HP9114A Disc Drive Problem



#7

I finally have replaced the battery in my 9114A drive. When I turn the unit on, the drive is accessed and the fault light stays on for a short time while the unit self tests. When I try to access via the "INITIALIZE" command on the HP-71B, I get a "NO MEDIUM" error. I then tried to use my HP-41CX and used the "NEWM" command and again receive a "NO MEDM" error. I also tried the HP-110 Portable Plus but cannot get the mavchine to read the disc. Does anyone have any suggestions?
Thanks,
Jeff


#8

The drive uses only single sided diskettes. To use double sided ones, you must cover the holes near the top corners of the diskette with opaque tape.


#9

Thanks for the reply David. I used to have the HP9114B drive and had saved the disc that I used for that unit. This is the one I tried to use for the 9114A. There must be some subtle differences between the two regarding the single sided disc's.
Thanks,
Jeff

#10

David,
your right, all I needed was to place the tape over the hole. Emmanuel also told me this but I was struggling to understand why the 9114B did not require this. Any way, thanks much.
Jeff

#11

Yes that will work, but do be aware that newer floppies (Quad density)
have different magnetic characteristics from the Double Density used by the 9114A and 9114B drives.

For a quick copy its OK, not recommended for long term use.

**vp


#12

I just checked some diskettes I wrote over 10 years ago... no problems found.


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