Gibson RD artist electric problem

[andysleigh]

hi all

iv had this intermittent screaching problem with my RD artist, it happens when ever the bright mode is engaged.

any thoughts as to why it does this
 

 

[Bigguy2017]

That sounds like something going into oscillation.

Most likely;

  dry joint/bad connection

  bad decoupling capacitors

  op-amp or transistor faulty

  faulty bright switch

Have a really good look at the PCB, check the soldering, look for leaky/bulging caps.

Unplug/replug all the connections, give them a squirt of Deoxit. Give all the wiring/connectors a wiggle to see if you can localise the problem.

 

 

https://www.flyguitars.com/gibson/bass/RDartist_techinfo.php

https://www.flyguitars.com/gibson/bass/RDartist_circuit_diagram.php

That's a beast of a circuit diagram...