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So far I've been unable to find a replacement part. Based on what @kloppk said above and a lot of pictures online it seems like the output FETs burn up often. I've replaced those but I'm still not getting output. @kloppk When you fixed the one was there anything wrong other than the FETs...

Several days with no reply from mac/mc so I don't know if he's traveling or what. Does anybody else have a source for a replacement Woodward 8270-1002 Governor Module? @kloppk maybe?

I pulled the governor module today. No signs anywhere of any damage or burned components. The conformal coating has obviously been messed with by somebody before me but no signs of damage anywhere. I'm just waiting on a reply from mc/mac now to buy a replacement.

Thank you both for you inputs! I definitely got a result. 1st I fixed the wires on the switch. Only one was in the wrong place and everything acts normal again so that was easy. 2nd I checked all the things ya'll suggested from @kloppk 1) 24 volts DC power across terminals 3 & 4 ===>...

I finally found the wire numbers tonight. They are in "Figure 8. Control Box Harness Assembly" of TM-9-6115-643-24P. Posting here in case it's every helpful for anyone else. The Master Switch (aka Start Switch) is known as S1 in the schematics. Terminals 2-4-6-8 are all jumpered together on...

I have a similar but different starting problem from the other 804A start problem threads. I've read everything in those threads and I think I've done all of those tests (details below) so I "guess" I'm down to the governor module being the problem but I want to be sure first before just...