S450 picking hum - Jemsite
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post #1 of 3 (permalink) Old 04-22-2008, 07:48 AM Thread Starter
 
Join Date: Apr 2008
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S450 picking hum

Hello

I have problem with my Ibanez S450 (hsh, 5way OTAX switch, stock pickups) picking noise. It seems to be 50Hz/100Hz, its level follows volume knob setting, also it reacts to tone control just as a pickup signal. With single coil is most visible, a bit less with humbuckers, h+s and s+h configs seem to be most quiet...

Is it maybe any "common" problem, with well known solution?


I'd like to try rewire everything (provide true star grounding scheme, separate signal ground from shield ground) to try if it helps. Prior doing this, I wanted to check if current wiring follows original diagram - but I cannot find it anywhere (S450 is 1991 model, while wiring diagrams on ibanez webpage are available for models since 1994). I thought it should be similar to S470, but 5way switch seems to be wired other way...

So - anyone knows where could I find S450's wiring diagram?
And - maybe - photos of elecronic cavity of S450/S470 model?

thanks
marcin
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post #2 of 3 (permalink) Old 04-23-2008, 11:20 PM
 
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Re: S450 picking hum

Hi, i think that the diagram of s370 (1994) could works, similar configuration v1-s1-v2 and the otax switch
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post #3 of 3 (permalink) Old 04-24-2008, 04:51 PM Thread Starter
 
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Re: S450 picking hum

Quote:
Originally Posted by mackself View Post
Hi, i think that the diagram of s370 (1994) could works, similar configuration v1-s1-v2 and the otax switch
It appreared that wiring is quite similar to that one (and other configs with OTAX), difference is that in my guitar other section of 5way switch is used.



Other thing is that grounding scheme doesn't exactly follow diagram - some of wires are grounded at the 5way switch. Could someone with guitar matching such circuit (S370/S450/S470/S540 with OTAX and 3wire HBs) take a photo of wiring cavity?

thanks,
marcin

Last edited by zorba128; 04-24-2008 at 06:04 PM.
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