help- CDE H3 rotor + controller
 

I bought a rotor and controller at a hamfest.
It is a Cornel Dublier Electronics H3/CD44 Series 2.
The position indicator doesn't move with rotation,
the indicator needle is almost full scale and can be moved
with the calibration adjustment.
I suspect the problem is in the rotor.
I need a description of operation, to try and troubleshoot the unit.
The function of the 8 connections would help.
A schematic would be even better.

Thanks, Mike

help- CDE H3 rotor + controller
 

"amdx" wrote in message
...
I bought a rotor and controller at a hamfest.
It is a Cornel Dublier Electronics H3/CD44 Series 2.
The position indicator doesn't move with rotation,
the indicator needle is almost full scale and can be moved
with the calibration adjustment.
I suspect the problem is in the rotor.
I need a description of operation, to try and troubleshoot the unit.
The function of the 8 connections would help.

I have recently found that terminals 3 and 7 are a 500 ohm pot in the
rotor, don't yet know which is the wiper. Also 4 and 8 are the motor
capacitor.

A schematic would be even better.

Thanks, Mike

help- CDE H3 rotor + controller
 

"amdx" wrote in message
...
I bought a rotor and controller at a hamfest.
It is a Cornel Dublier Electronics H3/CD44 Series 2.
The position indicator doesn't move with rotation,
the indicator needle is almost full scale and can be moved
with the calibration adjustment.
I suspect the problem is in the rotor.
I need a description of operation, to try and troubleshoot the unit.
The function of the 8 connections would help.
A schematic would be even better.

Thanks, Mike

Go here and download the manual. It is for a Hy-gain 45 but it should be
the same schematic for the 8 wire rotator. Most of the CDE and Hy-gain
rotators ues the same basic electric design and the mechanical part is
differant .

http://www.hy-gain.com/man/pdf/CD-45II.pdf

help- CDE H3 rotor + controller
 

"Ralph Mowery" wrote in message
link.net...

"amdx" wrote in message
...
I bought a rotor and controller at a hamfest.
It is a Cornel Dublier Electronics H3/CD44 Series 2.
The position indicator doesn't move with rotation,
the indicator needle is almost full scale and can be moved
with the calibration adjustment.
I suspect the problem is in the rotor.
I need a description of operation, to try and troubleshoot the unit.
The function of the 8 connections would help.
A schematic would be even better.

Thanks, Mike

Go here and download the manual. It is for a Hy-gain 45 but it should be
the same schematic for the 8 wire rotator. Most of the CDE and Hy-gain
rotators ues the same basic electric design and the mechanical part is
different .

http://www.hy-gain.com/man/pdf/CD-45II.pdf

Thanks Ralph,
At first glance the manual seems to be identical except for the mechanical
as you mentioned.
Interesting how they grounded the wiper of the positioning pot. That's not
what I would have been looking for if I started troubleshooting without a
schematic.
Thanks again, Mike

help- CDE H3 rotor + controller
 

amdx wrote:
I bought a rotor and controller at a hamfest.
It is a Cornel Dublier Electronics H3/CD44 Series 2.
The position indicator doesn't move with rotation,
the indicator needle is almost full scale and can be moved
with the calibration adjustment.
I suspect the problem is in the rotor.
I need a description of operation, to try and troubleshoot the unit.
The function of the 8 connections would help.
A schematic would be even better.

Thanks, Mike




Once you have the schematic you will be able to troubleshoot the
problem easily. It is most likely the wirewound pot in the rotator
mechanism. I simply cleaned mine for years of continued good operation.
Be careful when you open the rotator though -- do it over a baking pan
or something with a lip on it as some bearings are likely to fall out.
They are easy to set back during reassembly.

Irv VE6BP

help- CDE H3 rotor + controller
 

"Irv Finkleman" wrote in message
news:2s8Sh.45040$aG1.7093@pd7urf3no...
amdx wrote:
I bought a rotor and controller at a hamfest.
It is a Cornel Dublier Electronics H3/CD44 Series 2.
The position indicator doesn't move with rotation,
the indicator needle is almost full scale and can be moved
with the calibration adjustment.
I suspect the problem is in the rotor.
I need a description of operation, to try and troubleshoot the unit.
The function of the 8 connections would help.
A schematic would be even better.

Thanks, Mike


Once you have the schematic you will be able to troubleshoot the
problem easily. It is most likely the wirewound pot in the rotator
mechanism. I simply cleaned mine for years of continued good operation.
Be careful when you open the rotator though -- do it over a baking pan
or something with a lip on it as some bearings are likely to fall out.
They are easy to set back during reassembly.


Thanks Irv, now you tell me about the baking pan :-)
I now have it working. When I opened the controller, I first noticed a radio
shack
transformer that cost $1.98, pretty old, it would probably cost $9.00 now. I
assumed
it must have worked with the transformer at some point. Then I noticed the
full scale
trimpot was a pot/switch combo with the switch part inoperative. But both of
these
where doing what they should do though, so I continued and found a wire
connected where
it shouldn't be. I cut that wire and made the connection to the proper wire.
The unit works fine.
I thought I'd check the lubrication before I installed the rotor. Two hours
later, after picking
up ball bearings, learning how to get the bell properly aligned with the
wiper driver, getting
the ring gear aligned right, etc. The lube was good.
Well, I now know more about controllers and rotors than I did yesterday.
Thanks, Mike

help- CDE H3 rotor + controller
 

amdx wrote:



Thanks Irv, now you tell me about the baking pan :-)

Thanks, Mike


Plus or minus one bearing is close enough for amateur work! :-)
Glad you got it fixed.

Irv