CB blowing fuses

Discussion in 'CB Radio Forum' started by majestyk, Jun 3, 2012.

  1. majestyk

    majestyk Road Train Member

    1,658
    885
    Jun 28, 2009
    las vegas, nv
    0
    In a new truck and have not been able to get my cb to work. I have blown two 2 amp fuses and the bigger 5 amp ones seem not to be working. The two wires of the truck are green and white, is the green the negative wire as I think it is? I contacted the previous driver and he said he had no problem with his cb. I bought another cb and attempted to hook it up with the same result. The circuit breaker was also thrown in one attempt. Any suggestions welcomed.
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Daniel.trawick

    Daniel.trawick Road Train Member

    1,359
    481
    Nov 28, 2011
    Fort collins,co
    0
    I would test the wires to see what one is ground. White in house wiring is your common but wouldn't think that who ever wired the system would do that. But testing it out would tell you for sure what it hot and what is ground.
     
  4. Big_m

    Big_m Heavy Load Member

    881
    265
    Oct 13, 2009
    Central Maryland
    0
    If it blowing could be wired with the green Pos.
     
  5. rodknocker

    rodknocker Road Train Member

    1,242
    584
    Dec 18, 2008
    Southeast
    0
    The more gooder radios require a 10 amp and will shut off until cools down if wired backwards. I think a cobra is toast if wired wrong
     
  6. rodknocker

    rodknocker Road Train Member

    1,242
    584
    Dec 18, 2008
    Southeast
    0
    It also helps to have your RF power turned all the way down. Turned all the way up it just improves your dead key and not your output.
     
  7. rollingradios

    rollingradios Light Load Member

    184
    66
    Mar 9, 2012
    Richmond, Va
    0
    You have cooked the protection diode in both radios. Have them repaired and use a volt/ohm meter on your wires to test for +/-
     
  8. ramkatral

    ramkatral Heavy Load Member

    858
    408
    Dec 27, 2010
    Tryon, NC
    0
    RF gain increases or decreases reception. It has nothing to do with your dead key or transmit at all.

    And you're right, a 10 amp fuse should be used and be adequate. I run my radio and KL203 linear through a single 10 Amp.
     
  9. Thpbltblt

    Thpbltblt Light Load Member

    68
    21
    May 18, 2011
    Dacula, Georgia
    0
    Not to pick nits, but rodknocker said RF power, not RF gain. He's talking about radios that aren't CB certified with a variable power output control on them. However, I think the problem is probably that the OP guessed wrong and wired his radio up backwards. I vaguely recall someone asking a similar question with the same colors in another post, although I don't remember what the answer ended up being.
     
  10. ramkatral

    ramkatral Heavy Load Member

    858
    408
    Dec 27, 2010
    Tryon, NC
    0
    Yea, that's true. I may have misunderstood. However, if that's the case, adjusting to a higher power output increases your carrier power and therefore DOES increase your output.
     
  11. Outlaw CB

    Outlaw CB Light Load Member

    260
    179
    May 26, 2012
    0
    Which does not alter the problem that not only did He reverse power the radio He also shorted the protect diode so it will keep blowing fuses until you both repair the radio and correct the wiring.

    There is no such thing in CB as 'the more gooder radios' which will shut down until they cool off after being reverse powered.
     
    ramkatral and rollingradios Thank this.
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.