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Author Topic: Yaesu/Kenpro KR400/G400's not the RC Models  (Read 1880 times)
M0DRH
Member

Posts: 30




Ignore
« on: January 20, 2012, 04:56:16 PM »

Hello All,

I have a Kenpro KR400, it is also like the Yaesu G400 (not the RC Models with full 360 Dial),
I have the schematics, but they are very poor copies.
Can anybody confirm the O.P voltages being: 26V for the motor, and 11v for electronics?

Also anybody have an idea what current the motor takes?
I have a burnt out controller, I need to replace the transformer.
I have a transformer with 2 X 25v each rated at 2 amps each.
I can regulate one down for the electronics, that will be low current,
But the motor maybe/takes more than 2 amps??

Any help much appreciated.
Thanks for reading
73 - Dave
« Last Edit: January 24, 2012, 10:29:26 AM by M0DRH » Logged
M0DRH
Member

Posts: 30




Ignore
« Reply #1 on: January 24, 2012, 10:30:47 AM »

Anybody out there help??
Any help much appreciated.
Thanks for reading
73 - Dave


Hello All,

I have a Kenpro KR400, it is also like the Yaesu G400 (not the RC Models with full 360 Dial),
I have the schematics, but they are very poor copies.
Can anybody confirm the O.P voltages being: 26V for the motor, and 11v for electronics?

Also anybody have an idea what current the motor takes?
I have a burnt out controller, I need to replace the transformer.
I have a transformer with 2 X 25v each rated at 2 amps each.
I can regulate one down for the electronics, that will be low current,
But the motor maybe/takes more than 2 amps??

Any help much appreciated.
Thanks for reading
73 - Dave
Logged
KF7CG
Member

Posts: 863




Ignore
« Reply #2 on: January 24, 2012, 11:25:18 AM »

That sounds about correct. I have an old Kenpro rotator, I will have to check the model and find the original manual. From there maybe I can assist. I had to replace the transformer for the elctronics in mine many years back. Rest of transformer was OK.

If you can get rotation but no indicator or dial light you might have the same problem.

David
KF7CG
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M0DRH
Member

Posts: 30




Ignore
« Reply #3 on: January 24, 2012, 03:27:23 PM »

That sounds about correct. I have an old Kenpro rotator, I will have to check the model and find the original manual. From there maybe I can assist. I had to replace the transformer for the elctronics in mine many years back. Rest of transformer was OK.

If you can get rotation but no indicator or dial light you might have the same problem.

David
KF7CG

Hi David,

Thanks for the reply.
Opposite problem here, no rotation, appears to be OC transformer,
no volts on the transformer o/p windings that give the 26V? o/p.
Have tried with rotator disconnected, just to make sure.

Thanks
Dave
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