Question about Jwin JV-TV2042 5.5 in. Portable Television

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It has not the C405 capacitor

Hello I bought a new JV-TV2042 system, when I plugged the cameras and connect it didn´t operate (the screen doesn´t turn on), I bougth it in a city and delivery to a 280 Km another city, I ask to the technician what happen and we can see the board has not the C405 capacitor, could you help me to know the value to insert and solder it, we think it was a assembled mistake.


For any answer please send me an email to


Thanks for your help....


Rene Ayala  

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Re: it has not the C405 capacitor

If your are a technician , you will be able to do that.
remove the back, carefully remove the main board, plug the tv. with the multimeter on DC voltage, check the voltage at that point . If you find a 10V , the capacitor will be 16V, if 12V the capacitor will be 25V. in general the capacitor have to be electrolytic and have more than 470microfard.

Posted on Aug 14, 2009

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I have a Memorex MVUC821 8" TFT DVD Player. Upon power on, the red standby light turn green. The unit checks to see if a dvd is the player and then cycles the dvd player since not disk is present...


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.
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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.

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You can buy these capacitors at any Fry's or Radioshack store or you can order them online at vendors like ""(look for electrolytic capacitors).
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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.

Compliments of the season.

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