Re: Arghh...not another problem with flo

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From	NOSPAM.Ttr@darkrealms.ca (Ttr)
Subject	Re: Arghh...not another problem with flo
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JH> I upgraded my power supplies in my model 3 (since the originals 
JH> smoked/caug
JH> on fire}.  Everything looks good when I reboot EXCEPT now the 
JH> previously
JH> working floppy drives no longer do.  I tested the power supply 
JH> voltages and
JH> they look okay.  I hooked 
JH> up several different floppy drives and they all do the same 
JH> thing....basica
JH> nothing.  When I boot the crt says "Diskette?" and the floppy drive 
JH> is
JH> connected but the led never lights up or spins...I don't think its 
JH> a bad
JH> floppy drive as it used to more 
JH> or less work (some errors, needed cleaning} when booting before I 
JH> took the
JH> model 3 apart.  Any ideas?  Please don't tell me it's the floppy
JH> controller....much more cost/work to fix that.

Jeff, the smoke likely is nothign to be concerned on your model 3 power
supplies, it is usually teh RIFA Capacitors (power line filters)  that 
look
lioke yellow semi tranparent  rectangles, cut them off and replace or 
use
psu without them to test.
regarding your floppy drive not working, Iwould open case and examine 
the
flat ribbon cable that runs between motherboard and floppy disk 
controller
to make sure its not rotten.  I also suggest disconnectingthe top drive 
and
make sure your not using a twisted cable for your floppy drive. 
the fdc when it fails, simply will make your mdel 3 boot directly to 
CASS? 
if it doesnt then it may still be teh FDC but liekly something else, 
caps on 
floppies can burn out.

Patrick B. TTR ( the TexasTandyRestoration.org shop you were talking 
about.

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Re: Arghh...not another problem with flo NOSPAM.Ttr@darkrealms.ca (Ttr) - 2023-02-21 22:22 +0000

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