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Table A.1: Display Error Messages (Continued)
Display
Problem
Message
pan driver error
P A N
d R V
E R R
pan encoder error
P A N
E N C d
pan homing error
P A N
E R R
pan encoder posi-
P A N
tion does not
S T O P
match physical
position
fixture failed to
P R G M
upload within allot-
T I M E
ted time
sensor power error
S V C C
E R R
sensor time-out
S E N S
T O U T
litho wheel 1
S E N 1
sensor
E R R
litho wheel 2
S E N 2
sensor
E R R
Explanation
•
motor wire shorted to
ground
•
bad driver chip
•
encoder sensor is not
connected
•
encoder is not
functioning properly
•
loose pinion gear
•
loose motor cable
•
incorrect cabling to pan
input
•
bad sensor
•
bad motor
•
physical obstruction
•
encoder is out of
calibration
•
complete data was not
received
•
bad board
•
loose cable
•
fixture attempted to
correct pan/tilt
position(s) without
success
•
problem with litho
wheel 1 tab
•
problem with litho
wheel 1 motor
•
bad sensor 1
•
problem with litho
wheel 2 tab
•
problem with litho
wheel 2 motor
•
bad sensor 2
Appendix A Troubleshooting and Maintenance
Solution
•
refer to qualified
service personnel
•
connect encoder
•
refer to qualified
service personnel
•
run self-test and
refer to qualified
service personnel
•
remove obstruction
and home the fixture
•
refer to qualified
service personnel
•
try to upload again
•
refer to qualified
service personnel
•
refer to qualified
service personnel
•
remove the
obstruction and reset
the fixture
•
bad pan or tilt sensor
•
check to ensure tab
crosses sensor
•
test litho wheel
•
refer to qualified
service personnel
•
check to ensure tab
crosses sensor
•
test litho wheel
•
refer to qualified
service personnel
2
A-5
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Table of Contents
Troubleshooting
