Hi Keith,
have you turned the lights out and looked at the back of the crt to see if the filament is glowing?
the deflection plate connections are little pins on the neck of the crt, usually about 5 inches from the crt socket. these pins are very delicate and very easy to break. the tek guys used to carefully unplug these connections, two vertical and two horizontal , then check the "dot" on the crt screen. if things are working the "dot" should be about center. ?you're intensity should affect it.
if the dot does not appear, check your z axis and crt stuff. if the dot is there, you could have a deflection amplifier problem that keeps the beam completely off screen, fooling you into thinking the crt is bad when it is just off the screen.
just be very careful with these pins. they break very easily
jim
On Jul 10, 2012, at 3:44 AM, Albert wrote:
?
Hi Keith,
As far as I know your Fluke 27 is average-based, not true RMS. Then the reading for square wave input will be higher than true RMS.
Albert
> I also wanted to make sure the CRT heater voltage was present- measured about 8 VAC RMS at pins 8 & 9 on P1704. A little high, but I guess that's OK.
>
> Keith Ostertag
