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Technics SA-600 Receiver user manual or service manual

I am looking for the Technics SA-600 manuals. I purchased the receiver new in about 1979 and have moved three times. During one of the moves, I lost all related information. I recently had the unit serviced as the right channel had quit working. Now all is fine, but I would like to "resurrect" the information that goes along with it. It seems to be a rare find. The Library contain information on the SA-500 and SA-700, but the SA-600 is no where to be found!