MACKIE SRS 1500 thumping

Chitown

Twobie

Join Date: Aug 2022

Posts: 2
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#1

MACKIE SRS 1500 thumping

08-15-2022, 09:14 PM

One of my Mackie SRS1500 makes thumping sounds periodically when it is turned on. Nothing plugged into any jacks. Any thoughts on what the problem could be? (other than "it's broke" that is) Thanks.
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The Dude

Supporting Member

Join Date: May 2010

Posts: 10247

Location: Sioux Falls, SD
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#2

08-15-2022, 10:54 PM

Schematic link:

https://elektrotanya.com/mackie_srs1.../download.html

"I took a photo of my ohm meter... It didn't help." Enzo 8/20/22
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