B
BobC
Guest
The Convergence Pwr Supply continues to fail.
I have tried higher rated regulators ... they fail after a few days.
I noticed that the data sheet for the STK730-130 shows a 'drive circuit'
between pins 4 & 5, however, even with new ICs this resistance
measures a short ??? (I am posting a separate question about the
STK730-130 IC in an effort to resolve this problem).
I came across another set that has been in the field for two years that
someone had intentionally shorted the Emitter-Base of Q19700. I am
wondering if there is a know problem with this regulator circuit and
someone inhibited Q19700 for a reason ????
I have tried higher rated regulators ... they fail after a few days.
I noticed that the data sheet for the STK730-130 shows a 'drive circuit'
between pins 4 & 5, however, even with new ICs this resistance
measures a short ??? (I am posting a separate question about the
STK730-130 IC in an effort to resolve this problem).
I came across another set that has been in the field for two years that
someone had intentionally shorted the Emitter-Base of Q19700. I am
wondering if there is a know problem with this regulator circuit and
someone inhibited Q19700 for a reason ????