No sound - All LEDs suddenly stopped ligthing

[sjeffrey]

I just measured the voltage 24 hours later and it's still at 156V.
I know the power supply's path is incomplete somewhere but is it safe to poke around?
I would rather there be no voltage but waiting several days for it to go to 0 is impractical.
What can I do?

 

[Paul Birkeland]

Do you have the 270K resistor installed?

 

[sjeffrey]

Do you have the 270K resistor installed?

I do, from U12 to U13.  The solder there looks fine.

 

[Paul Birkeland]

What voltage do you have between 12 and 13?

 

[sjeffrey]

What voltage do you have between 12 and 13?

Between 20-21 it was still 147V after 48 hours.
I assume you wanted between 12 and 13 with power on and it was .018V and slowly climbing to .022V after about 5 seconds with probe on.

 

[Paul Birkeland]

Since the voltage isn't bleeding off, either one of the 270 Ohm resistors or the black wires connecting between the striped sides of the 220uF capacitors is missing or not well connected.  If you poke around with a chop stick, you should be able to temporarily restore the connection.

-PB

 

[sjeffrey]

Since the voltage isn't bleeding off, either one of the 270 Ohm resistors or the black wires connecting between the striped sides of the 220uF capacitors is missing or not well connected.  If you poke around with a chop stick, you should be able to temporarily restore the connection.

-PB

I'm stomped.  So tapping with a chop stick I was able to restore a connection and therefore drain what was stuck at 20-21.
I looked at all back wires around 12-16, made sure everything was there.  Capacitors are correctly installed.  I couldn't find anything wrong.  I reflowed the solders in that area.  It's really crammed in there.  At first it didn't help but with more tapping around and push of wires it came back to life.  I wish I knew which one is the problem as I reflowed everything and that didn't directly fix it.  I guess I'll be looking at this again next year  :-[