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Astro Spectra PTT problem

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arlojanis
Posts: 975
Joined: Mon Jan 28, 2002 4:00 pm

Astro Spectra PTT problem

Postby arlojanis » Mon Jan 29, 2018 8:47 am

I have a Astro Spectra D04KKH9PW7AN with no PTT from front panel mic jack. Is there a known cause? Can radio be keyed from rear accessory connector for a test?
"The world runs on radio."

Jim202
Posts: 3520
Joined: Sun Sep 09, 2001 4:00 pm

Re: Astro Spectra PTT problem

Postby Jim202 » Tue Jan 30, 2018 5:33 am

arlojanis wrote:I have a Astro Spectra D04KKH9PW7AN with no PTT from front panel mic jack. Is there a known cause? Can radio be keyed from rear accessory connector for a test?


It has been reported many times that there are some people / radios shops that go in and cut the PTT land on the circuit board that is the PTT line. This generally is used with some sort of data connection using the rear accessory connector. Prevents accidental use of the mic jack screwing up the data function being used.

So the bottom line is to check the PTT circuit board traces and or mic connection wire if it has them and follow it back.

Jim

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arlojanis
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Joined: Mon Jan 28, 2002 4:00 pm

Re: Astro Spectra PTT problem

Postby arlojanis » Tue Jan 30, 2018 7:16 am

Radio was transmitting normal and just quit keying.
"The world runs on radio."

Jim202
Posts: 3520
Joined: Sun Sep 09, 2001 4:00 pm

Re: Astro Spectra PTT problem

Postby Jim202 » Tue Jan 30, 2018 2:11 pm

arlojanis wrote:Radio was transmitting normal and just quit keying.


You neglected to provide that important fact.

I would try a different mic.

Another question, is the red TX light coming on? Just not being heard.

Jim

User avatar
arlojanis
Posts: 975
Joined: Mon Jan 28, 2002 4:00 pm

Re: Astro Spectra PTT problem

Postby arlojanis » Tue Jan 30, 2018 2:16 pm

I have tried 3 mics. Red light does not come on.
"The world runs on radio."

User avatar
d119
Posts: 3465
Joined: Tue Mar 19, 2002 4:00 pm

Re: Astro Spectra PTT problem

Postby d119 » Tue Feb 27, 2018 11:47 am

Control head or command board crapacitor issue?


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