Question about Toymax Magnavox 37MF337B 37 in. LCD TV

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Looking for a 25v 2200uf capacitor for my magnavox 37 in tv

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Jose Ma DM.

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You can find it online at www.jameco.com (part no. 30533).

Posted on Feb 26, 2011

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rmcmillan194

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Parts Express and Newark electronics both carry this part for about $1.00 US

Posted on Mar 06, 2012

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0helpful
1answer

"I have a rarely used Magnavox 15MF400T/37 Series

Hi,

first, make sure the Tv is correctly plugged into the wall. You can try another outlet. If that doesn't work, then your Tv is certainly having a power problem.

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board. You might be lucky it's just a blow fuse. Also a defective transformer can cause your TV not to power on.

All these can be checked on the power supply board.......

But more often bad capacitors causes problem on the power supply board. I do not think the power board needs replacement, rather those defective capacitors is causing this issue. Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes).

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors). After replacing these capacitor(capacitors) most likely the normal operation will be restored. Or you can by a refurbished complete power board to save you some stress.......

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.
If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

Yours sincerely.

Elect_Comp.
0helpful
1answer

WHEN I TURN IT ON IT IS ON FOR JUST A FEW SECONDS AND GOES OFF

Look on the Deflection Board for Bad Capacitors CP150 CP114 CP120,They will be vented or Puffed up on Top 2200uf 16v use 25v,2200uf 35v Replace all 3 capacitors.
For replace Board Encompass Parts 1-800-638-3328
UED 1-800-657-648-6657
PTS for rebuild boards 1-800-844-7871
0helpful
1answer

Tv wont turn on at all

Hello,

The issue you describe is consistent with a power supply board issue. This is the board where the AC goes to. This problem may have occurred as a result of irregular power supply, or excess power supply or power surge.

The TV is receiving current but cannot circulate or transfer the current to other necessary part of the TV because of the defective power supply board.

I do not think it needs replacement, rather some defective capacitors are causing this issue.
Open unit up and take a look at the power supply board.You will probably see one or more electrolytic filter capacitors that are bulged up in the top-not perfectly flat like the others.

The value of these capacitors will be different, most likely they will be somewhere around-820 to 2200uF/25 V( or /10V sometimes)

You can replace them with same values but I would recommend the voltage rating to be higher(like 35V for an original 25V) for reliability purposes.

What happens is,these bulged top capacitors will cause a low and unfiltered DC voltage=main board will malfunction(the relay will keep clicking until the caps are holding enough charge to bring the voltage up over a threshold point).

You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like "mcmelectronics.com"(look for electrolytic capacitors).
After replacing these capacitor(capacitors) most likely the normal operation will be restored.

Note: There may be also some other causes for this symptom ,like a defective T con board ,or main board,but the bulged top capacitors are the most common cause for this issue.

If you don't know about TV repairers, take the TV to the nearest repairman to fix the fault for you. Also, note that TV stores a lot of current, so wait a while before opening the TV back cover.

I hope this helps.

Good luck.
0helpful
1answer

2200uf 25v can be replaced with a 2200uf 35 v for a magnavox lcd tv

Yes, just did one works great. If my research is right this circuit is actually 29 volts. destined to fail from the get go.
1helpful
1answer
1helpful
1answer

Magnavox 50ML8105D/17. We moved and the tv worked fine and now nothing. Just 2 red lights. Temp and Bulb. I replaced the bulb about 6 months ago. all I did was move.I carried it myself. I have checked and...

My magnavox died due to cheap capacitors on power supply board, a common problem for magnavox tv's from wot i found on net!
I replaced a 2200uf 10v electrolytic capacitor and it works now:)
My tv would take a few atempts to turn on and finally would not turn on,light stayed red!
i recommend visually checking for bulging or blown capacitors on power board, if it all looks good, try warming the board with a hair dryer, this might be just enough to get it to fire up, so at least u know the prob is in that area.
I looked for a 2200uf capacitor near the low voltage output from board n replaced it, got lucky first one, I was expecting to replace all the low voltage electrolytic capacitors.

Justin
16helpful
3answers

Magnavox 37" flat screen model no.37mf23id/37

Yes, he means 2200 microfarret (called uf from here on out). Another important concern when buying a replacement is the voltage. You need to get something that is at least 25v. I recommend a 35v or better. Another notable point is that this may not always fix the problem. As with mine, there was also a 1200uf (microfarret) 35v capacitor that was blown. You can tell this because they bulge at the top. I have both of these caps (2200uf 35v and 1200uf 35v) on order and they will be here tomorrow. If I do not post back here then they fixed the issue for me. I suspect that this will resolve the problem. Look for bulges on top of the caps. This is an indication that they are blown. Most all of you experiancing these symptoms will see the 2200uf cap bulging but you may also see others bulging too. If you do then you need to replace those too. No electrolitic capacitor should be bulging at the top so if its bulging its bad, and if its bad then your tv will definitely not work. Have fun.
29helpful
8answers

My magnavox 37mf321d 37 LCD tv

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.
2helpful
4answers

Magnavox Plasma HDTV Red light

I had a similar problem with my magnavox tv with the blinking light issue. Eventually it just didn't come one anymore. Looking at other forms they said the problem was a bad capacitor number 2074 located on the power supply board. When I opened my tv, I noticed that the capacitor was bulging and burnt up. I bought a new one labeled 2200uf 35v and did some solder to attach the new piece. Put the tv back together and it works like new. No more blinking light. I hope this helps.
0helpful
1answer

27'#27pts5441\37 serial#ya1a0505010585

Model # 27PT5441/37 needs Horiz Driver Kit ( L04.1U chassis)
Part # 483531057673 and replace 47mf/25v capacitor in horiz drive circuit....................................T.
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