• You can now help support WorldwideDX when you shop on Amazon at no additional cost to you! Simply follow this Shop on Amazon link first and a portion of any purchase is sent to WorldwideDX to help with site costs.
  • Click here to find out how to win free radios from Retevis!

Search results

  1. B

    Need new channel board for Cobra 2000

    Great, let me know, I’d appreciate it!
  2. B

    Need new channel board for Cobra 2000

    Yeah I am sure there is. I have been searching all over the internet, no luck finding anyone selling them...used to, not anymore I guess.
  3. B

    Need new channel board for Cobra 2000

    Where did you see someone parting one out?
  4. B

    No Power to board? But meters light up.

    So here’s something, though I don’t know what it means. If I run a jumper wire form the 13 volt source on the Ac Dc switch to the 12 volt rail in the main board , it corrects the frequency counter and shows the right frequency. The transmit light comes on as well. Then when I pull the wire...
  5. B

    No Power to board? But meters light up.

    I tried lifting pin 1 and 2 on the voltage regulator and checking for voltage at the pin and the pad and there’s nothing. If I am not getting 13 volts at pin 2 of the voltage regulator or at the pad or pin itself, then Where is the block? Isn’t that Input to it? I don’t see any component in...
  6. B

    No Power to board? But meters light up.

    Yes. I run it off DC power, not plugged in. So one question I have does the power supply board (Tr301,401 etc etc) come into play with it running off DC or does it basically bypass that whole area?
  7. B

    No Power to board? But meters light up.

    Well I’ve been trying to do that and haven’t found it yet. That’s why I was asking for help on where to look.
  8. B

    No Power to board? But meters light up.

    No voltage on that chip anywhere. But again the meters and clock/frequency counter are lit up bright. (Though the frequency is wrong). No voltage in the main board. Checked that 12 volt rail area and same, no power. It sounds like voltage regulator doesn’t it? But like I said i replaced that...
  9. B

    No Power to board? But meters light up.

    I will check the audio chip. I was referring to IC4, MB3756.
  10. B

    No Power to board? But meters light up.

    Yes. It only runs off DC. Not plugged in to AC.
  11. B

    Need new channel board for Cobra 2000

    Yes, the board with the 2 LEDs . My board is damaged.
  12. B

    Need new channel board for Cobra 2000

    That doesn't seem to work either. Site times out.
  13. B

    Need new channel board for Cobra 2000

    thanks, but these links don't seem to work
  14. B

    Need new channel board for Cobra 2000

    Yes. I have the digits, the board is damaged. I check eBay all the time but unfortunately nothing.
  15. B

    No Power to board? But meters light up.

    My Cobra 2000 has yet another problem. It’s connected through a DC power supply that has 13 volts in. the radio turns on and all the meters light up nice and bright. But there is no power to the board otherwise. I changed the voltage regulator but that made no difference. I lifted pins 1 and...
  16. B

    Need new channel board for Cobra 2000

    Yeah tried that. No go. . Thanks.
  17. B

    Need new channel board for Cobra 2000

    Anyone have or know where I can find a replacement channel board for a Cobra 2000? One I have is cracked down the middle and is not working.
  18. B

    Cobra 2000 No Tx.

    there is definitely carrier I can hear on the other radio. So I think the problem is definitely in the power section.
  19. B

    Anyone have a working Channel readout board for Cobra 2000?

    Need to replace this board. Anyone have one to sell?
  20. B

    Cobra 2000 No Tx.

    Replaced driver, final and various other suspected parts. Absolutely no tx power on am or ssb!