20 Most Recent Toymax Magnavox 37MF231D 37 in. LCD TV Questions & Answers


What is the part number on the board itself?

Toymax Magnavox... | Answered on Jan 31, 2018


take it to mechanic,because it not repair by a common man at home..

Toymax Magnavox... | Answered on Jan 04, 2018


Sounds like The main power supply regulator section circuit fault. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
Search the site by type in the "brand name" to your device; [Exclude the model number], in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Toymax Magnavox... | Answered on Dec 06, 2017


You have a bad Capacitor. Look for a bulge on this cap. Location is 2074 and it is a 25volt 2200MF cap gone bad! And there may be another very close by that may also need replaced...you will see it ,and is bulged or skinned

Toymax Magnavox... | Answered on Jan 24, 2016


the power module is shot ,the same as mine was.. Cost me 285 to fix and now the color is gone.. Magnavox is junk.. scrap it and buy a Sony or Samsung..tom dwyre

Toymax Magnavox... | Answered on Jan 24, 2016


I just fixed mine that had a very similar symptom to this and it was a bad part on the main board. I made a video showing what part and how to replace it. I also added a link below to the part I ordered. L5973D STMicroelectronics Mouser

Toymax Magnavox... | Answered on Jan 24, 2016


Although a capacitor may look good, it may be weak or bad. Here is what you will have to do. Replace capacitor (location) 2074 which is a 25 volt 2200Mf at 105 degrees. Replace capacitor (location) 2081 which is a 35 volt 1200 Mf at 105 degrees. And you should change capacitor 2066 which is a 16 volt 10Mf at 105 degrees. Please be careful with the last cap mentioned. You can easily tear the PCB trace if you are not extremely careful. This should bring your TV back to life. Thanks for asking and show a few hands of support!

Toymax Magnavox... | Answered on Jan 24, 2016


  1. If the TV has a timer option, ensure it is disabled.
  2. Check the remote control to see if any of the buttons are stuck that may be interfering with the TV.
  3. Unplug the power cord of the TV from the AC wall outlet for 60 seconds.
  4. Plug the power cord back into the AC outlet.
  5. Attempt to turn on the TV.
  6. Remove all remote controls from the room where the TV is located.

OR

unplug all HDMI sources to see if a device is sending signals in the middle of the night

Toymax Magnavox... | Answered on Nov 12, 2015


Fault with main board. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/

Toymax Magnavox... | Answered on Aug 24, 2014


Hello, that set has a pair of inverter boards (back light boards) that usually are the cause, you may want to look for bad connections on the transformers and check the little white fuses to be sure their good. But these sets are getting old enough that I've seen the florescent tubes in the display go bad and cause the set to go into shutdown. If you want to try the bak light boards, I found these on E-bay for $20......thanks2f196b76-eae3-4989-b91a-2bf4ff61cb82.jpg

Toymax Magnavox... | Answered on Aug 14, 2014


Hello, I think it either had a bad back light board or one of the florescent tubes in the display has gone bad. As these sets get older, I see more of the florescent tubes going bad. I think there are 9 in that set, and all it takes is one of them to go out to cause the set to shut down. You may also look for a bad connection on the transformers on the back light board.....thanks, let me know

Toymax Magnavox... | Answered on Aug 07, 2014


Something's crossed, keep power lines and sound lines seporated double check wires in and out u could have bad sound wires and if so of home just buy new for a car get the RCA lines with a built in ground.

Toymax Magnavox... | Answered on Aug 07, 2014


Try website Ebay.com to buy these capacitors.

Toymax Magnavox... | Answered on Apr 27, 2014


Check and replace damaged component/s at it main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis.

Toymax Magnavox... | Answered on Apr 12, 2014


having problem with display . your lcd is get damaged change it with a new one

Toymax Magnavox... | Answered on Apr 12, 2014


http://www.hdtvsolutions.com/pdf/37mf231d-331d-321d.pdf

See page 30 onwards in the above PDF link..

Toymax Magnavox... | Answered on Apr 03, 2014


Sounds like main board fault. Contact any service technician to confirm. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/

Toymax Magnavox... | Answered on Feb 06, 2014

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