Read Sharp LL-T18A1 Service Manual online
LL-T18A1
CIRCUIT DIAGRAM
6 – 3
3/5
A
B
C
D
8765
4
3
2
1
1
2
3
4
5
6
7
8
D
C
B
A
1%
32-Pin PLCC Socket
FLASH/ Prom
-Jet Socket
RS232 Debug Port
NVRAM
7--U
P
6--DOW
N
3--MEN
U
2--SOFTPWR
Rese
t
Circuit
R03 PCB
SCL
GPIO
4
/UART_DI
GPIO
5
/UART_DO
/RO
M
_WE
3.3V_D
V
I
RMADDR12
ISP_SDA
RMADDR13
RMADDR8
RMADDR14
RMADDR14
RMADDR7
ISP_SCL
GPIO
7
RMADDR3
GPIO
2
RMADDR[0..15]
RMADDR13
RMADDR0
SCL
RMADDR2
GPIO
6
RMADDR12
RMADDR10
RMADDR7
RMADDR8
RMADDR9
RMADDR14
RMADDR3
SDA
RMADDR11
RMADDR9
SDA
RMADDR1
2.5V
_
R
XPL
3.3V_DDDS
3.3V_RGB
3.3V_RDDS
RMADDR10
RMADDR8
RMADDR6
RMADDR4
GPIO
5
/UART_DO
RMADDR2
RMADDR11
/RO
M
_WE
RMADDR0
ROM_O
E
n
RMADDR4
RMADDR1
GPIO
4
/UART_DI
RMADDR15
BANK0
RMADDR5
BANK0
GPIO
3
RMADDR6
RMADDR5
RMADDR9
3.3V_SDDS
RMADDR15
DVS
DE
N
TCON_OCLK
DHS
FSYNC
TCLK
/RESET
RMDATA
6
RMDATA
7
RMDATA
5
RMDATA3
RMDATA
0
RMDATA
3
RMDATA4
RMDATA[0..
7]
RMDATA
2
RMDATA0
RMDATA6
RMDATA2
RMDATA7
RMDATA
4
RMDATA
1
RMDATA5
RMDATA1
LVDS
_EN
EB
7
EB
6
EB
5
EB
4
EB
3
EB
2
EB
1
EB
0
EG
7
EG
6
EG
5
EG
4
EG
3
EG
2
EG
1
EG
0
OB
7
OB
6
OB
5
OB
4
OB
3
OB
2
OB
1
OB
0
OG
2
OG
0
OG
5
OG
4
OG
6
OG
7
OG
1
OG
3
OR3
OR2
OR1
OR6
OR4
OR7
OR5
OR0
ER1
ER0
ER7
ER5
ER4
ER6
ER3
ER2
RED-
2
GREEN+
2
HS
2
ISP_SDA
2
ISP_SCL
2
RX2-
3
RXC+
3
RX0
+
3
RXC-
3
VS
2
DDC_SCL_D
3
GPIO
6
5
GPIO
7
5
BRI_PW
M
5
GPIO
3
5
PBIA
S
5
PP
WR
6
RX2
+
3
RX0-
3
BLU
E
+
2
RED+
2
RX1-
3
GREEN-
2
RX1
+
3
BLUE
-
2
DVS
5
DE
N
5
DISP_CL
K
5
DHS
5
O
R
[0
..
7
]
5
OB[0
..
7]
5
OG[
0
..7]
5
EG[0..7]
5
EB[0..7
]
5
GPIO
2
5
SELECT
5
DDC_SDA_
D
3
LED_RE
D
5
LVDS
_EN
5
HOT_K
E
Y
5
ER[0..7]
5
LED_GRE
E
N
5
3.3V_D
VI
+5
V
+5
V
+5
V
+5
V
+3
.3
V
+5
V
+2
.5
V
+3
.3
V
+3
.3
V
+3
.3
V
+3
.3
V
+3
.3
V
+3
.3
V
+5
V
+2
.5
V
+3
.3
V
+3
.3
V
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
+3
.3
V
+3
.3
V
GND
GND
GND
GND
GND
RP14
33
8
1
7
2
6
3
5
4
R47
3
3
R163
10
K
U7
AT49HF/F010-45J
C
3
29
28
4
25
23
26
27
5
6
7
8
9
10
11
12
21
20
19
18
17
15
14
13
24
31
32
1
16
2
30
22
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
OE
WE
VCC
NC
GND
A16
NC/A
1
7
CE
C51
0.1
u
F
C34
0.1
u
F
+
C57
10uF
R152
4.7K
RP3
3
3
8
1
7
2
6
3
5
4
FB5
R52
2.7K
RP4
3
3
8
1
7
2
6
3
5
4
C18
0.
1uF
C35
0.1
u
F
Q1
0
MM
BT3904L
C
B
E
R57
1K
R160
0
+
C133
10uF/16
V
C50
0.1
u
F
C17
0.1
u
F
Int_Te
st
U4
gm51
20
PQFP
208C
171
170
167
166
163
162
179
180
185
186
191
192
151
152
40
41
42
43
44
45
46
47
49
50
51
52
118
115
117
116
195
194
174
120
121
122
123
124
125
126
127
128
206
207
208
1
205
204
5
4
6
7
48
39
201
25
24
23
22
19
18
17
16
15
8
35
34
33
32
31
30
29
28
9
10
14
12
13
11
36
155
153
165
169
161
158
157
178
2
20
53
67
81
97
111
129
26
88
134
203
88
134
203
176
113
114
175
182
184
188
190
197
198
199
150
149
148
146
144
141
139
145
140
137
136
3
21
38
54
68
82
98
112
130
89
133
202
135
135
156
154
177
183
189
147
143
138
200
159
61
62
65
66
69
70
71
72
94
93
75
76
77
78
79
80
74
73
85
86
87
90
91
92
84
83
95
96
99
100
101
102
64
63
105
106
107
108
109
110
104
103
119
27
131
142
132
60
59
58
57
56
55
37
160
164
168
172
173
181
187
193
196
RED+
RED-
GREEN+
GREEN-
BLUE
+
BLUE
-
RX2+
RX2-
RX1+
RX1-
RX0+
RX0-
XTAL
TCLK
GPIO
0
/PWM0
GPIO
1
/PWM1
GPIO
2
/PWM2
GPIO
3
/TIMER1
GPIO
4
/UART_D1
GPIO
5
/UART_D0
GPIO
6
/EXTCLK
GPIO
7
GPIO
1
0
/TCO
N_ROE3
GPIO
1
1
GPIO
1
2
GPIO
1
3
DCLK/TCON
_
O
C
L
K
DEN/TCON_ECLK
DVS/TCON
_
F
SYNC
DHS/TCON_LP
RXC-
RXC+
REXT
TCON_OPOL
TCON_OIN
V
TCON_ESP
TCON_EPOL
TCON_EINV
TCON_RSP2
TCON_RSP3
TCON_RCL
K
TCON_ROE
GPIO
2
0
/HDATA
3
GPIO
1
9
/HDATA
2
GPIO
1
8
/HDATA
1
GPIO
1
7
/HDATA
0
GPIO
1
6
/HFS
GPIO
2
2
/HCL
K
RESETn
GPIO
2
1
/I
RQn
DDC_SC
L
DDC_SD
A
GPIO
9
/TCON_ROE2
GPIO
8
/IRQI
Nn
CLKOUT
ROM_ADDR0
ROM_ADDR1
ROM_ADDR2
ROM_ADDR3
ROM_ADDR4
ROM_ADDR5
ROM_ADDR6
ROM_ADDR7
ROM_ADDR8
ROM_ADDR1
5
ROM_DATA0
ROM_DATA1
ROM_DATA2
ROM_DATA3
ROM_DATA4
ROM_DATA5
ROM_DATA6
ROM_DATA7
ROM_ADDR1
4
ROM_ADDR1
3
ROM_ADDR9
ROM_ADDR1
1
ROM_ADDR1
0
ROM_ADDR1
2
ROM_OE
n
VDD1_ADC_2.5
VDD2_ADC_2.5
AGND_GREEN
AGND_RED
AGND_BLUE
AGND_ADC
SGND_ADC
AGND_RX2
RVDD
RVDD
RVDD
RVDD
RVDD
RVDD
RVDD
RVDD
CVDD_2.5
CVDD_2.5
CVDD_2.5
CVDD_2.5
CVDD_2.5
CVDD_2.5
CVDD_2.5
VDD_RX2_2.5
PPWR
PBIAS
AGND_IM
B
VDD_RX1_2.5
AGND_RX1
VDD_RX0_2.5
AGND_RX0
AGND_RXC
AGND_RXPLL
VDD_RXPLL_2.
5
AVDD_RPLL
AVSS_RPLL
VDD_DPLL_3.3
AVDD_SDDS
VDD_SDDS_3.3
AVDD_DDDS
VDD_DDDS_3.3
AVSS_SDDS
AVSS_DDDS
HSYNC
VSYNC
RVSS
RVSS
RVSS
RVSS
RVSS
RVSS
RVSS
RVSS
RVSS
CVSS
CVSS
CVSS
CVSS
CVSS
GND1_ADC
GND2_ADC
GND_RX2
GND_RX1
GND_RX0
VSS_DPLL
VSS_SDDS
VSS_DDDS
N/C
ADC_TEST
PD6/ER
6
PD7/ER
7
PD10/EG
2
PD11/EG
3
PD12/EG
4
PD13/EG
5
PD14/EG
6
PD15/EG
7
PD33/OG1
PD32/OG0
PD18/EB2
PD19/EB3
PD20/EB4
PD21/EB5
PD22/EB6
PD23/EB7
PD17/EB1
PD16/EB0
PD26/OR
2
PD27/OR
3
PD28/OR
4
PD29/OR
5
PD30/OR
6
PD31/OR
7
PD25/OR
1
PD24/OR
0
PD34/OG2
PD35/OG3
PD36/OG4
PD37/OG5
PD38/OG6
PD39/OG7
PD9/EG
1
PD8/EG
0
PD42/OB
2
PD43/OB
3
PD44/OB
4
PD45/OB
5
PD46/OB
6
PD47/OB
7
PD41/OB
1
PD40/OB
0
TCON_OSP
CVSS
Reserved
N/C
Reserved
PD5/ER
5
PD4/ER
4
PD3/ER
3
PD2/ER
2
PD1/ER
1
PD0/ER
0
RVDD
AVDD_AD
C
AVDD_BLUE
AVDD_GREEN
AVDD_RE
D
AVDD_IM
B
AVDD_RX
2
AVDD_RX
1
AVDD_RX
0
AVDD_RX
C
R162
4.7K
C52
0.1
u
F
R164
5.6K
+
C13
10uF/16
V
R165
10
K
FB2
RP5
3
3
8
1
7
2
6
3
5
4
C53
0.1
u
F
Q9
MM
BT3906
L
B
E
C
+
C14
10uF/16V
R51
22
K
R53
4.7K/NC
C36
0.1
u
F
U2E
74L
V
T14
SO
14
11
10
14
7
U2F
74L
V
T14
SO1
4
13
12
14
7
C60
0.1
u
F
U5/N
C
DS181
3
2
1
3
VCC
RSTN
GND
R64
10
K
C15
0.1
u
F
B1
0
80
z/100M
R59
10
K
C58
5p
F
RP13
33
8
1
7
2
6
3
5
4
C16
0.
1uF
+
C31
10uF/16V
R159
0/NC
R63
10
K
R49
3
3
FB1
R50
3
3
FB6
R153
4.7K
C37
NA
R61
10
K
X1
14.318MH
z
1
2
FB3
R60
10K/NC
C30
0.1
u
F
C56
5p
F
R62
10
K
+
C54
10uF
C59
0.
1uF
RP6
3
3
8
1
7
2
6
3
5
4
CN3
HEADER 4
/NC
1
2
3
4
+5
V
TXD
RXD
GND
R157
0/NC
D8
LS4
148
A
K
RP7
3
3
8
1
7
2
6
3
5
4
R56
4.7K
C55
0.1
u
F
RP8
3
3
8
1
7
2
6
3
5
4
FB4
R65
10
K
RP9
3
3
8
1
7
2
6
3
5
4
C33
0.1
u
F
R54
4.7K
RP10
33
8
1
7
2
6
3
5
4
RP11
33
8
1
7
2
6
3
5
4
R48
3
3
R58
10
K
RP12
33
8
1
7
2
6
3
5
4
C49
0.1
u
F
U8
24LC1
6B
1
2
3
4
5
6
7
8
A0
A1
A2
VSS
SI
SCK
WP
VCC
+
C48
10uF/16V
Close
to respect
ive power Pins
Close
to respect
ive power Pins
+3
.3
V
+2
.5
V
GND
GND
C43
0.
1uF
C19
22uF/16
V
C26
0.1
u
F
C27
0.
1uF
C42
0.1
u
F
C40
0.1
u
F
C45
0.1
u
F
C46
0.
1uF
C29
0.
1uF
C39
0.
1uF
C20
0.
1uF
C23
0.1
u
F
C25
0.
1uF
C21
0.1
u
F
C22
0.
1uF
C47
0.1
u
F
C44
0.
1uF
C24
0.
1uF
C41
0.
1uF
C28
0.1
u
F
C38
22uF/16
V
XTAL
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