Beogram 8002 motor control issues

[alf]

Hi All,

working on my Beogram 8002 which decided to die over night ?!

no Standby LED, nothing….

After a complete recap the unit partially worked again:

when Play is activated the carriage moved to the 33 to 45 switching point and stopped.

STOP wasn’t working but only the manual ‘in function’ (<<) was working.

checked the motor control circuit (1TR3 and 1TR4) – acc to the service manual

1TR4 = PU51 transistor ! What I found was a dead MPSW 51 transistor instead ?

I ordered a Pu51 but was wondering if there are equivalent types I could use ?

advice would be greatly appreciated.

ALF

[Mark-sf]

95GU55 or 95GU56 should work fine as replacements for the PU51.

[alf]

Thanks Mark,

i will take that on board (if I can find one!!!)

perth isn’t exactly a semiconductor hub.

ALF

 

[morgan_mad]

The part PU51 is for sale in Beoparts shop.

[alf]

Thank you for the info – part has been ordered 3 weeks ago – still waiting……!

ALf

[alf]

Hi All,

still waiting for the Beoparts order…..in the meantime after some research I decided to replace the faulty 92PU51 transistor with a M BD 508 type which is working fine.

The motor control function is now fully restored and the Beogram is back in business

thanks to all interested members.

ALF

[Author]

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