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Loss of station memory on Daewoo VCR

Daewoo VCR model DV-K985P has to be retuned after slightest power cut. Remember having a TV with same problem years ago. Assume has an inbuilt battery that needs replacing. How do i find it? Where can I get a replacement?

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It is a capacitor numbered C501 and it's 0.01uf 5.5v.
You have to remove the mechanical part to get to the board.
G.A. Sheffield

Posted on Mar 05, 2008

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Most of the late VCRs (since the '90s) didn't use a backup battery, but instead had a special high value electrolytic capacitor which serves as a temporary voltage source to maintain program info. If by chance it has a battery backup, I'd guess it is a button cell, something like what is used in a wrist watch. You'd find it on the main circuit board- perhaps soldered in. If it has the capacitor, perhaps the cap. is bad. This also will likely reside on the main circuit board. This may be shaped like a button cell also, but will have a plastic wraparound label with the voltage and farad values on it- perhaps like 1 farad 3 volt or something similiar. If someone has a more accurate diagnosis...

Posted on Oct 04, 2007


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TV will not change or show channels

You don't say whether you have had it working at that location before. When you move a TV between houses, it is necessary to retune your channels. Would recommend returning to first time installation.
If you haven't moved it recently there are other reasons why this might happen. 1) There is damage to your aerial caused by weather, 2) A power surge or loss of power to the memory battery on your video board has wiped the frequency information from the memory [the memory battery is like a watch battery that keeps a small amount of power going through the system to it can keep your settings when unplugged], 3) The internal tuner board for your TV has packed in.
If '1' is the case, obviously you need your aerial fixed; if '2' is the case you need to retune again [you'll know if the battery is dead if you have to retune every time you turn on the TV]; if '3' is the case you either need a replacement AV board or someone to solder a replacement tuner board to it.

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I’m happy to help further over the phone at

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