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Vizio VP423, Service Manual

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Vizio VP423 Service Manual Download Page 20

CONFIDENTIAL 

–

  DO NOT COPY

 

Page 9-4

 

File No. SG-0280

 

Yes 

Yes 

N0 

N0 

 

 

 

HDMI

 

IS

 

NOT

 

DISPLAY

 

CORRECTLY 

 
 

 

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Input signal 

Start 

1. Check video 
2. Check host’s setting 

1. Check P8, P9,P529 connect 
2. Check the pin18 & 19 of P8, 
P9,P529

U12 no data out? 

1. Is J8 connected good? 
2. Is panel working ok?

 

END 

Summary of Contents for VP423

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 VP423 HDTV10A_Samsung...

Page 2: ...isplay 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 pa...

Page 3: ...nce 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 televisio...

Page 4: ...HDMI and TV in 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 lower than 1680x...

Page 5: ...m Display Colors 16 7 millions color 2 OPTICAL CHARACTERISTICS Viewing Angle CR 10 Free 3 SIGNAL Refer to the Timing Chart Sync Signal 1 Type LVDS 2 Input Voltage Level 100 240 Vac 50 60 Hz 4 Input Co...

Page 6: ...PRECAUTIONS 1 You must mount a module using holes arranged in four corners or four sides 2 You should consider the mounting structure so that uneven force ex Twisted stress is not applied to the modul...

Page 7: ...ce becomes dusty please wipe gently with absorbent cotton or other soft materials like chamois soaks with petroleum benzene Normal hexane is recommended for cleaning the adhesives used to attach front...

Page 8: ...ONS FOR PROTECTION 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 film and polarizer This s...

Page 9: ...RE a PICTURE MODE CUSTOM STANDARD MOVIE GAME b BRIGHTNESS 0 100 c CONTRAST 0 100 d COLOR 0 100 e TINT 32 32 f SHARPNESS 0 100 g COLOR TEMPERATURE CUSTOM COOL NORMAL WARM h ADVANCED VIDEO i 1 DNR OFF L...

Page 10: ...REBLE 0 100 d BALANCE 50 50 e SURROUND ON OFF f DIGITAL AUDIO OUT PCM g SPEAKERS ON OFF h LIP SYNC 0 5 C TV a TUNER MODE ANTENNA CABLE b AUTO SEARCH RUN c SKIP CHANNEL TABLE d MTS STEREO e TIME ZONE H...

Page 11: ...DCASTER CUSTOM g 2 FONT SIZE SMALL MEDIUM LARGE g 3 FONT COLOR GREEN BLUE RED CYAN YELLOW MAGENTA BLACK WHITE g 4 FONT OPACITY SOLID TRANSLUCENT TRANSPARENT g 5 BACKGROUND COLOR GREEN BLUE RED CYAN YE...

Page 12: ...RATING a 5 BLOCK TV UNRATED a 6 ACCESS CODE EDIT RGB Mode A PICTURE ADJUST a AUTO PICTURE Run b BRIGHTNESS 0 100 c CONTRAST 0 100 d COLOR TEMPERATURE CUSTOM 6500K 9300K e H SIZE 0 255 f H POSITION 0...

Page 13: ...PICTURE MODE CUSTOM STANDARD MOVIE GAME b BACKLIGHT 0 100 c BRIGHTNESS 0 100 d CONTRAST 0 100 e COLOR 0 100 f TINT 32 32 g SHARPNESS 0 100 h COLOR TEMPERATURE CUSTOM COOL NORMAL WARM i ADVANCED VIDEO...

Page 14: ...0 100 c TREBLE 0 100 d BALANCE 50 50 e SURROUND ON OFF f SPEAKERS ON OFF C SETUP a LANGUAGE ENGLISH FRENCH SPANISH b SLEEP TIMER OFF 30 60 90 120 c RESET ALL SETTING D PARENTAL a PASSWORD a 1 CHANNEL...

Page 15: ...TINT 32 32 f SHARPNESS 0 100 g COLOR TEMPERATURE CUSTOM COOL NORMAL WARM h ADVANCED VIDEO i 1 DNR OFF LOW MEDIUM STRONG i 2 BLACK LEVEL EXTENDER ON OFF i 3 WHITE PEAK LIMITATOR ON OFF i 4 CTI OFF LOW...

Page 16: ...CONFIDENTIAL DO NOT COPY Page 3 8 File No SG 0280 C SETUP a LANGUAGE ENGLISH FRENCH SPANISH b SLEEP TIMER OFF 30 60 90 120 c RESET ALL SETTING...

Page 17: ...VSB F4 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 VGASOG r...

Page 18: ...ut signal good 1 Check video 2 Check DVD player U131 input correct 1 Check P4 signal 2 Check signal between P4 and U131 IF AV S Video mode 3 Check Tuner U16 IF TV mode 4 Check U16 POWER 5V LVDS output...

Page 19: ...rt Input signal good 1 Check video 2 Check host s setting P4 input correct 1 Check signal from P4 2 Check system power 12V 5V 5VSB U131 input 1 Check signal between U131 P4 2 Check Y1 Clock 60MHz Is L...

Page 20: ...No SG 0280 Yes Yes N0 N0 HDMI IS NOT DISPLAY CORRECTLY Input signal Start 1 Check video 2 Check host s setting 1 Check P8 P9 P529 connect 2 Check the pin18 19 of P8 P9 P529 U12 no data out 1 Is J8 co...

Page 21: ...od 2 Check J1Pin9 is up to about 5V 3 Check power board U14 pin 5 6 7 8 The voltage is about 5V while power switch on 1 Check F4 U14 2 Check OPWRSB R10 3 Check U14 pin1 3 U4 U14 U17 pin2 The voltage i...

Page 22: ...BLE 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 HDMI cable ok 2 Check...

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