I have had this problem, and found this on FixYa during a google query. The only other solution caused me to stop and check it out, but there is not enough information to really repair the receiver.
I found another page through another forum that showed me how to fix my receiver, and I now have a functioning remote control after many years without.
The original page with all the info is : http://mysite.verizon.net/amp68/ . I reproduce it here as we all know web pages can easily disappear. I make no claim other than the fix worked for me, too.
I quote his page below:
How to fix the remote control problem with the Kenwood VR-507 Receiver
The Kenwood VR-507 receiver has a very high remote control failure
rate. The issue is not with the remote control itself, but with the IR
receiver on circuit board inside the receiver.
Well, my friends, there is HOPE! A simple resolder of the three pins
for the IR receiver will quite happily fix the problem quite
premanently.
All you need to do, is remove all the screws that holds the cover on, and remove it.
The you can remove the front of the receiver from the frame and lay
it down somewhere to work on. There are some wires you will need to
disconnect. Make sure you mark them, so that you reconnect the to
proper spot later.
Then, looking at the handy picture below, you should see exactly
which pins need to be resoldered! I have sent this picture to 4
different people and resoldering has fixed the problem for ALL of them.
Here is the picture of part of the circuit board:
Once you're done resoldering, put it together, hook it up, grab a beer and the remote and resume proper couch potato stance!
I've just fixed mine after seeing others with the same problem. Due to thermal expansion, the solder joints on the main circuit board controlling the remote have probably separated. Remove the receiver's cover and use a magnifying glass to inspect the solder for cracks. They are a group of three joints (1 mm apart) in a horizontal line about 1/3 of the way from the left (looking from the rear) and about 3/4 of the way up. Good luck!
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My Vr-505 senses the remote intermittently. It'll work for 10 minutes, then quit. Next time, it might not work at all. It's been like this for over a year, and I thought it was the remote itself, but it's clear that it's the receiver, not the remote. (I bought a universal remote, and it only controls the receiver intermittently, too.)
need hook up manual for vr 505 reciever..hooking up hd reciever to digital audio....need hook up diagram..thx jw
Remote not working, or not being received by Receiver. I've replaced the batteries with new ones, but still no joy.
My remote works sometime.
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