This is a bad power supply and an easy fix. Their are several electrolytic capacitors on the power supply. If one is bad it will have a bulge on the top. Mine had a bad 2200uF and a bad 1200uF capacitor. About $7 worth of parts at Radio Shack. Radio Shack had the 2200uF but it was axial leads instead of radial. (leads come out of each end instead of one end) but It will still fit. They only had a 1000uf capacitor so I combined that with a 220uF capacitor and wired them in parallel. Make sure you put them in with the correct polarity.
I just used solution #1 with a 2200 microfarad electrolytic capacitor from Radio Shack to replace the bulged one I found. It had a very slight bulge in the top and a small deposit of black goo (electrolyte) on the top of the capacitor. Removed the bad one, replaced it with the new one (polarity in mind) and put it all back together. The problem is gone. Pressed the button and it started right up. 1.5 hours including the trip to Radio Shack.
Solution #1 is the ticket. Radio shack has some caps that work, not identical, but they fit. You must remove rear cover, remove power suppy board. radio shack only has 1000uf and 220uf caps, so solder togethter and install in parallel, the 2200uf is axial so lay it on it's side to install. $8.50 in parts, and about a hour time. You must squeeze the wings together and use caution on the connector just above the power supply, the rest of the connectors just pull apart.
I solved this by turning the power on then pressing buttons on the remote randomly. Ofcourse I tried logigal buttons first but when that did not work I just started pushing them all and eventually I noticed that the green light turned solid and a moment later my picture was available. Sounds stupid but it worked.
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 100 times.
Re: My magnavox 37mf321d 37 LCD tv
The general problem with LCD type TV's is that the power supply fails.
They are very sophisticated designs that are difficult to troubleshoot
and generally best to just replace the module, but sometimes there is
visible damage in some of the electrolytic capacitors (visibly bulged)
and higher voltage rated parts can be substituted.
Hope Ya Fix It
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The flashing green light is likely indicative of a self-test failure, indicating the TV has detected some sort of internal fault. With no picture or sound, one strong suspect is the power supply. Flat-panel TV's have an internal DC power supply that converts the inbound AC current, and when these fail, or are unable to supply a minimum level of power to the set, it can behave as you describe, providing only enough power for the green light to illuminate.
I had a similar problem to this yesterday. Tv is same Toshiba model as you mentioned about 4 months old. In my case, after the TV working perfectly following installation, the standby LED on the front (the one that is red on standby and green when on) went to a flashing orange (after switching on from standby) and the picture disappeared although the sound remained OK. I was unable to get any response from the setup or menu on the remote, otherwise I would have tried resetting the TV. Regardless of how much switching off/on (including disconnecting the powerlead and leaving for few minutes), disconnecting all peripherals, etc., nothing helped. I looked up Toshiba's web site and under support they basically suggest switching off the TV and restarting using the onset buttons (not the remote) and pressing the menu button (again the one on the set (not the remote) and if you could get the menu box to appear then reset to default settings. I tried this but the results were the same. I therefore thought the TV was defective. However, after much frustration I did the following (I think): 1) Disconnect everything from the TV 2) Powered up from the mains switch whilst keeping BOTH the startup and menu buttons on the side of the TV pressed down. The result in my case was that the standby led and one of the two beside it flashed green simultaneously. However, when the buttons were released, the TV started up the same (flashing LED orange and sound no picture). 3) Pretty well defeated at this point, after doing the procedure at (2) several times with the same results, I somehow thought of pressing the standby button on the remote either whilst the two buttons on the set were depressed or just after they were released. I am afraid I cannot remember which and cannot replicate the problem as I don't know what caused it in the first place. 4) The TV then started normally ( no reception as I had not aerial connected, etc.,) but I was able to gain access to the screen menu/setup buttons via the remote which were in French rather than English. However, after reconnecting everyrthing the TV has worked fine (obviously after resetting the language via the menu). I am sorry I cannot be more precise but I hope this might be of help to someone with a similar problem.
I had exactly the same problem When the TV was switched on all I could
see was a flashing green light. After cheching the TV internals and not
seeing a problem including the power supply unit which looked and
checked normal. Here is what I did to get M TV working again.
Disconnect it from the power supply. Hold down all the buttons
simultaneously i.e. the on/off, the volume, the programme, menu
buttons, all of them simultaneously and Plug it into the power supply
Lo and behold My TV jumped back into life after an absence of about 4 weeks.
Try it yourself exactly as above.
I have the same TV and had the exact same problem. I had to replace the lamp and power supply in mine to get it to work. Unfortunately...its next to impossible to find the parts, at least the power supply. I found the lamp online and I was lucky to get the online store I purchased the TV from to send me a power supply from one of thier stocked models, but only after I turned them into the FTC Consumer Protection. The TV was sold to me as a closeout but new, as it turned out the tv was a refurb, thats the only way I could get the parts I needed.
Hope this helps and if you need any other information please let me know.
Hi i have a pilips 42" plasma tv (42PF5320/79) i can hear clicking the green light is on and the tv will go into stand by if i press the power button and the red light also comes on .I have turned it on and off and it works now nothing just the light on the front as if its working looking at the back through the slots two green lights come on then the tv clicks and they turn off,thanks