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K3 12v RCA rear socket.

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g4urt

K3 12v RCA rear socket.

Hi,
I've just hooked up my new hupRF K3 IF buffer to the 12v RCA socket at the rear of the K3 expecting to see some volts. The buffer requires 12v at 10ma to drive it. Nothing. Zilch. I've perused the instructions and Freds book but cannot see if I have to enable this function. Its either that or the socket is defunct. I put the K3 together about 4 years but have never had the need to use the 12v RCA output before.
Anyone out there got a clue of what could have gone wrong? Apart from this all is working well with the rig.
Cheers, Peter G4URT
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Don Wilhelm

Re: K3 12v RCA rear socket.

Peter,

There is no 'setup' for the AUX 12V output - I think yours is broken.
If you want to make some measurements, take a look at the lower right
corner of RF Board schematic sheet 3. The RFC and resettable fuse are
thru-hole components, so troubleshooting should be easy.

73,
Don W3FPR

On 9/16/2016 12:08 PM, [hidden email] wrote:
> Hi,
> I've just hooked up my new hupRF K3 IF buffer to the 12v RCA socket at the rear of the K3 expecting to see some volts. The buffer requires 12v at 10ma to drive it. Nothing. Zilch. I've perused the instructions and Freds book but cannot see if I have to enable this function. Its either that or the socket is defunct. I put the K3 together about 4 years but have never had the need to use the 12v RCA output before.
>

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