01-06-2015, 04:12 AM
(This post was last modified: 01-06-2015, 04:22 AM by GoldenVulture.)
Guitar unplugged - vol and tone up full - switch set to centre -
Connect your MM ground to ground some where other than the switch, try and connect it so you don't have to hold it.
Set your MM to the X 1k range and set it to zero [ by holding the + probe to the - probe or ground some where ] and adjust the needle to zero ]
Put the + probe to the signal out of the switch.
If it was working properly it would read aprox half the the geater value of the two pups -assuming their ohmages are close to each other , + or - a few Kohms. Note it [ memory or paper ].
Next take the + probe to one of the pup switch connections - note it.
Go to the other one - note it.
Once again each should read about half ohmage.
If either read full ohmage for that pup, it's not connecting at the switch.
If any of these read zero , you have a short to ground.
If so look for stray solder going from ground to a switch connection.
Switch it to one of the pup by itself positions.
If switched to either pup you should get a full ohmage reading off both pup terminals ,relevant to the pup connected.
if either pup switch connection reads nothing you have no connection to the pup [ maybe dead ]
If it doesn't respond like this , you've got something wired wrongly.
Cleaning the blades and centre ball of the switch with contact cleaner or similar might help if there appears to be no connections happening within the switch.There should be no play amongst these in centre position.
Connect your MM ground to ground some where other than the switch, try and connect it so you don't have to hold it.
Set your MM to the X 1k range and set it to zero [ by holding the + probe to the - probe or ground some where ] and adjust the needle to zero ]
Put the + probe to the signal out of the switch.
If it was working properly it would read aprox half the the geater value of the two pups -assuming their ohmages are close to each other , + or - a few Kohms. Note it [ memory or paper ].
Next take the + probe to one of the pup switch connections - note it.
Go to the other one - note it.
Once again each should read about half ohmage.
If either read full ohmage for that pup, it's not connecting at the switch.
If any of these read zero , you have a short to ground.
If so look for stray solder going from ground to a switch connection.
Switch it to one of the pup by itself positions.
If switched to either pup you should get a full ohmage reading off both pup terminals ,relevant to the pup connected.
if either pup switch connection reads nothing you have no connection to the pup [ maybe dead ]
If it doesn't respond like this , you've got something wired wrongly.
Cleaning the blades and centre ball of the switch with contact cleaner or similar might help if there appears to be no connections happening within the switch.There should be no play amongst these in centre position.