Question about Connex 3300 240-channels Mobile Cb Radio Mosfet Powered

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Connex 3300 went to ground what can i do

Was hooking up power to radio and noticed a spark when hooking up the ground wire the hot was already hooked up. shows complete circuit with ohm meter between the ground and hot

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  • Connex Master
  • 9,324 Answers

There is something shorted in the power supply. See if you can get a schematic from their website. Most likely parts to check are the voltage regulators, protection diodes and capacitors. A shorted diode will go to ground too.

Posted on Nov 19, 2014

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Posted on Jan 02, 2017

  • 19 Answers

SOURCE: Standard Microphone Wiring

Pin 1 is Shield(most mics this wire is bare copper) Pin 2 is Audio wire(most mics this wire is white) Pin 3 is Transmit(most mics this wire is red) Pin 4 is receive(most mics this wire is black)

Posted on Aug 01, 2007

  • 4 Answers

SOURCE: connex 3300

youll find the answer at www.cbtricks.com

Posted on Dec 11, 2007

Gavin93
  • 66 Answers

SOURCE: connex 3300 c.b radio

The Connex radio is a division of Cobra, and no offense, but Cobras are one of the cheapest radios around. The problem with your Connex is a simple receiver malfunction. The receiver probably worked great until it was put into storage for a long time, you can replace the receiver, or you can fiddle around with the receive gain until you hear something. But you may just want to send it to a radio store and have it looked at, to be honest with you, Connex is a terrible radio, they sound good, but they're terrible radios. Go with Galaxy or Uniden radios, you won't be disappointed.

Posted on Jul 02, 2008

bunnydawg
  • 5158 Answers

SOURCE: owners manual for connex 4600 turbo

to cut down on noise i would hook it directly to the battery. make sure there is a fuse in the power cord first.

Robert

Please rate this solution thanks

Posted on Feb 23, 2009

lonestaryard
  • 3 Answers

SOURCE: killer radio needs help

I'm not sure if this will solve anything...but here it goes.
1st..Make sure you antenna connections are tight. it sound like it is arcing.
2nd.. make sure you SWR is very low. 1.5 or lower. (very important)
3rd.. make sure the rf power at your radio is turned down to low..over powering (over driving) your amp will fry your finals. (just as important)

If it's not any of these..then I'm not sure.
I have always used an Road King RK56. Not the knock off but the real deal. I would sometimes shock my lips on the metal grille , when I keyed up with my linear on high. I could also power flourescent lights when I got under them..lol and that was with a 250w box and a galaxy 99!

Posted on Jun 14, 2009

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1 Answer

Connex 3300 hp-blows regulator every time you hook up power cord. On/off switch can be on or off, no matter , center leg of 2sb827 shorted to ground . RF finals test good .


This is a problem that can't be diagnosed over a computer. There could be several reasons that the AM regulator is being blown. The radio needs to be serviced by a Radio Technician.

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Does the unit work when it is not hooked up to the linear? The obvious choice is that you have blown finals in the RF output section of the radio.

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How to fix my connex 3300 it has no power


If it is new take it back and have it checked

Dec 25, 2011 | Connex 3300 240-Channels Base CB Radio

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How can i disconnect the talk back on a connex 3300 plus? pleasa be specific on directions. thanks


in older connex 3300's you cannot disable the talk back. Its part of the audio chain. If you disable the talk back you will loose your audio. There are 2 things you can do.

Hook a relay to the speaker so that when the radio key's id disconnects the speaker. (Big pain, not worth the trouble.)

The other will not disable the talk back but it will stop any squealing.

Use a noise canceling mic. An RK-56 will work great. You will get no squealing with that mic.

Oct 19, 2010 | Connex 3300 240-Channels Base CB Radio

1 Answer

I have a Connex 3300. I do not have original plug (power). however, I do have one that fits. I need confirmation this is the right plug. It is three wires. One black(neg.) and two red (positive). I...


The center wire doesn't do anything. Its the outer wires. You can get a standard CB plug with 2 wires that will work just fine. If that plug fits, I it will work. My concern would be if the pos and neg are the correct sides. It should be, But I wouldn't know unless I looked at it.

DO NOT HOOK the radio up with the power wires backwards. Or you will blow the polarity protection diodes. They are there to blow if the radio is hooked up backwards.

If you look at the plug. There is a side the goes to a point, and the other side is square. The black wire, Ground, should be on the side that goes to a point. If it does, then that plug is standard.

It's fine to use and hook up in the usual way. Do not hook up the center wire. It does nothing in the radio. You can clip it, and put a bit of shrink tube on the end as so it does not have a chance to short on anything.

If you are not sure about hooking this power cord to your connex, just go on ebay, and get a regualr CB power wire. They are cheap. It should only have 2 wires.

Sep 07, 2010 | Connex 3300 240-Channels Base CB Radio

2 Answers

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If their isn't a switch you will have to go into it and disconnect it. I would recommend having a professional do this. It is very miticulous.

May 31, 2009 | Connex 3300 240-Channels Base CB Radio

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Bring it to a cb shop and ask for a bench check, or ask a trucker to hook it up and check it out.

Jan 01, 2009 | Radio Communications

1 Answer

Changing swrs


If the SWR changes by opening and closing the door, I would suggest to check the grounding, although you have already done this.
However, a slight difference noticeable can be normal.
Is the antenna cable in tact ? Is there corrossion on the base mount ? Is the antenna placed on the vehicle over a magnetic base or fixed to the chassis ? Check the ground connection on the PL259 both sides, the antenna and the rig.
The position of the antenna and it's grounding is also important.

Dec 15, 2008 | Connex 3300 240-Channels Base CB Radio

1 Answer

Loose hot wire


I do not have a Connex with me on the road, but if you would email me this question, I will look at one when I get home in a couple days and I will email you back as well as post it here, unless someone else can help you before I make it back to Texas.

rollincbmods@yahoo.com

Dean Pitts
Rollin CBs

Aug 14, 2008 | Connex 3300 240-Channels Base CB Radio

1 Answer

Killer radio needs help


I'm not sure if this will solve anything...but here it goes.
1st..Make sure you antenna connections are tight. it sound like it is arcing.
2nd.. make sure you SWR is very low. 1.5 or lower. (very important)
3rd.. make sure the rf power at your radio is turned down to low..over powering (over driving) your amp will fry your finals. (just as important)

If it's not any of these..then I'm not sure.
I have always used an Road King RK56. Not the knock off but the real deal. I would sometimes shock my lips on the metal grille , when I keyed up with my linear on high. I could also power flourescent lights when I got under them..lol and that was with a 250w box and a galaxy 99!

Jun 27, 2008 | Connex 3300 240-Channels Base CB Radio

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