Vizio VW42L - 42 Inch LCD HDTV, Service Manual

Page 1: ...Service Manual V Inc 320A Kalmus Drive Costa Mesa CA 92626 TEL 714 668 0588 FAX 714 668 9099 Top Confidential Model VIZIO VW42L FHDTV10A_LPL AUO...

Page 2: ...3 1 4 Factory Preset Timings 4 1 5 Pin Assignment 5 1 6 Main Board I O Connections 6 1 7 Theory of Circuit Operation 7 1 8 Waveforms 8 1 9 Trouble Shooting 9 1 10 Block Diagram 10 1 11 Spare parts li...

Page 3: ...ence to radio communications However there is no guarantee that the interference will not occur in a particular installation If this equipment does cause unacceptable interference to radio or televisi...

Page 4: ...dio line out Audio optical out 5 Built in auto adjust function for automatic adjument of screen display 6 Smoothing function enables display of smooth texts and graphics even if image with resolution...

Page 5: ...p Power Consumption Total 320W MAX Weight 11 5 Kg Typ Display Mode Transmissive mode Normally black Surface Treatment Hard coating 3H Anti glare treatment of the front polarizer 2 Input Connectors Ser...

Page 6: ...ective plate to the surface in order to protect the polarizer Transparent protective plate should have sufficient strength in order to the resist external force 4 You should adopt radiation structure...

Page 7: ...on becomes longer 4 Be careful for condensation at sudden temperature change Condensation makes damage to polarizer or electrical contacted parts And after fading condensation smearor spot will occur...

Page 8: ...6 Handling Precautions for Protection Film 1 The protection film is attached to the bezel with a small masking tape When the protection film is peeled off static electricity is generated between the...

Page 9: ...andard Movie Game b Backlight 0 100 c Brightness 0 100 d Contrast 0 100 e Color 0 100 f Tint 32 32 g Sharpness 0 7 h Color Temperature Custom Cool Normal Warm h 1 Custom Red 0 255 Green 0 255 Blue 0 2...

Page 10: ...cais Espanol b Sleep Timer Off 30 Minutes 60 Minutes 90 Minutes 120 Minutes c Wide Wide Zoom Panoramic Normal d Input Naming AV Comp1 Comp2 RGB HDMI1 HDMI2 HDMI3 e CC Off CC1 CC2 CC3 CC4 f CC On Mute...

Page 11: ...Auto Adjust Run b Backlight 0 100 c Brightness 0 100 d Contrast 0 100 e Color Temperature Custom 6500 9300 e 1 Custom Red 0 255 Green 0 255 Blue 0 255 f H size 0 255 g H Position 0 100 h V Position 0...

Page 12: ...rd Movie Game b Backlight 0 100 c Brightness 0 100 d Contrast 0 100 e Color 0 100 f Tint 32 32 g Sharpness 0 7 h Color Temperature Custom Cool Normal Warm h 1 Custom Red 0 255 Green 0 255 Blue 0 255 i...

Page 13: ...on 0 64 e 2 V Position 0 32 e 3 H Size 0 100 e 4 V Size 0 100 f Reset All Setting Video Sources AV1 AV2 COMPONENT1 COMPONENT2 A Picture a Picture Mode Custom Standard Movie Game b Backlight 0 100 c Br...

Page 14: ...omp2 RGB HDMI1 HDMI2 HDMI3 e CC Off CC1 CC2 CC3 CC4 f CC On Mute Off On g Digital CC Style g 1 Caption Style Custom As Broadcaster Custom g 2 Font Size Large Small Medium g 3 Font Color white Green Bl...

Page 15: ...CONFIDENTIAL DO NOT COPY Page 3 7 File No SG 0264 D Parental a PASSWORD...

Page 16: ...Is J1 connector good 3 Is DC DC OK 4 Is U14 5V working ok LED is lighting It is in power saving 1 Check video cable 2 Is the timing supported 3 Check sync input 4 Check VGA SOG rout if analog SOG Is b...

Page 17: ...signal good 1 Check video 2 Check DVD player U13 input correct 1 Check P2 VIDEO signal 2 Check signal between U13 IF IN AV mode LVDS output correct 1 Check U13 DV33 DV12 AV15 AV12 2 Check X1 is OK 1 C...

Page 18: ...t signal good 1 Check video 2 Check host s setting P3 input correct 1 Check signal between P3 2 Check power 12V 5v U13 input correct 1 Check signal between U14 P1 2 Check U13 Clock 60MHZ 3 Check U13 D...

Page 19: ...264 Yes Yes N0 N0 Yes HDMI IS NOT DISPLAY CORRECTLY Input signal good Start 1 Check video 2 Check host s setting U13 no data out 1 Check U13 power 2 Check between signal U13 3 Check U13 clock 60MHZ 1...

Page 20: ...on 1 J1 connection good 2 Check U13 OPWRSB OPCTRL2 Pin ROUBLE OF DC DC CONVERTER Start J1 PIN9 10 11 J1 PIN 2 3 4 The voltage is about 5VSB 1 Check power board 2 Check power cable connection J1 U14 p...

Page 21: ...DDC READING Start Analog DDC OK Support DDC1 2B 1 VGA cable ok 2 Check signal U31 to P5 3 Check U31 Voltage 4 Is compliant protocol HDMIDDC OK Support DDC1 2B 1 HDMI cable ok 2 Check signal U32 to P7...

Page 22: ...1 Check Audio source 2 Check the player of source U37 input correct 1 Check Power of U37 L54 2 Check signal for MT8292 C178_R C183_L Check signal correct END 1 Check MT8292 CE94 ChL and C95 ChR AV in...

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