20 Most Recent Toymax Magnavox 37MF331D 37 in. LCD TV Questions & Answers


Fault with the main power supply regulator section. Either it will be on a separate board, or on the part of its 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. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

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


Fault with the main power supply regulator section. Either it will be on a separate board, or on the part of its 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. 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 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.

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


manual. walk thrue the the maual and with you temote, and then fabricreset, are you a mongole or so , reading is hard

Toymax Magnavox... | Answered on Nov 02, 2014


Fault with main board. Damaged component/s at it. 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/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

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


check the bulb inside LCD TV...

Toymax Magnavox... | Answered on Dec 11, 2013


aside from checking connections to see they are right, if using a box remove it and the set from power for a while and then power back to see if it will help or not.

Toymax Magnavox... | Answered on Dec 13, 2012


Hello,

The typical cause of power up problems in a failure of the power supply filter capacitors. The board can be repaired by replacing the bad components. Below is a picture of the power supply board with the bad capacitors circled and below that is a link to a it that is available with the correct parts to rebuild that board.


10_1_2012_3_58_30_pm.jpg

http://www.ccl-la.com/catalog/product_info.php?products_id=216


I hope this helps you out,
BuddyMc

Toymax Magnavox... | Answered on Oct 01, 2012


For magnavox/Philips model #37mf331d/37 part# is 313815864961.

Toymax Magnavox... | Answered on Sep 24, 2012


send a email to customerservice@tvrepairworld.com and include your model number and indicate you need the caps for the power supply. They will have them available.

Toymax Magnavox... | Answered on Aug 05, 2012


Bad capacitors...location 2074 which is 25volt 2200Mf and cap location 2081 which is 35 volts 1200Mf.

Toymax Magnavox... | Answered on Aug 04, 2012


Absolutely NO! Although it may be close, you will find a poor startup just as if the set was still bad. The capacitor you need is of course a 25 volt 1200MF. In this case a 35 volt 1200MF will work. I would suggest in this case a next up voltage with the correct MF. In this case the best sub is the 35 volt 1200MF. Check out Matelectronics.com. or MCM Electronics.com or Mouser Electronics .com. If you have a local Electronic supply store they may have what you need. I do not believe you will find it at Radio Shack. Thanks for asking and show a few hands of support!

Toymax Magnavox... | Answered on Jul 18, 2012


Replace cap location 2074 which is 25 volt 2200Mf and cap location 2081 which is 35 volt 1200Mf. You can visually see these when you remove the back...Good Luck! PS...be sure they are rated at 105 degrees!!!!

Toymax Magnavox... | Answered on Apr 12, 2012


You must remove the tv from its case, there are fuses and fuse links all over the place on the many circuit boards inside the tv.

Toymax Magnavox... | Answered on Jan 17, 2012


You have a bad capacitor. It will be a 25volt,2200MF, 105 degrees...and it will be bulged! Results will be a AMAZING! Thanks for asking!

Toymax Magnavox... | Answered on Dec 29, 2011


I had the same problem with a Magnavox LCD TV. It would not turn on and the light on the external PSU flashed. I found a replacement 12V 5A power supply on EBAY. It brought the set back to life.

Toymax Magnavox... | Answered on Nov 20, 2011


There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

Toymax Magnavox... | Answered on Nov 20, 2011

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