[ICOM] 756Pro Keyer problem

[Woody]

Hi Stephen:
The keyer jack is on the front of the rig.  The jack on the rear is for 
a straight key.

73,

Woody
KJ4SO

----- Original Message ----- 
From: <k0sd at juno.com>
To: <icom at mailman.qth.net>
Sent: Monday, April 18, 2005 12:37 PM
Subject: [ICOM] 756Pro Keyer problem


> Hello all,
>   Turned my 756 Pro on this morning, and plugged my paddle into the 
> back
> jack.   Found that I had a steady key when I hit the dot side, and
> nothing on the dash side.   This has been in storage since 
> mid-December,
> just got things set back up after a move from NC to FL.   I had 
> noticed
> the last several months before packing that occassionally it acted 
> like
> the dash contact were dirty, I'd have to hold it extra long, or real
> hard, but it would finally start doing OK.
>   I checked the CW setup menu, it is set OK.   I changed the menu 
> option
> for UP/DOWN buttons "on" mic, and it does dot/dash functions OK. 
> I've
> reset the CPU twice, that didn't help the problem either.
>   I checked the voltage on the dot/dash lines to the paddle, have a
> steady 4.6v on the dot side that works normal (when contacts are 
> open),
> but the dash side wanders around from 0 to 4 volts.   When you hit the
> dash side on the paddle it goes to 0 volts, but wanders around, and
> slowly climbs over a minute or so period.   I know lot of radio's have 
> a
> pull-up resistor internally to +5 volts, that's why I was checking
> voltages.   The DOT line looks normal, but it acts like it's in the
> straight key mode, it stays continually keyed as long as the paddle is
> held in the dot position.   Anyone seen this problem?   Any ideals?
>
> 73's de Stephen, K0SD in FL
> ----
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