Read Sharp LL-T1803 (serv.man7) Service Manual online
LL-T1803-E/P
CIRCUIT DIAGRAM
6 – 5
A
B
C
D
876
5
4
3
21
1
2
3
4
5
6
7
8
D
C
B
A
MCU INTERF
A
C
E
66
77
88
R80
0
R93
0
RP36
4.7K
R95
4.7K
U18
NC7S14
R96
4.7K
R82
100
R81
220
C180
0.1uF
C296
0.1uF
R84
4.7K
C173
33p
R75
33
C172
220p
RP37
4.7K
R112
33
R79
4.7K
Q2
MMBT3906L
C184
NC
R100
330
R109
22
C171
1uF
U19
AV9173-01
R74
0
C183
100uF/25v
Q1
MMBT3906L
R98
330
C182
0.1uF
C181
0.01uF
C164
NA
U13
OSC_11.0592MHz
D4
1N4148_NC
RP33
4.7K
C163
0.1uF
C292
NC
C177
0.1uF
U12
MTV230
RP32
4.7K
U15
24C16
R85
100
R87
100
C176
0.1uF
R76
100
C305
15P
R83
0
C167
NC
R86
0
U16
74HC4053
R184
0
U14
74LCX125
B76
0
R185
0
C175
22P
R183
0
B75
22
RP31
4.7K
RP38
4.7K
RP34
4.7K
R73
1K
R115
33
C174
0.1uF
C170
22P
C165
22P
R78
10
RP35
4.7K
R94
10K_NC
R97
33
C178
0.1uF
R99
33
C166
220P
B106
30z/100M
R90
0
C169
100P
R88
100
B105
30z/100M
R91
0
R89
100_NC
R92
0
3V3
3V3
5V_STBY
3V3
3V3
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
5V_STBY
GND
GND
GND
GND
3V3
3V3
GND
GND
GND
GND
GND
GND
3V3
3V3
GND
GND
GND
5V_STBY
GND
GND
GND
GND
3V3
3V3
OSD_HS
4
OSD_VS
4
OSD_R
4
OSD_B
4
OSD_G
4
ASIC_SCL
4
ASIC_SDA
4
ROM_SCL
4
ROM_SDA
4
FBLK
4
PDO#
3
PSC1#
8
ASIC_RESET#
4
MENU#
7
PSC0#
8
SOURCE_SEL#
7
BL_PWM
7
BL_ON_OFF#
7
12MHZ
4
VCLK01
3,4
PD#
3
ABC
7
FCLK1
4
VCLK1
4
AUDIO_PD
9
SELECT#
7
VSYNC_IN
HSYNC_IN
ISP_SCL
7
ISP_SDA
7
LED_GREEN
7
D_HPD
7
HSYNC_X
4
VSYNC_MCU
2,4
LED_AMBER
7
SOFT_START#
7
7
SCDT
3
HSYNC_IN
VSYNC_IN
HSYNC_D
3
VSYNC_D
3
SOG_OUT
2
9883_V
2
ROM_SCL_EEPROM
4
ROM_SCL
4
ROM_SCL_ASIC
4
4
ASIC_RESET#
4
UP#
7
LVDS_PD#
5
MCU_SDA1
2,9
MCU_SCL1
2,9
DOWN#
7
0V~2.5V+/-0.1V
PSC0#
SD_MODE
OSD_CLK
SD_MODE
INPUT_SELECT
OSD_CLK
AMBER#
GREEN#
X1
X1
INPUT_SELECT
8
1
7
2
6
3
5
4
NC
1
IN
2
GND
3
OUT
4
VCC
5
1
2
8
1
7
2
6
3
5
4
B
E
C
FBIN
1
IN
2
GND
3
FSO
4
OE
5
CLK1
6
VDD
7
CLK2
8
B
C
OE
1
GND
2
OUT
3
VDD
4
A
K
8
1
7
2
6
3
5
4
ROUT
1
XIN
2
OSDHS
3
OSDVS
4
P4.7/VBLANK
5
P4.6/HBLANK
6
X1
7
X2
8
P4.5
9
P4.4
10
P4.3
11
P4.2
12
P4.1/VSYNC
13
P4.0/HSYNC
14
P3.0/Rxd/HSCL
15
P3.1/Txd/HSDA
16
P3.2/INT0
17
VDD
18
RST
19
VSS
20
P3.4/T0
21
P3.5/T1
22
P6.0/ISCL
23
P6.1/ISDA
24
P1.0
25
P1.1
26
P1.2
27
P1.3
28
P1.4
29
P1.5
30
P1.6
31
P1.7
32
P5.0/AD0
33
P5.1/AD1
34
P5.2/AD2
35
P5.3/AD3
36
P5.4/DA0
37
P5.5/DA1
38
P5.6/DA2
39
P5.7/DA3
40
INT/P6.2
41
FBKG
42
BOUT
43
GOUT
44
8
1
7
2
6
3
5
4
A0
1
A1
2
A2
3
VSS
4
SDA
5
SCL
6
WP
7
VDD
8
S1
11
S2
10
S3
9
1Y0
12
1Y1
13
2Y0
2
2Y1
1
3Y0
5
3Y1
3
1Z
14
2Z
15
3Z
4
E_
VEE
VCC
16
GND
1OE_
1
1A
2
1Y
3
2OE_
4
2A
5
2Y
6
GND
7
3Y
8
3A
9
3OE_
10
4Y
11
4A
12
4OE_
13
VCC
14
1
2
12
8
1
7
2
6
3
5
4
8
1
7
2
6
3
5
4
8
1
7
2
6
3
5
4
8
1
7
2
6
3
5
4
12
12
E
1
2
1
2
DIP 6.3
Click on the first or last page to see other LL-T1803 (serv.man7) service manuals if exist.