LG RD-JT30 Service Manual page 130

Chapter 4 Circuit Operation Theory
JT31 DMD projector being using the SVGA DMD Engine made by BenQ, it includes
front end circuitry, DMD driver circuitry and other peripheral circuitry. The front end circuitry
digitizes the input analog VGA and TV signals and make a scaling processes. The DMD driver
circuitry is transferring the front-end circuitry to DMD chip. The peripheral circuitry include fan
control, LED control, thermal detect, and so on.
1. Whole system circuitry
1.1 Whole system block diagram