Hi Jim- Unfortunately, with this model scope the crt is almost completely and tightly surrounded with aluminum frame and circuit boards making it very difficult to see much of the crt itself.
I did find the horizontal deflection plates connectors beneath the horiz board. But the vertical board is attached to the side of the crt adjacent to the frame and not very accessible. Yet.
The z-axis board completely obscures the end of the crt, and the connectors are beneath it.
Of course this is complicated for me by the fact that I have to struggle so much to read the pdf's- sections of some of the board component placement photos are unreadable, and even some of the circuit schematics are difficult to read- is that an "8" or a "6", etc.
I'll keep looking.
Thanks,
keith
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--- In TekScopes@..., Jim Popwell Jr <jpopwell@...> wrote:
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
