I have a TT-801. It was supposed to be an update of the TT-101 to allow vacuum suction of the record onto the platter. In order to achieve this they utilized more chips than the TT-101 and thus you will find the circuit board is less cluttered and contains fewer transistors. In addition there are maybe only one or two trimmers (from memory?) that need adjustment as opposed to the half dozen or more on the TT-101.
I recapped myself and wrote to Japan requesting purchase of a service manual but was told that there was none available. I even had my Japanese friend in Tokyo look for a service manual for me but he said there was none. I think this model was only sold in Japan but I am certain that service centers there would be able to service this. My TT-801 seems to work perfectly but just like best-groove I will never know if it is working optimally after the recap.
I recapped myself and wrote to Japan requesting purchase of a service manual but was told that there was none available. I even had my Japanese friend in Tokyo look for a service manual for me but he said there was none. I think this model was only sold in Japan but I am certain that service centers there would be able to service this. My TT-801 seems to work perfectly but just like best-groove I will never know if it is working optimally after the recap.