testdepth
New member
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- Location
- Greenacres, WA
Looking for assistance on troubleshooting to determine if the problem is definitively the A11.
Symptoms are the typical, no voltage after start up. While holding the start switch in the start position voltage will build to about 50vac but immediately drops to 0 as soon as start is released. Removed the A11 cover and inspected all components and nothing burned or obviously broken.
Disconnected all amphenol connectors, sprayed with CRC contact cleaner dried with lp air, reconnected, did same for all connectors.
Questions:
1 - Is there a definitive test to say the problem is the A11 and not somewhere else?
2 - Anyone have a 50/60 cycle A11 for sale?
3 - Does anyone have a “theory of operation” description for the exciter/VR they could share to attempt a component level repair. I do have a DVM and o’scope if all else fails!
thanks,
Mike
Symptoms are the typical, no voltage after start up. While holding the start switch in the start position voltage will build to about 50vac but immediately drops to 0 as soon as start is released. Removed the A11 cover and inspected all components and nothing burned or obviously broken.
Disconnected all amphenol connectors, sprayed with CRC contact cleaner dried with lp air, reconnected, did same for all connectors.
Questions:
1 - Is there a definitive test to say the problem is the A11 and not somewhere else?
2 - Anyone have a 50/60 cycle A11 for sale?
3 - Does anyone have a “theory of operation” description for the exciter/VR they could share to attempt a component level repair. I do have a DVM and o’scope if all else fails!
thanks,
Mike