How can i fix my memorex mvuc821 under cabinet tv ? there is a a frozen screen poping up saying to starting using my tv guardian and to reset it but i get no there's responds ..,also telling me that the display will show 5 times//
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Ok so the Tv is worth from the link below about $85 bucks
you might just as well replace it at this point because I think the power supply is gone bad https://www.ebay.com/i/282679660314?chn=ps
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.
you need a new ic found on main board #305 call memorex and they will send you one 1-877-363-6673 option #2 tell them what it is doing and they will send part to you and you put it in or take to shop to put in if you dont know electronics
You need a receiver for each TV you want to receive the reception on. Your dish receives the broadcast signal from the network and your receiver decodes and recodes the signal to view on your TV. The companies have created their own proprietary equipment to accomplish this to keep anyone and everyone from simply installing their own dish and receiving all of their broadcast channels for FREE. In the olden days when satellite and cable TV was new, that is exactly what people did. Remember those gigantic dishes some people installed in their yards? They would intercept the signals coming from the satellites and hook up directly to their TVs. The companies got smart and started to scramble the signals going up to the satellites to make these home owner dishes obsolete. Because the signals are scrambled, you now need a receiver to un-scramble the signal. I hope this helps and good luck. Please remember to vote if you found this helpful. Thanks.
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