Kliche mini diode pads shorted to gnd.

[Ismacdon]

I'm not sure if the pcb is bad or the switch but all 4 diode pads are shorted to gnd. I'm going to replace the switch tonight, thought maybe someone else has seen this. I bought a few of these boards and the rest are solid.

 

[Robert]

Is that the Ge diodes or the 1N4001 diodes?

 

[Ismacdon]

It is the Ge diodes. I'm a clinical engineering tech and have proper training so I'm positive heat is not the issue...pads are intact.

 

[Robert]

Take a close look at the switch wiring pads, if that doesn't help I can send you a diagram of the top/bottom traces.

That particular net snakes around the board a little.

A manufacturing defect isn't impossible, but I'd rule out everything else first.

 

[zgrav]

Are the GE diodes already in the board? Maybe they are defective.

 

[Ismacdon]

Thx for the replies gang. Just removed the switch and the short is gone. Switch was wired properly so internal fault perhaps. Thx again!

 

[Ismacdon]

One of my previous Kliche builds...really like these boards. Bought 18 boards in total.

 

[Ismacdon]

Oh i'd love a diagram of the traces

 

[ambusch85]

Keep in mind the switch will ground out the diodes when in bypass.

 

[Ismacdon]

Thx Ambusch, these were grounded out in both positions...haven't gone back to it since removing the switch, but i'm confident that was the problem.