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Section V
TECHNICAL MATTERS
Firmware Version
With the 633 powered-up and operational, hold down the
jog wheel knob for 5 to 10 seconds. The menu screen you
have been viewing will be replaced by the
633 Firmware
screen. This shows the firmware version installed in your
unit, information that may prove important when com-
municating with the factory. Turning the knob will reveal
the version of the DSP radio chip. Push the knob again to
return to the Menu Screens.
‘Under the Hood’
The Model 633 receiver is simple and small, utilizing mostly
surface-mounted (SMD) components. Many of these are
‘application-specific’ and/or pre-programmed at the factory,
but all of them are impossibly tiny. This makes servicing
the unit in the field a difficult proposition at best. For these
reasons, and also because of the small format of this manu-
al, we have dispensed with schematic diagrams, servicing
instructions and a listing of component parts.
Having said that, our policy has always been one of ‘full dis-
closure.’ We feel that, unless we are doing something un-
derhanded, there should never be a reason to hide infor-
mation from the user. With a clear conscience, and upon
request, we will cheerfully provide additional documenta-
tion and divulge all but the very darkest secrets concerning
any Inovonics product.
Because it is so small and light, returning the 633 receiver
for factory servicing or firmware upgrades is an option that
we encourage. Inovonics has never considered factory re-
pair charges a significant source of revenue, and we are
confident that you will be astonished at how reasonable our
rates actually are!
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