Question about Televison & Video
At exactly midnight 2013-2014 my tv lost all audio. The picture onscreen seemed to have shifted and enlarged so that there is now a black panel on the left of the screen and some of the menu icons can not be viewed completely as they are below the bottom of the screen? I have tried factory reset and audio and picture settings but problem is still there? Frustrated and confused. TV is just on 2yrs old and not used as often as most tvs as Im at work most of my time.
Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts.
In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
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Posted on Jan 02, 2017
SOURCE: Connecting laptop audio to tv
i had the same issue with a thinkpad T61 which i was connecting using VGA and a audio jack going straqight from the headphone socket to the back of tv.
I had picture but no sound and i found that once connected the issue could be solved by rotating the projection setting on the laptop(Fn+F7). Basically switched back to laptop only display, then back to laptop and projector display again and teh sound just kicked in.
i think it's related to the projector setting on the laptop rather than an issue with the tv.
Posted on Nov 01, 2007
Your tv might be in showroom mode. Use the remote to open the main menu, go to picture, go to mode, go to power up and make sure that home is selected and not showroom. Many of the controls are disabled in showroom mode.
Posted on Jan 17, 2008
SOURCE: 42" magnavox plasma tv
I partly agree with imaliszewski the problem is Y buffers (upper & lower). There is 3 parts to the Y board (Y-main, Y-upper, and Y-lower). There was an issue with defective Y-buffers in a memo sent out by the Plasma manufacture. The problem could be that you just got a set of these defective buffers in your panel. Or as Imaliszewski stated a current problem. but if you replace the Y-buffers repace them as a set. If your TV goes out again after changing the buffers. The panel is causing the problem by drawing too much current. That was a Defect I found out why working in a Philips/Magnavox warranty repair facility.
Posted on Dec 13, 2008
SOURCE: no picture
It sounds like the backlight is out. If you can see a faint image that changes then this is the case. You either need to send in for repair or replace. It can if you are lucky be a connection. You can try removing the video cable and try another source or cable.
Posted on Jul 09, 2009
SOURCE: Black screen but have audio.
It's a pretty common problem. (If this is a plasma your post says lcd but it came up under plasma.) The no picture but sound problem is usually the y sus board. I've replaced 2 on mine now. The 680uf 35V capacitors usually are bulging because one of the power transistors went and took them out. This has happened to both of the y boards I had. One time the failing y board took out the buffer boards too, and once it did not. The fix is super simple and anyone with even the most rudimentary knowledge of computers or electronics can do the labor yourself. You should do the simple stuff first by just doing a quick test with a multimeter. Just check the power coming to the y board. After that you can just remove the y board by removing 3 cables and like 3 screws. Plug in the new board and it's done! You can source the parts from a place like shopjimmy or discount merchant. 3 boards were like 200 bucks. 1 board is like 100 bucks. Labor took me 15min. Think about that the next time an electronics repair place charges you 1000 dollars. Of course they check everything (Yeah right) and warranty their work (I don't) but if you check the service manual it states that this is the most common repair. Look for the Canadian manual online. Hope this helps!
Posted on Feb 23, 2010
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