Quote:
Originally Posted by Jon1967us
You say you worked on a version of this TV? The one thing I would like to know is if it's possible to power on the set with the CRT outside the chassis, so you don't have to go in and out of the chassis as you're working on it.
|
It's series heaters so you have to short the heater pins or connect a dummy load resistor of correct value (which you compue the resistance and power of based on the current and voltage spec of the CRT heater on the CRT data sheet.
One option to service this set is to remove both the CRT and chassis from the cabinet then connect the 2 on the bench. If you have a long length of spare HV wire for the HV lead you could extend the HV and yoke leads to reach into the cabinet with the chassis outside the cabinet and use the sets own cabinet and CRT as a test jig for it.... probably good to put any floating HV connections in a glass jar or mug to prevent arcing.