Home › Forums › Product Discussion & Questions › BeoGram › Beogram 8002 motor control issues
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alf.
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18 May 2022 at 03:13 #34863
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
19 May 2022 at 00:42 #3486495GU55 or 95GU56 should work fine as replacements for the PU51.
19 May 2022 at 02:25 #34865Thanks Mark,
i will take that on board (if I can find one!!!)
perth isn’t exactly a semiconductor hub.
ALF
3 June 2022 at 22:59 #34866The part PU51 is for sale in Beoparts shop.
4 June 2022 at 02:48 #34867Thank you for the info – part has been ordered 3 weeks ago – still waiting……!
ALf
13 June 2022 at 06:57 #34868Hi 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
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