[Dave A]

Weeks later as work permits, I am back in business with a working set.

Not ready to do the IC change, I did a search for the full AZ board which is the suspect for the death of the set. Many hits with "not in stock", "not available", etc. And then I found one. Ordered and arrived a few weeks ago. $145. It was odd with many Sharpie marks across the board like tests across many points like a refurbish.

Sunday was a good day to do the surgery. 4 hours worth. I have the manual which does not show the complete disassembly. I am on my own. About 25 connections to pull apart. Not sure what rides where. AZ board has three daughter boards on top. But all of the connectors are local and cannot go anywhere else and no two are the same locally by pinout.

Unscrew the main rear I/O from the back and you are good to go. It is a daughter board. The RF input stays on the back. The big power module unscrews from the AZ board and rides with the back. Wrestle the back from the lower case snap connectors. Many screws on the AZ board later and it is free.

New board snaps in and is confusing with the degauss connections. New pinout positions on the new board. I did not snap a pic of the old. Only three are used and I got them right. I was ok as I did not have four marked on the old.

Power up and all is well. It seems happier now. Some left edge convergence is gone. I also had a chance to get to the main focus and tweeked it. Much better after 7 years. If you have one, look at the back side, lower left on the diagonal corner and drill a hole. Focus is the upper control. Drive is the lower painted in place lower control.

Now I will look at refurbing the old board for future to keep CRT HD alive. Phosphors rule.