[TenTec] Frozen display on Omni V.9

Bob Towers mm0rkt at beeb.net
Tue Jul 31 10:16:57 EDT 2007


Rick Denney wrote:
> Mike K9MI writes...
> 
>> Correct me if I'm wrong, but I've always thought of the V.9 and V.92 as
>> firmware, not software. And it sounds like the display problem is hardware.
> 
> Isn't firmware just software that's stored in a write-once, read-only
> memory instead of in rewriteable random-access memory? I haven't
> looked at the chip specs for the Omni V, but it seemed to me just a
> programmable, read-only memory (PROM) that has its software stored via
> a PROM-burner connected to a computer. New machines would use flash
> RAM so it could be updated more easily. But it's still programming
> rather than components executing the design.
> 
> Rick, KR9D

Thanks, Rick, for your comments.
> 
> The fact that it has been a gradual increase in the problem points
to a component failure rather than a working loose of one of the
interconnects. I'll take the lid off and unplug/plug all the connectors
I can see and maybe this will do the trick.

Otherwise it's a new optical encoder, I reckon. Incidentally, is there 
any way of testing whether the encoder is working OK?

73

Bob
MM0RKT


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