Question about Toymax Magnavox 37MF337B 37 in. LCD TV
Your tv has " capacitor flu".
Apparently, the companies in China, Taiwan, Indonesia, Bali, and a few others, made a whole bunch of capacitors that, knowing that they were junk, got put into tv's and monitors anyways.
The capacitors are supposed to have a life expectancy of around 25-30 years, but the junk ones are only lasting around 18 months or so.
It isn't anything that you did to the tv, it was doomed from the start.
About the only thing you can really do, is take it toa service point.
I suggest Fry's, or BestBuy, as they are the most trained for the repairs.
Before you get it fixed though, get an estimate of the repair costs.
I say this because the repairs may be as expensive as the cost of a new tv.
I hope this helps you out in understanding what happened, and good luck !
Posted on Mar 25, 2011
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Posted on Jan 02, 2017
SOURCE: Color screen
Subsequent to my Nov 14 2008 posting... shortly thereafter, I had returned my Sony BRAVIA KDL-46V25L1 (KDL-46V2500) to Costco. Then, (after trying a 52" Samsung, whose picture was nowhere near as good as Sony in High Def , but that is another story) I purchased a newer (one year newer) Sony BRAVIA KDL-46W4100 with 120 Mhz refresh rate.
What did I find?
The same purple/green image problem (“The Problem”) exists in the newer model Sony as well ! !
I believe the actual issue is with the TV, not the cable box, in that the TV contains faulty logic in in the way it handles switching from one input format to another. Turning the TV off and back on ‘resets’ the TV, and corrects the TV display (at least in the case of my Sony BRAVIA KDL-46V25L1 (KDL-46V2500) and Sony BRAVIA KDL-46W4100).
That action should have little impact on the cable box output.
My Shaw High Definition cable box has two output options for HD: Component RGB, or a DVI output. It came with an RGB cable, and a DVI / HDMI cable (DVI end for cable box, HDMI for TV).
When I use the Component RGB, my TV does not have “The Problem”; everything is fine with all the various cable box output settings I have tried.
When I use the DVI / HDMI cable, I get the “The Problem”.
“The Problem” only appears under one specific set of conditions as noted below....
My cable box can be configured to handle output for standard definition (SD) channels in one of four different formats: Nothing, 480i , 480p, or STRETCH. (where ‘Nothing’ lets the signal pass through as-is ).
ONLY when the cable box is configured to send SD channels as 480i does “The Problem” arise.
The TV has an issue (bug in video logic?) handling the switch from 1080i to 480i, only when using the DVI / HDMI cable between cable box and TV.
IE “The Problem” only seems to occur while using both the DVI/HDMI cable, AND when the cable box channel is changed from a high definition 1080i channel to a standard definition channel AND the cable box is set to convert the output of the SD channel to 480i .
By changing the cable box to send SD channels as ‘Nothing’, or 480P, or STRETCH , and “The Problem” goes away.
Or, using the Component RGB cables, and “The Problem” goes away !
Hope this helps.
Posted on Feb 03, 2009
I disagree with info provided, if screen of your LG lcd tv becomes green that means inverter board is working and lcd tv does not have convergence ICs.
Please unplug tv from ac wall socket for minute to get it reset, replug back in and turn it On and check its picture.
If still showing green screen then change input source with remote, if tv shows same green screen on all inputs that means its either lcd panel problem or digital signal processor got bad loacted on main board. Local tv repairman is needed to confirm and fix it.
Posted on Jul 23, 2010
SOURCE: screen keeps turning green
My Panasonic Plasma television started doing a green screen also. When it does it to me, is when I use the Last button or the Fav button. This is with Charter Communication. If I go back and forth, to various stations, then one station will turn green. So by trial and error, I found that when I clicked on a station, the screen would turn green. I had to push the Guide button, then the guide would come up, then push the Exit button, to get rid of the Guide, and then it would be on the station you wanted. If that does not work, then I have to just turn the TV off and turn it back on. It is rather annoying, however, as long as I can get rid of it, I can deal with it, instead of always turning the TV off. I don't know if this happens with all TV's or just Plasmas. If it does, I will not get another Plasma, if it happens with all TV's, maybe it is the remote, or the cable company. I just don't know.
Posted on Feb 18, 2011
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