fat pants question

[chris weaver]

having trouble with this build, built several over the yrs? My voltage at r7 goes from 9v to .40 ...22r 1/4w resistor... am I losing my mind? am I missing something? after that part seems pretty consistent .40 volts in the build?

[madbean]

Well the first thing I would consider is that you have not used a 22R but something much higher. What's the color code on the resistor you've used?
Alternatively, something with the charge pump could be sinking current.

[chris weaver]

i verified it, red red black gold brown, and i put a new one in for good measure....could it be the zener ?

[chris weaver]

i put a jumper in & got the same reading

[madbean]

post a pic of top and bottom please

[chris weaver]

1

[chris weaver]

2

[chris weaver]

So, I was thinking, maybe I should replace the d1 for giggles. Also perhaps do a continuity test ...maybe there's a bad trace ?

[zgrav]

checking your zener sounds like a good idea.  something is dropping your voltage in that part of the circuit.   what voltage reading are you getting at d5 & c11?

[chris weaver]

.25 & .22...i think the board maybe bad, never got a bad board from bean, but i have from a couple other places. I'm going to order a new one & start over!