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Connection issue with SuperStar 500

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Badge19
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Connection issue with SuperStar 500

Post by Badge19 » Wednesday, 09 August 2017, 4:15 AM

Good Morning,
I recently acquired a SuperStar 500 base station power supply/amplifier. The unit powers up, switches and led lights ok, fan runs fine. However when I attempt to attach the jumper from radio to amp the signal drops out when I secure the PL259 connector. Any ideas..??? Thanks in advance.


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Re: Connection issue with SuperStar 500

Post by MDYoungblood » Wednesday, 09 August 2017, 6:32 AM

I believe on that PS/amp the top connector is the for the trasmitter and the bottom is for the antenna, but then it is a old amp, someone may have switched them during a repair. If that isn't the case check the jumper or use a barrel connector and see if it happens without the amp inline, could be a bad jumper, that happens too.

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Re: Connection issue with SuperStar 500

Post by Badge19 » Wednesday, 09 August 2017, 13:10 PM

Thanks Greg! Issue doesn't seem to be the jumper cable. I first tried it using the jumper I'm currently using on another amp, which is working fine. But to be sure I tried (2) other jumpers, same issue.
:think:

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Re: Connection issue with SuperStar 500

Post by MDYoungblood » Wednesday, 09 August 2017, 13:37 PM

With the amp connected andin the "off" position it should be in feed thru mode, I'd check the center pin of the connectors with a multimeter. Any other testing you will need a 50Ω dummy load.

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Re: Connection issue with SuperStar 500

Post by Badge19 » Sunday, 20 August 2017, 7:04 AM

Following up on this post....had the unit looked at and found the pre-amp had failed; went ahead and had it disabled, now working like a champ..!


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MDYoungblood
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Re: Connection issue with SuperStar 500

Post by MDYoungblood » Sunday, 20 August 2017, 11:33 AM

That was probably from the previous owner hooking the coax up wrong, I'm guessing he just took the relay out of line, if I remember correctly those receive pre-amp could be switched independently from the amp itself. Glad to hear it's working.

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