[Fourlanders] Rotator Troubleshooting

[Rogers, Ron]

Be careful......that manual covers the 450, 650, and 1000 series of rotors and has the schematics for all 3. Make sure you reference the 450 wiring diagram on page 17. 
 
All 3 rotors use the same control circuit PCB, but only a portion of that circuitry is used for the 450 unit.
 
Also, the direction indicator motor in all 3 control boxes is DC, but the rotor motor in the 450 and 650 is 24 VAC as you can see the 100uf phasing capacitor on one of the direction windings in the rotor motor. 
 
I will troubleshoot some more with you, but we'll take this off the reflector.
 
Ron
WW8RR
 
________________________________

From: S Kosmetatos [mailto:skos at bellsouth.net]
Sent: Mon 8/11/2008 7:37 PM
To: Rogers, Ron; fourlanders at contesting.com
Subject: RE: [Fourlanders] Rotator Troubleshooting


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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