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TonyDuell · 20th Dec 2017, 4:37 pm

I've currently got it in many bits on the bench and am slowly figuring it out. The only PCB to totally agree with the service manual is the 'drive control' which handles the autoreverse, etc. Everything else has some changes, maybe minor (the 'magnet control' is redesigned with silicon transistors), maybe major (the amplifier is totally different and from what I have worked out so far rather better designed).

I am not too surprised that the machine's design was changed over the years. But what did surprise me was that the new amplifier and/or motor could not be fitted in place of the older one without significant changes to the Base Board and it's wiring.

20th Dec 2017, 4:37 pm	#2
TonyDuell Dekatron Join Date: Jun 2015 Location: Biggin Hill, London, UK. Posts: 5,208	Re: Uher CR210 versions I've currently got it in many bits on the bench and am slowly figuring it out. The only PCB to totally agree with the service manual is the 'drive control' which handles the autoreverse, etc. Everything else has some changes, maybe minor (the 'magnet control' is redesigned with silicon transistors), maybe major (the amplifier is totally different and from what I have worked out so far rather better designed). I am not too surprised that the machine's design was changed over the years. But what did surprise me was that the new amplifier and/or motor could not be fitted in place of the older one without significant changes to the Base Board and it's wiring.