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 Post subject: Magnavox Astro-Sonic turntable requires a push-start?
PostPosted: Aug Mon 30, 2021 1:39 am 
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Joined: Aug Mon 30, 2021 1:21 am
Posts: 3
Hi there, I’ve got a 1965 Magnavox Astro-Sonic Sorrento system. It was restored about 8 years ago by a professional who has since retired, and works great. I recently had to move it out of my house for a few weeks to get some work done on the floors, though, and when I brought it back in, the turntable wouldn’t start automatically anymore. I can give it a spin and it’ll get up to speed, and if it’s been used within a few minutes, it starts all right when flipping sides/etc. Nothing else seems wrong with it, but I would love to figure this out. Is there something that might have gotten jostled in the move, or that might have been affected by the change in humidity?

Thanks!


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 Post subject: Re: Magnavox Astro-Sonic turntable requires a push-start?
PostPosted: Aug Mon 30, 2021 3:33 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
Post a photo of the record changer, so we
can determine what model it is.

If it's from 1965, the changer would be a
600 series.

Do you have a record of what service was
done to the record changer ?

Common maladies:
1. Glazed/dried rubber idler and/or drive wheels.

2. Motor lubrication dried out.

3. Rubber motor mounts decayed and
motor rotor not aligned with idler wheel.

All of the above items should be checked/serviced,
no matter if they are problem source or not.

Hotwax


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 Post subject: Re: Magnavox Astro-Sonic turntable requires a push-start?
PostPosted: Aug Mon 30, 2021 6:00 pm 
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Joined: Feb Sat 06, 2016 1:47 am
Posts: 3618
Location: La Mesa Califonia
Agree with above. For DIY remove platter held on by C-clip. Add very little oil to top and bottom motor bushings use tooth pick. While the motor is running and idler wheel spinning use fine sandpaper held to rubber wheel to brake the slick glaze. Clean with alcohol wheel and inside lip of platter. A touch of oil to platter axle and bottom ball bearings.


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 Post subject: Re: Magnavox Astro-Sonic turntable requires a push-start?
PostPosted: Aug Mon 30, 2021 7:06 pm 
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Joined: Aug Mon 30, 2021 1:21 am
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Thanks- I’ve got a photo here, and I really appreciate the advice. I don’t have a record of what was done to service the changer, but my recollection is that it was a thorough cleaning, and maybe a belt replacement.

I’ve always been hesitant to tinker much, so I’ve never actually removed the platter before. Apologies for the novice question, but is the c-clip that holds the platter in place on the spindle? Can I ask what the three screws along the edges of the turntable are? I’m realizing that I need to do some regular maintenance and I’m eager to learn more about how to do that, and am grateful for the guidance in this community.


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 Post subject: Re: Magnavox Astro-Sonic turntable requires a push-start?
PostPosted: Aug Mon 30, 2021 8:33 pm 
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Joined: Jan Wed 16, 2013 12:04 am
Posts: 2541
Location: 77001
monsoonlad wrote:
Thanks- I’ve got a photo here, and I really appreciate the advice.
I don’t have a record of what was done to service the changer, but my recollection is that it was a thorough cleaning, and maybe a belt replacement.

Apologies for the novice question, but is the c-clip that holds the platter in place on the spindle?

Can I ask what the three screws along the edges of the turntable are?

I’m realizing that I need to do some regular maintenance and I’m eager to learn more about how to do that, and am grateful for the guidance in this community.
Thanks for the good photo. It is a 600 series changer.

1.C-clip: Yes, the c-clip is clipped onto the bottom of the
record spindle.

A small flat edge screwdriver works well to pry the clip
off the spindle.

Be careful to not damage the thin metal chrome disc
that is a decorative piece on the record platter.
The disc may lift up easily sometimes for removal.

BE AWARE that you must cover the c-clip with your hand,
while prying it off.
The clip will fly off into never-find-it land otherwise.
The clip is not necessary though, for function, if you
do happen to lose it.

Make sure any washers that stick to the bottom of
the platter toothed gear stem are not lost when you remove the platter.

2. Three screws: If you mean bolts that go through
the metal base of the record changer:

These are shipping tie-down bolts, and must be
released when removing the entire record changer
from its mount (plinth) in the record console cabinet.

3. Your 600 changer uses two rubber wheels.
One for engaging the complete auto cycle mechanism,
and the other for driving the record platter off of
the electric motor.

4. Attaching 2 videos that go through some basic servicing.

https://www.youtube.com/watch?v=2Y9FzQpAciw

https://www.youtube.com/watch?v=ddEeM4aspY4

Come back with questions as needed. [ : )
Hotwax


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 Post subject: Re: Magnavox Astro-Sonic turntable requires a push-start?
PostPosted: Aug Tue 31, 2021 1:37 am 
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Joined: Aug Mon 30, 2021 1:21 am
Posts: 3
Thank you so much- will let y’all know how it goes and follow up with any questions. Really love how friendly and helpful this group is.


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