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Galaxy DX959 Problem

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Buck Shot
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Radio: Galaxy 959

Galaxy DX959 Problem

#274700

Post by Buck Shot »

Hello All,

Recently while talking on my galaxy 959, somthing strange started hapening. Every few time i would try to transmit, the person i was talking to, my talk back feature and the radio it self make a whining noise. Also while this does this, it burries my modulation meter to the max. I am thinging that it could be a mic problem but am not sure. also while it makes the whine, the swr goes down to minimum. I have a DX959 peaked and tuned by Bells CB, other than that it is bone stock no mods what so ever. I run a stock mic also no modifications, and a 4FT fire stick as my antenna. The radio is only a few months old.

Thank you for your help,

BUCK SHOT :rambo:
Galaxy DX959
Cobra 29LTDNW
Reagency CR-123 AM/SSB
Kenwood TS-820 HF

KB1VMK
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TheCBDoctor
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Re: Galaxy DX959 Problem

#274701

Post by TheCBDoctor »

Hi Buck Shot

The next time the radio acts up give it a good whack; if it comes back, then you have a cold solder connection. I call it the Cross Bronx Express Test.

It could be anywhere on the board by the description you have given. If the talk back doesn't work, then I would check around the audio chip.

I would try another Mic first.

Respectfully,
Respectfully as always,

Rick
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TheCBDoctor
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Re: Galaxy DX959 Problem

#274702

Post by TheCBDoctor »

Hi Buck Shot

One more thing, does it do it on SSB when it is acting up?
Respectfully as always,

Rick
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Buck Shot
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Re: Galaxy DX959 Problem

#274705

Post by Buck Shot »

Thank you Doc for your quick reply,

I only use ssb once and a while and i havent had it happen to me on ssb yet. Also is galaxys 4-pin mic plug the same as the cobra 4-pin? would it work? I have a 4 pin cobra mic.

also, if it is not the mic, what should i be looking for when looking for a cold solder connection on the board?

Again, thank you,

BUCK SHOT :rambo:
Galaxy DX959
Cobra 29LTDNW
Reagency CR-123 AM/SSB
Kenwood TS-820 HF

KB1VMK
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TheCBDoctor
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Re: Galaxy DX959 Problem

#274782

Post by TheCBDoctor »

Hi Buck Shot,

The Cobra 4 Pin standard will fit the 959. Wait until it acts up again and give it a good tap. If it fixes the problem, then remove the covers, and pull outward on the chassis. Look at the solder side and see if any of the audio chip connections pull away from the board.

Some colder solder connections are easier to spot than others; you may have to tap on the board with a non-metallic object and see if it acts up. Tap gently until you come to an area that acts up easily and that is where the problem is.

If it wasn't for the talk-back not working, I would say the problem is under the waxed area of the radio. This where the VCO and the frequency synthesizer circuity is located. This would more likely be where you would have a cold solder connection.

Solder small areas at a time and and then test it again. This way if you create a solder bridge you can find more easily.

Respectfully,
Respectfully as always,

Rick
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TomCat5
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Re: Galaxy DX959 Problem

#277010

Post by TomCat5 »

If all else fails....you got the 2yr warranty :compress:
Galaxy DX 55 HP (P&T)
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drdx
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Re: Galaxy DX959 Problem

#277018

Post by drdx »

I'd try the warranty for sure. My bet would maybe be the mic, but also check the tightness of the antenna plug. If it works itself loose you can get some squirrely behavior. Mine did, and I redid the coax once before finding it, thinking it was a feedline or connector issue.

-drdx
Yes it's me, Dollar-98, drdx, the original all maul, shot cawla on workin this no-fade technology.

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TomCat5
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Re: Galaxy DX959 Problem

#277646

Post by TomCat5 »

Hey Buckshot! Get that radio fixed?
Galaxy DX 55 HP (P&T)
Astatic Red Devil NC & Power Mic
Texas Star DX 667V
Wilson 5000
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Buck Shot
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Re: Galaxy DX959 Problem

#279463

Post by Buck Shot »

Hey Sorry guys for not replying in a timly fasion, iv been very busy latley. As far as the radio its fine now. i opend her up and looked around but dident find much, so i put it back together and it worked fine... kinda funny, i have fixed so many things just by taking them apart and puthing them back together. it hasn't acted up yet since i posted this thred so i guess its ok. thanks for all of the help, i cant tell you how much i appreciate it.

Buck Shot :rambo:
Galaxy DX959
Cobra 29LTDNW
Reagency CR-123 AM/SSB
Kenwood TS-820 HF

KB1VMK
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