 B
C113
0.1
B
C126
0.01
B
C127
0.1
B
C122
0.1 B
C121
0.1
B
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
R146
100
R141
100
R144
4.7K
R102
2.2K
R109
100
R118
4.7K
R127
4.7K
R125
100
R121
10K
R124
100
R126
4.7K
R117
4.7K
R116
4.7K
R110
10K
R111
4.7K
R128
4.7K
R130
4.7K
R134
10K
R123
100
R143
10K
R145
100
R139
100
R133
4.7K
R129
4.7K
R132
4.7K
R140
4.7K
R138
4.7K
R147
100
R148
100
R122
100
R131
100
R120
4.7K
R105
2.2K
R106
4.7K
R107
10K
R112
4.7K
R113
4.7K
R114
4.7K
R115
4.7K
R137
10K
C119
220
6.3V
V-S
C107
220
6.3V
V-S
C114
220
6.3V
V-S
C125
100
10V
V-S
C128
0.47
50V
V-S
C132
2.2
50V
V-S
IC199
AT24C256BN-10SU-1.8
EEP ROM IC 64K
1
2
3
4
5
6
7
8
D103
UDZS5.6B
D101
UDZS5.6B
Q101
KRC103SRTK
KRC103SRTK
SW
X101
16MHz
100WT01611
Q102
KRA103SRTK
SW
IC102
PST3229NR
RESET IC
1
2
3
4
5
D108
RB520S-30-TE61
D107
RB520S-30-TE61
IC101
OEC7162A
MICON
1
10
100
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
69
7
70
71
72
73
74
75
76
77
78
79
8
80
81
82
83
84
85
86
87
88
89
9
90
91
92
93
94
95
96
97
98
99
CP102
A2001WV2-10P
MICON_DATA
1
10
2
3
4
5
6
7
8
9
JG107
JG106
JG101
JG108
JG109
JG111
JG116
JG125
JG124
JG103
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
CAUTION: DIGITAL TRANSISTOR
CAUTION: DIGITAL TRANSISTOR
CP103
A2001WV2-7P
1
2
3
4
5
6
7
CP101
A2001WV2-5P
1
2
3
4
5
S806X
S807X
DVB_SW-H
AGC
DVB_FAN_ON-H
DTUNER_RESET_L
DTUNER_POWER
SDA1
SCL1
AUDIO_MUTE
AFT
DVB_ASPECT_IN
AGC
EXT_MUTE-H
SCART1_SW
SCART1_Y
SCART1_SW
EEPROM_SCL
SCALER_RESET
EEPROM_SDA
DVS
P.CON+5V
POWER_FAIL
SCART1_Y
POWER_ON-H
DVS
DVB_POWER_ON-H
PANEL_ON-H
STANDBY-H
SCALER-H
STEREO_RESET
STEREO_RESET
AUDIO_MUTE
EXT_MUTE-H
EXT_MUTE-H
HSCAN
4SI_SCL
4SI_SDA_IN
VSCAN
4SI_SDA_OUT
4SI_CHIP_SE
4SI_CHIP_SE
SCALER_RESET
REMOCON_IN
STANDBY_LED
SD_SW1
AT+3.3V
DVB_FAN_ON-H
SCALER_RESET
DVB_SW-H
DTUNER_POWER
4SI_CHIP_SE
DTUNER_RESET_L
IIC_OFF
4SI_SCL
DTUNER_RX
DTUNER_TX
DTUNER_TX
4SI_SDA_IN
PANEL_ON-H
SCALER_SW
LCDON
4SI_SDA_OUT
OFL1
DVB_POWER_ON-H
OFL2
LMP_ERR
DVB_ASPECT_IN
LCDON
SCALER_SW
ERPG_ON_H
ERPG_ON_H
STANDBY-H
ERPG_ON_H
AFT
C_SYNC
KEY-B
DTUNER_TX
KEY-B
KEY-A
DTUNER_RX
KEY-A
KEY-C
RTS0
SD_SW1
CLK0
KEY-C
RX
TX
EEPROM_SCL
EEPROM_SDA
LMP_ERR
IIC_OFF
CONTROLER_RESET
SDA1
SCL1
SCL1
TX
HSCAN
RX
VSCAN
RTS0
P.CON+3.3V
CLK0
CONTROLER_RESET
P.CON+3.3V
4SI_CHIP_SE
4SI_SDA_OUT
STANDBY_LED
4SI_SDA_IN
REMOCON_IN
POWER_FAIL
POWER_ON-H
SCALER-H
4SI_SCL
C_SYNC
OFL2
CNVSS
OFL1
SCL1
SDA1
P.CON+5V
CNVSS
AT+5V
GND
AT+5V
AT+3.3V
AT+3.3V
EEPROM_SCL
EEPROM_SDA
PCBDS0
CEF197
CEF197
H-18
H-17
DVB_TX
DVB_RX
76 SCALER-H
75 HP_IN
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
GND
TX
BUSY
VCC
RX
CLK
CNVSS
RESET
NC
GND
NC
3.3
3.3
3.3
0
VSS
A2
A1
A0
SDA
SCL
TEST
VCC
0
0
0
0
AVCC
VREF
4SI_CHIP_SE
4SI_SDA_IN
4SI_SDA_OUT
99
100
POWER FAIL
REMOCON IN
VCC
XIN
XOUT
VSS
BYTE
CNVSS
RESET
NC
DVD POWER
LIGHT_CTL
4SI_SCL
CVBS/PC
VGA/YUV
HDMI/DVI
P50/^WRL/^WR
SD_SW1
SC2_CVBS_OUT-H
SC2_AUDIO_OUT-H
49
48
50
47
VCC
VSS
HEADPHONE_IN
EEPROM_SCL
EEPROM_SDA
STEREO_RESET
HP_MUTE
NC
START_SW
IIC_OFF
LCD_H
AVSS
KEY-A
KEY-B
AFT
NC
POWER ON-H
(CLK0)
(RTS0)
SYNC_HD
DVD_RESET
(32KHz_OUT)
HDMI_RESET
(32KHz_IN)
V_SYNC
C_SYNC
NC
NC
98
EPM
COMPONENT/HDMI
NC
SCART_AUDIO_SW
SCALER_RESET
S_DET
SCART3_SW
SW_SCART
LCDON
PDP_RLY
SCART3_SW
SCART2_SW
SCART1_SW
AUDIO_MUTE
EXT_MUTE-H
NC
AGC
NC
0
0
NC
0
3.2
3.73
0
0
0
0
3.2
0
3.2
0
3.2
0
0
0
3.2
3.2
0
0
3.2
0
0
1.4
3.2
3.2
3.2 3.4 3.2 3.2
3.09
3.16
3.2
3.2
0
0
0
0
3.3
3.3
3.2 3.2
3.2
3.2
0
0
0
0
0
0
3.2
3.2
3.2
3.2
0
0
0
0
0
0
0
0
0
3.2
3.2
0
0
0
0
0
0
0
0
0
0
3.2
0 3.2
0
0
0 3.4
3.2 3.2 3.2
0
0
2.75
2.75
0
0
0
0
0
2.51
0
0
0
0
0
0
ROM WRITER
(SCALER PCB)
MICON SCHEMATIC DIAGRAM
FROM/TO SCALER
PANEL_ON
PC_CONTROL
OUT
NC
NC
GND
3.4
IN
3.4
0
4.9
0
5.0
0
3.3
0
CLK
SDIN
LATON
DVB_FAN_ON-H
DVB_SW-H
DTUNER_RESET-L
DTUNER_MUTE-L
DTUNER_POWER
NC
26
27
28
SCL1
SDA1
LMP_ERR
RX
TX
NC
GND
EEPROM_SCL
IIC_OFF
GND
EEPROM_SDA
CLK
SDIN
DVB_POWER_ON-H
ON_TIMER_LED
COMPOSITE/RGB
OFL2
OFL1
CONTROLER_RESET
0
0
RESET
CHIP_SELECT
4SI_SDA_IN
GND
4SI_SDA_OUT
4SI_SCL
AT+3.3V
FROM/TO RSDS
29
FROM/TO SYNC SEPA
FROM/TO REGULATOR
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