Question about Memorex MLT2022 20 in. EDTV-Ready LCD Television

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Power will not come on

The 20: wide lcd Memorex tv will not come on. It did this once before and I replaced the adapter. It came on with the new one and after a few months it went out again.

I called(fox international) to get another one and the manufacturer told me they discontinue them and gave me no advice on what other ones will work with it.

Do you have any ideas or suggestions?


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5 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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jhinsincity
  • 616 Answers

SOURCE: after few minutes LCD picture went black but sound works ok

most likely the power inverter, also suspect the p/s. best to have a trained tech check it. Julio at milleniumtvsvc@gmail.com

Posted on Jul 21, 2009

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  • 33 Answers

SOURCE: Bought Memorex MVD2059D 20

IF the Standby Red Light does not come on when you plug in the TV:


1) Check fuse on back panel next to power cord. Pull out cord and pop fuse holder out. On an ohmmeter, it should read 0(short)-that is a good fuse.

2) Check the fuse on power supply board next to power connector. It is soldered onto board.

3) Be careful with this step: With all boards screwed in place, plug in TV and then unplug it. Next take a Voltmeter set on 200 Volts and test large electrolytic cap in middle of board-should have @100-200 volts on it. Do not short the capacitor-big fireball flash explosion if you do!

If 1-3 test OK, then:

D10 is shorted. HER304 in middle of Power supply board near large electrolytic cap. Replace with same diode or Radio Shack 276-1144 3A 400PIV Diode. PLEASE BE CAREFUL WITH HIGH VOLTAGE PRESENT ON POWER SUPPLY BOARD. UNPLUG POWER CORD!!! OBSERVE PROPER POLARITY WHEN REPLACING DIODE-LOOK WHERE THE BAND IS.

Posted on Oct 06, 2009

jdvillanueva
  • 2098 Answers

SOURCE: I have a Memorex MLT3221

Hi,
This kind of symptoms indicated of fault either the bulb or the inverter board.
If the unit has a faulty bulb, dim picture will be the result and will detect by the feedback circuitry and will turn off the inverter board resulting to black picture. Busted bulb has a physical indication of fault like a blackened end and can easily identified.
Another caused of the symptoms is the faulty inverter board itself. If this is the case, troubleshooting is quite technical because you have to check the high voltage transformer, driver transistor, resistors, and capacitor. You may also replaced the entire board for your convenient, check the availability from your local Service Centers.

If you don't have necessary tools and test instrument and can't troubleshoot the unit yourself, I would advice you to look for a professional to isolate the problem.

Also, check if your unit is still under warranty/extended warranty period, avail it because the manufacturer will fix it for free. Opening the back cover will void the warranty.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.

Posted on Jun 25, 2011

diodeic
  • 1622 Answers

SOURCE: the picture goes blank after

Hello,

Problem is in either power supply or the Y-Sustain board.

The Y-Sustain is a relatively large board out of which go connections to the side of the display; it's therefore closer to either the left or the right side of the display, has at least one rather large heat sink on it and fat power cables connecting it to the main power supply.

Often there are fuses on that board - one or more. Check those.

if they are blown you can try to replace them, but expect them to blow again - usually the whole board needs to be replaced.

I hope this will hear to solve the problem....

Posted on Jun 27, 2011

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1 Answer

The picture goes blank after I turn on the power. stays on for about less then a minute but the sound is fine. this a small 19 0r 20 inch screen lcd tv by memorex


Hello,

Problem is in either power supply or the Y-Sustain board.

The Y-Sustain is a relatively large board out of which go connections to the side of the display; it's therefore closer to either the left or the right side of the display, has at least one rather large heat sink on it and fat power cables connecting it to the main power supply.

Often there are fuses on that board - one or more. Check those.

if they are blown you can try to replace them, but expect them to blow again - usually the whole board needs to be replaced.

I hope this will hear to solve the problem....

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D10 is shorted. HER304 in middle of Power supply board near large electrolytic cap. Replace with Radio Shack 276-1144 3A 400PIV Diode. PLEASE BE CAREFUL WITH HIGH VOLTAGE PRESENT ON POWER SUPPLY BOARD. UNPLUG POWER CORD!!! OBSERVE PROPER POLARITY WHEN REPLACING DIODE-LOOK WHERE THE BAND IS.

PS- I just fixed the same model this morning.

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I have the same TV. and same problem. I changed the power supply with a similar one that has the same plug. the TV came back to life. voila.

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