[ti_chris]

Hey, I think that I may need to change my board, but wanted to check first to make sure that I'm diagnosing this properly. I have verified that I'm getting 120vac in on the board. I have also verified that the transformer produces 24vac (unregulated = 29vac). When I measure the voltage between common & red terminals, I measure 0v. For some reason, I'm not seeing any voltage on any of the screws despite the fact that the board is getting powered. Given that I'm not seeing any power on the terminals, I'm assuming that it's the board. Thoughts?

 

[zappa]

Any fuses on the board?

 

[ti_chris]

Yes, I see one fuse in there... And sure enough, I pulled it out of the socket, tested it for continuity and in case the black 'spot' in it didn't hint it enough, it failed a simple continuity test. So It looks like I'll be buying a new fuse instead of a new board . Thanks, I should've thought about this...

Any fuses on the board?

 

[beenthere]

Check to see if you can find out why it blew.

 

[zappa]

Any ideas why it blew? In almost all cases it indicates a problem with your system unless you accidentally shorted the power and common while working on it.