Aiwa ap-2600u info?

I've inherited an aiwa ap-2600u turntable with a micro-acoustics 530-mp cartridge. Both are from the early 80's. Can anyone provide any info on either one? Is it worth replacing the cartridge? I can provide pictures to help jog people's memories, if that would help.
I still have an brochure on the Micro-Acoustics cartridges as I used the MA-2002e on my Dual 1229 back then, but it's home.
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