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Vizio GV42L HDTV, L42HDTV10A service manual Main Board Block Diagram

Models: GV42L HDTV L42HDTV10A

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Troubleshooting Specifications Block Diagram RGB Signal Factory preset timings Command Truth Table Type TV RF connector Weight Operating Precautions Output power measurement

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Main Board Block Diagram

CONFIDENTIAL – DO NOT COPY	Page 10-3
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Vizio GV42L HDTV, L42HDTV10A service manual Main Board Block Diagram

Page 97 Page 99

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Contents

Vizio GV42L Hdtv Table of Contents Vinc Features Power Supply SpecificationOptical Characteristics Mounting Precautions Dimensions Physical dimension Width 1066 mmWeight Physical weight Speaker Operating Precautions Handling Precautions for Protection On Screen Display TV Source RGB Mode AV Component Mode Hdmi MODE： Confidential do not Copy Factory preset timings Pin Assignment Hdmi Connect PIN Assignment Type TV RF connector RGB Signal Main Board I/o Connections Theory of Circuit Operation MT8202 Application Decoder YPbPr/Scart/D-connectorVideo input Digital port Support Formats Supporting OSD mirror and upside down 2D-Graphic/OSD processor I/O ports are configured as follows： Microprocessor interface Video processor 1.Color Management Dram Usage DDR Sdram V58C2128164SBI5 Application Pin description Command Truth Table Power-UpFunctional Description Mode Register Set MRS Precharge Bank Activate Command Read Operation Precharge Timing During Read Operation Burst Stop Command Precharge Timing During Write Operation Burst Write Operation MX29LV160BTTC Flash Application Block Diagram Command Definitions Write COMMANDS/COMMAND Sequences READ/RESET Command Reading Array Data WM8776 Application Audio sample rate Slave mode Confidential do not Copy MT8293 Application Hdcp Decryption Tmds Digital CoreActive port detection Video Data Conversion and Video Output I2c Interface to Display Controller TDA8946 Application Block diagram Input configuration Output power measurement Mode selection MT5351 Application General Feature List CGMS/WSS Confidential do not Copy MX29LV320BTTC Flash Application Confidential do not Copy Block Diagram BUS OPERATION--1 Write COMMANDS/COMMAND Sequences BUS OPERATION--2 Table A. MX29LV320AT/B Command Definitions Standby Mode Reset Operation Software Command Definitions Write Protect WP Write Operation Status Table B. Write Operation Status Fig C. Command Write Operation Fig D. Read Timing Waveforms Fig E. Reset Timing Waveform Functional Description Block Diagram 16Mb xDDR Sdram NT5DS16M16CS-5T Application Pin Configuration 400mil Tsop II x4 / x8 Mode Register Operation Operating Mode Extended Mode Register Extended Mode Register Definition Truth Table a Commands Active Auto Refresh ReadWrite Self Refresh Operations Reads Random Read Accesses CAS Latencies Burst Length = 2, 4 or Read Command Write Command Data Input Write Data Output Read Waveforms PC MODE1366X768 60HZ CH1 Green # FB27 CH2 Vgavsync L22 CH1 Vgal R193 CH2 Avol R194 CH1 PCL CE70+ PCL CE70 AV&TV Mode AV1/AV2/TV Video Confidential do not Copy CH1 Dacbclk U23 PIN4 CH1 Dacmclk U23 PIN5 Component Mode Component 1/2 CH1YCBCRL2L19 CH2 2A33 U22 PIN11 CH1 AVL CE71+CH2 Auspl R304 Hdmi 1&2 Confidential do not Copy DTV HD Confidential do not Copy CH1 Vovsync DU9 PIN W1 CH1 Vode DU9 PIN W2 CH1 Vopclk DU9 PIN Trouble shooting Monitor Display Nothing PC Mode TV, Composite VIDEO1, 2, S-VIDEO is not Display Correctly COMPONENT1, 2 is not Display Correctly Hdmi is not Display Correctly Trouble of DC-DC Converter Trouble of DDC Reading Block Diagram System Block Diagram Wxga panel Confidential do not Copy Main Board Block Diagram Page Page Page Page Page Page Page

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