Chuck,
Sorry, I was not at all clear, I should not have used the term "continuity" as I am using the Diode Test function on my DMM.
To be precise:
IC7 is open (infinity) in one direction (Red on Pin 2 and Black on Pin 1) and the meter reads 1.305 (volts) in the other direction (leads reversed from previous).
IC2 reads .512 (volts) in BOTH directions.
One thing that I have learned is that when two supposedly identical devices test so differently, using the same test instruments, there is a good chance that one of the two is defective.
I have also seen two posts on different web pages that have pointed to optocoupler failures on this particular power supply.
Does this alter your assessment of the situation?
I am always suspect of my knowledge and abilities, NOT questioning anything that you are trying to convey to me.
I appreciate your response and your patience.
Sincerely
--
Michael Lynch
Dardanelle, AR