Question about Televison & Video

1 Answer

Lcd dv3250 not working

No picture nosound only on screen

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 395 Answers

The fact that you have on screen display tells me that you are on a blank digital channel, or input with no signal. check to see if this is so on all of your inputs DVD, VCR, Cable, Sat box... if there is no signal still, replace the scaler board.
here's the four basic components to a LCD tv.
1. panel. there is on board electronic inside not componet level repaired.
2. power supply. this feeds power to the unit 5V, 24V, and 15V. the 5V is the standby voltage while the 24V supply the inverters.
3. the inverters. this is a DC to DC inverer used to light the lamp. these and not component level repaired.
4. the scaler board. this is the board that runs the show. it sends the signal to the panel to paint the picture.also sends commands to the power supply to turn on the inverters. this board is definatly not component level repaired. most all of the boards can not be repaired at the component level, power supply may be the only one, but not all power supplies can be.
there is one other part to the set that does have failures and that is the cable connecting the panel to the scaler. this is the LVDS cable. sometimes just reseting the cable can solve many problems.
so based on this info your panel is working because you have onscreen display. your iverters are working because without the lamps you would not see the on screen. your power supply is working because you have inverters working. and the only thing left is the scaler this provides the on screen so we know that it is at least partly working.

Posted on Jan 20, 2008

Ad

1 Suggested Answer

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 there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Had blinking red light, replaced power board, same problem, replace the siene board, excellent picture but ,nosound. Returned to factory settings, no joy.


The audio is getting to the speakers from the AV terminal board. I would suggest to check the audio settings on your TV even after doing factory settings.

Sep 01, 2015 | Toshiba 42HL196 42 in. LCD HDTV

1 Answer

Sharp Lc-26sb24u white screen with sound


You will get a white screen when you unplug the t-con from the main board. Doing so removes power to the LCD panel. Verify that all of your voltages from the power supply are correct. If they are, I'd look at the t-con board. It sounds like there is a problem with the t-con that is pulling down the main board.

May 11, 2012 | Sharp LC Televison & Video

1 Answer

The powercomes on bt nosound or picture


Check your TV seelected correct input source

Jul 13, 2009 | Proscan 42LA45H 42 in. LCD TV

1 Answer

My syntax Olevia LT30 HV turned on and displayed blue screen for 1-3 sec and than no signal nosound??any advice seems to be inverter issue.


Since you lost both sound and picture, I would suggest to take a look at the power supply for bad filter capacitors, look for bulging on the top of capacitors. If the backlight inverter board is bad you should still get the sound.

Apr 23, 2009 | Syntax LT30HV 30 in. HD-Ready LCD...

2 Answers

BEN Q DV3250 SCREEN PROBLEM


what are you hooking up to this t.v? weither it be a computer, satellite, cable, ect...

Feb 28, 2009 | BenQ DV3250 Television

1 Answer

BenQ LCD DV3250


Hi...there,
Well, have you try plugged into a different port like a DVI port. If you don't got one try replaced with another VGA cable.

Sep 26, 2008 | BenQ FP71G 17" LCD Monitor

1 Answer

Have power but no sound or picture


Goto www.magnavoxhelp.com. They have a kit that will fix this common problem.

Jul 02, 2008 | Philips 50P8341 50" Rear Projection...

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

Related Topics:

445 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75846 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Marvin
Marvin

Level 3 Expert

82313 Answers

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

Answer questions

Manuals & User Guides

Loading...