Read Sharp LL-T15A3 (serv.man8) Service Manual online
LL-T15A3
CIRCUIT DIAGRAM
6 – 2
PARAMETER
EEPROM
POWER CONN.
5V-->3.3
V
RESET
LCD POWE
R
TO KEY SW BD
PANEL VDD SELECTOR
LOW ON
LOW ON
USE 9P
R150 R151 ARE 100 OHM FOR ADJUSTABLE
TO DC JACK BD
1234 FOR SENSOR
5678 FOR AUDIO
SCL
SDA
RESE
T
KEY_DOWN#
KEY_UP#
KEY_SELECT#
KEY_MENU#
EN_BL
#
EN_LCD
SDA
SCL
IRQ
LED_GRE
EN
KEY_DOWN#
KEY_UP#
KEY_MENU#
LED_GR
EEN
LED_RED
LED_AMBER#
KEY_SELECT#
EN_LCD
LED_RED
HOT_KEY
RESE
T
HOT_KEY
IRQ
AUDIO_PWM
AUDIO_PWR
A_P
WM
A_P
WR
AUTO_BRI_CTRL
AUTO_BRI_DETECT
AUTO_BRI_DETECT
AUTO_BRI_CTRL
A_P
WM
A_P
WR
RESET#
2
HFS
2
HDATA2
2
HDATA3
2
HCLK
2
EN_BL
#
2,4
EN_LCD
2
V_ST
ATE
2
HDATA0
2
HDATA1
2
BRI_PWM
4
+3
.3V
VCC_LC
D
+3
.3V
12VIN
+2.5V
+5
V
+5
V
+5
V
+5V
+5V
+5
V
+5
V
+5
V
+5
V
+5V
+5
V
+5
V
+5
V
+5
V
+5
V
R91
0
U10
24LC1
6B
1
2
3
4
5
6
7
8
A0
A1
A2
VSS
SI
SCK
WP
VCC
C94
0.1
uF
D19
RLZ5.1
A
K
C87
33
P
R79
4.7K
C80
1u
F
16
V
08
05
R83
10
K
C187
0.1
uF
C193
1u
F
08
05
B3
7
220Z/100M-NC
R164
22
0
R163
22
0
R161
3.6K
B3
3
220
z/100M
C84
0.1U/20V/NA
B2
7
R84
10
K
+
C78
10uF/16
V
CPWX4.3
C71
1u
F
080
5
U12
AMS11
17_2.5V
2
1
3
VOUT
GND
VIN
B2
6
R78
47
K
+
C191
10uF/16V
CPWX4.3
C194
0.0
1uF
RP11
4.7K*4
8
1
7
2
6
3
5
4
U7
EZ1084CT
3
1
2
4
VIN
GND
VOUT0
VOUT1
C99
22uF/16V
B2
5
C98
0.1
uF
RP12
4.7K*4
8
1
7
2
6
3
5
4
+
C77
10uF/16
V
CPWX4.3
R160
7.5K
R70
22
0
06
03
1%
B2
8
R67
13
0
06
03
1%
B3
1
Q1
4
MM
BT3904L
C
B
E
B3
0
Q8
MM
BT3906L
B
E
C
Q7
MM
BT3904L
C
B
E
R53
1M
Q1
0
MMBT3904
L-NC
C
B
E
B2
9
+
C79
470uF/16
V
R152
4.7K
B3
5
300z/100M-
NC
B2
4
30
0z/100M
R87
15
K
B8
8
500z/100M
_NC
D21
1N414
8
AK
R158
1M
B3
2
B9
6
220Z/100M-NC
0805
C
B8
7
500
z/100M
D22
1N414
8
AK
U14
AP4
94
7
5
3
1
6
4
2
9
14
13
12
11
10
8
16
15
GND
CT
FBK
IN1+
RT
DTC
IN1-
E1
REF OUT
OC
VCC
C2
E2
C1
16
15
R88
47
0
R156
3.6K
U13
CEM9
435
1
2
3
45
6
7
8
D23
1N414
8
AK
R159
51
0
R153
1K
D25
1N414
8
AK
L1
57UH/2.5A
COR
E_7X13X2SA
R150
12
0
C192
1u
F
08
05
D17
SR34
C195
1u
F
08
05
B9
5
300z/100M-
NC
R149
15
K
+
C69
470uF/16
V
C206
0.1
uF
D16
RLZ5.1
A
K
JP1
4_HEAD
ER
1
2
3
4
C88
33
P
D26
1N414
8
AK
B9
4
300z/100M-
NC
C70
0.
1uF
C207
0.1uF/NC
B3
6
300z/100M-
NC
R148
4.7K
C89
33
P
R81
47
K
C209
0.1uF/NC
R151
12
0
C95
10uf/16V
GND
OUT
VCC
U9
KIA70
42
3
1
2
C93
0.
1uF
J5
HEADER_9
1
2
3
4
5
6
7
8
9
C90
33
P
Q1
3
MM
BT3906L
B
E
C
D13
1N4148/NA
A
K
C186
22uF/16
V
10
V
C97
22
P
C91
33
P
R80
47
0
C188
22uF/16
V
10
V
C211
0.
1uF
+
C83
10uF/16V
CPWX4.3
C96
22
P
C92
33
P
CHOKE1
COM_CHOKE_4
A
1
4
2
3
J7
HEADER_9-NC
1
2
3
4
5
6
7
8
9
R92
10K-NC
C208
0.
1uF
R93
47
0
F1
RGE30
0
R82
470
K
Y2
20MHz/
22P
R77
10
K
R145
4.7K
C205
10
4
+
C202
470uF/16
V
R127
22
RP14
4.7K*4
8
1
7
2
6
3
5
4
R157
4.7K
U8
FDS4435
1
2
3
45
6
7
8
SOURCE1
SOURCE2
SOURCE3
GATE
DRAIN
DRAIN1
DRAIN2
DRAIN3
C204
10
2
JP6
HDR/MA/8
PX1
JST
B8
P-VH
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
R155
0.18_NC
1W
R154
10
D20
1N414
8
AK
D18
1N414
8
A
K
+
C75
470uF/16
V
C201
22
2
Q6
MM
BT3906L
B
E
C
R85
100K/NA
C179
0.1
uF
U11
M6759
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
30
31
32
33
35
36
37
38
39
40
41
42
43
44
1
12
23
34
P1.0/T2
P1.1/T2EX
P1.2/ECI
P1.3/CEX0
P1.4/CEX1
P1.5/CEX2
P1.6/CEX3/WAIT#
P1.7/CEX4/A17/W
RST
P3.0/RXD
P3.1/TXD
P3.2/INT0#
P3.3/INT1#
P3.4/T0
P3.5/T1
P3.6/WR#
P3.7/RD#/A16
XTAL2
XTAL1
VSS
A8/P2.0
A9/P2.1
A10/P2.2
A11/P2.3
A12/P2.4
A13/P2.5
A14/P2.6
A15/P2.7
PSEN#
ALE/PROG#
EA#/VPP
AD7/P0.7
AD6/P0.6
AD5/P0.5
AD4/P0.4
AD3/P0.3
AD2/P0.2
AD1/P0.1
AD0/P0.0
VCC
NIC
NIC
NIC
NIC
RP15
4.7K*4
8
1
7
2
6
3
5
4
B3
4
220Z/100M-NC
0805
C
C86
33
P
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
2/4
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