LG D237IPS, Service Manual, Page: 16 / 29

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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
DESCRIPTION OF BLOCK DIAGRAM (Main)
1. Video Controller Part.
-RGB input: Transfer RGB analog signal to TTL signal through ADC block.
-DVI & HDMI input : Transfer TMDS encoded signal to TTL signal.
-Scalar : Transfer signals of various resolution to original module resolution.
-Output : Output LVDS encoded digital signal.
2. Power Part.
-5VS source : It°Øs supplied by LPB(LED Power Board) - Module, eeprom IC and pull-up use this source.
-3.3V, 1.2V source : It is consists of LDO that transfer 5VS to 3.3V and 1.2V and the Scalar IC, Flash IC use those
source.
3. MICOM Part.
MICOM part is embedded in Video control part, and It is consists of EEPROM that storage system control data,
CODE memory, MICOM and reset IC. First, MICOM Judges input signal mode by checking frequency and polarity
of input H/V signal, and set the resister value in each IC to control. Next, control auto set, H/V position, clock and
phase that user could control by OSD.
4. ETC.
Key, ambient Sensor, Headphone out