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Vizio L42HDTV10A, GV42L HDTV service manual CH1 Green # FB27 CH2 Vgavsync L22

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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CH1 GREEN+(C294)

CH1 GREEN # (FB27); CH2 VGAVSYNC (L22)

CONFIDENTIAL – DO NOT COPY	Page 8-2
	File No. SG-0198

Page 76 Page 78

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Vizio L42HDTV10A, GV42L HDTV service manual CH1 Green # FB27 CH2 Vgavsync L22

Page 76 Page 78

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Contents

Vizio GV42L Hdtv Table of Contents Vinc Features Power Supply SpecificationOptical Characteristics Weight Physical weight Dimensions Physical dimension Width 1066 mmMounting Precautions Speaker Operating Precautions Handling Precautions for Protection TV Source On Screen Display 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 Support Formats Digital port 2D-Graphic/OSD processor Supporting OSD mirror and upside down Microprocessor interface I/O ports are configured as follows： Video processor 1.Color Management Dram Usage DDR Sdram V58C2128164SBI5 Application Pin description Power-UpFunctional Description Command Truth Table Mode Register Set MRS Precharge Bank Activate Command Precharge Timing During Read Operation Read Operation Precharge Timing During Write Operation Burst Stop Command Burst Write Operation MX29LV160BTTC Flash Application Block Diagram Command Definitions Write COMMANDS/COMMAND Sequences READ/RESET Command WM8776 Application Reading Array Data Audio sample rate Slave mode Confidential do not Copy MT8293 Application Active port detection Tmds Digital CoreHdcp Decryption Video Data Conversion and Video Output TDA8946 Application I2c Interface to Display Controller Block diagram Input configuration Output power measurement MT5351 Application Mode selection General Feature List CGMS/WSS Confidential do not Copy MX29LV320BTTC Flash Application Confidential do not Copy Block Diagram BUS OPERATION--1 BUS OPERATION--2 Write COMMANDS/COMMAND Sequences Table A. MX29LV320AT/B Command Definitions Reset Operation Standby Mode Write Protect WP Software Command Definitions Table B. Write Operation Status 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 Definition Extended Mode Register Active Truth Table a Commands Write ReadAuto Refresh Self Refresh Reads Operations Random Read Accesses CAS Latencies Burst Length = 2, 4 or Read Command Write Command Data Input Write Data Output Read PC MODE1366X768 60HZ Waveforms 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 Monitor Display Nothing PC Mode Trouble shooting 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 System Block Diagram Wxga panel Block Diagram Confidential do not Copy Main Board Block Diagram Page Page Page Page Page Page Page

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