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- Posts: 8
- Joined: Tue Oct 23, 2007 1:41 am
- Location: Seattle
I tested both of the filament contact points on the external board on the sideboard, with each one turned on, respectively, and there was no current (uA) to either in both cases. No other problems are evident so I suspect the controller to the filaments OR some power supply. I would rather not have to bring Agilent in if I can easily diagnose which board needs to be replaced, ie is it the power supply board, sideboard, main board,etc. etc. Unfortunately, I don't have any schematics to let me know which test points to use on any of the boards.
Does anyone have any schematics or advice?
One historical aspect that may be indicative of what is going on - couple of months ago, I had a similar problem when Fil 1 would only light at a very very dim intensity while Fil 2 would not light at all. Both filaments tested fine. Restarting the entire system didn't help. The way I solved it last time - not on purpose - was to have the whole thing off for about an hour and then turn it back on. It worked once again so I thought that there was some type of communication problem with it. Now, though, that doesn't seem to be an appropriate solution, and I am suspecting power supply problems although I am surprised that there are no error messages.
Thanks,
Nick