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 Post subject: 1967 Zenith Record Stereo Player - Speaker Input
PostPosted: Sep Tue 28, 2021 1:55 am 
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Joined: Sep Tue 28, 2021 1:41 am
Posts: 2
All,

I inherited my grandma and grandpa's beautiful 1967 Zenith stereo console, but I'm struggling to get both speakers to work. If I open up the back, I can switch the white and red wires coming from the main console (picture attached), which has confirmed that both speakers sound great separately. BUT, whichever speaker is connected to the white wire has an extremely low grainy sound - virtually non-existent

I am very much a noob, but consider myself handy and would like to fix this. I have not been able to locate a service manual, however, which is annoying to say the least. Anyone have any suggestions on how to troubleshoot, or point me in the right direction for finding resources?

I'm also in Minneapolis, and very much open to having someone take a look at it

Thanks!
Luke


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 Post subject: Re: 1967 Zenith Record Stereo Player - Speaker Input
PostPosted: Sep Tue 28, 2021 5:21 am 
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Joined: Jan Mon 16, 2012 4:15 pm
Posts: 8556
Location: Near Brandon, Iowa
There's a good chance that one of the electrolytic coupling caps in the "weak" channel has failed and is no longer passing signal from one stage to another.

Another possibility is that a transistor in the weak channel has failed. Often (not always) this is one of the output transistors... they handle the most power in the set and are most susceptible to overheating.

If you can find the unit's model number (probably located somewhere on the fiberboard rear cover) you can most likely find a Sams folder (samswebsite.com) which will provide you with needed repair information.


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 Post subject: Re: 1967 Zenith Record Stereo Player - Speaker Input
PostPosted: Sep Tue 28, 2021 1:54 pm 
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Joined: Sep Tue 28, 2021 1:41 am
Posts: 2
It is a Zenith X940. I will take a look at Sams folder - I really appreciate the advice!


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 Post subject: Re: 1967 Zenith Record Stereo Player - Speaker Input
PostPosted: Sep Tue 28, 2021 7:37 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2620
Location: 77001
lukeeberly wrote:
I have not been able to locate a service manual, however, which is annoying to say the least. Anyone have any suggestions on how to troubleshoot, or point me in the right direction for finding resources?
I'm also in Minneapolis, and very much open to having someone take a look at it
Thanks! Luke
Luke, send me a PM with your email.
I'll send you the Sams 893-9 from 6-67.

Hotwax


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