Question about Astar LTV-32HBG 32 in. LCD Television

1 Answer

NO PICTURE white screen with no video or sound

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 40 Answers

Hello,
Have you check the power supply first? that could be the problem.
Please call 323-767-6030 I will go through the trouble-shooting, with you.
Thank you,
Ivan

Posted on Mar 12, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

White screen


T'Con board fault. Check and replace it. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Dec 17, 2015 | LG Flat Panel Televisions

Tip

White Raster with thin lines; Sound Ok.


White raster with retrace lines: No picture, Sound OK
(picture tube based telivisions.)

It is a common fault to occur in most of the CRT based telvisions, regardless of which brand it is. There will be sound OK, and a bright screen with thin white horizontal lines across; at about an inch space, all over the screen area. This fault may occur along with colur shades also, like blue screen with white retrace line, red screen with white retrace lines, green screen with white retrace lines. Let us take the first case. A white raster with white thin retrace line acorss the screen. These are call vertcial retrace lines technically. To make it mor understand, we have to go to some picture tube electrode details. There are three colour cathodes for a colour picture tube, Red, Blue and Green. Two girds are there called Focus and Screen. Focus grid is supplied with focus voltage which in turn determine the cocus of picture, and screen grid is supplied with screen volrage which determine the emission of the picture tube; in short. There is a final anode to all the picture tubes, which supplied with Extra High Tension voltage, can be located at the top side of the picture tube, to which the EHT voltage from LOT is connected with the help of rubber ****** and clip. Without these three voltages, EHT, Screen and Fcous, no raster will be produced. Therefore in our case, there is a raster, so, horizontal output section including Line Output Transformer [LOT] is functioning well, and as far as sound is there, tuner and video IF section are working well. In fact, all other section except, video output section is working properly.
There are three cathode points on the base card, marked as Bk, Rk and Gk. Check the voltages of these three cathodes. In our case, it will be very low or approximately equal to zero. When cathode voltages goes low, emission of the CRT increases, is the reason. There must be a voltage between 120 and 135VDC at these points. Find out the reason for this voltage drop is the next step. The video drive voltages in most TVs comes from LOT windings, after rectification and filtering. There will be one reisitor of low value, say one Ohms or so, will be connected series with this winding, in between diode and winding. Check the voltage at the cathode of this rectifier diode first. If found low replace the diode and the smoothin capcitor. The smoothing capacitor will be between 33 and 47MFD 250VDC rating. Replace both of them. If there is volatge, say 200VDC or so, check whether this voltage comes to the CRT base board or not, If not, check the conducting wire, serial resistors; if used for open. There is no chance of transistor shortage at this time as the raster we see is white. If raser we see have a specific colour predominent, that is green, blue or red, check the revalent video out transistors and replace it. It is best to replace all the three video output transisors at the same time with same batch and number.

on Apr 18, 2011 | Flat Panel Televisions

1 Answer

White screen


"White screen" on Samsung LED TV - Forums - CNET

www.cnet.com > Forums > Samsung

CNETJun 11, 2015 - I guess I better send it to the repair shop and prepare myself for a long break ... Hello i have experienced the white screen tv as well, i got mine as part of a deal ... Samsung LCD Green Screen
Jun 11, 2015
Samsung DLP TV w/ White Dots on Screen
Jun 11, 2015
Samsung DLP white dots fix?
Apr 10, 2012
Samsung LCD TV now bright white screen
Aug 1, 2011
More results from www.cnet.com

EASY Common BLANK SCREEN FIX FOR LCD SERVICE ...

? 4:42
https://www.youtube.com/watch?v=SARGnOExL8c
May 11, 2013 - Uploaded by Tampatec
EASY Common LCD REPAIR Blank WHITE DISTORTED VIDEO... LCD & LED TV Repair - No Image & Blank Black ScreenFlashlight Test ...

Samsung TV "white screen" repair - YouTube




Dec 16, 2015 | Flat Panel Televisions

1 Answer

My Sylvania 32" just had the entire screen go


My Sylvania 32" just had the entire screen go white. There was still sound but the picture was gone and just the white screen. Any ideas?

Oct 11, 2011 | Sylvania 32 in. Diagonal LCD HDTV

1 Answer

I have a Sony tv and Panasonic Video Recorder. I have reconnected after move and now get Sound but no Picture when I try the Video tapes. When I press the Video Plus to record it takes me to an AV2 screen...


may be the audio/video cord(wire) are not put in the right sockets, try to reconnect & see yellow wire connected to yellow socket, white to white & red to red. otherwise replace the core.

Aug 19, 2011 | Flat Panel Televisions

1 Answer

My screen is grey/white and no picture


The LCD controller (T-Con board) or main board needs to be replace to fix the no video failure.
Check this link to find parts for your LCD.

May 22, 2010 | Dynex DX-LCD37 TV

1 Answer

No sound on play back using camcorder on technika tv


Looks like you are using Component cables. There are five cables. The first three cables are Green,Blue and Red. These are the ones that are molded next to each other and are the Video signal cables. The other two cables are Red and White and they are the audio cables.
First to correctly hook up these cables you need to Connect (Match) Color for Color. (Green to Green, Blue to Blue, and Red to Red. To tell if you have correctly connected the Video cables is to look at the screen. If the picture looks ok (Normal with no colors missing then you have connected the video cables correctly). If you see a missing color meaning red, then switch the Red cables. The picture should be ok now. The remaining two cables are the Red and White cables. The "Red cable" is for the "Right" audio input and the "White" cable is for the "Left" audio Input". If all is connected correctly then you should have a good picture and Left and Right audio.

Jul 05, 2009 | Flat Panel Televisions

1 Answer

No picture (white screen)...


its a video cable or LCD connectors. remove and re-connect again.

May 27, 2009 | Vizio L6 20.1 in. HD-Ready LCD Television

1 Answer

No picture -- white screen -- no sound


With no video and the the colored stripes, it sounds like the LVDS cable needs to be reconnected to the LCD control board or the control board itself is bad. If the unit is only 3-4 months old, it should be covered by warranty

Nov 18, 2008 | Sharp Aquos LC-37GD6U 37 in. LCD HDTV

Not finding what you are looking for?
Astar LTV-32HBG 32 in. LCD Television Logo

Related Topics:

135 people viewed this question

Ask a Question

Usually answered in minutes!

Top Astar Flat Panel Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

The Knight
The Knight

Level 3 Expert

68301 Answers

Cindy Wells

Level 3 Expert

4757 Answers

Are you an Astar Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...