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2995-DX power supply conversion

Discussion in 'CB and Export Equipment and Accessories' started by Glazierman, Jan 24, 2013.

  1. Glazierman

    Glazierman
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    Has anyone done a P.S. conversion on the 2995-DX using the Mega Watt S-400-12 ?? If you have could I get some help With this Wiring Conversion?? Thanks.


     

  2. TIN_CAN

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    I too am interested in updateing my 2990DX power supply, with a Meanwell SE-600-15 powersupply, just need to know what are the positive and negative leads on my 2990DX, probably the same as a 2995dx. These guys do the conversion.

    RCI-2995DX New Power Supply Upgrade
     
  3. AudioShockwav

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  4. Glazierman

    Glazierman
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    Well I figured it out was really very easy after I realized what had to be removed
     
  5. WR3143

    WR3143
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    Did mine myself... yesterday.
    PS is a tad too big to fit square so the frame arm wont line up with holes in the back case cover. ...
    The case won't go on unless you remove the sheild box around the PA board and move the PS over too clear the frame arm.
     
    #5 WR3143, Sep 25, 2016
    Last edited: Sep 25, 2016
  6. WR3143

    WR3143
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    Did you remove the sheild box or ???
     
  7. BBB

    BBB
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    A local shop does this mod. I have a couple of these 15 VDC 40 amp MeanWell's just waiting to be dropped in but the dang factory power supplies won't fail yet :ROFLMAO: Bare in mind that the fans in the MeanWell's are loud and may warrant a Hi/Lo fan speed switch if you DIY.

    [​IMG]

    [​IMG]

    Photo courtesy of R $ R Communications, DE
     
  8. LaValle

    LaValle
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    Just picked up a 2995 yesterday, any chance you could share your install procedure/pics?
     
  9. BBB

    BBB
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    Some are using a smaller 30 amp Meanwell supply. That looks to require less cutting or removal of internal radio parts than the 40 amp'r to fit. The 40 amp @ 15 VDC is the Hot Setup. Again, remember there will be some added cooling fan noise from the new switching power supply.

    Pretty straight forward power supply replacement... Find out what 120VAC power wires go to the old power supply and mark them. Find out what 12VDC wires come out of the original power supply PC board and go to the main radio board and mark them. There is a chance that there may be some other 12VDC power wires that go to the lights, amp etc. (Take a photo of all wiring before you disconnect or cut anything) cut and remove old power supply components such as the transformer, filter caps, power transistors and rectifier board. This makes room for the new power supply. Shoe-horn in new power supply and connect primary the 120VAC wires and secondary 12VDC wires. You could fuse those secondary 12VDC wires if you like for some added protection.

    You can reference the radio's wiring here:

    http://www.cbtricks.com/radios/rci/rci_2995dx/graphics/rci_2995_dx_sch.pdf

    Basic quick video showing what the finished project would look like and what components where removed in a similar radio:

     
  10. LaValle

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    Hi and THANK YOU - I'm going to stay with the 40 amp supply due to amplifier needs - much appreciate your response!!
     
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  11. jon666

    jon666
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    my 2995dxcf already has the switching power supply
     
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  12. MarkIV

    MarkIV
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    That's crazy. This radio does not warrant a 40amp power supply.
    Mega Watt sells a drop in supply. I think it's the same dimensions as the factory Mean Well supply.
     
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  13. LaValle

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    LOL Mega watt has two power supplies, a 33 amp version for $50 and a 36 amp version for $65 - the 4 extra amps I'm installing ain't gonna hurt...
     
  14. jon666

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    i just happen to have 2 of the 40 amp ones laying around. so i dropped one in. i still have another one. and i got the 50 amp one im not using. fan is to dam loud. for my liking.
     
  15. LaValle

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    Power to the people (pun intended)!
     

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