Record player working but can't hear through speakers

Electrically amplified phonographs or radio/phonographs and related components (approx. 1928-1990).



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binky055
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Joined: Sun Sep 19, 2010 8:20 pm

Record player working but can't hear through speakers

by binky055 » Sun Sep 19, 2010 9:53 pm

I've been looking for a long time. Finally found my record player. I think it's a 50's or 60's Magnavox Astro Sonic record and radio player (1P3704). Visually has a few scratches and about 40 years worth of smoke layered on it :( The radio works perfect, and I think the speakers sound good. However, When I play the record player the sound dose not come out of the speakers. I think the record player is not the original. I know I have a lot of clean off in the back of the unit. Does anyone think that will fix it. Is it some sort of wire connection? I have no electronic background what so ever. Can anyone help me with very specific details?


Brian McAllister
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Location: Sarasota, Florida USA

Re: Record player working but can't hear through speakers

by Brian McAllister » Sun Sep 19, 2010 11:52 pm

perhaps you could show us some very specific pictures of the turntable and the connections.


Bobby Basham
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Re: Record player working but can't hear through speakers

by Bobby Basham » Tue Sep 21, 2010 3:02 am

Here we go again...Newbies coming up in the camp and don't even bother to read the wealth of knowledge that's already been presented here...want a quick fix and just Hit and Run, never to contribute to the Board again, and possibly destroy what they've acquired.

Sorry to be so damn cranky, but if you finally found your record player, take some time time to find out the history about it.
I only have one little 1966 brochure (my dad threw away all the dozens of Astro-Sonics brochures I had collected.). Astro-Sonics were the crosssover from Tube to Solid-State, so you definitely don't have a 50's unit. I think I had a 50's unit that my Aunt gave me, but didn't know how to deal with it, being a kid...it was loud as Hell, though. It had two front-mounted 12's or 15's and some cone deflectors. The right side opened up the radio and the turntable pulled out on a drawer.

If you want to find the age of your unit remove the back. On the amp/receiver you should find a small white sticker that should give the date of manufacture:

example:

R202-02-10
Chassis
09/65 (September, 1965), of course, different dates.
Picture 27.jpg
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For the turntable
W620-01-01
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If there is a separate amplifier bolted to the bottom, then like the chassis above:

Chassis
A-575-01-00
09/66 (whatever date)
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If it's an early to late 60's you should have one of the turntables pictured below. I don't know how cleaning the back of the unit will fix things. That's like washing a car and thinking that it will start. You have no electronic background whatsoever, so let someone qualified handle it. The turntable, receiver/amp combination, or separate amp, optional tape deck all have SEPARATE service manuals. You can have identical cabinets, but different components in each.

You could have (1) a dead cartridge, (2) broken wires, (3)electrolytic capacitors and resistors out of tolerance , scratchy controls with internal crud which causes one or both channels to not operate (unless you rotate them vigorously) and, who knows what else, needs replaced. It's okay to look, but don't touch.

If the radio works but the phono doesn't sound, a process of elimination and testing is in order. Get some help. You don't want to damage such a "Magnificent" unit. :mrgreen:

See if any of these pics compare to your Astro-Sonic components. --BB

P.S....I wouldn't mind finding some of those tube models, Regencys, Imperial/Concert Grands that the folks over on MagnavoxFriends talk about. What a treat that would be...I know those units kick some serious butt.


Bobby Basham
Tucson, Arizona

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Record-changer
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Re: Record player working but can't hear through speakers

by Record-changer » Thu Oct 07, 2010 5:38 am

Check the pickup and the muting switch on the changer too.
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MattTech
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Location: Philadelphia Pa USA - Home Electronics - Service Technician

Re: Record player working but can't hear through speakers

by MattTech » Sat Oct 09, 2010 4:57 pm

Bobby Basham wrote:Here we go again...Newbies coming up in the camp and don't even bother to read the wealth of knowledge that's already been presented here...want a quick fix and just Hit and Run, never to contribute to the Board again, and possibly destroy what they've acquired.



Hey, it least it's not another: "I got this from my grandmom and wanted to know the value/age" posting.

Hahaha! :lol:

I swear, that post is rubber-stamped somewhere and copied/pasted to death...... :shock:
The Internet is a marvelous thing, however it's not a good substitute for actually being there.


Bobby Basham
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Posts: 498
Joined: Sat Aug 26, 2006 2:50 pm
Location: Tucson, Arizona, USA

Re: Record player working but can't hear through speakers

by Bobby Basham » Mon Oct 11, 2010 12:14 am

I hear ya, MattTech. Sometimes I do get in my moods and get out of line at times.

I do sincerely apologize to the original poster and hope I didn't run him/her away. There are good and knowledgeable folks in here, who I appreciate personally, and freely share their experience and expertise with others. --BB


Bobby Basham
Tucson, Arizona

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Record-changer
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Location: Bloomington IN USA

Re: Record player working but can't hear through speakers

by Record-changer » Mon Oct 11, 2010 2:52 am

On the Conquests and the W600 series, the muting switch may have mica blades that slide between the contacts, un-shorting the pickup. If the mica blades break, the muting switch is permanently muted.

I made replacements from guitar picks.
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