Beogram 5500 17cm record detection

4 replies

My Beogram 5500 has been fitted with new drive belts, and a newly refurbished cartridge from Axel.  Everything worked well until I tried to play a 17cm record.  The player didn't recognise the smaller record, and dropped where it should for a 30cm record.  Not good.  

I have looked at the service manual and searched Beoworld but I can't find anything to tell me how the player detects record size.  Looking at the schematic, there are some switches which may be the switches on the main PCB activated by the mechanics. But how does the player detect record size?

And how to fix it so the stylus only ever contacts vinyl?

 

Some recent EPs made of thick vinyl are known to cause this!

chartz wrote:

Some recent EPs made of thick vinyl are known to cause this!

And if it is one of those new 'heavy' EP's, then the only thing to do is to cue the arm manually into the record's start groove by pressing "< TURN".

My B&O Icons:

BeoCenter-9500.png BeoCenter-9500.png
Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beovision-10.png Beovision-10.png
Beosound.png Beosound.png
Beosound-5.png Beosound-5.png
Beosound-4.png Beosound-4.png
Beoplay-S3.png Beoplay-S3.png
Beoplay-A1.png Beoplay-A1.png
Beomaster.png Beomaster.png
Beocenter-2.png Beocenter-2.png

Thanks Martin.  That explains everything I see.  Don't often use 7" records, will be more careful with them in future.  And the other hints are appreciated too - seems I may be the only person who doesn't know about this!  

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