Check the video below to learn how to test the voltage output(s) (+5 VDC, +15 VDC, -15 VDC, and +24 VDC) of the Beckman LS6500 power supply module.

This video demonstrates the AC and DC voltage checks on a new style power supply module outside the LS6500 instrument. The same process applies when measuring voltage with the new or old style power supply module mounted inside the LS6500. If the LEDs on the relay board piggybacked on the power supply module (not shown in this video) are all OFF, it is a clear indication that the power supply module is dead.