Badcaps Forums - View Single Post - Dead but clicking Hanns-G HC194D?

**stj** · 11-21-2021, 02:53 PM

if the 5v is good and both voltages are from the same transformer,
logically either the 7812 regulator has an internal fault dragging the voltage down, or you need to look at what is between the regulator and the transformer feeding power into pin1
it could be as simple as a bad rectifier diode.

11-21-2021, 02:53 PM	#18
stj Great Sage 齊天大聖 Join Date: Dec 2009 City & State: Europe My Country: some shithole run by Israeli agents I'm a: Professional Tech Posts: 26,406	Re: Dead but clicking Hanns-G HC194D? if the 5v is good and both voltages are from the same transformer, logically either the 7812 regulator has an internal fault dragging the voltage down, or you need to look at what is between the regulator and the transformer feeding power into pin1 it could be as simple as a bad rectifier diode.