PROBLEM:
Visible noise in one localized region

SOLUTION:
Attempt to resolve by:

1. Turn the probe 90 degrees. Does the noise follow accordingly to the change? If yes, your probe is damaged. If no, continue.
   
   
2. Try a brand new probe with directions in section 1 above. Does the noise follow accordingly to the change as it did above? If yes, the probe is damaged. If no, continue.
   
   
3. Remove the connector and visually observe the gold connections. Take an alcohol swab and thoroughly clean the connecting area as well as all external regions of the connector itself. Replace the cleansed connector into the system and attempt 1,2 above. Does the noise follow accordingly to the change as it did above in 1 and 2? If, yes, the probe is damaged. If no, continue.
   
   
4. Switch the SCSI cables with each other 1-32 to 33-64 and vice a versa. Does the problematic region move accordingly to the change? If yes, try replacing the SCSI cable with a brand new one. This should resolve the problem. If no, continue.
   
   
5. Replace the SCSI cables back into the original location and continue. Stimulate and seek for the stimulus artifact in the regions surrounding the problematic site (for ex. Problem electrode 14; stimulate in 5, 6, 7, 13, 14, 15, 21, 22, 23). If the problematic site does not produce a stimulus artifact, then the internal switch within the amplifier is damaged. However, if all of the stimulated sites produce a stimulus artifact within the surrounding regions, then the solution lies with a poor connection between the probe and the connector. Make sure that the connection is proper. If the problem continues, contact the MED64 technical service.