Sharp LC-20M4E (serv.man8) Service Manual ▷ View online
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
LC-20M4E
LC-20M4E
Ë
MAIN Unit -7/8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
IC1101
MB8346BV
AGND
R1137
0
0
R1138
0
R1110
100K
R1136
0
MPD
A
MPCLK
D
A
C1CS
DAC1CS
MPCLK
MPDA
MPCLK
MPDA
+BADJ
DI CK DA1CS
C1101
0.1u
AGND
1
2
3
4
R1101
33KR2
33KR2
1
2
3
4
5
6
7
8
IC1102
NJM4565V
C1103
0.1u
0.1u
C1102
0.1u
0.1u
AGND
AGND
1
2
3
4
R1104 33KR2
R1150
10KF
R1151
10KF
R1152
0
0
AGND
C1124
0.1u
AGND
AGND
1
2
3
4
R1102
10KR2
AGND
R1105
100K
100K
1
2
3
4
5
6
7
8
IC1103
NJM4565V
1
2
3
4
R1109
33KR2
AGND
C1104
0.1u
1
2
3
4
R1108 10KR2
AGND
C1123
0.1u
0.1u
AGND
1
2
3
4
R1106
33KR2
R1111
100K
1
2
3
4
R1107 10KR2
AGND
1
2
3
4
5
6
7
8
IC1104
NJM4565V
1
2
3
4
R1113
33KR2
AGND
R1114 10KF
R1135 560
R1112
10KF
AGND
C1105
0.1u
0.1u
AGND
C1106
0.1u
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
L
L
L
H
H
H
A
B
C
A
B
C
CONTROL
IC1105
BU4053V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
L
L
L
H
H
H
A
B
C
A
B
C
CONTROL
IC1110
BU4053V
1
2
3
4
5
6
7
8
IC1106
NJM4580V
1
2
3
4
5
6
7
8
IC1107
NJM4580V
1
2
3
4
5
6
7
8
IC1109
NJM353M
1
2
3
4
5
6
7
8
IC1108
NJM4580V
C1110
0.1u
0.1u
AGND
R1115
1K
C1107
0.1u
AGND
C1113 0.1u
AGND
C1111
0.1u
0.1u
AGND
C1108
0.1u
0.1u
AGND
C1115
0.1u
0.1u
AGND
R1118
82KF
82KF
R1129 56KF
R1133 22KF
C1114
0.1u
0.1u
AGND
R1134
8.2KF
AGND
R1119
4.7KF
C1117
56P
56P
C1118
0.1u
+
C1129
220u/16V/EZ1339
AGND
AGND
C1116
0.1u
0.1u
+
C1126
220u/16V/EZ1139
AGND
REV
R1120
1.5/1/2W
1.5/1/2W
R1123 390
R1121
390
Q1102
C4520
Q1101
A1729
R1124 4.7KF
R1130
1.5/1/2W
1.5/1/2W
1
2
3
D1101
1SS250
1SS250
C1122
1u/16V/TV
1u/16V/TV
C1119
1u/16V/TV
AGND
AGND
V16
V32
C1112
0.1u
0.1u
R1117
1K
1K
R1116
1K
1K
C1109
0.1u
0.1u
AGND
AGND
R1153
82
82
V48
V63
B-5.5V
R1127
3.9/1/2W
3.9/1/2W
R1126 0
R1128 1M
R1132 0
R1131 1M
R1125
100/1/2W
100/1/2W
C1120
0.1u/16V/TV
0.1u/16V/TV
AGND
V0
CSCOM
VCOM
R1148
0
COM1
+BADJ
B9V200MA
B5V500MA
B12V1A
B-8V1A
B5V500MA
B12V1A
B-8V1A
R1149
5.6K
5.6K
AGND
+
C1125
100u/6.3V/APFN
100u/6.3V/APFN
AGND
(APF)
EZ1339CE
(APF)
AGND
EZ1339CE
0
2.5
1.9
2.5
1.0
2.5
0.4
2.9
2.3
5.0
5.0
2.3
3.9
0
0
0
0
4.8
3.6
0
4.0
2.5
2.5 -9.3
2.5
2.5
3.1
10.0
4.5
0.4
3.9
1.9
0
0
0
0
2.5
2.5
2.5
1.0
4.0
2.5
2.5
5.0
1.4
2.5
2.5
-9.3
2.5
2.5
0.2
10.0
1.3
3.7
3.1
2.5
1.9
0
0
0
2.5
2.5
2.5
4.8
0.2
2.5
2.5
5.0
10.0
2.5
2.5
2.5
-9.3
2.5
2.5
2.5
10.0
2.5
2.5
2.5
-9.3
2.5
2.5
2.5
-5.7
2.7
0.6 -8.0
2.4
2.4
2.4
10.0
12.5
0
0 -9.3
1.9
1.9
1.6
13.3
-7.5
1.76
2.0
1.4
11.5
12.6
13.2
9.8
1.4
1.6 -9.3
2.4
2.4
4.5
10.0
36~37
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
B
C
D
E
F
G
H
I
J
LC-20M4E
LC-20M4E
GND
1
GND
2
GND
3
TM3
4
TM2
5
TM1
6
SCAN
7
NBH
8
NT/P
AL
9
VS
10
FIELD
11
GND
12
HS
13
HC
14
LLC1
15
LLC2
16
AV
0
17
TST0
18
TST1
19
GND
20
VDD
21
VST2
22
VST3
23
VST4
24
VST5
25
VST6
26
VST7
27
VST8
28
GND
29
TSH
30
PMOD2
31
PMOD1
32
INV OSC
33
OFL1
34
OFL2
35
PC HSY
36
PC VSY
37
GND
38
GND
39
GND
40
VDD
41
VDD
42
VDD
43
PC-HSY0
44
PC-PCLK
45
PC-PDP
46
PC-CSY
47
PC
48
8MEGA
49
GND
50
UV0/R0
51
UV1/R1
52
UV2/R2
53
UV3/R3
54
UV4/R4
55
UV5/R5
56
UV6/R6
57
UV7/R7
58
VDD
59
GND
60
Y0/G0
61
Y1/G1
62
Y2/G2
63
Y3/G3
64
Y4/G4
65
Y5/G5
66
Y6/G6
67
Y7/G7
68
GND
69
B0
70
B1
71
B2
72
B3
73
B4
74
B5
75
B6
76
B7
77
VDD
78
VDD
79
VDD
80
GND
81
GND
82
GND
83
00R7 0R5
84
00R6 0R4
85
00R5 0R3
86
00R4 0R2
87
00R3 0R1
88
00R2 0R0
89
00R1
90
00R0
91
GND
92
00G7 0G5
93
00G6 0G4
94
00G5 0G3
95
00G4 0G2
96
00G3 0G1
97
00G2 0G0
98
00G1
99
00G0
100
VDD
101
GND
102
00B7 0B5
103
00B6 0B4
104
00B5 0B3
105
00B4 0B2
106
00B3 0B1
107
00B2 0B0
108
00B1
109
00B0
110
GND
111
OCK
112
SPLS
113
SPRS
114
LBR
115
HG0
116
HDCK
117
GND
118
GND
119
GND
120
VDD 5V
121
VDD 5V
122
VDD 5V
123
REVV0
124
REV
125
DL_EN
126
DL_DR
127
DL_CK
128
GND
129
DL_IN7
130
DL_IN6
131
DL_IN5
132
DL_IN4
133
DL_IN3
134
DL_IN2
135
DL_IN1
136
DL_IN0
137
GND
138
MP_CS
139
MP_CK
140
MP_DA
141
MP_RDA
142
GND
143
MP_RCS
144
OSD_CK
145
OSD_HD
146
OSD_VD
147
OSD_B
148
OSD_G
149
OSD_R
150
OSD_BK
151
U/D
152
GSPI
153
GCK
154
RESET
155
VDD 5V
156
POWER
157
VDD
158
VDD
159
VDD
160
IC1201
IX3378CE
1
2
3
4
5
6
7
8
R1202 22R4
1
2
3
4
5
6
7
8
R1204
22R4
1
2
3
4
5
6
7
8
R1206
22R4
1
2
3
4
R1203
22R2
22R2
1
2
3
4
R1209
22R2
1
2
3
4
R1205
22R2
22R2
1
2
3
4
R1207
22R2
22R2
R1208
100
100
R1210
22
R1211
220
220
UV0
UV1
UV2
UV3
UV4
UV5
UV6
UV7
UV1
UV2
UV3
UV4
UV5
UV6
UV7
VP_Y0
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
UV0
UV1
UV2
UV3
UV4
UV5
UV6
UV7
UV1
UV2
UV3
UV4
UV5
UV6
UV7
VP_Y0
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
VA
C
T
VACT
LLC1
LLC1
HSY
HSY
FIELD
FIELD
VSY
VSY
VACT
LLC1
HSY
FIELD
VSY
LLC1
HSY
FIELD
VSY
1
2
3
4
R1223 100R2
1
2
3
4
R1218
100R2
REV
1
2
3
4
5
6
7
8
R1222 0R4
1
2
3
4
5
6
7
8
R1221
3.3KR4
3.3KR4
AGND
OSDBLK
OSDR
OSDG
OSDB
OSDVD
OSDHD
OSDCK
MPRCS
OSDR
OSDG
OSDB
OSDVD
OSDHD
OSDCK
MPRCS
MPRDA
MPDA
MPCLK
MPCS
MPDA
MPCLK
MPCS
1
2
3
4
5
6
7
8
R1214
100R4
R1233
100
R1217
100
C1203
0.1u
RESET
OFL1
R1238
100
DL_IN0
DL_IN1
DL_IN2
DL_IN3
DL_IN4
DL_IN5
DL_IN6
DL_IN7
DL_IN1
DL_IN2
DL_IN3
DL_IN4
DL_IN5
DL_IN6
DL_IN7
DL_CK
DL_DR
DL_EN
DL_DR
DL_EN
1
2
3
Q1201
DTC144EE
R1232
100
AGND
R1225
4.7K
U/D
C1205 22P
C1204 22P
AGND
R1220
4.7K
R1234
4.7K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
IC1202
PD485505
DL_IN0
DL_IN1
DL_IN2
DL_IN3
DL_IN4
DL_IN5
DL_IN6
DL_IN7
DL_CK
DL_DR
DL_EN
AGND
DL_CK
DL_DR
DL_EN
VP_Y0
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
FIFO
1
2
3
4
5
6
7
8
R1236
47KR4
1
2
3
4
5
6
7
8
R1235
47KR4
47KR4
AGND
AGND
1
2
3
4
5
6
7
8
IC1203
TC4W53U
AGND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
IC1204
TC4024BF
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC1205
TC4052BF
C1219
0.1u
C1220
0.1u
0.1u
AGND
AGND
AGND
AGND
AGND
C1222
0.1u
0.1u
AGND
1
2
3
Q1202
DTC144EE
AGND
R1213
22K
22K
R1216
10K
10K
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
SC1201
N0461FJ
VCOM
VCOM
DGND
CSCOM
CSCOM
DGND
V0
V16
V32
V48
V63
DGND
3.3V VSH
3.3V VSH
5V VLS
5V VLS
DGND
DGND
DGND
DGND
DGND
R0
R1
R2
R3
R4
R5
G0
G1
G2
G3
G4
G5
B0
B1
B2
B3
B4
B5
CK
DGND
SPIO
SPOI
LBR
HG
Y
O
BI1
Y
O
BI2
Y
O
BI3
Y
O
BI4
Y
O
BI5
Y
O
BI6
Y
O
BI7
Y
O
BI8
FB1203
0076TA
0076TA
VCOM
COM1
V0
V16
V32
V48
V63
Y
OBY1
Y
OBY2
Y
OBY3
Y
OBY4
Y
OBY5
Y
OBY6
Y
OBY7
Y
OBY8
R1212
0
AGND
OSDBLK
OSDR
OSDG
OSDB
OSDG
OSDB
OSDVD
OSDHD
OSDCK
MPRCS
MPRDA
MPDA
MPCLK
MPCS
MPCLK
MPDA
MPCS
MPRDA
MPRCS
OSDHD
OSDVD
OSDR
OSDG
OSDB
OSDBLK
OSDCK
MPDA
MPCS
MPRDA
MPRCS
OSDHD
OSDVD
OSDR
OSDG
OSDB
OSDBLK
OSDCK
C1211
0.1u
0.1u
+
C1210
100u/4V/APF
100u/4V/APF
AGND
AGND
L1203
22uH/1M
22uH/1M
L1205
22uH/1M
22uH/1M
B3.3V200MA
+
C1214
100u/4V/APF
C1215
1u/10V/KZ1025
AGND
B29V10MA
B5V500MA
L1201
47uH/1M
L1202
10uH/1M
C1208
0.1u/50V/TV
0.1u/50V/TV
AGND
C1207
0.1u
+
C1209
220u/6.3V/ASH
AGND
L1204
22uH/1M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
SC1202
N0206FJ
DGND
DGND
DGND
VLS
VLS
DGND
DGND
DGND
DGND
DGND
VGL
VGL
VGL
VSH
VSH
VGH
VGH
U/D
GSP
POWER
GCK
CSCOM
CSCOM
YOBI1
YOBI2
YOBI3
YOBI4
YOBI5
YOBI6
YOBI7
YOBI8
YOBY1
YOBY2
YOBY3
YOBY4
YOBY5
YOBY6
YOBY7
YOBY8
R1230
5.6K
5.6K
R1231
0
AGND
1
2
3
D1201
DAN222
DAN222
R1228
0
+
C1218
10u/16V/APFN
AGND
+
C1206
10u/50V/APFN
CSCOM
B-5.5V
R1219
0
0
+
C1216
22u/35V/APF
AGND
V0
V16
V32
V48
V63
B-5.5V
COM1
CSCOM
VCOM
V16
V32
V48
V63
B-5.5V
COM1
CSCOM
VCOM
V0
V16
V32
V48
V63
B-5.5V
COM1
CSCOM
VCOM
V16
V32
V48
V63
B-5.5V
COM1
CSCOM
VCOM
AGND
C1212
0.1u
0.1u
+
C1213
100u/6.3V/APF
AGND
AGND
AGND
C1202
0.1u
0.1u
1M220J2R9N
1M220J2R9N
(APF)
(APF)
COM1
5.0
0
0
0
0
0
0
5.0
5.0
0
0
0
0
0
0
1.4
1.7
1.6
1.7
5.0
5.0
5.0
0
1.5
1.4
1.1
0.6
0
0
0
0
5.0
0
0
5.0
0
0
0
0
0
5.0
0
5.0
0
0
0
0
5.0
0
5.0
0.9
0.9
0
0.9 5.0
0
0.9
0.9
1.0
0
0
5.0
0
5.0
0
-5.9 -9.0
-9.8
3.25
3.25
0
1.1
0
3.2
0
1.1
0
0.6
0.4
0.4
0.5
0.6
0.5
0.9
2.5
3.2
0
1.3
1.7
1.7
1.7
1.4
1.1
0.8
0.3
0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
3.2
3.2
3.2
0
0
0 0.9 1.0 0.3 0.3 3.2
0
0
0
0
0 0
0
0
0
0 0 3.2
0
0
0 2.7
0 1.6 0.9 0.1
0
0
0
0
0 0 0.5
0 0.1
0
0
0
0
0
0 1.5
0 0.8 0.9 0.8
0
0 0 1.5 0.5 0.5 0.8 0.8 0.8
0
3.2
0
0 1.0 0.5 0.8 0.8 0.8 1.1
0
0
0 1.6
0
0
0 0.1
0
0
0
0
0
3.25
3.2
3.2
0
5.0
5.0
0.9
0
5.0
0
0
0
0.4
5.0
5.0
2.5
5.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
5.0
5.0
2.5
2.5
5.0
5.0
5.0
3.2
5.0
0
0
Ë
MAIN Unit -8/8
38~39
40
LC-20M4E
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
Ë
JACK Unit
R4401
100K
R4302
100k
R4301
100k
R4402
75 1/8w
R4303
100k
R4405
75 1/8w
R4406
75 1/8W
R4407
75 1/8W
VIDEO
AUDIO R
AUDIO L
PY
PB
PR
POWER
INPUT
D12V
INPUT
D12V
VIDEO
AUDIO R
AUDIO L
AV1 INPUT
AV2 INPUT
OUTPUT
D4401
EX0879CE
D4402
EX0879CE
D4405
EX0879CE
D4406
EX0879CE
D4407
EX0879CE
AGND
AGND
AGND
AGND
AGND
AGND
FB4301
0059CE
FB4302
0059CE
FB4401
0059CE
FB4303
0059CE
FB4304
0059CE
FB4405
0059CE
0059CE
FB4406
0059CE
0059CE
FB4407
0059CE
0059CE
V1_V
V2_V
SY
SC
SC
DY
DPB
DPR
DPB
DPR
V1_L
V1_R
V1_R
V2_L
V2_R
V2_R
GND
GND
FL
FR
FR
INV_VCC
INV_GND
PA_GND
SSW
SIG_VCC
SIG_GND
SIG_GND
PA_VCC
INV_VCC
INV_GND
GND
HPDET
GND
GND
GND
GND
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
11
12
13
14
15
16
17
18
19
20
SC4402
N0199FJ
AGND
V1_V
FB4402
0059CE
R4304
100K
V1_V
V2_R
V2_L
V2_V
V1_L
V1_R
DY
DPB
DPR
V1_L
V1_R
V1_R
V2_V
V2_L
V2_R
V2_R
DY
DPB
DPR
DPB
DPR
COMPONENT
1
2
2
P4302
N0174FJ
RSP
PA_GND
PA_GND
RSP
PA_GND
PA_GND
2
J4403
Z001WJ
2
J4404
Z001WJ
2
J4405
Z001WJ
2
J4401
Z001WJ
2
J4402
Z001WJ
c
f
e
d
e
d
b
a
a
J4303
G0050CE
G0050CE
c
f
e
d
e
d
b
a
a
J4302
G0050CE
G0050CE
RCA RED
RCA WHITE
BNC
BNC
BNC
BNC
BNC
RCA WHITE
RCA RED
AGND
(12V)
(12V)
(12V)
(12V)
(12V)
3
1
1
4
2
2
E1
E2
SC4401
JAKE0061TA
D4403
EX0879CE
D4404
EX0879CE
R4403
75 1/8W
R4404
75 1/8W
FB4404
0059CE
FB4403
0059CE
0059CE
SSW
SY
SC
SC
SY
SSW
SC
SY
SSW
1
2
2
P4601 N0174FJ
1
2
2
P4602
N0174FJ
FSP_L
FSP_R
GND
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
J4701
E0193CE
E0193CE
AGND
1
FH4701
1002CE
1
FH4703
1002CE
1002CE
1
FH4704
1002CE
1002CE
1
FH4702
1002CE
1002CE
AGND
D0008CE
2A
2A
D0008CE
2A
2A
AGND
F4701
F4702
1
2
3
4
5
6
7
8
9
2
3
4
5
6
7
8
9
10
11
12
11
12
P4702
N1278GE
YC IN
å
å
AND SHADED COMPONENTS=SAFETY RELATED PARTS
41
LC-20M4E
Ë
SWITCH Unit
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
R4011
12k
R4012
8.2k
R4013
12k
R4014
8.2k
A
GND
A
GND
D4008
EX0879CE
D4007
EX0879CE
A
GND
1
2
3
4
5
6
S4001
P0614CE
A
GND
D4006
EX0891CE
A
GND
KEY1
KEY2
PO
W1
PO
W2
A
V
INPUT
V
OL+
V
OL-
SELECT
SELECT
MENU
1
2
3
RMC4001
RRMCU0239CE
2
1
3
4
G
R
D4003
PX0421
1
2
3
Q4001
DTC144EE
C4001
1u/10V
D4001
EX0879CE
D4002
EX0879CE
A
GND
A
GND
A
GND
KZ1025CE
A
GND
A
GND
IREM
+5V
PO
W
GND
R4001
100
A
GND
R4015
220 1/2W
R4016
220 1/2W
FB4001
A003WJ
FB4002
A003WJ
C4005
470P
C4004
470P
4
5
3
1
2
6
Q4002
UP
A606T
2
1
3
4
G
R
D4004
PX0421
Q4004
C2712Y
Q4003
C2712Y
R4005
82
R4006
330
R4007
18K
R4003
18K
R4004
4.7K
R4008
4.7K
A
GND
R4002
100K
A
GND
1
2
3
Q4005
DTC144EE
D4005
PX0419CE
R4010
1.8K
R4009
4.7K
A
GND
1
2
3
4
5
7
8
J4001
I0063CEZZ
A
GND
A
GND
R4017
3.9K
R4018
3.9K
A
GND
A
GND
+
C4002 47u/16V
+
C4003 47u/16V
1
2
3
4
5
6
7
8
9
10
11
12
13
P4001
N1320RE
TIMER
HPR
HPL
HPDET
GND
A
GND
R4019
0
1
2
3
4
5
SW4001
K0087GE
1
2
3
4
5
SW4002
K0087GE
1
2
3
4
5
SW4003
K0087GE
1
2
3
4
5
SW4004
K0087GE
1
2
3
4
5
SW4005
K0087GE
1
2
3
4
5
SW4006
K0087GE
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