开云体育

ctrl + shift + ? for shortcuts
© 2025 开云体育

Re: Continuity


Simon Thompson
 

开云体育

Thanks!

On Mar 26, 2017, at 12:37 PM, Jerry Gaffke via Groups.Io <jgaffke@...> wrote:

Main 12v PWR to GND will be just a few kohm due to bias resistors, for example the path through R13,14,15,16 in the upper left of the schematic.

PA-PWR to GND resistance will gradually increase (not decline) as C157 charges up, Q15 is off with no power applied and the current has nowhere else to go.

Your board is probably just fine.



On Sun, Mar 26, 2017 at 12:15 pm, College Professor Simon Thompson wrote:

measured resistance between positive and negative at PWR 1 about 3.13 KOhm

measured resistance between positive and negative at PA-PWR 1 about 40 MOhms, then declines

measured resistance between positive terminal at PWR 1 and positive terminal at PA-PWR 1 about 15 MOhms then declines


measure resistance between negative terminal at PWR 1 and PA-PWR 1? ? 0 ohms

?


Join [email protected] to automatically receive all group messages.