Please Help: How to Test a Pickup?? - Jemsite
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post #1 of 5 (permalink) Old 02-04-2003, 09:11 AM Thread Starter
Join Date: Mar 2001
Location: Va Beach, VA
Posts: 1,416
Please Help: How to Test a Pickup??

Obviously I am not an Electrical Engineer (I just play one on TV). My newly acquired Jem's bridge pickup has no signal is very very faint. I know the switch is dirty and I am going to rewire the whole assembly this week and clean everything thoroughly. While I have it all apart, is there a way to test to see if the problem is with the pickup itself? Can I put a multimeter to the coils or the wires and see if it reads something....what do I do to test whether the pickup is good or bad????

Many thanks....Brad
Gresh is offline  
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post #2 of 5 (permalink) Old 02-05-2003, 10:37 AM
Join Date: Oct 2002
Posts: 48
Try to measure the Resistance... these are given on the Dimarzio site. The resistance of the coils in series should be the value given. Then trie the values of the separate coils. If one coil resistance is infinite, it is still able to give a signal, but this will lack low frequencies. Also check the wires... good luck!
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post #3 of 5 (permalink) Old 02-07-2003, 10:43 AM Thread Starter
Join Date: Mar 2001
Location: Va Beach, VA
Posts: 1,416
Downloaded the wiring diagrams from here, bought an allparts five way and a new tip and rewired it all. Your testing hint worked as well so I new the pickup was good. Now she's quiet as a mouse and everything works as new. Love those Evo's!!!!!!!!!
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post #4 of 5 (permalink) Old 02-07-2003, 01:03 PM
Join Date: Oct 2002
Location: Belgium
Posts: 318
a humbucker is nothing but 2 coils. A coil is a woundede wire. Check the resistance...Indeed even if one wire is broken you will receive some lower resistance. Check and compares the specs of the pup.
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post #5 of 5 (permalink) Old 02-08-2003, 11:57 AM
Join Date: Oct 2002
Posts: 48
Cool! Kick ass with it!!!
Sadegh is offline  

bridge pickup , wiring diagram

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