Descripion Of Block Diagram; Copyright Lg Electronics. Inc. All Right Reserved - LG 42WS10-BAAL Service Manual

1. VIDEO SIGNAL PROCESSOR
- This section is composed of Mstar LGE107DC-R [S7MR DIVX/MS10]and peripheral devices.
- This IC includes internal Micom block and Memory interface.
- This IC includes A/D Converter, PLL Circui,t X101 24Mhz, Video decoder and De-interlacer.
- This IC includes TMDS Receiver and LVDS Transmitter.
- This IC also includes Sound Processor.
2. Sub MICOM
- sub Micom WT61P804' role is DPM Control and on/off control and composed with EEPROM and X102 12Mhz Clock
- Sub MICOM detect H/V Sink and change DPM mode for RGB input and DPM mode change through IIC communication with
HDMI Switch for Digital INPUT
3. RS-232C IN/OUT CIRCUIT
- This section is composed of RS-232C IC(MAX3232), and peripheral devices.
4. HDMI/DP, DVI IN/DVI CIRCUIT
- HDMI/DP/DVI Digital Signal is connected to HDMI switch SII9489C to realize Digital DPM for Dital all input
- DP PS161 convert DP signal to HDMI signal simply and deliver SII9489C
- SII9489C also have DVI in/out function and only DVI input signal is delivered to Output Jack
5. RGB/Component/AV IN/OUT CIRCUIT
- This section is composed of RGB Input Output Jack, Schmitt trigger inverter IC, OP-AMPs, and peripheral devices.
- RGB input signal path is connected from input jack to scaler directly.
- RGB output signal is made by OP-Amps ICs. And this sends output signal to RGB output jack.
- signal matching is Y-->G, Pb--> B, Pr--> R for Component, AV--> G for AV and RCA to 15P D-sub cable is recommended for
AV/Component.
6. Analog Audio input
- RGB/DVI/Component/AV audio input is connected to Mstar Scaler block and delivered to Digital AMP NTP-7400L
7. USB
- USB +/- signal is connected to scaler directly and supports USB Playback.
8. LAN Control Block
- LAN7500 compose LAN Control circuit by processing the control input from RJ-45 with X602 25Mhz
- this input' purpose is Just only control of MNT like a RS-232C, can not receive any Video streaming
9.AUDIO AMPLIFIER
- This section is composed of NPT7400AL and peripheral devices.
- Audio amplifier's function is amplification of sound signal received from sound processor.
Copyright LG Electronics. Inc. All right reserved.
Only for training and service purposes
DESCRIPTION OF BLOCK DIAGRAM
- 16 - LGE Internal Use Only