Tips / trick to getting UNDER the PCB on old Marshall?

Discussion in 'Amps and Cabs' started by andyk, Feb 7, 2015.

  1. andyk

    andyk Supporting Member

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    I'm midway through my LarMar install on the '76 JMP I just got.

    I was able to remove the orange and green bias wires and resistors from the board by tipping it up slightly. To solder the new LarMar wires to the board, I need to flip it - is there any way to do this? Doesn't seem like there's enough slack in the wiring :bitch!?
     
  2. fusionbear

    fusionbear exquirentibus veritatem Gold Supporting Member

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    It is important to do it right, so I suggest you remove all the knobs and jacks off of the front panel and unsolder the choke/B+ connection on the side of the board closest to the front panel. This will allow you all the slack needed to flip the board completely over and resolder properly.
     
  3. andyk

    andyk Supporting Member

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    Ah, jacks and pots need to be off the front? I'll give that a try, thanks !
     
  4. andyk

    andyk Supporting Member

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    LarMar installed! Works great!

    [​IMG]
     
  5. Ultra GP

    Ultra GP Member

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    How's it sounding with that?

    That amp definitely was a bit more 'tame' than the '75 I mentioned to you, but still a great tone.
     
  6. andyk

    andyk Supporting Member

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    Sounds great - but tame it's not! The volume increases from 1 to 3. Then it's all gain!
     
  7. RussB

    RussB low rent hobbyist Silver Supporting Member

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    Nicely done andyk! :aok
     
  8. andyk

    andyk Supporting Member

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    Thanks!
     

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