Boogie 57 – No sound (solved)

[Thomas a Meacham]

Hi everyone… I recently finished the Boogie 57 and on the test rig it works great. When I connect the jacks, foot switch, all I get is an oscillating  rumble when foot switch is engaged. with foot switch disengaged, it passes clean guitar sound.

 

I look forward to learning what my mistake is.

 

[Barry]

Perhaps loose jfets when moving things around?

The jack wiring looks correct.

[Thomas a Meacham]

Thanks for the quick reply Barry, I will check them.. also, if you noticed the 10004 diode, I burnt one of the solder pads and relocated what I think is the correct alternative (it works ) do you see any problem?

[Thomas a Meacham]

problem solved… used my audio probe and found several marginal solder joints. reflowed and works as it should.

[Author]

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