Question: Will the P6516 Logic Probe work on my MSO4000B, MDO4000B and MDO4000C Series oscilloscopes?
Answer: The P6516 logic probe was only used with the original MSO4000 series. For the subsequent MSO4000B, MDO4000B and MDO4000C Series oscilloscopes, the P6516 was replaced by the P6616 logic probe.
The P6616 logic probe will not work on the original MSO4000 series oscilloscopes.