[Fourlanders] Rotator Troubleshooting

[S Kosmetatos]

Ron,

Thanks for the manual & schematic. The schematic shows 24 VDC next to the
motor symbol, which surprises me - I would think it would be AC. I found pin
3 to be GND, and I am seeing 10.47 VDC on pin 2, and only millivolts on the
other pins when I operate the controls. I can only conclude that the control
box is bad at this point. 

One step forward and two steps back trying to get this station on the air!

Kos, N4NIA

-----Original Message-----
From: Rogers, Ron [mailto:RR124640 at ncr.com] 
Sent: Monday, August 11, 2008 10:44 AM
To: S Kosmetatos; fourlanders at contesting.com
Subject: RE: [Fourlanders] Rotator Troubleshooting

Kos,
I just sent the Yaesu 450A manual and schematic in another e-mail to you in
case you did not have the manual version that included the schematic.

Yes, 24 VAC should be delivered to pins 6 and 4, or pins 6 and 5 (depends on
which direction you are turning rotor) on the rear of the control box.


Ron
WW8RR

-----Original Message-----
From: fourlanders-bounces at contesting.com
[mailto:fourlanders-bounces at contesting.com] On Behalf Of S Kosmetatos
Sent: Sunday, August 10, 2008 5:37 PM
To: fourlanders at contesting.com
Subject: [Fourlanders] Rotator Troubleshooting

I bought a Yaesu G-450 rotator about a month ago and noticed that the pins
in the connector on the back of the control box sometimes didn't make good
contact in the socket, and I would sometimes have to push them in a bit to
get the rotator to work. It's been a couple of weeks since I've used it, and
now I can't get the rotator to turn at all. The pins seem to be making good
contact. The other bizarre thing is that the overlap LED comes on -
sometimes.

I had a pretty severe lightning hit in the neighborhood and lost two phones
and a fax machine last week; I don't know if the rotator or control box was
affected. The coax to the antennas were disconnected, but the rotator
control cable was plugged in.

My question is: how do I test to make sure I have good power coming out of
the control box before I go through the trouble of taking down the rotator?
The Yaesu manual is worthless - I need to know what voltage I have on which
pins when operating the rotator. Anyone have this information? I assume the
unit uses 24 VAC, if it's like others I've worked on, but I'd like an
opinion if anyone has one.

Thanks,

Kos

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