TKR-720 Odd problem.....

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KX4KDH
Posts: 32
Joined: Wed Mar 21, 2012 7:46 am

TKR-720 Odd problem.....

Post by KX4KDH » Wed Dec 18, 2013 6:59 pm

Hello again, folks.... I was handed a TKR-720 for our club today, and I wanted to program it at work since I have access to a KPG-50 there.... Much to my surprise, the KPG-50 won't power up, leading me to believe there is no power at the mic jack. When you turn the repeater on, the power light comes on. If you push MON, the light for that comes on. In fact, all lights will come on. I am not terribly familiar with this repeater. I'm not sure if the receiver, or the transmitter sends power to the mic.... Or none of the above?


Sheesh....... :x

n5tbu
Posts: 409
Joined: Fri Aug 30, 2002 7:20 am
Location: Opelousas,La.

Re: TKR-720 Odd problem.....

Post by n5tbu » Wed Mar 05, 2014 11:39 am

There is a pico fuse on the front panel control board

KX4KDH
Posts: 32
Joined: Wed Mar 21, 2012 7:46 am

Re: TKR-720 Odd problem.....

Post by KX4KDH » Fri Mar 07, 2014 4:05 pm

n5tbu wrote:There is a pico fuse on the front panel control board

Thanks for the info.... Now I have to get my reading glasses, and find it!

n5tbu
Posts: 409
Joined: Fri Aug 30, 2002 7:20 am
Location: Opelousas,La.

Re: TKR-720 Odd problem.....

Post by n5tbu » Fri Mar 07, 2014 7:19 pm

The same fuse serves the switched a+ at the rear 15 pin Molex...have you verified that it's missing?
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KX4KDH
Posts: 32
Joined: Wed Mar 21, 2012 7:46 am

Re: TKR-720 Odd problem.....

Post by KX4KDH » Sun Mar 16, 2014 4:32 pm

I have not.... Now that I am finished working out of town, I can break it down, and look for it... Also, if it also powers the switched 12v at the rear, I can see if it's working or not.... That's amazing to me that they have a pico fuse on the rear port... Not to mention that is supplies power up front, as well!

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