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Beogram 8000

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Orava
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Orava posted on Thu, Oct 17 2013 6:24 PM

Well, hope not beging of WW3, but BG8000 thread

Startpoint

 soon...:

Hey, look! No tools! Yet

 blah-blah and photographs as needed

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Orava
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Answered (Verified) Orava replied on Wed, Oct 30 2013 2:50 PM
Verified by Orava

 

And here she is, playing happily Lee Clayton.

 blah-blah and photographs as needed

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Orava
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Orava replied on Thu, Oct 17 2013 6:27 PM

Nasty suprise if plugged in. Loose metalplate, whats it for...??

 

No supporting rod like in 59XX series

But luckily I have Europa

How to disasseble tis...

and tat....

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Orava
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Orava replied on Thu, Oct 17 2013 6:29 PM

 

Ah, transformer goes up, and board is off the hooks.

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Orava
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Orava replied on Thu, Oct 17 2013 6:30 PM

And by one screw...

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Orava replied on Fri, Oct 18 2013 7:01 AM

This was a bit difficult

But it gave up

Smells like recapping

 

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Orava
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Orava replied on Fri, Oct 18 2013 7:04 AM

All stripped

Not burnt, but dusty

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Orava
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Orava replied on Fri, Oct 18 2013 7:07 AM

 

Intresting switch in panel

Remains me about BM1900 series volume control, same designer?

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Orava
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Orava replied on Fri, Oct 18 2013 7:11 AM

Compared to 59XX, this is almost like heavy industry

And downunder

Indicator ready to rebulbed

I wonder why R1 is here called "photo element" and elsewhere "photoresistor"? What is the difference between?

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Orava
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Orava replied on Fri, Oct 18 2013 7:13 AM

Recapped

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Orava replied on Fri, Oct 18 2013 7:16 AM

Ouch, indicator signal dissapears to somewhere here

Changed transistor, and signal comes through and platter ribs are seen

Still it wont regonice edge of disk, what is wrong? Confused

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chartz
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chartz replied on Fri, Oct 18 2013 8:55 PM

Could you be more specific? Does it go all the way to the end of side? What does it do then?

By the way, have you yet checked this setting?

 

 

Jacques

Orava
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Orava replied on Mon, Oct 21 2013 5:03 PM

Today back by the bench again.

Hi Jaques. Yes I did adjust them.

If I just ress play, it goes right to the end, and I bet it likes to go over if could. However, if there is a singe on platter and go back to rib area, press play, it founds edge allright.

Thinking, thinking....

 

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chartz
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chartz replied on Mon, Oct 21 2013 5:46 PM

Okay but does it play the EP disc?

Is the SO switch present and correctly mounted?

Does the sensor counter circuit work? The IR diode is fragile and can go belly-up. If the processor doesn't see a certain number of pulses (the Beogram 8000 counts everything!) from the arm carriage screw tacho (motor side) it won't stop. Check this circuit.

The platter ribs are there for no disc or EP/45RPM only so that works.

What I did:

Jacques

Orava
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Orava replied on Mon, Oct 21 2013 7:09 PM

Oh yes, it does play small ones.(singles)

I check that counter sensor works, but havent check it any deeper, will check tomorrow.

SO switch? Switch Off? It works.

Mechanically this looks more simple if compared to 59xx, but no wonder if it counts it's way.

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Orava replied on Tue, Oct 22 2013 7:20 AM

Just tought, is this working by contrast difference and thus by edge, not by level, of signal from indicator arm? If so, maybe it just do not get clear enough signal without topplate?

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