Sharp LL-T2020 (serv.man12) Service Manual ▷ View online
LL-T2020
BLOCK DIAGRAM
6 – 1
P
o
wer
Unit
Scaling C
h
ip
iLS-L0
0
1
IC502
LV
D
S
Transm
itter
IC701
CT
L
EEP
R
O
M
IC605
AD
C
A
D9888-170
IC402
DVI
-
I
CN201
T
MDS
S
II
161B
IC202
MPU
IC602
R
GB1
RX
D
TX
D
SDA
SCL
SDA
SCL
HS
1
SDA/SCL
SDA/SCL
Inverto
r
Unit
12V
B
RT_VR
IHS/IV
S
AS
IC
AUTO
&
A
G
C
IC404
HI
N
1
DVI
-
I
CN101
T
MDS
S
II
161B
IC102
HI
N
2
VIN
2
VIN
1
Compar
ator
IC301
Buffer
IC302
VS
1
SDA
SCL
Swit
c
h
IC101
HS
2
VS
2
A
/D
-DDC
IC103
SDA
SCL
Reset
IC603
X601
DA
C
IC604
LCDV
SW P
W
B
Power/Inpu
t/Menu/Selct/
/
/LE
D
KE
Y
Re
g
ulator
PQ1C
Z21H2Z
IC802
2
.5V
5V
3
.3V
V33
PV5
POWER_CTL
Log
ic
IC504
VS
CN701
CN601
CN802
CN801
SW101
I
IHS
IVS
X501
1
0
MHz
PD
O
1
S
D
ET1
PD1
IHS/IV
S
ID[0..4
7
]
PD
O
2
S
D
ET2
PD2
ID[0..4
7
]
IACT
ID[0..4
7
]
IHS/IV
S
IC
K(B)
IC
K(B)
COMSYN
IC
K(B)
C
lock
G
e
nerator
IC501
DEN
DCLK
OD[0..47]
LCD Pan
e
l
Lamp
Lamp
D
V25
AV
5
DV
5
D
V
5
A
PV33/A
V33/DV33/
O
V
33/AD33
LV33
3
.3V
Regul
ator LM317
IC601
3
.3V
12V
BL_EN
RX
USB PW
B
IC3
u
P
D72012
X1
4MH
z
CN1
USB-
C
N
4PIN
CN2
USB-
C
N
8PIN
IC2
u
P
D16857
IC1
X
6
2
FP3302
D
A
TA+
D
A
TA-
DATA+[1,2
]
DATA-[1,2
]
OUT[1
,
2
]
CTL[1,2
]
FLG[1,
2
]
3
.3V
5V
H
R
EF1
H
R
EF2
RX
R
GB2
Regul
ator LM317
IC403
Regul
ator LM317
IC104/203/401
MAIN P
W
B
A
/
D
-DDC
IC201
DATAX
STROBE_X
SCLK_X
XCLDWN
R
e
g
ulator
P
Q
1CY1032Z
IC801
R
e
g
ulator
P
Q
20WZ11
IC803
12V
12V
CN803
5V
ACT
CHAPTER
6. B
L
OCK DIAGRAM
LL-T2020
CIRCUIT DIAGRAM
7 – 1
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
1/9
CHA
PT
ER
7.
CIR
CUIT
DIAGRAM
POW
E
R SUPPLY
PW
B
LL-T2020
CIRCUIT DIAGRAM
7 – 2
INPUT 2
BANKSEL
L : BANK0
H :
BANK1
BANK0 : ANALOG
BANK1 : DIGITAL
ID1
ID34
ID21
ID3
ID14
ID46
ID15
ID37
ID7
ID13
ID31
ID10
ID32
ID29
ID36
ID20
ID5
ID8
ID43
ID11
ID47
ID2
ID44
ID4
ID38
ID0
ID30
ID22
ID42
ID27
ID16
ID39
ID18
ID23
ID25
ID19
ID41
ID17
ID40
ID45
ID33
ID28
ID35
ID12
ID26
ID9
ID24
ID6
DV5
OV33_1
AV33_1
DV5
PV33_1
DV33_1
AV33_2
DV5
DV5A
PV33_2
PV33_1
AV33_1
DV5
DV5
R111
0J
D103
UDZS5.6B
Q103
DTC143EE
23
1
R124
510J
C112
0.1uF
C111
100pF
RA106
33J x4
R101
4.7kJ
R115
33J
LDS107
RA112
33J x4
LD112
C102
0.1uF
R112
47kJ
FB101
BLM18PG600SN1
Q102
IMH4A
1
2
3
4
5
6
R128
EMPTY
R104
75J
C114
0.1uF
C117
0.1uF
R123
4.7kJ
IC104
LM31
7EMP
1
2
3
ADJ
OUTPUT
INPUT
C101
0.1uF
R126
360F
C123
10uF
R133
EMPTY
LDS108
D101
RB715F
2
3
1
IC103
BU9882F
1
2
3
4
5
6
78
9
10
11
12
13
14
SCL_PC0
SDA_PC0
NC
SCL_PC1
SDA_PC1
NC
GND
SDA_MON
SCL_MON
DDCENA
BANKSEL
DUAL_PCB
WPB
VCC
C120
0.1uF
LD101
LDS104
RA103
33J x4
C127
10uF
RA102
33J x4
C110
0.1uF
R120
4.7kJ
RA109
33J x4
LD113
C124
10uF
R116
33J
R108
47kJ
R119
4.7kJ
LDS109
SW101
SSSS916900
1
2
3
R118
4.7kJ
FB102
BLM18PG600SN1
R110
EMPTY
RA108
33J x4
R106
75J
CN101
SD-74320-1004
1
2
4
5
6
7
9
10
12
13
16
17
18
20
21
23
24
3
15
19
22
11
8
14
C1
C2
C3
C4
C5
RX2-
RX2+
RX4-
RX4+
SCL
SDA
RX1-
RX1+
RX3-
RX3+
HP
RX0-
RX0+
RX5-
RX5+
RXC+
RXC-
GND
GND
GND
GND
GND
VS
5V
ARED
AGREEN
ABLUE
AHSY
ANGND
R117
4.7kJ
L101
NLC322522T-220K
R129
0J
R132
0J
R114
47kJ
C126
10uF
R103
10kJ
R125
220F
R102
47kJ
C107
0.1uF
LD110
FB103
BLM18PG600SN1
R107
47kJ
RA105
33J x4
IC101
FST3257
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
S
1B1
1B2
1A
2B1
2B2
2A
GND
3A
3B2
3B1
4A
4B2
4B1
OE
VCC
R109
0J
R131
EMPTY
R105
75J
RA111
33J x4
C125
10uF
LDS103
R130
0J
R122
33J
C105
0.1uF
C106
0.1uF
D102
UDZS5.6B
RA104
33J x4
LD111
C116
10uF(3216)
C121
EMPTY
RA110
33J x4
R127
47kJ
LDS102
C113
100pF
IC
102
T
H
C63DV161
57
58
58
49
50
51
52
53
54
55
56
52
53
54
55
56
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
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
OVCC
OGND
QO0
QO1
QO2
QO3
QO4
QO5
QO6
QO7
QO3
QO4
QO5
QO6
QO7
QO8
QO9
QO9
QO10
QO11
QO12
QO13
QO14
QO15
QO11
QO12
QO13
QO14
QO15
VCC
GND
QO16
QO17
QO18
QO19
QO20
QO21
QO22
QO17
QO18
QO19
QO20
QO21
QO22
OGND
QO23
OVCC
AGND
RX2+
RX2-
AVCC
AGND
AVCC
RX1+
RX1-
AGND
AVCC
AGND
RX0+
RX0-
AGND
RXC+
RXC-
AVCC
EXT_RES
PVCC
PGND
RESERVED
OCK_INV
S_D
PD
ST
PIXS/M_S
GND
VCC
STAG_OUT/SYNC
SCDT
PDO
QE0
QE1
QE2
QE3
QE4
QE5
QE6
QE7
OVCC
OGND
QE8
QE9
QE10
QE11
QE12
QE13
QE14
QE15
OGND
OVCC
QE16
QE17
QE18
QE19
QE20
QE21
QE22
QE23
VCC
GND
CTL1
CTL2
CTL3
OVCC
ODCK
OGND
DE
VSYNC
HSYNC
L102
NLC322522T-220K
RA101
33J x4
LDS105
Q101
DTC143EE
23
1
C104
0.1uF
C119
0.1uF
R121
33J
C115
100pF
C108
0.1uF
C118
100pF
+
C122
EMPTY(22uF/16V(WT)
)
LDS106
C109
0.1uF
RA107
33J x4
C103
0.1uF
R113
4.7kJ
MD1
BLUE1
IHS
TMDS_PDO1
TXD
IVS
HS1
TMDS_PD1
RXD
VS1
ICK
TMDS_SD
E
T
1
RED1
ID[0..47]
INP1B
GREEN1
IACT
INP1A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
2/9
D
VI1
LL-T2020
CIRCUIT DIAGRAM
7 – 3
INPUT 1
BANK0 : ANALOG
BANK1 : DIGITAL
BANKSEL
L : BANK0
H :
BANK1
ID8
ID21
ID46
ID43
ID34
ID13
ID22
ID47
ID19
ID30
ID26
ID12
ID6
ID17
ID11
ID20
ID42
ID10
ID16
ID29
ID32
ID27
ID15
ID24
ID3
ID5
ID18
ID0
ID31
ID1
ID44
ID38
ID2
ID35
ID28
ID39
ID37
ID25
ID45
ID9
ID4
ID40
ID33
ID41
ID7
ID36
ID14
ID23
OV33_2
OV33_2
DV33_2
PV33_2
DV33_2
OV33_1
AV33_2
DV33_1
DV5
DV5A
DV5
DV5
DV5
Q203
DTC143EE
23
1
D203
UDZS5.6B
LDS209
C222
10uF
RA212
33J x4
R201
4.7kJ
+
C221
EMPTY(22uF/16V(WT)
)
R204
75J
IC20
2
T
H
C
63DV161
57
58
58
49
50
51
52
53
54
55
56
52
53
54
55
56
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
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
OVCC
OGND
QO0
QO1
QO2
QO3
QO4
QO5
QO6
QO7
QO3
QO4
QO5
QO6
QO7
QO8
QO9
QO9
QO10
QO11
QO12
QO13
QO14
QO15
QO11
QO12
QO13
QO14
QO15
VCC
GND
QO16
QO17
QO18
QO19
QO20
QO21
QO22
QO17
QO18
QO19
QO20
QO21
QO22
OGND
QO23
OVCC
AGND
RX2+
RX2-
AVCC
AGND
AVCC
RX1+
RX1-
AGND
AVCC
AGND
RX0+
RX0-
AGND
RXC+
RXC-
AVCC
EXT_RES
PVCC
PGND
RESERVED
OCK_INV
S_D
PD
ST
PIXS/M_S
GND
VCC
STAG_OUT/SYNC
SCDT
PDO
QE0
QE1
QE2
QE3
QE4
QE5
QE6
QE7
OVCC
OGND
QE8
QE9
QE10
QE11
QE12
QE13
QE14
QE15
OGND
OVCC
QE16
QE17
QE18
QE19
QE20
QE21
QE22
QE23
VCC
GND
CTL1
CTL2
CTL3
OVCC
ODCK
OGND
DE
VSYNC
HSYNC
R212
47kJ
R205
75J
C211
0.1uF
R220
220F
C223
10uF
R223
EMPTY
Q202
IMH4A
1
2
3
4
5
6
C215
0.1uF
FB205
BLM18PG600SN1
R216
33J
R211
4.7kJ
LDS203
C202
0.1uF
LD201
IC201
BU9882F
1
2
3
4
5
6
78
9
10
11
12
13
14
SCL_PC0
SDA_PC0
NC
SCL_PC1
SDA_PC1
NC
GND
SDA_MON
SCL_MON
DDCENA
BANKSEL
DUAL_PCB
WPB
VCC
C201
0.1uF
C217
0.1uF
LD211
R218
47kJ
C225
10uF
R210
4.7kJ
RA206
33J x4
C206
0.1uF
R222
47kJ
LDS204
R209
4.7kJ
RA203
33J x4
FB201
BLM18PG600SN1
RA211
33J x4
C224
10uF
RA209
33J x4
R208
4.7kJ
R219
510J
R207
4.7kJ
R224
0J
LD212
C212
100pF
LDS205
C226
10uF
R202
10kJ
RA205
33J x4
C219
0.1uF
RA210
33J x4
RA201
33J x4
R215
33J
LDS202
C213
0.1uF
RA207
33J x4
R226
EMPTY
LDS206
R227
0J
C216
100pF
R225
0J
FB203
BLM18PG600SN1
D202
UDZS5.6B
R203
75J
LD210
IC203
LM31
7EMP
1
2
3
ADJ
OUTPUT
INPUT
C209
10uF(3216)
LDS207
RA204
33J x4
LD213
RA208
33J x4
R214
33J
CN201
SD-74320-100
4
1
2
4
5
6
7
9
10
12
13
16
17
18
20
21
23
24
3
15
19
22
11
8
14
C1
C2
C3
C4
C5
RX2-
RX2+
RX4-
RX4+
SCL
SDA
RX1-
RX1+
RX3-
RX3+
HP
RX0-
RX0+
RX5-
RX5+
RXC+
RXC-
GND
GND
GND
GND
GND
VS
5V
ARED
AGREEN
ABLUE
AHSY
ANGND
C208
0.1uF
Q201
DTC143EE
23
1
R221
360F
C205
0.1uF
C210
0.1uF
C204
0.1uF
C203
0.1uF
LDS208
D201
RB715F
2
3
1
FB204
BLM18PG600SN1
R206
EMPTY
RA202
33J x4
C218
100pF
C207
0.1uF
R228
EMPTY
R213
4.7kJ
C220
EMPTY
FB202
BLM18PG600SN1
R217
33J
C214
100pF
HS2
VS2
IVS
RED2
TMDS_PDO
2
TMDS_PD2
IACT
ICK
TMDS_S
DET2
GREEN2
BLUE2
IHS
ID[0..47]
INP2A
INP2B
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
3/9
D
VI2
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