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Vizio VW32L - 32" LCD TV, Service Manual

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Vizio VW32L - 32

CONFIDENTIAL 

–

  DO NOT COPY

 

Page 9

-

1

 

File No. SG-0241

 

N0 

Yes 

N0 

N0 

Yes 

Yes 

Chapter 9   Trouble shooting 

MONITOR

 

DISPLAY

 

NOTHING

 

(PC

 

MODE) 

 
 
 
 
 
 
 
 
 
 
I 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Start 

LED is lighted 

(Orange

Î

green)

1. 

Is Power board 5VSB (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 VGASOG rout if analog    (SOG) (C132) 

Panel has no data 

out? 

It means data to LVDS 
1. Is J8 connecting OK? 
2. Check J1 +5VSB (F1)&+12V (F2) 
3. Is panel ok? 
4. Check P5 D-sub Input correct 

5.

 Check analog input route

 

END 

Summary of Contents for VW32L - 32" LCD TV

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 VX32L VW32L HDTV20A AUO LPL Samsung Panel ...

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 list 11 1 12 Complete Parts List 12 1 Appendix 1 Main Board Circuit Diagram 2 Main Board PCB Layout 3 Assembly Explosion Drawing Block Diagram ...

Page 3: ...ce 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 television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures reorient or relocate the recei...

Page 4: ...auto adjust function for automatic adjument of screen display 6 Smoothing function enables display of smooth texts and graphics even if image withresolution lower than 1366x768 is magnified 7 Advanced video functions for personal favor 8 Power saving to reduce consumption power too less than 3W 9 On Screen Display user can define display mode i e color brightness contrast sharpness backlight sound...

Page 5: ...256 mm V Brightness panel spec 400cd m2 typ Contrast ratio panel spec 900 1 Color coordinates typical White x 0 279 0 03 y 0 292 0 03 Red x 0 628 0 03 y 0 343 0 03 Green x 0 290 0 03 y 0 612 0 03 Blue x 0 146 0 03 y 0 062 0 03 AUO T315XW02 VC Item Specification Display Pixels 1 366 H x 768 V pixels Pixel Pitch 0 51075 mm Color Depth 8 bits 16 7 million colors Active Display Area 697 685 H x 392 25...

Page 6: ...minance Variation δ 1 3 Max Response Time 8 ms Max 12mx Viewing Angle CR 10 Left 89 typ Right 89 typ Top 89 typ Bottom 89 typ Item Specification Display Pixels 1 366 H x 768 V pixels Pixel Pitch 0 51075 H X0 17025 W 3 Color Depth 8 bits 16 7 million colors Active Display Area 697 6845 H X392 256 V Brightness panel spec 450cd m2 typ Contrast ratio panel spec 1500 1 Color coordinates typical White x...

Page 7: ...o Audio 1x S VIDEO Connect 4 POWER SUPPLY Input Voltage Level 100 240 Vac 50 60 Hz Power Consumption 180W MAXPower OFF to less than 3W MAX 5 Speaker Output 10W max X2 6 ENVIRONMENT Operating Temperature 5c 35c Ambient Operating Humidity Ta 35 C 90 RH Non condensing Operating Altitude 0 14 000 feet 4267 2m Non Operating 7 DIMENSIONS Physical dimension Width 760 0mm 20 mm Depth 51 6 mm 20 mm Height ...

Page 8: ...remnant image is likely to occur 6 Module has high frequency circuits System manufacturers shall do sufficient suppression to the electromagnetic interference Grounding 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 protection film is peeled off static electr...

Page 9: ...hich could adjust the performance and set up the setting between the different input sources There are the structures TV Source A Picture Bold Default a Picture Mode Standard Movie Game Custom b Backlight 0 100 90 c Brightness 0 100 50 d Contrast 0 100 50 e Color saturation 0 100 50 f Tint hue 32 32 0 g Sharpness 0 7 4 h Color Temperature Cool Normal Warm Custom i Advanced Video 1 DNR Low Medium S...

Page 10: ...CONFIDENTIAL DO NOT COPY Page 3 2 File No SG 0241 ...

Page 11: ...NOT COPY Page 3 3 File No SG 0241 B Audio Bold Default a Volume 0 100 25 b Bass 0 100 50 c Treble 0 100 50 d Balance 50 50 0 e Surround ON OFF f Digital Audio Out PCM OFF Dolby Digital g Speaker ON OFF h Lip Sync 0 5 0 ...

Page 12: ...PY Page 3 4 File No SG 0241 C TV Bold Default a Tuner Mode Cable Antenna b Auto Search c Skip Channel d MTS Stereo SAP Mono e Time Zone Eastern Indiana Central Mountain Arizona Pacific Alaska Hawaii f Daylight Saving ON OFF ...

Page 13: ...efault a Language English Français Espaňol b Minuterie de veille OFF 30Min 60Min 90Min 120Min c Wide Wide Panoramic Normal d Input Naming AV1 AV2 COMP1 COMP2 RGB HDMI1 HDMI2 e CC OFF CC1 4 f CC On Mute OFF ON g Style de Sous titre h H V Position i Valeurs par defaut ...

Page 14: ...DENTIAL DO NOT COPY Page 3 6 File No SG 0241 E Parental Bold Default Password Default 0000 a Cannel Block b TV Rating c Move Rating d Check for New DTV Rating d Block TV Unrated TV NO Yes e Access Code Edit ...

Page 15: ...SG 0241 RGB Mode A Picture Adjust Bold Default a Auto Adjust b Backlight 0 100 90 c Brightness 0 100 50 d Contrast 0 100 50 e Color Temperature 9300 Custom 6500 f H Size 0 255 127 g H Position 0 100 48 h V Position 0 100 47 i Fine Tune 0 31 29 ...

Page 16: ...OT COPY Page 3 8 File No SG 0241 B Audio Bold Default a Volume 0 100 25 b Bass 0 100 50 c Treble 0 100 50 d Balance 50 50 0 e Surround ON OFF f Digital Audio Out PCM OFF Dolby Digital g Speakers ON OFF h Lip Sync 0 5 0 ...

Page 17: ...OPY Page 3 9 File No SG 0241 C Setup Bold Default a Language English Français Espaňol b Sleep Timer OFF 30Min 60Min 90Min 120Min c Wide Wide Normal d Input naming AV1 AV2 COMP1 COMP2 HDMI1 HDMI2 e Rest All Setting OK Cancel ...

Page 18: ... Backlight 0 100 90 c Brightness 0 100 50 d Contrast 0 100 50 e Color saturation 0 100 50 f Tint hue 32 32 0 g Sharpness 0 7 4 h Color Temperature Cool Normal Warm Custom i Advanced Video 1 DNC Low Medium Strong Off 2 Black level extender Off On 3 White Peak Limiter On Off 4 CTI Low Medium Strong Off 5 Flesh Tone Off On 6 Adaptive Luma Off On ...

Page 19: ...NOT COPY Page 3 11 File No SG 0241 B Audio Bold Default a Volume 0 100 25 b Bass 0 100 50 c Treble 0 100 50 d Balance 50 50 0 e Surround ON OFF f Digital Audio Out PCM OFF Dolby Digital g Speakers ON OFF h Lip Sync 0 5 ...

Page 20: ...241 C Setup Bold Default a Language English Français Espaňol b Sleep Timer OFF 30Min 60Min 90Min 120Min c Wide Wide Normal d Input Naming AV1 AV2 COMP1 COMP2 HDMI1 HDMI2 e CC OFF CC1 4 f CC On Mute OFF ON g H V Position h Reset All Setting OK Cancel ...

Page 21: ...CONFIDENTIAL DO NOT COPY Page 3 13 File No SG 0241 D Parental Bold Default Password Default 0000 a Cannel Block b TV Rating c Move Rating d Block Unrated TV NO Yes e Access Code Edit ...

Page 22: ...klight 0 100 90 c Brightness 0 100 50 d Contrast 0 100 50 e Color saturation 0 100 50 f Tint hue 32 32 0 g Sharpness 0 7 4 h Color Temperature Cool Normal Warm Custom i Advanced Video 1 DNC Low Medium Strong Off 2 Black level extender Off On 3 White Peak Limiter On Off 4 CTI Low Medium Strong Off 5 Flesh Tone Off On 6 Adaptive Luma Off On ...

Page 23: ...ENTIAL DO NOT COPY Page 3 15 File No SG 0241 B Audio Bold Default a Volume 0 100 25 b Bass 0 100 50 c Treble 0 100 50 d Balance 50 50 0 e Surround ON OFF f Digital Audio Out g Speakers ON OFF h Lin Sync 0 5 0 ...

Page 24: ...CONFIDENTIAL DO NOT COPY Page 3 16 File No SG 0241 C Setup Bold Default a Language English Français Espaňol b Sleep Timer OFF 30Min 60Min 90Min 120Min g Rest All Setting OK Cancel ...

Page 25: ...t includes items as below A TV Analog TV or digital TV B AV1 AV2 Composite AV signal C Component1 Component2 Color difference YPbPr video signals D RGB Video Graphics Array VGA or D sub video signals E HDMI1 HDMI2 High Definition Multimedia Interface HDMI multimedia signals INFO INFO button could show an information bar which displays the information about the input signal on our LCD TV ...

Page 26: ...5VSB 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 VGASOG rout if analog SOG C132 Panel has no data out It means data to LVDS 1 Is J8 connecting OK 2 Check J1 5VSB F1 12V F2 3 Is panel ok 4 Check P5 D sub Input correct 5 Check analog input route END ...

Page 27: ...t signal good 1 Check video 2 Check DVD player U13 input correct 1 Check P2 J4 signal 2 Check signal between P2 and U13 IF AV1 AV2 mode 3 Check Tuner U13 IF TV mode 4 Check J4 IF S Video 5 Check U13 POWER 3 3V LVDS output 1 Check J8 Connect is good 2 Is panel working ok END 1 Check LVDS LINE 2 Check U13 clock 60MHz X1 3 Check U13 Power ...

Page 28: ...art Input signal good 1 Check video 2 Check host s setting P3 input correct 1 Check signal from P3 P4 2 Check system power 12V 5V 5VSB U13 input correct 1 Check signal between U13 P3 2 Check Y1 Clock 60MHZ Is LVDS output 1 Check U13 2 Check U13 power 3 3V 2 5v 1 8v 1 25v 1 Is J8 connected good 2 Is panel working ok END ...

Page 29: ...41 Yes Yes N0 N0 HDMI IS NOT DISPLAY CORRECTLY Input signal Start 1 Check video 2 Check host s setting 1 Check P7 P9 connect 2 Check the pin18 19 of P7 P9 3 Check the pin 6 of U32 U34 U13 no data out 1 Is J9 connected good 2 Is panel working ok END ...

Page 30: ...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 The voltage is about 3 3V 1 Check F1 U14 2 Check U15 U17 U22 U21 pin2 The voltage is about 1 2V while power switch on 1 Check F1 U14 2 Check U21 pin2 U19 pin2 The voltage is about 2 5V while power switch on 1 Check J1 C...

Page 31: ...LE 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 signal U32 to P7 3 Check signal U34 to P9 4 Is protocol compliant END ...

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