Yep, my Omni VI+ did the same thing. Always did.
73, Duane
On Sat, 11 Feb 2006 12:15:44 -1000 Ken Brown <ken.d.brown@verizon.net>
writes:
> The meter lamps on my Omni VI dim noticeably when either the VOX or
> SPLIT LEDS are lighted. It is doubtful that this is due to a power
> supply lead voltage dropping from the increased load of the LEDs,
> for
> two reasons. The amount of current the LEDs use is probabaly less
> than
> 20 mA each, and the controlled voltage source for the meter lamps is
> on
> a completely different board, the Low Level Driver Board. So the
> amplitude or duty cycle of the "digit driving pulses" coming from
> the
> LED Display Drive Board must be changing when the SPLIT or VOX LEDs
> are
> turned on. This doesn't seem right.
>
> Anyone else with an Omni VI notice this, or know what the cause is?
>
> I also found some inconsistancies in the LED Display Board
> Schematic.
> Several of the seven segment displays have two "CAT"s and no "COL",
>
> which I presume are cathodes and collectors. And a bunch of the
> "CAT"s
> and "COL"s show no connection. Doesn't seem right.
>
> DE N6KB
>
>
>
>
>
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>
>
--------------------------------------
Duane Calvin, AC5AA
Austin, Texas
http://home.austin.rr.com/ac5aa
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