The light bulb leads are crimped inside the switch, and the crimping has probably oxidized. Crimp connections often fail from oxide.
Smoke machine vapors on stage will cause all kinds of corrosion inside the amp....
There are different switches, with different light configurations.
The best thing to do is call Kevin and get the exact part number for the replacement.
Then order the part from a Marshall dealer.
Other than that, the leads slide on to the switch (faston connectors). Just make sure the same wire goes back on the same terminal.
Kevin (
Kdog) Drury Marshall USA Service 1000 Corporate Grove Dr. Buffalo Grove, IL 60089 800-877-6863
kevin.drury@USMusicCorp.com
Or Call the Marshall factory in Milton Keynes
.
Sometimes they will fix the problem for you while you are waiting.
But you will need to drive over to Milton Keynes
.
+44(0)1908 375411