[comp.sys.ibm.pc] query for Sharp 4501 owners

bobl@tessi.UUCP (Bob Lewis) (06/20/89)

I recently purchased a Sharp 4501 (4501-03, actually) laptop and it's been
working fine with one exception.  It looks a bug in the ROM.  I thought I
might describe it in the hope that someone else has seen it.

It has to do with the "Fn +" and "Fn -" keys, which are supposed to be
equivalent to the numeric keypad "Grey +" and "Grey -" keys on conventional
PCs.  They act erratically when they are not set to act identically to "+"
and "-": sometimes they work, sometimes they don't.

I first noticed the problem in PC-Write, which binds the keys for searching
text.  I then ran the "DIAG45U" Sharp diagnostic program, which indicated a
keyboard error on both of these key combinations.

I'd appreciate it if somebody out there with a 4501 or similar Sharp laptop
would try running "DIAG45U" and testing out his/her "Grey +" and "Grey -"
keys in this way.

I know of several possible workarounds for PC-Write, but I'd like to know if
the problem is correctable.

Please reply by email.  I will forward or summarize if requested.  Thanks.

	- Bob Lewis
	  bobl@tessi.UUCP

P.S.  I've tried Sharp, but even after I explained that both a commonly-used
command of a program in wide distribution failed *and* their own diagnostic
software indicated a "keyboard error", they knew nothing about any problems
with the ROM and believed it to be an "application software error".  I would
not trust such people even to reproduce, let alone fix, the problem.