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Beogram 1200 with bent silencer switch

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sm2n
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sm2n Posted: Sun, May 6 2012 10:18 PM

Thanks, in advance, for reading this post. I have a Beogram 1200 which I'm trying to get working again. While examining the innards, I noticed that the switch which silences the pickup signal seems to have been bent out of shape. Please see the image below.

 

It's all curved, whereas in the owners manual it all seems to be straight lines and 90-degree bends. Here is a close up of my switch.

Does anyone know what this switch should look like in real life?

Dillen
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Dillen replied on Tue, May 8 2012 5:35 PM

Welcome to Beoworld !

The switch should look like this:

Martin

sm2n
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sm2n replied on Tue, May 8 2012 7:31 PM

Wow, thanks very much Martin! I will get my pliers out and see if I can restore the switch to something like its normal shape.

Dillen
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Dillen replied on Tue, May 8 2012 7:49 PM

If it fails let me know and I'll have a look in the dungeons.

Martin

sm2n
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sm2n replied on Wed, May 9 2012 10:56 PM

Thanks again, Martin. This is what my switch looks like now. So now I just need to figure out why the turntable doesn't start spinning when I press the start button. Thanks again for all your help!

Dillen
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Dillen replied on Thu, May 10 2012 8:00 AM

NIce job ! Yes - thumbs up

Check if the motor has seized in dried lubricants.

Martin

sm2n
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sm2n replied on Fri, May 11 2012 10:56 PM

It's all working fine now, thanks to your help!

http://www.keek.com/!Cc3daab

sm2n
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sm2n replied on Thu, May 17 2012 11:08 PM

Well, my Beogram spins very well now, and the silent switch and the motor cut-off switch both engage and release properly. And I've got myself a phono preamp and wired it up. But all I hear is hiss. Does this mean there's a fault in the wiring between the stylus and the output cable?

Dillen
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Dillen replied on Fri, May 18 2012 6:47 AM

Yes, or the cables are not correct.

Martin

sm2n
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sm2n replied on Fri, May 18 2012 1:00 PM

Dillen:

Yes, or the cables are not correct.

Martin

Thanks for the quick response. What do you mean, Martin? Could there be the wrong cables in my Beogram?

Dillen
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Dillen replied on Fri, May 18 2012 1:18 PM

Well, yes there could but more likely the adapting cable/adapter.
Some cables/adapters use the wrong pair of pins from the 5-pin DIN, that'll
be the record pins (unused in Beogram 1200) instead of playback pins.

Martin

sm2n
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sm2n replied on Fri, May 18 2012 9:26 PM

Martin, I think you've spotted the problem. The adapter cable is reading continuity with the opposite pair of pins. What do I do? Throw the adaptor cable away and get a different one? Or try to rewire the Beogram's DIN connector?

Søren Mexico
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sm2n:

Martin, I think you've spotted the problem. The adapter cable is reading continuity with the opposite pair of pins. What do I do? Throw the adaptor cable away and get a different one? Or try to rewire the Beogram's DIN connector?

If you can open the adapter cable, then solder to the correct pins, or get a 5 pin DIN and make a cable, or rewire (not recommended), or buy a new cable.

 

Collecting Vintage B&O is not a hobby, its a lifestyle.

sm2n
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sm2n replied on Fri, May 18 2012 9:44 PM

Yes! I've opened up the adapter cable's DIN plug and I can resolder to the other pins. Mirror image, right?

Søren Mexico
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Just a minut

 

Collecting Vintage B&O is not a hobby, its a lifestyle.

Søren Mexico
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1 to 3, and 4 to 5 or visa versa

Collecting Vintage B&O is not a hobby, its a lifestyle.

sm2n
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sm2n replied on Fri, May 18 2012 10:24 PM

Yes, it worked! Thank you so much, both of you. You're geniuses!

sm2n
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sm2n replied on Fri, May 18 2012 11:12 PM

You guys have been so awesomely helpful. I'm so grateful to you.

Now I can hear my records I noticed they're playing slightly slow, despite having the thumb wheel adjusted all the way up. I bet this is an easy question for you. Please can you tell me what I should try next?

Søren Mexico
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Belt or idler wheel, or if Martin can post without too much troubles (timeouts) maybe he has a better idea. He is the genius I'm the happy amateur.

Collecting Vintage B&O is not a hobby, its a lifestyle.

Dillen
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Dillen replied on Sat, May 19 2012 6:54 AM

Good job on the cable !
And thanks Søren for the nice sheet.

Most likely your motor needs a fresh clean and lubricate. It's very common but
unfortunately, not very easy.
The usual symptoms are slow start up, picking up speed within 2-10 minutes, running fine after that.
If you keep playing records, you will not see the fault again. If you let the Beogram sit for a day or so, it
will start slow again.

Martin

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