DOWNLOAD Sharp LC-20M4E (serv.man8) Service Manual ↓ Size: 2.04 MB | Pages: 50 in PDF or view online for FREE

Model
LC-20M4E (serv.man8)
Pages
50
Size
2.04 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
lc-20m4e-sm8.pdf
Date
PREV: Sharp LC-20M4E (serv.man7) Service Manual

Sharp LC-20M4E (serv.man8) Service Manual ▷ View online

1
2
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8
9
10
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20
A
B
C
D
E
F
G
H
I
J
LC-20M4E
LC-20M4E
28~29
å
 AND SHADED COMPONENTS=SAFETY RELATED PARTS
Ë
MAIN Unit -3/8
B8V30MA
B29V10MA
B9V200MA
B5V500MA
B12V1A
BTU5V
B-8V1A
Q708
FMMT718
R701
0
R702
1K/1/4W
(1/4W)
R773
4.7K
C739
0.1u
Z
1
2
3
D710
DAN222
1
2
3
Q701
DTC144EE
+
C710
330u/16V/ASH
L705
C0130CE
(ASH)
R718
820/1W
C711
5600p
+
C712
100u/16V/EZ1176
C713
5600p
EZ1176CE
(OS)
D703
SFPB56
FB710
0095CE
1
2
3
4
5
6
7
8
IC701
NJM2377M
FB701
0095CE
FB709
0095CE
R722
0
R721
0
FB704
0051TA
FB705
0051TA
FB706 0051TA
FB707
0051TA
FB708
0051TA
1
2
3
D704
1SS250
1
2
3
D705
1SS250
+
C714
47u/50V/ASD
C715
0.1u/50V/TV
R725
0
R726
68K/1/8W
+
C716
220u/25V/ASH
C719
0.1u/50V/TV
R727
0
R728
39K
+
C718
330u/16V/ASH
C717
1u/16V/TV
R730
22K
+
C722
150u/6.3V/EZ1177
C721
1u/16V/TV
+
C724
330u/16V/ASH
C725
1u/16V/TV
R731
2.2K/1/4W
(ASD)
(ASH)
(ASH)
EZ1177CE
(TV)
(TV)
(TV)
L703
C0057CE
L704
C0055CE
(TV)
(OS)
R706
10
R705
180K
C704 470p
C702
1u/10V/KZ1025
R704
13KF
R703
270K
R707 1M
C705 0.01uK
R708
6.8K
R709
2.7KF
R710
12KF
R711
1.5KF
R712
68KF
1
2
3
D701
DAN222
R713
56KF
R714
47K
C709
1u/16V/TV
(TV)
R715
10K
Q707
C2712Y
Q704
C2712Y
R762
1.2K/1/8W
1
2
3
4
5
6
7
8
IC702
NJM2147M
R733
1K
R752
1K
R738
10KF
R739
6.2KF
R740
47KF
R735
24KF
R736
22KF
R741
11KF
R742
2.4KF
R743
3.3KF
R744
3.3KF
R745
6.8KF
R746
1.2KF
R747
1K
R749
1K
R734
10KF
C730
0.1u/50V/TV
Q705
C2712Y
C731
0.1u
C732
1u/10V/KZ1025
R748
15K
1
2
3
D709
DAN222
R737
10K
C734
0.1u
+35V
+16V
B-8V1A
L702
C0130CE
C728
1u/16V/TV
+
C727
470u/6.3V/APW
(TV)
C733
1u/10V/KZ1025
R751
10K/1/10W
R750
390
BTU5V500MA
R716
0/1/2W
SIG_VCC
POW
+
C701
EZA029WJ/4.7u/35V
+
C703
22u/16V/APT
+BADJ
C735
0.01u
R765
0
R763
0
R764
0
B9V200MA
(TV)
G
S
D
Q702
K2503
10
9
8
7
3
6
1
5
2
4
T701
Z0800CEZZ
3
4
5
2
1
Q7306
FMY3
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
D706
SFPB74
D707
SFPB74
C720 180P
1
2
3
D708
DAN222
R724
1
1
2
3
IC781
BA033FP
+
C782
22u/6.3V/APFN
C781
0.33u
AGND
AGND
AGND
3.3V200MA
AGND
VPC
Q703
C2712Y
AGND
AGND
C723
1u/16V/TV
100uH
100uH
3.3V Reg
1.5
0.5
0.6
13.1
0.5
0.9
0
8.1
0
0.6
1.4
0
0
8.2
0
19.9
13.2
13.2
12.5
0.8
0.2
5.0
42.0
33.4
17.33
14.91
1.6
10.16
0.12
5.08
1.7
-9.3
5.0
0
3.32
15.4
14.9
14.8
32.2
33.4
32.8
32.8
4.8
5.0
0
33.4
31.9
5.0
5.0
33.4
31.4
31.9
5.0
-3
4.99
0
10
0
8.6
9.2
8.5
å
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 -4/8
OFL1
INV_GND
6
5
1
4
3
2
D1702
IMN10
6
5
1
4
3
2
D1703
IMN10
1
2
3
4
5
6
7
8
R1705
5.6KR4
1
2
3
4
R1706
5.6KR2
R1707
56K
4
5
3
1
2
6
Q1702
UPA606T
4
5
3
1
2
6
Q1701
UPA606T
4
5
3
1
2
6
Q1703
UPA606T
6
5
1
4
3
2
D1701
IMN10
1
2
3
4
5
6
7
8
R1703
820KR4
1
2
3
4
R1704
1MR2
C1703
1u/25V/TQ
C1704
1u/25V/TQ
C1705
1u/25V/TQ
(TQ)
(TQ)
(TQ)
C1706
1u/25V/TQ
C1701
1u/25V/TQ
C1702
1u/25V/TQ
(TQ)
(TQ)
(TQ)
6
5
1
4
3
2
D1704
IMN10
1
2
3
4
5
6
7
8
R1701
2.2KR4
1
2
3
4
R1702
1.8KR2
LERR
B5V500MA
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
1
2
3
P1701
N0378GE
1
2
3
P1702
N0378GE
LAMP GND
LAMP GND
LAMP GND
LAMP GND
LAMP GND
LAMP GND
R1777
10K
1
2
P1771 N0278GE
1
2
3
Q1774
DTC114YE
AGND
AGND
OFL
GND
0
0
0
14.9
15.8
14.7
0
0
0
14.7
12.2
12.1
0
0
0
0
0
0
0
0
0
0
0
0
1.9
0
0
0
15.8
0
0
15
0
0
14.7
0
0
14.6
0
0
12.1
0
0
12.2
0
30~31
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
1
2
3
4
5
6
7
8
R2011
100R4
1
2
3
4
5
6
7
8
R2015
330R4
1
2
3
4
R2022
100R2
1
2
3
4
5
6
7
8
R2033
100R4
1
2
3
4
R2003 22KR2
R2026 100
R2045
10K
R2018
22K
1
2
3
4
R2017 1KR2
R2044
10K
C2002
220P
C2001
1000P
R2001
1K
+
C2003
1u/50V/APFN
C2019
47P
R2010
100
R2025
22K
3
1
2
X2002
Z0169TA
CSYNC
C2010
0.1u
1
2
3
4
5
6
7
8
IC2003
TC4W66F
1
2
3
4
5
6
7
8
IC2004
BR2416E2
AGND
OSDBLK
1
2
3
4
R2012
10KR2
OSDCK
1
2
3
4
R2014
100R2
1
2
3
4
R2013
22KR2
AGND
R2029
22K
C2007
0.1u
R2016
10K
MRD
Y
R2041
100
D
A
C1CS
OSDB
OSDG
OSDR
OSDB
OSDG
OSDR
C2009
0.1u
1
2
3
IC2002
PST529DM
R2007
22K
C2006
0.1u
PSWIN
SD
A1
SCL1
1
2
3
4
R2030 33KR2
OSDVD
OSDHD
KEY1
KEY2
MPCLK
MPD
A
MPCS
MPRD
A
MPRCS
1
2
3
IC2701
AN8005M
AGND
C2701
1u/16V/TV
C2703
1u/16V/TV
+
C2702
22u/16V/APFN
AGND
AGND AGND
R2701 1
Q2703
A1162Y
Q2701
A1162Y
R2702
150K
R2703
270K
1
2
3
Q2702
DTC144EE
AGND
1
2
3
D2001
DAN222
1
2
3
Q2004
DTC144EE
AGND
R2740 1K
R2739 1K
R2027
22K
R2705
1
1
2
3
4
5
P2001
N0558RE
SCL1
SDA1
GND
MRDY
B5V
MRDY
1
2
3
4
5
6
7
8
9
10
11
12
13
P2002
N1320RE
KEY2
KEY1
POW1
POW2
GND
HPDET
HPL
HPR
TIMER
GND
POW
B5Va
IREM
R2726
1
AGND
DDCRESET
1
2
3
Q373
DTC144EE
1
2
3
Q374
DTA144EE
R373
100
CSYNC
OSDCK
OSDBLK
DAC1CS
SDA1
SCL1
SDA1
SCL1
CSYNC
DAC1CS
OSDCK
OSDBLK
1
2
3
4
5
6
7
8
R2043
100R4
MPRCS
MPRDA
MPCS
MPDA
MPCLK
DDCRESET
DDCRESET
MPCLK
MPDA
MPCS
MPRDA
MPRCS
C2017
0.1u
CVIN
CVIN
OSDHD
OSDVD
OSDHD
OSDVD
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
AGND
B5V500MA
B5V500MA
R2002
100
AGND
R2009
1K
AGND
AGND
APF
R2021
1K
SIG_VCC
POW
SSYSTEM
SSW
R371
22K
R372
22K
1
2
3
Q371
DTC144EE
AGND
HPDET
AGND
L/R
SRESET
P
APO
W
SSTBY
HPDET
HPDETM
HPDETM
RSMUTE
FSMUTE
A
V1/A
V
2
VIS/3DS
AV/SY/DY1
AV1/VISY
VIS/3DS
AV1/AV2
L/R
SRESET
PAPOW
SSTBY
RSMUTE
FSMUTE
AV/SY/DY2
LERR
LMUTE
V_IN/OUT
LMUTE
A_IN/OUT
V_IN/OUT
A_IN/OUT
AV/SY/DY2
AV/SY/DY1
AV1/VISY
VIS/3DS
AV1/AV2
SRESET
SSTBY
PAPOW
FSMUTE
RSMUTE
L/R
LMUTE
A_IN/OUT
V_IN/OUT
TP2002
TP
TP2001
TP
TP2003
TP
TP2005
TP
TP2007
TP
TP2006
TP
TP2009
TP
V_IN/OUT
A
V1/A
V2
A
V/SY/D
Y1
A
V1/VISY
VIS/3DS
A
V/SY/D
Y2
LMUTE
A_IN/OUT
V HOLD
1
HF
2
CC
3
TIMED
4
M/S OUT
5
CSYNC
6
IREM
7
GND
8
GND
9
XCIN
10
XOUT
11
RESET
12
XOUT
13
GND
14
XIN
15
VCC
16
OSCIN
17
OSCOUT
18
PSWIN
19
M/S IN
20
BLK
21
NC
22
D
A
C1CS
23
D
A
C2CS
24
D SW
25
DV
T
26
MRD
Y
27
SCL2
28
SCL1
29
SD
A1
30
SDA2
31
R
32
G
33
B
34
SUBDOUT
35
SUBDIN
36
SUBCLK
37
38
NC
39
FCH
40
IREM OUT
41
L ERR
42
N358
43
N443
44
PAL
45
SECAM
46
PAL M
47
VC
48
SAFE
49
LCHG
50
REQ
51
52
FSMUTE
53
RSMUTE
54
HPDET
55
SSTBY
56
OUTSEL
57
P
APO
W
58
L/R
59
SRESET
60
DENF
61
VCC
62
63
VSS
64
65
66
67
68
69
STD
70
PMUTE
71
PO
W
OUT
72
NC
73
NC
74
MPRCS
75
MPRD
A
76
MPCS
77
MPD
A
78
MPCLK
79
DDCRESET
80
KEY4
81
KEY5
82
PASTBY
83
SAW SW
84
MODE1
85
MODE2
86
SSYSTEM
87
SSW
88
AFT
89
AGC
90
KEY1
91
KEY2
92
KEY3
93
POWIN
94
VSYNC
95
AVSS
96
HSYNC
97
TVSETB
98
AVCC
99
CVIN
100
IC2001
IXA074WJ
A
V/SY/D
Y2
A
V1/VISY
A
V/SY/D
Y1
R374
100
FRSP
FLSP
1
2
3
4
R2047
0R2
R2048
100
R375
10K
FLSW1
FLSW2
5V Reg
10MHz
R477
0
0
0
5.0
12.5
13.2
12.6
12.1
12.5
0
12.5
0
5.0
13.0
13.2
0
0
5.0
0
12.5
5.0
0
5.0
2.5
2.7
5.0
0
2.2
1.7
5.0
5.0
0
0
0
0
1.6
2.7
0
5.0
0.1
5.0
4.97
0
0
4.97
0
0
0
0
0
0
5.0
0
0
0
0
0
0
5.0
0
0
0
0
0
0
0
0
0
0
5.0
5.0
0
5.0
0
5.0
0
5.0
0
0
5.0
0
0
0
5.0
5.0
0
5.0
0
0
5.0
0
0
0
0
5.0
5.0
5.01
0
5.0
0
5.0
5.0
5.0
5.0
5.0
0
0
5.0
5.0
5.0
0
0
5.0
0
0
0.2
0.2
0
0
0.6
0.6
4.9
0
0
1.6
1.6
5.0
2.3
0
2.0
5.0
2.6
2.5
0
0
0
0
0
0
5.0
5.0
5.0
0
2.6
2.1
Ë
MAIN Unit -5/8
32~33
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 -6/8
C805
1u/10V/KZ1025
C806 1u/10V/KZ1025
C818
1u/10V/KZ1025
C813
1u/10V/KZ1025
C822
1u/10V/KZ1025
C839
1u/10V/KZ1025
DGND
C823
1u/10V/KZ1025
C837
1u/10V/KZ1025
C836
1u/10V/KZ1025
C827
0.1u
+
C826
100u/4V/APF
1
2
3
4
R804
100R2
1
2
3
4
5
6
7
8
R801
0R4
1
2
3
4
5
6
7
8
R802
0R4
1
2
3
4
5
6
7
8
R803
0R4
1
2
3
4
5
6
7
8
R810
0R4
1
2
3
4
5
6
7
8
R813
0R4
VSY
VSY
HSY
HSY
VA
C
T
VACT
FIELD
FIELD
UV0
UV1
UV2
UV3
UV4
UV5
UV6
UV7
UV0
UV1
UV2
UV3
UV4
UV5
UV6
UV7
VP_Y0
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
VP_Y0
VP_Y1
VP_Y2
VP_Y3
VP_Y4
VP_Y5
VP_Y6
VP_Y7
VSY
HSY
VACT
FIELD
UV0
UV1
UV2
UV3
UV4
UV5
UV6
UV7
R816
0
LLC1
X801
C0012CE
C803
7P
C804
7P
R836
0
DGND
+
C801
10u/16V/APFN
C802
0.1u
C812
1u/10V/KZ1025
C819
1u/10V/KZ1025
C817 0.68u/16V/TV
R812
0
+
C809 100u/16V/APK
C810
0.1u
C820 0.1u
+
C821
470u/16V/APWN
C814
1000P
C815
0.68u/16V/TV
C816
0.68u/16V/TV
R811
2.2K
R814
3.3K
AGND
R826
100
DDCRESET
RESET
+
C833 100u/4V/APF
C834
0.1u
L805
C0055CE
+
C838
100u/4V/APF
SCL1
SDA1
B3.3V200MA
L804
C0055CE
B5V500MA
C824
0.22u/10V
C825
0.22u/10V
C829
4.7u/16V/NP
C808
330P
C811
330P
C807
330P
R807 75
R808 75
R809 75
L801
3.3uH/9N
L802
3.3uH/9N
L803
3.3uH/9N
+
C835
100u/6.3V/APF
C840
0.68u/16V/TV
DY
DPB
DPR
SCOUT
SYOUT
1
2
3
4
5
6
7
8
IC401
BA7046F
R401
100K
R402
33K
R410
470K
R409
10K
C406
1u/10V/TV
C405
2200P
AGND
AGND
AGND
CSYNC
C403
0.1u
+
C404
47u/16V/APF
AGND
AGND
R403
10K
AGND
C401
1u/10V/TV
R404
100
C402
1000P
AGND
R405
5.6K
AGND
Q401
C2712Y
R408 3.3K
R406
3.3K
R407
0
Q402
A1037KQ
R412
5.6K
AGND
CVIN
+9V200MA
C832
0.22u/16V
C831
0.22u/16V
C830
0.22u/16V
R832
1K
R833
1K
R834
1K
R831
1K
R415
1M
R414
1M
R416
1M
AGND
AGND
AGND
AGND
C409
1u/10V/TV
C411 1u/10V/TV
C412
330P
AGND
V1_V
V2_V
AV1/AV2
R805 1M
V_AV1
C410
0.1u
AGND
1
2
3
4
5
6
7
8
H
H
L
L
IC402
NJM2235M
R417
100
R815
100
AGND
AGND
AGND
DGND
DGND
DGND
R819
0
1
2
FB801
0090CE
1
2
FB802
0090CE
B_IN
1
G_IN
2
R_IN
3
CB_IN
4
Y_IN
5
CR_IN
6
A
GND
7
NC
8
VSUPCUP
9
D
VCC
10
DGND
11
VSUPD
12
SCL
13
SD
A
14
RST
15
DGND
16
DGND
17
YCOE
18
FFIE
19
FFWE
20
FFSR
TW
21
FFRE
22
FFOE
23
CLK20
24
GNDPA
25
VSUPPA
26
LLC2
27
LLC1
28
DVCC
29
DGND
30
Y7
31
Y6
32
Y5
33
Y4
34
DGND
35
DVCC
36
Y3
37
Y2
38
Y1
39
Y0
40
C7
41
C6
42
C5
43
C4
44
D
VCC
45
DGND
46
C3
47
C2
48
C1
49
C0
50
DGND
51
D
VCC
52
FIELD
53
VA
C
T
54
CPULSE
55
HSYNC
56
VSYNC
57
FPD
A
T
58
A
VCC
59
CLK5
60
NC
61
XIN
62
XOUT
63
A
GND
64
AGND
65
VRT
66
I2SEL
67
AGND
68
AVCC
69
VOUT
70
SC
71
SY
72
AV1
73
AV2
74
AV3
75
AVCC
76
AGND
77
VREF
78
OSD_BK
79
AGND
80
IC801
VPC3230D
DGND
DGND
AGND
AGND
AGND
AGND AGND
AGND
AGND
AGND
AGND
TV
AGND
C407
100P
TV
TV
APF
9N3R3KR46N
9N3R3KR46N
9N3R3KR46N
APF
TP802
TP
TP801
TP
L : AV1
H : AV2
1
2
3
4
5
6
7
9
10
12
FL402
C0470CE
AGND
Q405
A1162Y
R437
3.3K
R435
560
R428
470
B-8V1A
R439
0
R481
0
R492
1M
R493
1M
AGND
AGND
R480
0
R496
0
100uH
100uH
20.25MHz
R424
0
R425
0
R422
100
R421
0/1/10W
C413
330P
AGND
R420
0/1/10
R479
0
R490
0
34~35
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