adamd@rhi.hi.is (Adam David) (05/28/91)
I have Chinon FX357 (rev. A) floppy drives and no manual for them. They have worked fine as DD drives but I have run into complications while configuring them for HD operation. I traced the PCB enough to get disk-change working alright and find the 'ready' signal. However, I am rather lost sorting out the HD-mode signal. There seem to be so many options to choose from. Does anyone have the manual and can tell me the exact funtion of jumpers J5,J6,J7,J9,J10,J14,J15,J16,J17,J18,R55? Also I need to know the values of R4,R5 and when they need to be fitted. Any help appreciated, -- Adam David. (adamd@rhi.hi.is)