Question about Westinghouse LTV-32w4 32.02 in. LCD HDTV
My problem is the Audio is not working at all. The LCD TV was working fine until 2 days ago when I turned the LCD TV on and there was no audio. I checked the User manual and did everything the manual suggested and it's still not working. After the first evening I turned the TV on and it did not work. The next morning I turned the TV on and the Audio was working. Then that evening I turned the TV on and it was not working again. Please any help will be appreciated. Thank you, Miggybee
SOURCE: LTV-27w7 blackscreen
Have you tried unplugging overnight? Sometimes mine gets screen garbage and that clears it up. Of course, now it says "Auto Scan Required" every time I power up. Maybe I should've grabbed that after Xmas 32" at Fry's for $400.
Posted on Dec 28, 2007
If the power light stays on green, I would look tward a backlight issue. If you can see any image at all then the backlight controler or the backlights are bad. If there is nothing then if could be a power supply overheating or an inverter failure. More than likely as the unit heats up a failed solder connection is loosing contact causing the screen to go black.
Posted on Feb 10, 2008
SOURCE: Westinghouse 32 in LCD TV
I have had this problem now for about six months with my Niko OPT-3211W. After replacing the Inverter card, VIT70002.00 as suggested nothing changed. I then read that it may be a couple of capacitors in the power supply, but I do not have the skills needed to replace them, nor do I want to pay to fix it. The solution is simple... turn on the TV and wait two to five minutes, then turn off the main power. I suggest using a power strip. Then turn the power back on in two to five seconds. The TV will come back on and it works great from then on. I thought that it was a freak thing, but it keeps working.
Posted on Aug 23, 2009
No quick fixes. A component such as a capacitor is heating up and failing. Sometimes a cracked solder connection will work fine until it heats up and no longer sustains the connection.
When the screen goes off, shine a very bright flashlight at the screen to see if the image is still there. In many cases, the problem is the screen backlight, which consists of several CCFL tubes (fluorescent lamps) and a circuit board called the inverter (similar to a lamp ballast).
If the image is there, but the backlight is off, then you just may need a new inverter board.
Posted on Oct 07, 2009
Thre 24vdc power supply or backlight inverter boards may have gone out, those are the places you ned to check first.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there are some troubleshoot you will have to do to find out the causes of the problem you are having.
Please read my guide to understand how LCD TV works.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Posted on Aug 12, 2010
Tips for a great answer:
Aug 09, 2014 | Sceptre Flat Panel Televisions
Feb 25, 2014 | JVC LT-46AM73 46 in. LCD HDTV
Nov 06, 2013 | Flat Panel Televisions
Feb 23, 2011 | Sanyo DP42848 LCD TV
Nov 11, 2009 | Ultra LCD30-500 Television
Oct 10, 2009 | Sharp Aquos LC-30HV4U 30 in. LCD HDTV
Jul 15, 2009 | Samsung LTN1565 15 in. HD-Ready LCD...
Mar 03, 2009 | Samsung LN46A850 LCD TV
Dec 31, 2008 | Samsung LN-T4061F 40 in. LCD HDTV
17 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: