[TowerTalk] US Tower Local Control problem

[DGB]

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 at 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 at hughes.net>
> Subject: [TowerTalk] US Towers 472MDP won't raise  from the LOCAL (base
> of  tower) location
> To:  towertalk at contesting.com
> Message-ID:  <4BD6881C.1000607 at 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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