we have a magnavox flatscreen model #50mf231d/37 recently ou...

we have a magnavox flatscreen model #50mf231d/37 recently our tv has been not wanting to turn on all the time and now not at all we replaced the compacitors and still nothing any ideas on what else it could be

replace power supply and small signal board should fix problem

where can i find a parts guide? an is it expensive

some times magnavox puts there part numbers on the boards.ussually something like 31390000000.if you can trouble shoot the power supply with a meter to see what volages are there then you may only need a main signal board.this is a lcd t.v right sounds it by the part number.could also try a software upgrade or at least check the software in the menu if the t.v. stays on

its a plasma is there a difference in parts wise? im sure there is but would the numbers be the same with lcd and plasma? cant do a software upgrade tv want turn on you hear the relays click but no lights come on at all

I have the same problem and I have the same model t.v. It used to come on every now and then but Now I cant get it on at all. I here the clicks when I unplug it and plug it back up but It wont come on anymore the green light will come on the front but that's about it..no picture or sound this is really making me angry...one day I moved it to a different outlet and it worked for a while(about a week or two) but now that doesnt work either.

Replace 2 capacitors on the power supply board (the board where the ac cord plugs in) They are side by side. Both are the same value. 3,300 uf (microfarad), 16 volt if I remember right. They are EASY to see. The tops of the bad capacitors are bulged outward. The tops of every other capacitor on the board will be smooth and flat.
Then go to www.support.phillips.com and download the software upgrade for your model onto a flashdrive and plug it into your tv. Now cut the tv on and the software upgrade will take place automatically (It's best to select the "auto" part at phillips.com when you download the software).The tv will display "upgrade successful" and prompt you to remove the flashdrive and restart the tv.
I have repaired 3 so far. All required the same repair. All sets were 2 years old. Good luck Barney in Raleigh, NC USA

Hello in Raleigh it is a 3,300 uf (microfarad), 10 volt not 16volt. (Question: makes a difference?)

It is the board right in the middle of the back of the screen, has 8 screws and 7 connectors. The 2 capacitors are bulky and shows obvious overheat. I'm on my way to Radio-Shack to get me a couple.

Note: replace the board for a new one will not warranty that the new board will not have the same defect after a while unless it has a revision update fixing the issue and to avoid this lemon.

I understand that but we have replaced the capacitors already an when you plug it back in you can hear the relays click but there are no lights now how can you upload a new software or whatever if you cant get it to turn on we had lights before we replaced them now its just blank nothing at all im clueless here any suggestions something more concrete just seems like gettin the same information but once again we are not gettin any lights to come on the front of the tv but we have changed the capacitors !!!! Anything else to be done that i dont know about

Did radio shack have the parts. The one I called did not have any listed

were did you get the capacitors from?

I had the same problem with my tv (50mf231d/37) It took longer and longer to come on then I had to down the turn on and off thing for a while. then it took longer and longer to get it to com on. finally one day i couldnt get it come on at all after turn it on and of for about 65 mins. I read all over the net. everyone said the same thing...go replace the capacitors...so finally I did. Shop replaced then capacitors with the same parts 3300,10volts. Today I put the board back in when I turn the t.v on I see the green light and that is it I dont here a click or see a read flash ...why is that there is no picture or sound. what could that be someone tell me my next step please

I'm getting ready to replace my capacitors right now. The only suggestion I can add is make sure the polarity is correct when installing the new capacitors?? I'll check in again with my results...
Todd

I had a "professional" do the repair and IO assume that he got the polarity right. I really done know I guesss I could alweays takeit to another shop tomorrow and see whatthey say ??? it should be a way for them to test the board without me bringing the entire tv in right?

I tell you what when this is over I will try to sell this tv and I will never buy another philips magnavox product again I swear.... this has just been awful I havent even watch this tv a full year

I have the same tv that I got for free. So I bought new "caps" for it from Newark Industries for a couple bucks each. It works great without a software upgrade, but sometimes it'll go black for about 15 seconds. Only about once a week. Not sure why. If anyone has questions about the "cap" procedure, let me know.

my problem is very simular to the others. i can hear excellent sound but the screen is black.(no red color or flashing ) the blue light at the bottom next to the power button stays on and i can hear two clicks. Some one told me i might need to replace the bulb? I took the back panel off and noticed what seemed to be a small christmas tree like bulb. i didnt touch anything and yes i unplugged it first.....please help! I am not electronically savy at alllllll : )