pbeverage
New Member
Good day, all -- I am sure some folks here absolutely hate these speakers, but they are related to my childhood, all of which is lost, save a couple picture albums. I will not be replacing them, even though there are objectively better speakers I could find, vintage or otherwise. Please keep that in mind if you have a criticism of this request or the speakers themselves.
First, some backstory -- I drove almost 10 hours in a rented SUV to purchase these a few months back, after waiting half a year to organize a time to purchase with the seller. On getting them back home, hooking them up to my receiver, and putting on a record that is great for testing...I noticed that the mid and ribbon tweeters cut in and out when the "Normal" tone selector is pressed in on a single speaker. Switching to "Soft" and "Crisp" ends up with identical behavior / sound from each driver on both speakers. After playing around for a bit, I noticed that I can sometimes get the affected speakers to correctly operate if I jiggle around the Tone Selector on the affected speaker...which is a problem, since of all the "tones", I preferred (and still do) the "Normal" setting.
So -- here's hoping someone has some helpful information squirreled away in their brains...any ideas how I can access/work on that tone selector switch, and/or replace it? I cannot find a service manual for the CS-905, although I could get a CS-705 one off the internet, since most of the difference as I recall is an extra ribbon tweeter. I would prefer not to damage the speaker, as it took me a fair bit of time and money to piece back together parts of the stereo my parents had -- and I'm not keen on having to buy another speaker / speaker cabinet if avoidable. One solution that I'd like to avoid is just bypassing the selector altogether -- while it'll almost always stay on "Normal", I want these fully functional, if possible.
Any help (or service manuals) are appreciated. I would've spent more time looking on VinylEngine/HifiEngine, but without being able to register...there's almost zero help there outside of trying to locate old component models visually.
First, some backstory -- I drove almost 10 hours in a rented SUV to purchase these a few months back, after waiting half a year to organize a time to purchase with the seller. On getting them back home, hooking them up to my receiver, and putting on a record that is great for testing...I noticed that the mid and ribbon tweeters cut in and out when the "Normal" tone selector is pressed in on a single speaker. Switching to "Soft" and "Crisp" ends up with identical behavior / sound from each driver on both speakers. After playing around for a bit, I noticed that I can sometimes get the affected speakers to correctly operate if I jiggle around the Tone Selector on the affected speaker...which is a problem, since of all the "tones", I preferred (and still do) the "Normal" setting.
So -- here's hoping someone has some helpful information squirreled away in their brains...any ideas how I can access/work on that tone selector switch, and/or replace it? I cannot find a service manual for the CS-905, although I could get a CS-705 one off the internet, since most of the difference as I recall is an extra ribbon tweeter. I would prefer not to damage the speaker, as it took me a fair bit of time and money to piece back together parts of the stereo my parents had -- and I'm not keen on having to buy another speaker / speaker cabinet if avoidable. One solution that I'd like to avoid is just bypassing the selector altogether -- while it'll almost always stay on "Normal", I want these fully functional, if possible.
Any help (or service manuals) are appreciated. I would've spent more time looking on VinylEngine/HifiEngine, but without being able to register...there's almost zero help there outside of trying to locate old component models visually.
