QSC WP-000972-TS | Replacement Knob Assembly for RMX Amplifiers

a client brought in the poweramp be serviced it is a QSC rmx 1450 is a power amplifier solid-state the specs basically are that you can look it up in the manual in bridged mono mode its 1400 watts with a 4 ohm load in bridge mono mode 900 watts with an 8 ohm load where the client is operating this unit or if you operate in stereo mode with an 8 ohm load for each side there'll be 280 watts 40 pounds I'm going to open up the unit for the first time and show you how to repair and replace the worn potentiometers I'm going to use to show you two methods to test for worn pots one uses a fluke volvo meter the other uses an oscilloscope both use a signal generator as part of the test I'll post that schematic later on in this video there are a couple screws on the left and the right and four at the top that need to be removed we remove them probably the unit lid up from the back and what it show