Quote:
Originally Posted by DMcMahon
Motor boating can be caused by several things including bad/leaky decoupling capacitors.
See Post # 7 of this link :-
https://www.google.com/url?client=in...PymiV0wgQsMSiv
I have never done this fault finding technique of adding a capacitor in parallel, if attempted be very careful as some of the decoupling capacitors will have appreciable DC voltage. |
It was normal procedure when I was in the servicing trade, if bridging the reservoir capacitor charge the bridging capacitor across the filter capacitor first....don't forget to discharge it when finished.
Just to note that one of the HT decoupling capacitors relies for its connection to circuit by PL5-SK5 (pin 3)
Lawrence.