Toymax Magnavox 37MF231D 37 in. LCD TV - Answered Questions & Fixed issues

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Need to know value of component in spot 6079 on power supply?

What is the part number on the board itself?
1/31/2018 8:30:50 PM • Toymax Magnavox... • Answered on Jan 31, 2018 • 163 views
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TV is slow to start up. Green light blinks for a long time.

take it to mechanic,because it not repair by a common man at home..
1/4/2018 7:29:30 AM • Toymax Magnavox... • Answered on Jan 04, 2018 • 102 views
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Magnavox 37MF231d/37 LCD TV cycling thru colors

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.
12/6/2017 11:43:57 AM • Toymax Magnavox... • Answered on Dec 06, 2017 • 245 views
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I have a Magnavox 37MF32id137 we turned the tv off

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
1/24/2016 9:26:03 PM • Toymax Magnavox... • Answered on Jan 24, 2016 • 892 views
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Magnavox 37mf231d will not turn on, only have steady flashing led light-continuous

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
1/24/2016 9:17:35 PM • Toymax Magnavox... • Answered on Jan 24, 2016 • 196 views
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TV turns on in the middle of the night

  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
11/12/2015 10:39:22 PM • Toymax Magnavox... • Answered on Nov 12, 2015 • 91 views
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On my Magnavox 37mf231d tv when I turn it on, the backlights turn on for about 3-4 seconds, then turns off. There is no blinking green light, there is no green light at all. It seems like it is trying

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/
8/24/2014 5:34:31 AM • Toymax Magnavox... • Answered on Aug 24, 2014 • 120 views
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The master lcd inverter bd. has a red led that goes out after few seconds

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
8/14/2014 9:37:00 AM • Toymax Magnavox... • Answered on Aug 14, 2014 • 57 views
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Per magnavox 37mf231d I switched tcon board, and put an older main board that I had laying around, now the tv tries to turn on, there is a background light for about 5 seconds and then it shuts off.

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
8/7/2014 11:15:57 PM • Toymax Magnavox... • Answered on Aug 07, 2014 • 88 views
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Have a humming noise in both of the speakers

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.
8/7/2014 2:01:31 AM • Toymax Magnavox... • Answered on Aug 07, 2014 • 92 views
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One day tv was working fine next day no pics or sound.

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.
4/12/2014 10:02:49 AM • Toymax Magnavox... • Answered on Apr 12, 2014 • 35 views
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LOCATION OF USB PORT

http://www.hdtvsolutions.com/pdf/37mf231d-331d-321d.pdf See page 30 onwards in the above PDF link..
4/3/2014 9:36:51 PM • Toymax Magnavox... • Answered on Apr 03, 2014 • 67 views
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My magnavox 32 in will not stay on.

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/
2/6/2014 3:08:17 AM • Toymax Magnavox... • Answered on Feb 06, 2014 • 54 views
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Lights only go on standby

How many times this standby/power light blinks at one time switch ON? Count it carefully. These blinks are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/. If the blinks continues, and non-stop, the fault should be with its main system control IC, and with the memory IC.
12/13/2013 6:29:33 PM • Toymax Magnavox... • Answered on Dec 13, 2013 • 107 views
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Magnavox 37" model 37mf231d-37 wont tun on when i hit power button the screen lights up for a secongd and turns right back to black and the power button green light comes on and right back off I found

Your power supply is weak. If you think you can repair this I will tell you how. If you cannot do this,find someone who works electronics and share this repair. Two capacitors are bad. When pulling the back cover off, you may see one or two capacitors bulged. Even if they look good....replace these capacitors. The locations are numbered and, the capacitor having a value and temperature of 105 degrees.. Location of the first capacitor is 2074, value 25volts @ 2200 mf @ 105 degrees and will most certainly be bulged. The next capacitor may look fine....replace it. That capacitor location is 2066, value is 35 volts @ 1200mf @ 105 degrees. When you replace these, please be sure to get the polarity (positive leg and negative leg) of these capacitors seated correctly...this is a must. This will correct your TV. You will save lots of money, because you asked. Thanks for listening ..good luck...we will be here for your next repair.
2/8/2013 5:56:06 AM • Toymax Magnavox... • Answered on Feb 08, 2013 • 181 views
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Magnavox 37MF321D/37. suddenly just shut off and would not turn back on, no blinking green light nothing!

Price the board first and then decide, I fix these in our shop but do not like or enjoy working on them at all.
12/20/2012 3:32:27 AM • Toymax Magnavox... • Answered on Dec 20, 2012 • 606 views
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I need the part number for position 7003 in a

I THINK, repeat THINK, it is an L5973. Here is a link to a spec sheet:http://www.futureelectronics.com/en/technologies/semiconductors/analog/regulators-reference/switching-regulators/Pages/3327194-L5973D.aspx?IM=0I say i think, because mine is almost impossible to read. I haven't replaced it yet, waiting on my next trip to the city for parts.Good luck.
11/17/2012 9:07:00 PM • Toymax Magnavox... • Answered on Nov 17, 2012 • 120 views
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Magnavox 37inch tv needs power supply. I Live in Brooklyn, n.y and Monroe, N.J.

Hello,You can get a repair kit for your power supply board here:http://www.ccl-la.com/catalog/product_info.php?products_id=216There is also a repair service for that board available here:http://www.ccl-la.com/blog/index.php/service-request-form/I hope this helps,BuddyMc
10/24/2012 3:42:59 PM • Toymax Magnavox... • Answered on Oct 24, 2012 • 81 views
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LCD TV won't turn on- power light flashing

This is a very common symptom of a failure in the power supply board. The failure is caused by parts called capacitors. Here is a link to information on what needs to be replace on the power supply board to repair it. It is an easy repair, takes about 20 minutes.http://www.ccl-la.com/catalog/product_info.php?cPath=95_97&products_id=216
8/11/2012 3:56:37 PM • Toymax Magnavox... • Answered on Aug 11, 2012 • 426 views
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Magnavox_37mf231d replaced caps still does not work

Please take this steps on how to determine the problem:1. Open the back cover.2. Check the power supply output...It should have 5vdc for the main board..12vdc or 16vdc for the audio and 24vdc for the back-light inverter..3. If those 3 voltage supplies have encountered voltage drop...The problem could be on power supply board..4. If the power supply output is normal..The problem could be on the main board...5. If the problem is power supply you should check if the capacitors are bulged on the top and try to replaced it..If you can't do that you can purchased new power supply board..6. If the problem is on main board there is no D.I.Y repair on that so you need to buy a new main board that fits to your TV..Hope this solution will be helpful..
6/14/2012 11:55:18 AM • Toymax Magnavox... • Answered on Jun 14, 2012 • 104 views
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