TASCAM 688 MONITOR B PCB 52101678-01 turns out bearings were shot

turns out bearings were shot so put new top quality ones in

Its basically a cassette reel to reel

Probably the same in all these unts but people search by model

and G16S) this one though has a longer capstan for the 1 inch tape

TASCAM 688 MONITOR B PCB 52101678-01 turns out bearings were shotBoard from a 688 and maybe common in some others The 688 was really the flagship analogue portastudio amazing what the could get on 1 8 inch tape I was amazed how heavy and how big the machine was must be 15 kilos maybe, Nearly all the boards inside are with connectors so its one that can be serviced easier I have seen 2 versions of this pcb