TM5-1260-206-34
Table 2-7. APPS Troubleshooting Procedures - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 2. Remove DAC bottom cover plate. Using an oscilloscope,
perform the following measurement.
Step 3.
Check continuity of OMS cables W101 and W105.
If good, refer to table 5-2, malfunction 3.
If bad, replace faulty cable.
X-AXIS ENCODER OUTPUT MISSING OR INCORRECT
6.
Remove DAC bottom cover plate. Using an oscilloscope,
Step 1.
perform the following measurements.
Rotate X-axis
Observe
Parallax adjust
If bad
Pin No.
TTL
do step 2.
Clockwise
G84
pulses
Counterclockwise
G82
Check continuity of OMS cables W101 and W105.
Step 2.
If bad, replace faulty cable.
If good, refer to table 3-2, malfunction 10.
DIC PUSHBUTTONS DO NOT WORK
7.
Using an oscilloscope, perform the
Remove DAC bottom cover plate.
following measurements:
2-26
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