Beocord 3300

15 replies
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Offline
geoffk (archived2)
Bronze
Posted December 23, 2016 at 12:24 GMT
#2252041

I have a Beocord 3300 that I purchased that was not on working order.

The first and obvious problem was that all the drive belts were perished.

I have now replaced these with new ones. The challenge I now have is that it will not play.

Fast forward and rewind both function correctly, but when I press play the cassette drive does not appear to start and the unit switches back to stop.

If anyone has come across this before, I would be grateful for any hints on what may be causing the problem.

Regards

 

DI
Offline
Dillen
BronzeModeratorFounder
Posted December 23, 2016 at 13:23 GMT
#2252042

How many belts did you replace?
And did you get the square belt below decks fitted correctly? The motor should drive it, it shouldn't just run pass the motor.

Martin

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geoffk (archived2)
Bronze
Posted December 23, 2016 at 13:27 GMT
#2252043

Three, One on top and two below

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geoffk (archived2)
Bronze
Posted December 23, 2016 at 14:07 GMT
#2252044

You were right, the square band was incorrectly routed.

It now runs in play, just no sound. The Amp recognises that it is playing, as it switches to the tape mode. Just no sound.

DI
Offline
Dillen
BronzeModeratorFounder
Posted December 23, 2016 at 15:12 GMT
#2252045

Let me guess - all VU-meter lights are on as in max signal level as soon as you start playing?

Martin

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geoffk (archived2)
Bronze
Posted December 23, 2016 at 16:18 GMT
#2252046

That's the one

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geoffk (archived2)
Bronze
Posted December 23, 2016 at 16:19 GMT
#2252047

That's the one. Perfect description

DI
Offline
Dillen
BronzeModeratorFounder
Posted December 23, 2016 at 16:30 GMT
#2252048

Reason:
Missing 8 Volt reference voltage.

Cure:
Replace the two (black) 220uF electrolytic capacitors on the Dolby circuit board.
That's the small board above the main board, just to the left of the tapedeck section.
Fit new 220uF 25V components and make sure to get the polarity right.

 

 

Martin

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Offline
geoffk (archived2)
Bronze
Posted December 23, 2016 at 17:23 GMT
#2252049

Thank you

G(
Offline
geoffk (archived2)
Bronze
Posted December 28, 2016 at 13:24 GMT
#2252050

Thanks Dillon

New capacitors fitted and working perfectly.

Regards

Geoff

 

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