Control Box Symptoms
P/N 7010-0341 www.topconpositioning.com
9-7
Control Box Symptom 7
“System intermittently drives the cylinder all the way up or
down when tracking a mechanical ski.”
Probable Cause
Tracker is intermittently picking up signals from the ski
.
1. Verify string is at least 4 inches above the surface of the
ski. Ski will pull away from the paver and can get in
Tracker's Working Window if string is too close. Ski
will also tilt to one side when traveling through a super
elevation or slope transition.
2. For a multi-foot ski, make sure “foot spring pin” is not
within the sonic footprint as the ski surges back and
forth.
Control Box Symptom 8
“Control Box displays Error and a number from 1-4.”
Probable Cause
Defective Sonic Tracker or SAS cable.
1. Check SAS cable connections at each tracker.
2. Turn Control Box off and swap tracker showing the
error number (1-4) with another tracker on the SAS.
(Tracker number is on the cable at the tracker
connector). Turn Control Box on to reset SAS. If the
error number (1-4) has changed, the problem is the
tracker. If the error number remains the same, the
problem is the SAS cable.
3. If more than one error number is shown, check trackers
individually by plugging sonic trackers directly into the
single tracker coil cord to determine if trackers or SAS
cable is source of error.
4. The defective tracker or SAS cable should be repaired,
but SAS can still be operated without all four.
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