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Joined:
January 2017
Posts: 7
| Hi All,
I have a mid 70's Deacon (humbuckers) which I'm trying to sell, I've had it up for sale since October and I tested it then and it was all working and it's been in the case since but someone contacted me the other day who is interested in it so I took it out put a couple of batteries in it and no output.
If I crank the volume up from the noise I can hear the volume, tone and notch filter are working but a very very low virtually inaudible level from the pups if I tap them with a screwdriver, I'm assuming one of the transistors has probably gone faulty so I guess I'll need to remove them from the PCB and test them, any other ideas on what it might be? |
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Joined:
January 2017
Posts: 7
| Further testing reveals the JFET Q3 is faulty as I have no continuity between the gate and the source or drain in either direction, so I'll need to source a replacement.
Edited by raf 2020-04-24 1:46 PM
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Joined:
January 2017
Posts: 7
| More testing reveals all 3 FET's are faulty, Q1 has continuity in both directions from gate to source & drain while Q2 has no continuity either way. |
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Joined:
January 2017
Posts: 7
| I've replaced the FET's and all now appears to be working :-)) |
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Joined:
January 2006
Posts: 1111
Location: NW Washington State | I was going to reply to your earlier posts, got here and see that you fixed it.
Anyway, here's a thread with links to schematics:
http://www.ovationfanclub.com/megabbs/forums/thread-view.asp?tid=32...
Steve W. |
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Deacon Problems