Sharp LL-T1810A (serv.man9) Service Manual ▷ View online
CHAPTER 5. BLOCK DIAGRAM
CN1
DC
Jack
F1
FUSE
CN2
POWER PWB
DUNTK0078UPZZ
MA
IN PWB
DUNTK0076UPZZ
POWER_CTL2
CN3
TP6
POWER_CTL1
12
V
TP1
TP3
TP5
TP4
TP2
TP8
5V
5V
5V
3.
3V
5V
11
V
+11V
ADVCC
LVC
C
MV
CC
BVCC
ANVCC
IC15
PQ
20V
Z1
1
IC6
PQ
20V
Z1
1
IC4
TA78
L05F
IC7
LTC1147
IC5
LTC1147
ALM1
F1
FUSE
F2
FUSE
ALM2
BRT
VR1
BRT
VR2
CN1
CN2
CN3
CN1
IC37
AND
TC7SE
T0
8F
AL
ARM
BRT VR1
BRT VR2
BRIGHT
CONTRAST
(R,G,B)
IC28
D/A
Converter
M623
53
GP
DAC C
S
SCK
SOUT
BL OFF
ME
NU
SELECT
+
-
INPUT
POW SW
SWP
W
B
RUNTK10
06MP
Z
Z
IN
VERTE
R UNI
T
DUNTK53
72ACZZ
IN
VERTE
R UNI
T
DUNTK53
72ACZZ
Ba
ck
-L
igh
t In
v
e
rt
er
Ba
ck
-L
igh
t In
v
e
rt
er
SW1 Menu
SW2 Sele
ct
SW3
+
SW4
-
SW5 In
pu
t
SW6 Pow
e
r
D1
5V
VCC
CN1
USB-CN
4PIN
DA
TA
+
DA
TA
-
X1
4MHz
IC3
Cont
rol
ler
uPD72012
IC1
X6
2FP330
2
+3.3V
CTL[1,
2]
FLG[1,2]
IC2
uPD16857
CN2
USB-
CN
8P
IN
DATA+[1,
2]
DATA-[1,
2]
OUT[1,2]
USB PWB
CPWBN1010MP01
IC35
CLOCK
FS741ZBD
OSC1
50MHz
DSO
751SV
IC26
RE
SET
PST572DM
T
TF
T-LCD
Panel
VC
C
CN4
L_
OSC1
GA
-CS
SCK
SO
UT
RESE
T
CLKA
CLKB
DEA
DEB
RA7~0
GA
7~0
BA
7~0
RB7~0
8
8
8
8
8
8
GB
7~0
BB
7~0
OSC2
80MHz
DSO
751SV
X1
7.98
7MHz
SMD-49
POWER_
C
TL1
P
O
W
E
R_CT
L2
LED G
LED R
IC34
µCO
M
M38
027E
8FP
IC29
RESE
T
PS
T5
72DMT
AL
ARM
OSD CS
SCK
SO
UT
OS
D R
OS
D G
OS
D B
OS
D B
K
OSD HS
OS
D V
S
OSD CK
S_
OSC2
IC31
OS
D
M35
072
IC33
Bu
ffer
TC74VHC
T125
GA CS1
GA CS2
SC
K
SOUT
8
8
8
8
8
8
IC27
Controller
IX0033UP
I23
A/D
Conve
rter
AD94
83
SIN
DSYNC
AD CLK
R2O7~0
R1O7~0
G2
O7
~0
G1
O7
~0
B2
O7~0
B1
O7~0
SG
A10
~0
32
32
32
11
GDQ
31~0
BDQ
31~0
RDQ31~0
IC10
SG
RAM
MB8
1G1
6322
2-8
0
IC9
SG
RAM
MB8
1G1
6322
2-8
0
IC8
SG
RAM
MB8
1G1
6322
2-8
0
SG CLK
CK
E
WE
CS
RA
S
CA
S
DS
F
DQM
3~0
R
G
B
CLKH
CLKL
CLK/2H
CLK/2L
IC25
PL
L
CXA3
106
AQ
I24
TA78
L05F
5V
IC401
Vi
deo
Amp
M
5
2
721SP
BR
IG
HT
CONTRAS
T
(R
)
IC402
Vi
deo
Amp
M
5
2
721SP
IC403
Vi
deo
Amp
M
5
2
721SP
BR
IG
HT
CONTRAS
T
(B
)
BR
IG
HT
CONTRAS
T
(G
)
IC14
Vid
eo
Switch
M52
758FP
RE
D
GREEN
BL
UE
VS
Y
PL
L CK
SCK
SO
UT
G.A HSY
G.A VS
Y
HOLD
ROM CS
ROM SCK
ROM SOUT
ROM SIN
IC30
E2
PROM
NM9
3C
56
IC22
RESE
T
PS
T5
72DMT
IC19
Se
lecto
r
TC74ACT
157
MPU HSY
MPU VSY
VD+ OUT
SG
SL
IC21
Bu
ffer
TC7S0
4F
VD
-
VD
+
IC17
Comp
arator
TL71
2
HD+ OUT
IC38
Mono multi
TC74HC221
IC503
Se
lecto
r
TC7WH157
HS
VS
MPU HPOL
MPU VPOL
HVSL
0
HVSL
1
IC18
Sync
Se
para
to
r
M52
347FP
SO
G
VS
Y
HSY
HSYNC
HSYNC
IC500
Comp
arator
TL71
4CD
IC501
Comp
arator
TL71
4CD
SE
L
HS
YNC
CN5
CN6
VS
YNC
RED
GREEN
BL
UE
HS
YNC
VS
YNC
RED
GREEN
BL
UE
CP INA
D-s
ub PWB
RUNTK1004MPZZ
CN2
CN2
HS
YNC
VS
YNC
RED
GREEN
BL
UE
HS
YNC
VS
YNC
RED
GREEN
BL
UE
CN1
MINI
D-SU
B
15
P
CN1
MINI
D-SU
B
15
P
SCLK
SDA
SCLK
SDA
IC1
DDC1/2B
24
LCS21
A
IC1
DDC1/2B
24
LCS21
A
IC1
PQ
20V
Z1
1
Main PWB 1/8
C415
0.01uF(B)
C448
0.01uF(B)
TP
64
R503
1.8k
J
IC15
PQ
20VZ11
VIN
1
VC
2
VO
3
VREF
4
GND
5
0.1uF
C506
R133
510D
R412
470D
R423
100J
TP
65
IC501
TL714CD
NC
1
IN-
2
IN+
3
NC
4
VCC
8
NC
7
OUT
6
GND
5
FB
10
BLM
41P750S
TP
54
R134
510D
R415
100D
C449
47uF/16V(WX
)
+
R419
2.2k
D
R504
3.3k
J
C144
0.1uF
TP
56
R135
510D
FB
8
330J
R413
100J
C429
0.01uF(B)
C431
0.01uF(B)
R505
1.8k
J
C145
470uF/16V(UR)
+
R136
10J
R124
75D(2125)
1/10W
C445
0.01uF(B)
C430
47uF/16V(WX
)
+
C401
EM
PTY
R137
10J
R125
75D(2125)
1/10W
C446
47uF/16V(WX
)
+
R500
EM
PTY
IC403
M52721S
P
CAP
1
REF.C
2
F.B
.C
3
GND
1
4
V IN
5
VCC1
6
CON
T
7
CLP HLD
8
OSD.C
9
CLP+
IN
10
F/B
-
11
GND
2
12
F/B
+
13
VCC2
14
VCC3
15
V O
U
T
16
GND
3
17
OSD ADJ
18
OSD MIX
19
OSD BLK
20
C419
1uF/50V(WX
)
+
R138
10J
R126
75D(2125)
1/10W
TP
51
C450 0.01uF(B)
C435
1uF/50V(WX
)
+
R506
EM
PTY
C421
10uF/16V(WX
)
+
R139
10J
TP
57
R127
75D(2125)
1/10W
L402
LQ
H1C1R
0
M04
C436
10uF/16V(WX
)
+
C500
0.1uF
R140
10J
IC402
M52721S
P
CAP
1
REF.C
2
F.B
.C
3
GND
1
4
V IN
5
VCC1
6
CON
T
7
CLP HLD
8
OSD.C
9
CLP+
IN
10
F/B
-
11
GND
2
12
F/B
+
13
VCC2
14
VCC3
15
V O
U
T
16
GND
3
17
OSD ADJ
18
OSD MIX
19
OSD BLK
20
R381
47J
(6432)
1W
C131
0.01uF(B)
L403
LQ
H1C1R
0
M04
C437
10uF/16V(WX
)
+
C501
0.1uF
R420
100D
R141
10J
R142
EM
PTY
C136
0.01uF(B)
C405
10uF/16V(WX
)
+
C438
1uF/50V(WP
)
C417
EM
PTY
R130
62J
C132
100uF/16V(WX
)
+
IC14
M52758FP
VCC
1
RIN1
2
VCC
3
NC
4
GIN1
5
VCC
6
BIN1
7
HIN1
8
VIN1
9
GND
10
RIN2
11
GND
12
GIN2
13
NC
14
GND
15
BIN2
16
HIN2
17
VIN2
18
SW
19
GND
20
VO
UT
21
HOU
T
22
NC
23
VCC
24
SO
GO
UT
25
GND
26
BO
UT
27
VCC
28
GND
29
GO
UT
30
VCC
31
NC
32
NC
33
GND
34
ROU
T
35
VCC
36
C404
10uF/16V(WX
)
+
C439 0.01uF(B)
C418
3.3uF/35V(WX
)
+
R131
62J
C133
0.01uF(B)
R509
EM
PTY
C410
2.2uF/35V(WX
)
+
TP
52
C440
47uF/16V(WX
)
+
C420
10uF/16V(WX
)
+
R132
62J
C134
100uF/16V(WX
)
+
C106
100uF/16V(WX
)
+
R411
470J
R425
100D
TP
53
C422
1uF/50V(WP
)
C135
0.01uF(B)
FB
6
BLM
11B750S
D401
EM
PTY
R418
100J
TP
61
C423 0.01uF(B)
C137
100uF/16V(WX
)
+
R128
75D(2125)
1/10W
C402
3.3uF/35V(WX
)
+
C433
EM
PTY
TP
62
C114
47uF/16V(WX
)
+
C424
47uF/16V(WX
)
+
C138
0.01uF(B)
FB
7
BLM
11B750S
C412
47uF/16V(WX
)
+
C434
3.3uF/35V(WX
)
+
TP
63
C425
0.01uF(B)
C115
47uF/16V(WX
)
+
C139
100uF/16V(WX
)
+
R129
75D(2125)
1/10W
R414
2.2k
D
C441
0.01uF(B)
C426
2.2uF/35V(WX
)
+
C116
47uF/16V(WX
)
+
C140
0.01uF(B)
C107
0.01uF(B)
L401
LQ
H1C1R
0
M04
C442
2.2uF/35V(WX
)
+
C427
0.1uF
C408
47uF/16V(WX
)
+
C403
1uF/50V(WX
)
+
IC503
TC7WH157FU
A
1
B
2
Y
3
GND
4
Y
5
SL
6
ST
7
VCC
8
C108
0.01uF(B)
C414
47uF/16V(WX
)
+
C443
0.1uF
R416
470J
C409
0.01uF(B)
R143
2.2k
J
C109
0.01uF(B)
IC401
M52721S
P
CAP
1
REF.C
2
F.B
.C
3
GND
1
4
V IN
5
VCC1
6
CON
T
7
CLP HLD
8
OSD.C
9
CLP+
IN
10
F/B
-
11
GND
2
12
F/B
+
13
VCC2
14
VCC3
15
V O
U
T
16
GND
3
17
OSD ADJ
18
OSD MIX
19
OSD BLK
20
R510
R421
470J
FB
9
330J
C411
0.1uF
D402
EM
PTY
C142
330uF/25V(UR)
+
R148
C110
0.01uF(B)
R511
470J
x2
D403
EM
PTY
R417
470D
CN5
B12B
-Z
R-3.4
1
2
3
4
5
6
7
8
9
10
11
12
C143
10uF/16V(WX
)
+
R149
C111
0.01uF(B)
C416
0.01uF(B)
R422
470D
CN6
B12B
-Z
R-3.4
1
2
3
4
5
6
7
8
9
10
11
12
C428
47uF/16V(WX
)
+
L17
CDR74B/100uH
R150
C112
0.01uF(B)
C413
0.01uF(B)
R424
2.2k
D
C432
0.01uF(B)
C407 0.01uF(B)
R145
1k
D
R151
3.9k
J X
4
C141
47uF/16V(WX
)
+
C130
100uF/16V(WX
)
+
C444
47uF/16V(WX
)
+
R502
3.3k
J
TP
66
R146
39k
D
R501
0
TP
8
C406
1uF/50V(WP
)
C447
0.01uF(B)
TP
67
IC500
TL714CD
NC
1
IN-
2
IN+
3
NC
4
VCC
8
NC
7
OUT
6
GND
5
R147
3.3k
D
TP
55
C113
0.01uF(B)
11V
MV
C
C
MV
C
C
ANVCC
ANVCC
ANVCC
ANVCC
12V
CON
T
RAS
T
_R
HSY
VS
Y
SE
L
SO
G
P
O
W
E
R_
CT
L
1
RED
BRIGHT
CP_IN
CP_INA
CON
T
RAS
T
_G
BRIGHT
CP_IN
CP_INA
CON
T
RAS
T
_B
BRIGHT
BLUE
G
R
EEN
SE
L
HSY
CP_IN
CP_INA
H:NOR
M
AL
L:PO
WE
R SAVE
CHANGE:
FB8,FB9 -> 330J
CHANGE: R506,R509 ->
EMPTY
IC500,IC501 ->
T
L714CD
R510,R511 ->
470J
CHAPTER 6. CIRCUIT DIAGRAM
Main PWB 2/8
C171
0.47uF/50V
(W
X)
+
R174
EMP
T
Y
R171
0
R194
EMP
T
Y
R185
4.7k
J
R170
43k
D
R522
0
IC38
TC74HC221AF
1A
1
1B
2
1C
L
R
3
1Q
4
2Q
5
2Cx
6
2Rx/
Cx
7
GND
8
2A
9
2B
10
2CLR
11
2Q
12
1Q
13
1Cx
14
1Rx/
Cx
15
VCC
16
R184
3.3KJ
C161
4.7uF/16V(W
P)
R183
EMP
T
Y
D7
EMP
T
Y
(1
SS193)
C160
R122
100J
C166
0.1uF
Q7
2SC2712Y
C504
1200pF(B)
R187
4.7k
J
Q8
DTC143EE
D6
1SS
193
R186
10k
J
C159
220pF(CH)
IC18
M52347
F
P
H.STA
1
V.S
T
A
2
CLP.S
W
3
G.IN
4
GND
5
C/H IN
6
C/H DET
7
V IN
8
V DE
T
9
V T
.G
10
V S
/S IN
11
V S
/S O
U
T
12
VD+
OUT
13
HD+ OUT
14
HD- O
U
T
15
VCC
16
CLP OUT
17
H POL
18
V P
O
L
19
CLP TMG
20
R169
4.7k
J
IC17
TL712CPS
NC
1
IN-
2
IN+
3
OE
4
VCC
8
OUT
-
7
OUT
+
6
GND
5
R168
EMP
T
Y
IC19
TC74ACT157F
1A
2
1B
3
2A
5
2B
6
3A
11
3B
10
4A
14
4B
13
A/B
1
G
15
1Y
4
2Y
7
3Y
9
4Y
12
VCC
16
GND
8
R167
EMP
T
Y
C505
0.1uF
IC22
PS
T
572DM
T
VC
1
OUT
3
G
2
R181
510D
R520
E
M
PT
Y(
R
1
60
8
)
R508
4.7k
J
C165
EMP
T
Y
(4
.7uF
/16V(WP))
C169
47uF/16V(W
X)
+
R180
1k
D
R166
56k
D
C168
0.1uF
R195
4.7k
J
C157
0.01uF(B)
R193
100J
X3
R182
EMP
T
Y
C156 E
M
PT
Y(
C
1
60
8
)
R192
Q6
EMP
T
Y
(2
S
C2712)
R191
C164 4.7uF/16V(W
P) x2
R165
E
M
PT
Y(
R
1
60
8
)
C167
0.1uF
R179
4.7k
J
R164
E
M
PT
Y(
R
1
60
8
)
R190
EMP
T
Y
R178
EMP
T
Y
R163
18k
D
R189
EMP
T
Y
C163
0.1uF
R162
3k
D
R523
510J
R188
EMP
T
Y
R176
4.7k
J
C158
100pF(CH)
IC21
TC7S04F
24
5
3
LD7
C173
1uF/50V(WP
)
IC20
EMP
T
Y
2
4
5
3
LD6
R173
2.2KJ
R521
E
M
PT
Y(
R
1
60
8
)
C170
EMP
T
Y
LD5
R172
4.3k
D
C172
10uF/16V(W
X)
+
R175
EMP
T
Y
C162
0.01uF(B)
VD_P
LUS
VS
HS
VD_MI
N
U
S
S.S
L
=1 H/V
O
U
T S.S
L
=0 SE
P.IC OUT
BV
C
C
BV
C
C
BV
C
C
BV
C
C
BV
C
C
BV
C
C
BV
C
C
BV
C
C
BV
C
C
VCC
BV
C
C
BV
C
C
BV
C
C
BV
C
C
BV
C
C
HSY
VS
Y
MPU_HP
O
L
MPU_V
P
O
L
MPU_HS
Y
MPU_V
S
Y
GA
_
H
S
Y
G
A
_VSY
HVSL
1
HOLD
SO
G
CP_INA
SG
SL
HVSL
O
NEW
PAD:
R520,R521 E
M
PTY
NEW
PAD:
R522 0J
, R523 510J
CHANGE: Q6 -> EMP
T
Y
D7 -> E
M
PTY
C156, C165 ->
EMPTY
R164, R165 ->
EMPTY
Main PWB 3/8
C196
100pF(CH
)
C186
0.1uF
R202
0
C176
20SM
1
M
+
C197
1200pF(B)
C187
0.1uF
IC23
AD9483
GND
1
GN
D
100
GND
30
VDD
31
GN
D
50
VDD
51
GND
80
GN
D
81
ENCODE
2
ENCODE
3
DS
4
DS
5
GND
6
GND
7
DCO
8
DCO
9
GND
10
VDD
11
BDB7
12
BDB6
13
BDB5
14
BDB4
15
BDB3
16
BDB2
17
BDB1
18
BDB0
19
GND
20
VDD
21
BDA7
22
BDA6
23
BDA5
24
BDA4
25
BDA3
26
BDA2
27
BDA1
28
BDA0
29
GD
B7
32
GD
B6
33
GD
B5
34
GD
B4
35
GD
B3
36
GD
B2
37
GD
B1
38
GD
B0
39
GN
D
40
VDD
41
GD
A7
42
GD
A6
43
GD
A5
44
GD
A4
45
GD
A3
46
GD
A2
47
GD
A1
48
GD
A0
49
RDB7
52
RDB6
53
RDB5
54
RDB4
55
RDB3
56
RDB2
57
RDB1
58
RDB0
59
GND
60
VDD
61
RDA7
62
RDA6
63
RDA5
64
RDA4
65
RDA3
66
RDA2
67
RDA1
68
RDA0
69
GND
70
VDD
71
NC
72
GND
73
OMS
74
I/P
75
PD
76
GND
77
GND
78
VCC
79
VCC
82
VCC
83
R AIN
84
R AIN
85
R REF IN
86
G A
IN
87
G A
IN
88
G REF
IN
89
B AIN
90
B A
IN
91
B REF IN
92
VCC
93
VCC
94
GN
D
95
GN
D
96
REF OUT
97
VCC
98
VCC
99
C177
0.1uF
R224
EMP
T
Y
C188
0.1uF
C178
20SM
1
M
+
R226
47J
(3225
)
1/4W
C189
0.1uF
C179
0.1uF
C259
0.1uF
C190
0.1uF
R196
EMP
T
Y
C182
0.1uF
C198
0.1uF
L100
L
Q
H1
C1
R
0
M
0
4
C191
0.1uF
C183
0.1uF
C199
C214
0.1uF
RA1
8
1
2
3
4
5
6
7
6
7
C201
C192
0.1uF
RA2
33J
x4 x
2
8
1
2
3
4
5
6
7
6
7
C202
R197
EMP
T
Y
C193
0.1uF
RA3
8
1
2
3
4
5
6
7
6
7
C204
C194
0.1uF
RA4
33J
x4 x
2
8
1
2
3
4
5
6
7
6
7
C206
C195
0.1uF
RA5
8
1
2
3
4
5
6
7
C209
R213
330J
R198
EMP
T
Y
RA6
33J
x4 x
2
8
1
2
3
45
6
7
C210
0.1uF X12
R214
330J
RA7
8
1
2
3
45
6
7
C212
0.1uF
R215
330J
RA8
33J
x4 x
2
8
1
2
3
45
6
7
C213
0.1uF
R216
330J
RA9
8
1
2
3
4
5
6
7
6
7
R219
0
R217
1.6k
D
RA10
8
1
2
3
4
5
6
7
6
7
C211
0.33uF(B)
<3216
>
RA11
8
1
2
3
4
5
6
7
6
7
R200
0
R220
RA12
33J
x4 x
4
8
1
2
3
4
5
6
7
6
7
R201
0
R205
EMP
T
Y
R221
R199
EMP
T
Y
C181
47uF/16V(WX
)
+
R207
EMP
T
Y
R222
R210
R204
0
C175
0.1uF
R223
0 x
4
R211
0 x
3
R206
0
C200
R225
47J
(3225
)
1/4W
R212
R208
0
C203
R227
3.3k
D
IC24
TA78L05F
IN
3
OU
T
1
GND
2
R203
EMP
T
Y
C205
IC25
CXA31
06AQ
IOVCC
1
IOGND
2
VCOH
3
VCOL
4
VCO
5
HOLD
6
SYN
CH
7
SYN
CL
8
SYN
C
9
SEN
ABLE
10
SCLK
11
SDATA
12
TLO
A
D
13
CS
14
SE
R
O
UT
15
DIVOUT
16
UNLO
C
K
17
DVCC
18
DG
ND
19
CLK/2N
20
CLK/2
21
CLKN
22
CLK
23
DSYNC
24
TTLGND
25
TTLVCC
26
IOGN
D
27
PEC
LV
CC
28
CLK/2L
29
CLK/2H
30
CLKL
31
CLKH
32
DSYNCL
33
DSYNCH
34
VBB
35
PEC
LV
CC
36
IOG
N
D
37
IOVCC
38
PLLV
CC
39
PLLG
ND
40
VCO
V
CC
41
VCO
G
ND
42
VCO
H
GND
43
IREF
44
RC2
45
RC1
46
IRGN
D
47
IRVCC
48
C184
10uF/16V(WX
)
+
C180
47uF/16V
(W
X
)
+
C207
R218
33J
C185
10uF/16V(WX
)
+
R209
33J
C208
G1
O
0
G1
O
1
G1
O
2
G1
O
3
G1
O
4
G1
O
5
G1
O
6
G1
O
7
G2
O
0
G2
O
1
G2
O
2
G2
O
3
G2
O
4
G2
O
5
G2
O
6
G2
O
7
R1O0
B2O7
R1O1
B2O6
R1O2
B2O5
R1O3
B2O4
R1O4
B2O3
R1O5
B2O2
R1O6
B2O1
R1O7
B2O0
R2O0
B1O7
R2O1
B1O6
R2O2
B1O5
R2O3
B1O4
R2O4
B1O3
R2O5
B1O2
R2O6
B1O1
R2O7
B1O0
ADVCC
LVCC
11V
B1O
[7:0]
AD_CLKO
U
T
DSYNC
RED
GR
EE
N
BLUE
HO
LD
GA
_
H
S
Y
PLL_CS
SCK
SO
UT
R1O[
7:0]
R2O[
7:0]
B2O
[7:0]
G
1
O[7:0]
G
2
O[7:0]
CHANG
E
:
R196,R197,R198 ->
EMPTY
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