Great news. My USB emulator and USB floppy drive both arrived. I did get it working but not before I fell into a trap or two (see below)!
I downloaded the Service Manual for my PR902 from this site (Thanks!) and double checked the wiring from the keyboard (FDD) to the Floppy drive. [The wiring is also identical on the KN7000…not sure about KN5000 or KN6000]. However, the seller on EBay (above) does list it as suitable for <b>KN-5000 / KN-5500 / KN-6000 / KN-6500 / KN-7000…..but do check cabling.</b>
Beware….there is much confusing info on the internet! I didn’t find anyone who had tried/succeeded with a Technics SX PR902.
I had used “USB_Floppy_Manager_v1.40i” to format 100 virtual drives (000 to 099) on the USB stick and then tried to add all the files from one of my keyboard floppies into 000 using USB_Floppy_Manager (per the internet method). I later tried adding these multiple files as a single image file (using MagicIso).
I plugged emulator in (power and 34 pin connector) in place of my floppy drive. [At this stage, I didn’t bother installing it….just in case I couldn’t get it to work]. The emulator switched on and displayed OK.
BUT there was an Error 34 on the emulator display (meaning no image file) when I plugged in my (256MB) USB stick. This error came up for either multiple FDD files in folder/virtual drive 000 or trying a single image file containing all the FDD files. This was a puzzle.
The solution was much simpler than I thought :
a) Format USB stick as FAT32 on PC
b) Convert individual set of FDD files into a single xxxxx.img image file (MagicIso or similar)
c) Copy the img file on to the USB stick
NB The emulator with Flashfloppy v3.15 does NOT need the 000-099 folders/virtual drives. The emulator just “sees” the image files in the order they were loaded. 🙂
Hope this helps…….