Descripion Of Block Diagram - LG M237WD Service Manual

1.Input Interface.
1-1.PC Input
- RGB Input is directly transmitted to LGE1854C(scaler,Clock 12Mhz) and display up to 1920*1080 resolution
- DVI Signal input go to scaler through TMSD351(DVI/HDMI Switch)
- PC Audio is connected PC-Audio input by Stereo Cable
1-2 Video Input
- Component :YPbPr/YCbCr signal input, Up to 1080P Resolution.
- CVBS/S-Video : CVBS/S-Video signal input, supporting 480P
- HDMI 1,2 :Digital signal input(Included Audio)
1-3 RF(ATSC/NTSC)Input :ATSC/NTSC Input.
1-4 Audio Input :Component L/R,Audio L/R,Stereo(For PC) input.
2.Output Interface
- Video :The video signal goes to LGE1854C(Scaler)-> Frame Memory(210MHz:converted LVDS signal)->Module
- Audio :The audio is divided Digital signal at Scaler go through NTP3000A(Audio Amp IC) and generate to Speaker
Head-phone signal is divided to stereo signal at Scaler, then generate Headphone Amp(IC TPA6110)
- Optical Output :Generate audio output from Scaler(SPDIF(Optical)
3.Power Interface
- Input 5V,15V from Power Board is converted to 3.3V,2.6V,1.8V,1.25V,1.2V by Regulator and DC/DC Converter
Supply power to Module,Audio Amp and IC
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C
Only for training and service purposes
DESCRIPTION OF BLOCK DIAGRAM
- 25 - LGE Internal Use Only