Page 1
Instructions HDO Removable Hard Drive HDO oscilloscopes with the HDO4K-RHD and HDO6K-RHD options feature a removable hard drive mounted on the rear panel of the instrument. To insert or remove the drive: 1. Rotate the knob on the top cover of the drive mount counterclockwise to loosen it, then pull it out. Oscilloscope must be powered down prior to insertion or removal of drive.