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Thread: Connex 3300 hp

  1. #1
    Thumper is offline Apprentice Mauldropper DX Numbers: 141 Home Channel: lower36
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    Default Connex 3300 hp

    I have a Connex 33 hp that won't receive or transmit, but the radio lights up. D7 checked out okay but I don't have 8volts at regulator? Thanks for and advice.

  2. #2
    577-Jersey's Avatar
    577-Jersey is offline Pro Mauldropper DX Numbers: 577 Home Channel: 19 31
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    Does the light change from green to red while RX and TX'ing.I bet TR-51 might be out.Does PA and or Talkback work?
    I love Cobra Coffin Mics.

    I know my redeemer lives!
    https://www.youtube.com/watch?v=NWeEYKqAdQ8

  3. #3
    577-Jersey's Avatar
    577-Jersey is offline Pro Mauldropper DX Numbers: 577 Home Channel: 19 31
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    TR38 Collector=8.0V in TX and 0.0V in RX
    TR36 Collector=0.0V in TX and 8.0V in RX
    Also take a close look at TX/RX led on the front faceplate and if the
    normally green led seems to look slightly yellow/orange in RX then you
    know that there is a problem in the TX,RX switching circuit and the
    high failure items in this area are D77,TR38 & TR36 in that order.

    Check that the 10.240 signal is making it to the PLL also,,somebody could have over tweaked this thing into an unlocked state.

    Never over look a bad/cold joint is the cause of 90% of these problems,,flex the board really good and use a toothbrush(hard plastic end)to move joints around and see if you can get it to intermittently work...to rule out if the final(s ) are bad just short out or jump pins emitter and collector together on TR-51 and key the mic,,you should get a big carrier.

    You don't have 8v at the collector of TR-41??

    Good luck 577-Jersey
    Last edited by 577-Jersey; 10-02-2013 at 09:29 AM.
    I love Cobra Coffin Mics.

    I know my redeemer lives!
    https://www.youtube.com/watch?v=NWeEYKqAdQ8

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    I've seen this problem in Galaxy radios before and everytime I replaced the static eradicator... problem solved.

  5. #5
    4-400's Avatar
    4-400 is offline Sheep Shagger say what? DX Numbers: KZ01 Home Channel: 10.000 Mhz
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    yeap same effect happens when you remove the dickiebarpinsignalsucker
    This post was not endorsed by Mauldroppers.com or the N.S.A
    Quote Originally Posted by -=PEAKABOO=- View Post
    I detect shenanigans somewhere in this thread and my eyes hurt.


  6. #6
    577-Jersey's Avatar
    577-Jersey is offline Pro Mauldropper DX Numbers: 577 Home Channel: 19 31
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    Come on brother!
    Pull those switches out and test them with a transistor tester,,you can pick up a good tester off ebay pretty cheap,,or just google how to test a transistor with a DVM,,if the tranny has a diode protection shunt in one of the junctions it will be a bit tricky with a DVM,,but you will be fine

    Let us know man before we forget where we are here!
    I love Cobra Coffin Mics.

    I know my redeemer lives!
    https://www.youtube.com/watch?v=NWeEYKqAdQ8

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    Dont forget to check the gonkulator valve.








    Quote Originally Posted by 577-Jersey View Post
    Come on brother!
    Pull those switches out and test them with a transistor tester,,you can pick up a good tester off ebay pretty cheap,,or just google how to test a transistor with a DVM,,if the tranny has a diode protection shunt in one of the junctions it will be a bit tricky with a DVM,,but you will be fine

    Let us know man before we forget where we are here!

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