Jason

Help has arrived! You have a C-5 type chassis. Service literature
is CM-143.
Similar boards a 9-1131 and 9-1132.

Going back and looking at your posts, am I correct that you have a
dead unit? You said the spark gap was sooty so the CRT is not at
fault. MAYBE you're right, but you could be wrong. I have seen plenty
that literally had the spark gap blown to pieces, still ran, only to
have the CRT arc later and take out the SMPS.
And, from the looks of the pix you posted, somewhere down the line
it was around a serious smoker!
Hope this information is helpful to you.


David, on the Illinois prairie.