|
best way to trouble shoot HV would be to start with voltage readings on the horz out tube. the 5 has a 82 ohm resistor in the cathode circuit, and pulls cathode current thru the static converge pots. Get a resistance reading on the cathode pin of the tube socket and I will compare one of mine (or if you have a SAMs see if there is a resistance chart you can check). besides drive issues (which I doubt you have if the fly is not getting hot) You should check the screen voltage and with the plate lead disconnected and the tube pulled, check the Hor out plate cap lead and see if you have full B+ there. You did say you subbed known good tubes for horz out/damper/shunt/focus?
|