• QuadraphonicQuad welcomes you and encourages your participation! Treat all members with respect. Please keep all discussions civil, even when you have a strong opinion on a particular topic.

    Do not offer for free, offer for sale, offer for trade, or request copies or files of copyrighted material - no matter how rare or unavailable to the public they might be. We do not condone the illegal sharing of music. There are many places on the internet where you can participate in such transactions, but QuadraphonicQuad is not one of them. We are here to encourage and support new multichannel releases from those companies that still provide them and as such the distribution of illegal copies of recordings is counter-productive to that effort. Any posts of this sort will be deleted without notification.

    Please try to avoid discussions that pit one format against another. Hint for new users: make liberal use of the search facilities here at QuadraphonicQuad. Our message base is an incredibly rich resource of detailed information on virtually all topics pertaining to surround-sound. You will be surprised at what you can find with a little digging!

Sansui QRX-6500 Street Find!

Help Support QuadraphonicQuad:

Tunedup55

New member
Joined
Nov 28, 2019
Messages
2
Location
Nh
Hi, this is my first post on quadraphonicquad. Last summer I acquired a Sansui QRX-6500 from the side of the street, left for free, in pretty decent condition. I let is sit in the house for a could of weeks, on the chance of any moisture to dry up, I plugged it in, and no shit it worked! What a really nice tuner section! I did find a small amount of saw dust when I cleaned the pots and slide switches. Ended up replacing all the electrolytic’s on both the intermediate and main pwr supply boards, after checking all components. The service manual I have, doesn’t show what output voltage for the adjustment. I read online. 25 volts at pin fifteen? Is this correct, if so , can you direct me to that pin? Or other procedure?
 

Sonik Wiz

1K Club - QQ Shooting Star
QQ Supporter
Joined
May 30, 2005
Messages
1,056
Location
Kansas City
Hi, this is my first post on quadraphonicquad. Last summer I acquired a Sansui QRX-6500 from the side of the street, left for free, in pretty decent condition. I let is sit in the house for a could of weeks, on the chance of any moisture to dry up, I plugged it in, and no shit it worked! What a really nice tuner section! I did find a small amount of saw dust when I cleaned the pots and slide switches. Ended up replacing all the electrolytic’s on both the intermediate and main pwr supply boards, after checking all components. The service manual I have, doesn’t show what output voltage for the adjustment. I read online. 25 volts at pin fifteen? Is this correct, if so , can you direct me to that pin? Or other procedure?
Saw dust in the pots?!!
Cool find. Yes 1st thing to do is V+ which should be 25. Be very careful too low things get wonky. A teensy bit too high things get fried. Good luck have fun & keep us updated.

Edit: sorry I can't answer specifically as to pin 15. I dont know which chip you are reffering to. The power supply & pot is usually easy to sort out by inspection. Try looking for that.
 
Last edited:
Top