[Premium-Rx] 3030 keypads

[Herschel McCullough]

well some good news..  I put it all back together, but did swap the audio
boards  ..  the problem stayed with the wiring harness..  the board worked
in the left position..where it had been in the right position.  so just to
trace out the wiring a bit..  but I did remove the keypad face..  it's a
bounce problem..   not the bubbly keypad face/ membrane..  same crappy
mis-inputs till you hit the position a second time, with your attitude just
right.. this is on the faceless keypad..  exposed it has buttons similar to
a touch tone telephone. but they don't work with the same reliability.. more
to follow..
----- Original Message -----
From: "refmon" <monitor at referencevideo.com>
To: "Herschel McCullough" <w5mc at austin.rr.com>
Sent: Saturday, June 28, 2003 12:34 PM
Subject: Re: [Premium-Rx] 3030 keypads


> Hi Herschel & Group,
>
> As Herschel can doubtless see, my proposed keypad swap 3030 to 3030A is a
> fair amount of digging with 100's of parts flying around...it may take a
few
> days to find a suitable time block.
>
> Regarding the pads themselves:  The keypads are listed naked parts as the
> body of the keypad only.  There is a separate part, the legend, listed as
> the "overlay".   While the keypads seem electronically identical, the
> overlays and firmware in the CPU vary with model and options
> package...differences, for example, involve the "RATE", "SCAN", and "STEP"
> functions which includes "STOP" and "RESUME".  These functions appear on
> different buttons with various models and/or the scan, step, stop, resume
> buttons are singular buttons or combo buttons.
>
> Given the separate part #'s, I expect the "new" overlay goes on the keypad
> like a shower cap or something...there's and elastic band around the rim
of
> the overlay which seats in a groove around the perimeter of the
keypad...the
> back of the keypad area probably has adhesive on it which keeps the
overlay
> in intimate contact with the keypad.  Might be interesting to open one up
&
> reglue (not permanently) the overlay.
>
> By the way, recently learned of another 3030-based model, the 3030V, which
> has the wierd/unfortunate filter set of .5/1/8/16KHz...also has a 20KHz
1st
> IF (vs 10KHz for 3030 and 3030A).  Otherwise, seems to be same as 3030A.
>
> regards
>
> John
> ______________________________________________________
>