Quick question to help me isolate a blown fuse problem:

Our wild fyre blew the F5 fuse (3/4A) for the 190V supply. I've found that the 2N3584 is a common culprit, but I'd like to isolate the issue rather than tearing into the voltage regulator board. I'm wondering if the real culprit might be one of the displays going bad, given their age.

So the question is: Can I disconnect the connector to the gas display tubes to help isolate the problem without damaging anything?

Thanks for any help!

Update: After reading into this a little more, I think there is a fuse on the Vreg board for the +190V (although the schematic doesn't show it). So perhaps the displays are OK after all if that fuse didn't blow. Plus, I assume I can remove that fuse to disconnect the +190V from the displays w/o removing the connectors on the displays. I haven't check to ensure the correct fuse is installed on the Vreg board.

Yep, forgot to mention that aspect. I had to replace one of the other bridges not long ago. I'll check with a DVM and work my way towards the other boards. I'm an electrical engr., so easy peasy.

Hi Quench!,

Will do. Thanks.