Grangur Posted June 18, 2017 Posted June 18, 2017 Just a couple of days ago I picked up a really nice Warwick FNA Jazzman 5er. Its really nice and I enjoyed it until I took it apart to re-finish the body. Before I tool it apart, the bass was really dirty and the MEC Pre-amp has a couple of problems. [url="https://flic.kr/p/UFFoGD"][/url] The small selector switch that switches between the coils on the HB pup, seems to only switch between the bridge coil, on it's own, and both coils. It's not possible to have the bridge coil on it's own. I think this is probably down to a faulty switch. The more significant problem is the Treble-boost/cut pot doesn't seem to do anything. The Mids and Bass pots are fine, but the Treble pot does nothing. Is there anyone here in the collective who's worked on these? Does anyone have any light to shine on what might be the problem< or even better, the answer to the problem? My initial thought was to spray the pot, but I think this is a little unlikely that you'd have nothing at all. I've looked at the wiring connections and those appear to be ok. There's also no obvious damage to the circuit board either. Any ideas? Quote
ikay Posted June 19, 2017 Posted June 19, 2017 If you have a multimeter it's easy enough to check that the pot is working. I'd do that first. If the pot's OK then at least you can isolate the problem to the preamp end. Quote
rmcki Posted July 3, 2017 Posted July 3, 2017 I think the switch is only for the humbucker, the switch changes the wiring to offer; parallel, single and series options. [url="http://www.warwickbass.com/en/Warwick---Basses-Made-in-Germany--FNA--FNA-Jazzman--4-5-string--Manual.html"]shematics here[/url] Nevery experienced a pot not working without cutting the signal, maybe the pot cleaner would be worth at shot before spending £40 on a new pot from warwick Quote
bartelby Posted July 18, 2017 Posted July 18, 2017 Hey Grangur, did you have any luck sorting this out? I've found a spare MEC 100k pot you can have, if you need it. Quote
goingdownslow Posted July 19, 2017 Posted July 19, 2017 I had what I thought was a similar problem when I got a Thumb Bass with 3 band eq., already owning a 2 band model. It turned out I had the frequency range that it boosted (8khz I think) cut on my amp. Quote
goingdownslow Posted July 29, 2017 Posted July 29, 2017 Did you get this sorted? What did it turn out to be? Quote
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