WinXP not detecting Chinon 5.25" FDD

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A friend/retired Professor asked me to transpose his 5.25" floppy diskette
collection into MS Word or similar format.

Bought a Chinon - Model: FR-506 rev-b, SN#11195759, 5.25" FDD on eBay.

- Path: from mother board, ribbon cable to Chinon 5.25" FDD (17-pins, gap
after 2nd pin on left), to OEM 3.5" FDD last in path on ribbon cable. Tried
several ideas-
CMOS changed A:\ FD controller 3.5" 1.44MB to 5.25" 1.2MB, YES to Reset
Configuration Data (NVRAM), with and without 3.5" FD drive connected, dozens
of restarts.

Jumper Pins: used magnifying glass on circuit board. Reading
from left to right: FG, MS2, D-R, MS1, (sideways) IU, DS3, DS2, DS1, DS0,
TM.

Nine pairs of jumper pins. From left to right - jumpers are on pairs #2, 3,
7, 9.

The drive spins. I assume its getting power(?). WinXP still does
NOT detect it. Have old PC's handy, all 11-floppies DOS 6.2/Win 3.11 For
WG's (just in case).

I'm up for any ideas/suggestions?
Puzzled, Dave


.



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