Service manual

23
LC-20VM2
LC-121M2E
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
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 IOL=3.0Ma
22 VDD5 5V 5V power supply terminal
23 GND
24 OHSYN O 5V VIDEO PLL OHSYN=CSYNC*FREE*POL IOL=1.0mA
25 DVDO O 5V Sync signal process Digital sync separation output IOL=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
IOL=1.0mA
30 REVV0 O 5V LCD TIMING Common inversion timing IOL=1.0mA
31 GSP1 TO 5V LCD TIMING Gate, SPS signal IOL=1.0mA
32 GCK TO 5V LCD TIMING Gate, CLS signal output IOL=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)