I have a PDF of the schematic, if you need, Steve // don't know its era ...
AND, have a local buddy (WB6QPG) who has one and probably could be coerced
into checking the voltages ..73 .. Mark, AA6DX
----- Original Message -----
From: "Pete Smith" <n4zr@contesting.com>
To: <K7LXC@aol.com>; <towertalk@contesting.com>
Cc: <dangel@cwo.com>
Sent: Friday, October 21, 2005 11:14 AM
Subject: Re: [TowerTalk] Yaesu rotator problem
Steve, I'm pretty sure that the change was made when the A series came out,
and reflected the change in the controller design rather than a change from
DC to AC. I *think*, as well, that the use of 6-terminal connectors dates
back to the SDX presettable series, and that the units still need 5 wires,
rather than 4.
I believe that lines 1-3 are the potentiometer leads, and you should be
quickly able to determine which is which and measure the resistance
directly. 4 and 5 are the motor windings, and other than assuring
connectivity and a relatively low resistance I don't think there's anything
tell-tale there.
But instead of conjecture, I suggest you call Yaesu tech support and ask for
Jerry - I have always found him very knowledgeable about the rotators.
73, Pete N4ZR
At 11:48 AM 10/21/2005, K7LXC@aol.com wrote:
>Howdy, TowerTalkians --
>
> I ran into a problem that's got me stumped. I've got a Yaesu G-800
>rotator that doesn't seem to work. It was not tested prior to installation
>on the
>tower but I haven't ever had any infant mortality problems with Yaesus so
>maybe
>it's something on our end.
>
> I think I remember that Yaesu rotators changed voltage systems
> recently -
>they went from ac to dc or vice versa - I don't remember which, but the
>result is that instead of using 6 wires, now they only use 4. Which is fine
>except
>they don't tell you that in the instruction manual so you wind up soldering
>4
>extra wires (2 on each end) that aren't needed. And they're not the easiest
>buggers to work with in the first place. :-(
>
> Anyway, we got the 4 wires hooked up and it doesn't work - no rotation,
>no indication, etc. We've got power and had to replace the little internal
>3A
>fuse but as Mark would say, no worky worky. We couldn't find any pin-out
>measurements like you find with Hy-Gain rotors so we couldn't do any
>measurements.
>Can anyone give us any simple measurements/tests we can do? We haven't run
>a
>cable continuity check but I haven't had that sort of problem before but
>I'm not
>ruling anything out.
>
> Any help appreciated.
>
>Cheers,
>Steve K7LXC
>TOWER TECH
>_______________________________________________
>
>See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
>Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
>questions and ask for Sherman, W2FLA.
>
>_______________________________________________
>TowerTalk mailing list
>TowerTalk@contesting.com
>http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any
questions and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
--
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.344 / Virus Database: 267.12.4/146 - Release Date: 10/21/2005
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|