Rockwell Automation 1788 NetLinx Media Checker Users Manual - Manual (Page 37)

Maintenance 37
1788-UM002A-US-P – April 2000
Table 15. Troubleshooting the MediaChecker
Symptom 1: Display goes blank.
Action Result Explanation
Display is active The Battery Save feature turned the MediaChecker
off.* 1. Turn the rotary switch to OFF, wait 5 seconds and turn
the switch to TEST.
Display still blank Go to step 2.
Display is active Batteries were too low to run the MediaChecker. 2. Replace the batteries (see “Replacing Batteries” on
page 36).
Display still blank Go to step 3.
3. Return the MediaChecker for repair. See “Returning the
MediaChecker for Repair” on page 39.
Problem appears to be a MediaChecker
malfunction.
Symptom 2: The MediaChecker seems to be measuring incorrectly.
Self-test fails Internal circuitry is defective. Go to step 3. 1. Perform a self-test on the MediaChecker. See
“Performing a Self-Test” on page 38.
Self-test passes Go to step 2.
2. Calibrate the MediaChecker as described on page 10. Calibration not effective Go to step 3.
3. Return the MediaChecker for repair. See “Returning the
MediaChecker for repair” on page 39.
Problem appears to be a MediaChecker
malfunction.
* To disable Battery Save, turn the rotary switch to OFF, then press and hold
E
while turning the rotary switch to TEST.