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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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volume pot on Kenwood KA-9100 integrated amp going bad
hi,
after 30 years, the volume pot on my KA-9100 amp seems to be wearing out. i have read much on cleaning pots, (done that), and replacing pots. my searching has found little on repairing pots. 'Secret Life of Pots' sailed right past the practicalities, (which i need), and into the technicalites, (which i don't understand). i was hoping someone had found a site with a faq or a howto on repairing pots which they found useful. any pointers or suggestions would be much appreciated. thanx, larry |
#2
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Larry,
Just wanted to let you know I have the exact same Integrated DC amplifier (Kenwood KA-9100) that I purchased new back in 1975! My unit still works very well and I have not had any problems with my main amp volume control. I am interested though in recommendations for cleaning the other switches and potentiometers though since I do have some occasional cutting out on one or both channels at low listening volumes. The problem goes away when I flip a tape monitor, loudness, or tone defeat switch or play with the bass or treble, so I know these are likely gummed up and dirty after nearly 30 years of use. BTW, I also have the matching KT-8300 AM/FM tuner which is still working flawlessly! Good luck and I'll be interested in hearing if you were able to clean this successfully and what you used. Bob "larry" wrote in message om... hi, after 30 years, the volume pot on my KA-9100 amp seems to be wearing out. i have read much on cleaning pots, (done that), and replacing pots. my searching has found little on repairing pots. 'Secret Life of Pots' sailed right past the practicalities, (which i need), and into the technicalites, (which i don't understand). i was hoping someone had found a site with a faq or a howto on repairing pots which they found useful. any pointers or suggestions would be much appreciated. thanx, larry |
#3
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There are some very good control cleaners out on the market. Most of the
time, the pots and switches can be cleaned using a good quality cleaner. Visit any of the local professional electronics parts distributors in your area, and you should be able to find these types of products. If the pots and controls are not able to be cleaned, then they will have to be replaced. -- Jerry G. ========================== "Bob Shuman" wrote in message ... Larry, Just wanted to let you know I have the exact same Integrated DC amplifier (Kenwood KA-9100) that I purchased new back in 1975! My unit still works very well and I have not had any problems with my main amp volume control. I am interested though in recommendations for cleaning the other switches and potentiometers though since I do have some occasional cutting out on one or both channels at low listening volumes. The problem goes away when I flip a tape monitor, loudness, or tone defeat switch or play with the bass or treble, so I know these are likely gummed up and dirty after nearly 30 years of use. BTW, I also have the matching KT-8300 AM/FM tuner which is still working flawlessly! Good luck and I'll be interested in hearing if you were able to clean this successfully and what you used. Bob "larry" wrote in message om... hi, after 30 years, the volume pot on my KA-9100 amp seems to be wearing out. i have read much on cleaning pots, (done that), and replacing pots. my searching has found little on repairing pots. 'Secret Life of Pots' sailed right past the practicalities, (which i need), and into the technicalites, (which i don't understand). i was hoping someone had found a site with a faq or a howto on repairing pots which they found useful. any pointers or suggestions would be much appreciated. thanx, larry |
#4
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bob,
good amp, isn't it. i've already cleaned the pot with contact cleaner i got at Radio Shack. i do not think that is the problem. i think that it has worn down where the wiper makes contact with the plate inside the pot. i hope to find a faq or howto for dummies. if necessary, i'll get a schematic and replace the pot. but, i'm trying to keep it as original as possible. thanx for the reply, larry "Bob Shuman" wrote in message ... Larry, Just wanted to let you know I have the exact same Integrated DC amplifier (Kenwood KA-9100) that I purchased new back in 1975! My unit still works very well and I have not had any problems with my main amp volume control. I am interested though in recommendations for cleaning the other switches and potentiometers though since I do have some occasional cutting out on one or both channels at low listening volumes. The problem goes away when I flip a tape monitor, loudness, or tone defeat switch or play with the bass or treble, so I know these are likely gummed up and dirty after nearly 30 years of use. BTW, I also have the matching KT-8300 AM/FM tuner which is still working flawlessly! Good luck and I'll be interested in hearing if you were able to clean this successfully and what you used. Bob "larry" wrote in message om... hi, after 30 years, the volume pot on my KA-9100 amp seems to be wearing out. i have read much on cleaning pots, (done that), and replacing pots. my searching has found little on repairing pots. 'Secret Life of Pots' sailed right past the practicalities, (which i need), and into the technicalites, (which i don't understand). i was hoping someone had found a site with a faq or a howto on repairing pots which they found useful. any pointers or suggestions would be much appreciated. thanx, larry |
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#7
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On Tue, 31 Aug 2004 19:48:04 -0700, good stuff wrote:
I'd find a good quality substitute pot, but don't go nuts on expensive spaciality ones. LOL. Clicking the wrong spell checker selection. |
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