Question about Vizio Televison & Video

1 Answer

Can you help me troubleshoot a LCD TV power problem?

Hi, I have a Vizio e442va 42lcd I was watching Tv when it turned off and never to on again. The standby light is on and but it never boots up the screen remains black. I am thinking it is the power supply -model 715 g3829-p02-w30-0035 see attached pic or the system board 715-G4365-M01-000-005K. I am first trying to test the power supply. I tested both of the 5v's to ground and I do get 5 volts. I am trying to test the 12v's and the 24v's but I don't know what two pins I need to jump first. Can you assist me telling me what to jump in order to test the: 12v to grounds and the: 24v to grounds? My pins for the cable of the power supply are labelled: pwr-ok 5v 5v ps-on 24v 24v grnd grnd grnd 12v 12v bl-dim Bl-on FYI- there is a diode connecting the pwr-ok to the 2nd 5v Thanks so much

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Vizio Master
  • 10,875 Answers

Nope

Posted on May 25, 2015

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

BoiseLCD
  • 63 Answers

SOURCE: I have a NS-LCD37-09 tv. No picture or backlight

Your main board is faulty. I've done several of these but haven't been able to figure out which component is actually bad these yet. I've simply had to replace the board itself, and it fixes it every time. One thing you can do to get your backlights to come on (and so you know I'm not Jive'n you) Is unplug the three wire bundle that spans from power supply to main board. This will usually make the backlights fire up. I even had one that after I left it that way for a minute (with the backlight on) it suddenly started working again! But this was short lived. :-(
One time I even tried recapping the entire main to see it that would fix it. It did not. I think it might be something to do with the small chip labeled SL37HA37. It's a 16 legged bastard near the 3-wire plug I told you to pull. It's that or possibly the bigger IC near it that has a heat sink on it. The ball grid array solder joints may be faulty. Just guesses, if any smart guys out there figure this one out, be sure to tell the rest of us please!
Thanks, Chris Boise LCD www.boiselcd.com

Posted on Apr 23, 2010

  • 1 Answer

SOURCE: ILO LCD, Power supply issue, MLT169B. 24v output is dead.

I want to know R3 value

Posted on Dec 27, 2010

budmrtn
  • 11361 Answers

SOURCE: we have samsung LCD with

So the standby 5vdc is working but not the rest of the power supply outputs are working? Look for PS_ON signal (3.3~5vdc for ON) from the main board that feed the power supply board. You can tak ethe power supply moudule out the do bench test using 24v lamp attach to the 24vdc out put and feed the PS_ON with 3.3v to see if the 24vdc will turn on.
Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Parts: http://interliquidparts.com/

Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
I have a feeling that the main board is damaged since the protection Diodes are blown, it may have taken out the processor.

Posted on Jul 01, 2011

  • 2 Answers

SOURCE: Vizio refurbished 47 Inch flat screen TV, Model E470VL. After a power outage, the tv comes on to a seemingly test pattern screen, but will not boot beyond that. There is no sound. Sometimes the boo

Sounds like you had a high voltage power surge just before going out
Are u using a high grade reference center or surge stage 2 or 3?

Posted on Nov 28, 2011

SOURCE: VIZIO MODEL VW42LFHDTV10A WILL NOT TURN ON. FUSES &VOLTAGES OK

Did you check for the "ON" or "PS ON" signal on the power supply board? It should be around 3.3vdc.This signal comes from the main board, it commands the other sections of the power supply to come on and turn on the TV set. This signal should be present when you press the power button from either the TV or remote. If you are not getting this signal from the main board, you're most likely dealing with a main board failure. If you are dealing with a main board failure, take heed, some Vizio main boards can be expensive.

Posted on Sep 05, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Vizio m550nv amber light is on but tv will not power on


EASY HOW TO FIX LED Vizio TV- no power - YouTube

? 6:13
https://www.youtube.com/watch?v=9xZcTWr2yV0
Nov 5, 2013 - Uploaded by Tampatec
DiY How to Fix led / lcd Vizio TV service repair - no powerservice repair review guide no red blinking led ... Theorange/amber light turns on when plugged in. But the TV won'tturn on after that (the light does not turn white).

Vizio TV logo Flashing (Blinking), TV will not turn on, not ...

? 4:01
https://www.youtube.com/watch?v=MDzCzZdgbdg
Jan 5, 2012 - Uploaded by Leo P
This is model XVT3D424SV, I was watching a DVD, I switched the input to TV, tried to connect to netflix, it was ...

HOW TO FIX VIZIO TV - What causes no power - YouTube

? 5:53
https://www.youtube.com/watch?v=5k1Mc1f6O3E


Jan 17, 2016 | Vizio M550NV 55 in LCD HDTV

1 Answer

How to fix vizio tv that turns on but no picture


LCD & LED TV Repair - No Image & Blank Black Screen ...

? 5:56
https://www.youtube.com/watch?v=xUzCLgoSPGM
Sep 15, 2014 - Uploaded by ShopJimmy.com
LED & LCD TV How to Diagnose Symptom of No Image on the Screen ... Was working fine and now blank ...

LCD Easy Fix (sound but no picture) - YouTube

? 4:52
https://www.youtube.com/watch?v=IBRE1Dcyxp4
Jan 13, 2012 - Uploaded by Clay Whitehead
My tv stopped working, it had the sound but no picture, so I did a little research and fixed it. ... vizio E701i-A3E ...

Vizio LED TV Repair - TV Has Backlights but no Image on ...

? 5:06
https://www.youtube.com/watch?v=fSCf1xxLjNA
Aug 27, 2015 - Uploaded by ShopJimmy.com
Basic Troubleshooting Help if your Vizio LED TV has a blank screen and no ... It is on an UPS but turned off ...


Dec 10, 2015 | Vizio M3D650SV 65 inch Class Theater 3D...

1 Answer

How do I know if I need to replace the main board?


Vizio TV Repair - How to Install Vizio LCD Motherboard ...

? 6:21
https://www.youtube.com/watch?v=B_ae3f7C3jQ
Feb 20, 2012 - Uploaded by Brady Smith
Learn how to replace your LCD Visio TV motherboard and hear a few facts ... ANYBODY KNOW HOW TO FIX OR WHAT NEEDS TO BE FIXED IF THE ... I have found that I need to replace themainboard in my vizio 42 inch. .... hey, man. can you help me out? i got a VIZIO E3D320VX from ebay brand new.

Vizio 3632-1512-0150 Main Boards Replacement for ...

? 2:48
https://www.youtube.com/watch?v=a_8URZW356E
Dec 6, 2012 - Uploaded by ShopJimmy.com
Top Common Vizio LCD TV problems for bad Main Unit Boards:... To be best prepared to replace the Main Board inside of yourTV, you will need the following ... If you have any further questions regarding your repair, simply post a ... i can see on one of the small black squares (sorry i dont know what they ...

Vizio TV Repair - E601i-A3 Main Board Replacement for No ...





Dec 08, 2015 | Vizio XVT473SV 47 in. LCD HDTV

1 Answer

The tv had blue screen briefly showing "no signal" then turns off. ... and I am getting the same blue screen-no signal.


If your television is displaying a blue screen or no signal message and then turning off, your TV may be at an inactive input. Here's how you can get back to watching your TV:
1. Powering on your TV and press the INPUT button on the VIZIO remote control repeatedly until a picture re-appears.
2. If this does not work, try again but press the button slower this time.

I got this off the vizio website.

Feb 21, 2010 | Vizio GV42L 42 in. LCD Television

1 Answer

My vizio tv wont turn on. Any secret buttons that


Hi my name is Roety,
I can help you with your issue ,
 Check the AC plug, to reset the TV unplug and connect it. If the power light lights up check the input select button the TV needs to be own the correct input to view TV again.
 
 
If I have helped you with your issue
If you have more questions you can still respond
I will reply asap
Thanks

Jan 26, 2010 | Vizio VW32L 32 in. LCD HDTV

1 Answer

I have a Vizio 42LCD TV, no sound and no picture. It just went black all of a sudden. I was just wondering what it could be. The tv was purchased in 2006, so no warranty. It would problably cost too much...


I would at least remove the back and
look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.
You can get the new power supply module (make sure it matches the picture on the website) here (which is more likely): http://www.shopjimmy.com/catalogsearch/result/?q=Vizio+VO47L+

Dec 07, 2009 | Vizio VO47L 47 in. LCD TV

1 Answer

I turn on the tv and it has a blue screen and no


Just try to reset so picture will back to normal again, some LCD TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.
1. Unplug the LCD TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the LCD TV power button for five seconds.
4. Plug the LCD TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the LCD TV is responding again.
6. Turn off the LCD TV and reconnect the devices.
7. Turn on the LCD TV.

Hope it may help you;

Regards;
VOTIT

Apr 23, 2009 | Vizio Gallevia GV42LF 42 in. LCD...

2 Answers

Tv screen went blank


sound like the inverter circuit board problem. check & replace back same part# inverter circuit board. hopefully could help!!

Dec 29, 2008 | Vizio L32 32 in. LCD HDTV

1 Answer

Discolored lines within picture 32 inch LCD TV


I have the same tv, if you turn up the brightness and turn down the contrast that should help a little bit.... Hope this helps

Aug 15, 2008 | Vizio L32 32 in. LCD HDTV

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Vizio Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73591 Answers

CoppellTVRepair.com

Level 3 Expert

749 Answers

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers

Are you a Vizio Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...