Vizio SV420XVT1A_LPL Service Manual Download Page 4

CONFIDENTIAL – DO NOT COPY

 

Page 1-1

 

File No. SG-0281

 

Chapter 1   Features 

 
1.    Built in TV channel selector for TV viewing 
 
2.    Simulatnueous display of PC and TV images 
 
3.    Connectable to PC’s analog RGB port   
 
4.  Built in S-video, HDTV, composite video, HDMI and TV out 
 
5.    Built in auto adjust function for automatic adjument of screen display 
 
6.    High quality 1920X1080 pixel by pixel display. 
 
7.  Smoothing function enables display of smooth texts and graphics even if 

image with resolution lower than 1920X1080 is magnified 

 
8.    Advanced video functions for personal favor. 
 
9.    Picture In Picture (PIP) function to show TV or VCR images   
 
10.    Power saving to reduce consumption power too less than 1W 
 
11.    On Screen Display: user can define display mode   

(i.e. color, brightness, contrast, sharpness, backlight),sound setting, PIP, 
TV channel program, aspect and gamma or reset all setting. 

 

Summary of Contents for SV420XVT1A_LPL

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 SV420XVT1A_LPL...

Page 2: ...lay 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...

Page 3: ...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 television recep...

Page 4: ...lay 6 High quality 1920X1080 pixel by pixel display 7 Smoothing function enables display of smooth texts and graphics even if image with resolution lower than 1920X1080 is magnified 8 Advanced video f...

Page 5: ...normally Black Surface Treatment Hard Coating 3H Anti glare treatment of the front polarizer Haze 13 2 TFT LCD OPTICAL CHARACTERISTICS Contrast ratio 1300 Typ _ LPL LC420WUD SAC1 Surface Luminance Whi...

Page 6: ...itude 0 14 000 ft Non Operating 4000ft 7 DIMENSIONS Physical dimension Dimensions with stand 1000 9mm W x 690 4mm H x 241 4mm D Dimension without stand 1000 9mm W x 650 0mm H x 102 0mm D inches 8 WEIG...

Page 7: ...nding and shielding methods may be important to minimize the interference 2 HANDLING PRECAUTIONS FOR PROTECTION 1 The protection film is attached to the bezel with a small masking tape When the protec...

Page 8: ...om Standard Vivid Movie Game Football Golf Basketball Baseball 1 1 Backlight 0 100 1 2 Brightness 0 100 1 3 Contrast 0 100 1 4 Color 0 100 1 5 Tint 32 32 1 6 Sharpness 0 7 1 7 Advanced Video 1 7 1 Noi...

Page 9: ...00 9300 Custom 1 5 2 Red 0 255 1 5 3 Green 0 255 1 5 4 Blue 0 255 1 6 H Size 0 255 1 7 H Position 0 100 1 8 V Position 0 100 1 9 Fine Tune 0 31 AUDIO 2 0 Audio Mode Flat Rock Pop Classic Jazz 2 1 Equa...

Page 10: ...im 2 9 2 1 Left 2 9 2 2 Right 2 9 2 3 Rear Left 2 9 2 4 Rear Right 2 9 2 5 Center 2 9 2 6 Subwoofer 2 9 3 Speaker Distance Setup 2 9 3 1 TV 1 1 2 3 15 15 ft 2 9 3 2 Rear Left 1 1 2 3 15 15 ft 2 9 3 3...

Page 11: ...IP POP 4 2 2 PIP Source TV 4 2 3 PIP Size Small Medium Large 4 2 4 PIP Position TL BR 4 2 5 Audio Source Main or PIP 4 3 Sleep Timer Off 30Minutes 60Minutes 90Minutes 120Minutes 4 4 Wide Wide Normal P...

Page 12: ...V Size 0 100 4 7 5 Auto Phase 4 8 Parental 4 8 1 Rating Enable On Off 4 8 2 Channel Block 4 8 3 US TV Rating 4 8 3 1 TV Y All 4 8 3 2 TV Y7 All FV 4 8 3 3 TV G All 4 8 3 4 TV PG All D L S V 4 8 3 5 TV...

Page 13: ...T COPY Page 3 6 File No SG 0281 SETUP 4 8 6 2 8 ans 4 8 6 3 13 ans 4 8 6 4 16 ans 4 8 6 5 18 ans 4 8 7 DTV Rating 4 8 7 Block TV Unrated Yes No 4 8 9 Access Code Edit 4 8 9 1 New 4 8 9 2 Confirm 4 10...

Page 14: ...sh Green Blue 1 7 3 Advanced Adaptive Luma Off Low Medium Strong Extend 1 7 4 Enhanced Contrast Ratio Off On 1 7 5 Color Temperature 1 7 5 1 Color Temperature Cool Normal Warm Custom 1 7 5 2 Red 0 255...

Page 15: ...Hz 2 2 Balance 50 50 2 3 Digital Audio Out Off Dolby Digital PCM 2 4 Speakers On Off 2 5 Analog Audio Out Fixed Variable 2 6 Lip Sync 0 5 2 7 DRC Off 1 4 1 2 3 4 Full 2 8 Wireless Speaker On Off 2 9 S...

Page 16: ...1 Tuner Mode Cable Antenna 3 2 Auto Search 3 3 Partial Channel Search 3 3 1 Scan Mode Analog Digital Analog Digital 3 3 2 From Channel 1 135 3 3 3 To Channel 1 135 3 4 Skip Channel 3 5 MTS ATV Mono St...

Page 17: ...ue Red Cyan Yellow Megenta 4 6 3 4 Font Opacity Solid Translucent Transparent 4 6 3 5 Background Color Black White Green Blue Red Cyan Yellow Megenta 4 6 3 6 Background Opacity Solid Translucent Trans...

Page 18: ...4 3 G 4 8 4 4 PG 4 8 4 5 14 4 8 4 6 18 4 8 5 Canadian French Rating 4 8 5 1 G 4 8 5 2 8 ans 4 8 5 3 13 ans 4 8 5 4 16 ans 4 8 5 5 18 ans 4 8 6 DTV Rating 4 8 7 Block TV Unrated Yes No 4 8 8 Access Cod...

Page 19: ...VSB F1 2 Is J1 connector of MB good 3 Is DC DC OK 4 Is U22 pin2 3V3SB 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...

Page 20: ...2 Check DVD player U13 input correct 1 Check P14 signal 2 Check signal between P14 and U13 IF AV1 mode 3 Check Tuner U13 IF TV mode 4 Check P15 IF AV2 mode 5 Check U13 POWER 3 3V LVDS output 1 Check J...

Page 21: ...d 1 Check video 2 Check host s setting P14 input correct 1 Check signal from P14 2 Check system power 12V 5V 5VSB U13 input correct 1 Check signal between U13 P3 or P14 2 Check Y1 Clock 60MHZ Is LVDS...

Page 22: ...video 2 Check host s setting P15 P16 input correct 1 Check P15 P16 connect MB 2 Check P503 P506 connect SIDE JACK BD 3 Check system power 12V 5V 5VSB U13 input correct 1 Check signal between U13 P15...

Page 23: ...HDMI1 2 IS NOT DISPLAY CORRECTLY Input signal Start 1 Check video 2 Check host s setting 1 Check P8 P9 connect 2 Check the pin18 19 of P8 P9 3 Check the pin 6 of U33 U34 U13 no data out 1 Is J12 conn...

Page 24: ...CORRECTLY Input signal Start 1 Check video 2 Check host s setting 1 Check P15 P16 connect MB 2 Check P503 P506 connect SIDE JACK BD 3 Check the pin10 11 of P16 MB 4 Check the pin 5 6 of U503 U504 SID...

Page 25: ...3 3V 3V3SB 3 Check power board 4 Check F2 U14 pin 5 6 7 8 The voltage is about 5V while power switch on 1 Check F1 U14 2 Check OPWRSB R19 3 Check U14 pin1 2 or pin 3 4 should have 1V more U15 U17 U22...

Page 26: ...OF EDID READING Start Is Analog DDC OK Support DDC1 2B 1 Analog cable ok 2 Check signal U31 to P5 3 Check U31 Voltage 4 Is protocol compliant Is HDMI DDC OK Support DDC1 2B 1 Analog cable ok 2 Check...

Page 27: ...of J14 J19 is output 3 3V Audio BD 1 J2 of cable is good 2 Check F1 is good 3 J4 J6 of speaker connect are good 4 J3 of cable is good EMI BD 1 Check J2 J4 J1 J3 connect and cables are good TX BD TX ca...

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