Connex Radio Communications - Page 6 - Recent Questions, Troubleshooting & Support

the reverse voltage diode protection has gone short

you simply need to cut the diode then get down say a big thankyou and hope your CB is alive a tip is to look for a diode like a 1n4007 or 1n4007 just behind the power socket or on the pcb across the + and grounding you can measure it with a multimeter

a tip to find a bad short is this set the multimeter to 20ohm range and not beep then you can test youll see the closer you get too the short the less the resistance becomes so you can be sure of the diode to cut... other than this there is usually a coil also on + and - to filter out rf garbage from a cars ignitions etc {not needed now} anyway this small block coil can melt
however if this has happened then its gubbed a good test is does it complain before you switch it on or after if its dead short before then the protection diode is gone if you then find when you switch it on it blows fuses then the audio ic has failed

there is many more things can go wrong with cb radios i can help so try these things lets see

Connex Radio... | Answered on Nov 23, 2014

check the power switch contacts {ie do you get 13.8v at power on or after its fized a bit??? or roger bleep
pa circuit can do this also

Connex CX-4300HP... | Answered on Nov 23, 2014

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.

Connex 3300... | Answered on Nov 19, 2014


Connex 3300... | Answered on Nov 08, 2014

get the mic away from both speakers

Connex... | Answered on Oct 04, 2014

If theres a Hi/LO and a/b/c/d/e/f . most are HI and a/d positions.

Connex 3300... | Answered on Sep 29, 2014

actually, non of them are, that radio is actually not legal on the CB service in the US

Connex 3300... | Answered on Sep 14, 2014

I'm assuming you mean just the knob, and not the shaft behind it, if it's a D shaped shaft, a slip of paper in the knob will tighten it up, if it's knurled and round shaft, spread the split in the middle open slightly until the knob is tight

Connex Radio... | Answered on Sep 14, 2014

This means that your swr is high. you can damage the radio using it in this condition, check antenna and coax for damage or misinstallation

Connex Cx-3600Hp... | Answered on Sep 14, 2014

PA transistor and/or driver transistor have failed

Connex 3300... | Answered on Sep 14, 2014

sounds like a power amplifier failure. have the rig serviced

Connex 3300... | Answered on Sep 14, 2014

you'll have to seperate the ground from the shield and then attach the rx,tx,and ground ,the shild then the ground thats on the shield.

Connex Radio... | Answered on Sep 11, 2014

could be in your finalwhere the problem exists.Try flexing your board by pushing down in the center to see if any noise comes through.

Connex Radio... | Answered on Sep 11, 2014

not really.Many radios come with one built into the meter on the radio. For those with none you will need an external SWR meter. I would recomend a trucker 2000.

Connex 4600 Base... | Answered on Aug 13, 2014

connex has ,I'm pretty sure , a 5 yr.warrenty.Go on their site and they will fix it for free.

Connex 3300... | Answered on Jul 23, 2014

probably sent enough power thru the reverse polarity diode to burd it but still have enough to keep lights on.

Connex Cx-366ce... | Answered on Jul 23, 2014

18 ft. you shouldn't have to worry because a 102 is carring a good match anyway.Make sure you use the good stuff and its not the skinny coax.

Connex Radio... | Answered on Jul 22, 2014

yes,but you want to make sure your antenna is tuneable.If your SWR is to high or to low you want to be able to adjust the antenna to bring the match up or down.Anything under a 1.9:1 is ok but the lower the better

Connex 3300... | Answered on Jul 22, 2014

The power cable for this is a standard one with red for +13.8v and black for 0v. The FC connector is for an external frequency counter.
Just because there are less wires than pins on a connector, does not mean there is a problem.

Connex 4300HP... | Answered on Jul 09, 2014

Is squelch turned too high that it is blocking too many signals?
Otherwise, it could be a faulty cable on the mic as the PTT button disconnects the speaker on the CB and a broken wire can cause the speaker to be disconnected.

Connex Cx-366ce... | Answered on Jul 09, 2014

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