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7
No Stroke Rate or Intermittent/Incorrect Reading
Is there a problem with the unit?
When there is no reading or there are irregular readings, the problem usually lies
with the sensor, not the unit itself. To test the unit:
• Turn the unit on; clear the memory and place in ready mode.
• Using a bent paperclip (unfolded into a “U” shape) repeatedly poke into the two
exterior holes of the CB plug (“A” & “D” sockets of the P5).
• The stroke rate should update every other poke. If this happens, the Cox-Box
is functioning properly and the problem exists with the rate sensor in the
wiring harness. Order a replacement rate sensor and install it according to the
directions supplied.
• If the rate does not update during this test, check the sockets to confi rm that
they are the same height within the plug and have not been pushed into the
plug. If the sockets have become recessed, gently use a pair of needle-nose
pliers to work the socket out to the same level as the other sockets.
• Use the Socket Maintenance Kit (NK Part No. 0242) to clean any imbedded dirt or debris from the sockets and
inject a small amount of Nyogel into the sockets to prevent corrosion and ensure good electrical contact.
• If the stroke updates, but the timer does not reset, clear the display..
Is the wiring intact?
Check the wiring for pin alignment and cuts or nicks. Check the sensor and seat magnet placement for proper
positioning and security.
E
C
B
E
C
C
C
C
C
C
B
B
B
D
A
No Audio/Intermittent Audio/Static
Is the wiring clean of cuts or nicks?
• Cuts or nicks in the wiring are the most frequent causes of audio problems. Be sure that all of the connectors
(pins, sockets, plugs, receptacles) are not damaged and are positioned properly.
Is the microphone working properly?
• The microphone may be the cause of failure. Test the system with a microphone you know is good. Note: A
damaged microphone often causes static.
Are the connectors (pins, sockets, plugs, receptacles) properly positioned?
•
See
installation.
Are the speakers working properly?
• Be sure all of the speakers are plugged in properly and are in working order (replace one at a time with a
known good speaker to test). If you are getting a loud squealing noise, try pointing the speakers away from the
coxswain to minimize feedback.
