Read Sharp LC-20VM2E (serv.man2) Service Manual online
22
LC-20VM2E
LC-121M2E
LC-150M2E
LC-150M2E
7-2. IC1201 LCD CONTROLER
Terminal No.
Symbol
I/O
Voltage
Function block
Function
1
OSD_BK
I
5V
OSD Blanking input (FB SW)
2
OSD_R
I
5V
OSD R signal input
3
OSD_G
I
5V
OSD G signal input
4
OSD_B
I
5V
OSD B signal input
5
OSDVD
O
5V
OSD V output
6
OSDHD
O
5V
OSD H output
7
OSDCK
O
5V
OSD clock output
8
PC_CSY
O
5V
PC_VGA
PC composition synchronous output,
Modification
Modification
9
GND
10
VDD5
I
5V
5V power supply terminal
11
OFL
TO
5V
PWM Control
Lamp dimming control output
12
MP_DA
I
5V
Serial I/F
3-wire serial I/F data input signal
13
MP_CK
I
5V
Serial I/F
3-wire serial I/F clock input signal
14
MP_CS
I
5V
Serial I/F
3-wire serial I/F chip selection input signal
15
MP_RCS
O
5V
Serial I/F
Serial I/F READ CS signal
16
MP_RDA
O
5V
Serial I/F
Serial I/F READ data signal
17
CSYNC
I
5V
VIDEO PLL
Composit signal input
18
PDP
TO
5V
VIDEO PLL
PLL control signal output
19
GND
20
OSCI
I
5V
VIDEO PLL
PLL ocsillation input
21
OSCO
O
5V
VIDEO PLL
PLL ocsillation output I
OL
=3.0Ma
22
VDD5
5V
5V power supply terminal
23
GND
24
OHSYN
O
5V
VIDEO PLL
OHSYN=CSYNC*FREE*POL I
OL
=1.0mA
25
DVDO
O
5V
Sync signal process
Digital sync separation output I
OL
=1.0mA
26
VSYN
I
5V
Sync signal process
Virtical sync signal , Digital countdown input
27
GST
I
5V
LCD TIMING
Reset input terminal
28
GND
29
REV
O
5V
LCD TIMING
Gradation power supply, inversion timing
I
I
OL
=1.0mA
30
REVV0
O
5V
LCD TIMING
Common inversion timing I
OL
=1.0mA
31
GSP1
TO
5V
LCD TIMING
Gate, SPS signal I
OL
=1.0mA
32
GCK
TO
5V
LCD TIMING
Gate, CLS signal output I
OL
=1.0mA
33
GND
34
OOR7
O
3V
RGB gradation process
RED signal output (MSB)
35
OOR6
O
3V
RGB gradation process
36
OOR5
O
3V
RGB gradation process
37
OOR4
O
3V
RGB gradation process
38
OOR3
O
3V
RGB gradation process
39
OOR2
O
3V
RGB gradation process
RED signal output (LSB)
40
PC_HSY
I
3V
PC VGA HSYNC INPUT
41
PC_VSY
I
3V
PC VGA VSYNC INPUT
42
GND
43
OOG7
O
3V
RGB gradation process
GREEN signal output (MSB)
44
OOG6
O
3V
RGB gradation process
45
OOG5
O
3V
RGB gradation process
46
OOG4
O
3V
RGB gradation process
47
OOG3
O
3V
RGB gradation process
48
OOG2
O
3V
RGB gradation process
GREEN signal output (LSB)
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