Connex 3400 HP problems

[ExitThirteen]

You don't want the diode soldered inline with the resistor. That isn't factory. It's a very poorly done "swing" mod... it'll make you splatter all over the band. Junk modification.


Reinstall that transistor, remove the diode and reinstall the resistor, and you'll be in great shape. You'll sound real nice on the air again. You can turn up the modulation pot on the board if you want a little extra swing.


~Cheers~

 

[Cpt shakes]

Sorry it took so long to respond, got crazy at home (leaky roof and pipes in bathroom blew up) why leave the diode in (soldered to a resistor by the way)

That is what I meant but voice to text sometimes butchers me.

 

[Heath Streich]

Just a follow up, removed all the junk from the connex, works great now. Took it to another cb shop, just to make sure everything was done right. Thanks for all the help. You really know your stuff

 

[Jrbrulz]

Can you pull the cover, and see what board it has in it?
A lot of these radios use the same main board, with a different case/face.
How high was the power output?
You probably know this already, but it is not a good idea to run them balls to the wall and stay on the key all day.

73
Jeff

Can you pull the cover, and see what board it has in it?
A lot of these radios use the same main board, with a different case/face.
How high was the power output?
You probably know this already, but it is not a good idea to run them balls to the wall and stay on the key all day.

73
Jeff

Hey there I seen the poast is haveing the power all the way up going to burn up the raido? I have a connex 3400hp and a couple days a go the chanle light went out or it didnt say what chanle i was on but there was power to the radio and I couldn't get out or recive when this happend so I would like to know what would cause that if any budy could answer me please

 

[Jrbrulz]

Chance are, that the tech that replaced the finals had to re-set the bias on the transistor as well. Well; one would hope that he did - anyway. So, either your friend set up his antenna that a) compromised the integrity of the coax (smashed it down flat or gave it too sharp of a bend while installing it) or b) put the antenna in such a place that gave it too high amount of reflected power back into the final.

Just for starters . . .

 

[Heath Streich]

Hey there I seen the poast is haveing the power all the way up going to burn up the raido? I have a connex 3400hp and a couple days a go the chanle light went out or it didnt say what chanle i was on but there was power to the radio and I couldn't get out or recive when this happend so I would like to know what would cause that if any budy could answer me please

I was told at one point that if the little watch battery went bad it would do that, I don't know for sure, but a cheap thing to try before taking to a shop

 

[TEXAS RANGER]

I have had two of them come threw my shop with the same problem they both had the big voltage regulator and the last final in line bad i have checked the bios voltage and it was with in speck
as i was checking the radio the board in the back by the SO239 that the SO239 connects to has blown micro parts on it i am trying to get some specks on it now both trucks that the radios where in have very low swr i have checked them both with a MFJ anilizer and checked every thing to do with the aintenna system every thing is perfact
both radios have burnt up the final and voltage regulator twice thats why i started checking the from the final out put to the SO239 and thats when i found the board to be bad
when i find the information on it i will update the information to you

 

[BC Coyote]

Just a heads up, Texas Ranger, that you are responding to a 13 year old thread ! The OP was last seen here 10 years ago.........