Hi Norm ... I would appreciate a " direct email with a schematic of the
RM-1000 control system" as well, please.
Thank You .... Dwight NS9I
NPAlex@aol.com wrote:
>
> John,
> Based on your comments below that it works both UP and DWN from the REMOTE
> position would indicate that the UP/DWN relays and limit switches are
> okay. This leaves two possibilities, one is when you switch from Remote to
> Local that you loose power to the Power Relay located in the tower box.
> Check
> to see if that relay is closed. However the most likely issue is a faulty
> UP/DOWN LOCAL switch (it is a SPDT switch) - Check to see if there is
> 115vac at the center lug (reverenced to common), (there should be as long
> as
> the remote box control is in the LOCAL position). Next switch to UP and
> check for voltage at one of the other lugs, and then DWN checking again for
> voltage at the other lug. The UP side should fail the voltage test. Look
> for a loose wire/lug at the switch.
>
> I will send you a direct email with a schematic of the RM-1000 control
> system
>
> GL
> Norm W4QN
>
> =====================================================
> Date: Tue, 27 Apr 2010 06:45:48 +0000
> From: John Farber <kg6i@hughes.net>
> Subject: [TowerTalk] US Towers 472MDP won't raise from the LOCAL (base
> of tower) location
> To: towertalk@contesting.com
> Message-ID: <4BD6881C.1000607@hughes.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Works fine from the remote unit in the shack. At the tower base (LOCAL
> switch position on the remote box in the shack), it will lower but not
> raise. Anyone been through this scenario and found the fix? Thanks, John
>
>
>
>
>
>
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