20 Most Recent Dynex DX-LCD37 TV - Page 2 Questions & Answers

If the TV shuts off by itself, there should be some short circuit inside the circuit board. You have to troubleshoot it. If you visit this link,http://electronicshelponline.blogspot.com/ you will get some more details about how to troubleshoot main digital boards. It is very difficult to get pictures from this link, and to copy them here with descriptions, as this window does not allow me to do so. If you wish to know more, check this link.

Dynex DX-LCD37... | Answered on May 13, 2013

I would use the warranty for this problem. The part that need to be replaced can be somewhat expensive.
With the credit card statement, you can use that as a receipt.

Dynex DX-LCD37... | Answered on Apr 05, 2013

Found the problem -Emerson TV has only one circuit audio outlet and that
is being used with my HD Box - I have now spliced the red and white
connections from the Hd Box connection to TV - plugged
the spliced red and white connection into the red and white plugs and
its a done deal. Everything works just fine,

Dynex DX-LCD37... | Answered on Feb 07, 2013


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 from www.shopjimmy.com

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.


Dynex DX-LCD37... | Answered on Dec 29, 2012

Being that it is a Dynex, an off brand, i would toss the TV on craigslist and if you get $40 for it take the money and run. The general rule of thumb is that if you can repair the TV for less than half of the cost of a new set, you repair. If the repair cost is more than half of the cost a new set, you replace. But you also have to factor in the age of the set, brand, and whether or not it has sentimental value.

Dynex DX-LCD37... | Answered on Oct 29, 2012

I said the problem is on the push button on your TV not on remote,,..

Try to replace it to fix the problem..

Please rate!!

Dynex DX-LCD37... | Answered on Aug 25, 2012

the problem is the button (vol-) on your TV itself not on remote..

You need to replace it to fix the problem..

Please rate!!!

Dynex DX-LCD37... | Answered on Aug 25, 2012

IF you did not have the proper surge protector for your television it is very possible that it was damaged by the storm.

Dynex DX-LCD37... | Answered on Jul 11, 2012

Good day!!!!

That problem is usually cause of faulty capacitors on the power supply board..

Just follow this instruction to fix your TV..

1. Open the back cover of your TV.
2. Look at the power supply board..Its normally connected to the power cord..
3. After that,,try to look at the actual image of capacitors if it is bulged on the top so that you can easily determine the bad capacitors..
4. After that,,try to replaced the bad capacitors using soldering iron and soldering lead..replaced the capacitors only with the same type ratings and value..
5. Some of the capacitors not bulged so its better if have a capacitance meter

Dynex DX-LCD37... | Answered on Jun 19, 2012

if contrast etc not set incorrectly it may be a issue on the main board which processes all signal inside the set===a 37 inch might cost you more to fix than to replace.

Dynex DX-LCD37... | Answered on Mar 15, 2012


The only problem I see is the power supply faulty due to dropping voltage when it have a load or overheat..

That problem is commonly happen on all flat panel TV..It cause of faulty capacitors on the power supply..

I will give you the proper and safe repair procedure in this link www.fixya.com/users/chester_pendilton0

Just select any of my ads here and get my service..

see you there!!!

Dynex DX-LCD37... | Answered on Feb 04, 2012

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