Asymtek C702, Student Manual

Page: 70 / 82

Level 2 Maintenance Training, Century Series 4-4 P/N 73-0028-00 Revision A
Level 2 Module 4
STUDENT GUIDE
LESSON 2 Troubleshooting, CONTINUED
7. Tips
•
Start with the simplest things to verify first and work towards the more
complex.
•
It’s sometimes easier to try two or three things at once, if it will save time,
and then isolate further if you succeed at correcting the problem with those
two or three changes.
For example: if the vision fails, and you suspect it is
a vision card, you can swap the entire computer instead of just one card at
a time.
•
Use common sense, and remember the recent history of the equipment.
Was there a software upgrade just performed? Was there a PM performed
on the needle sensor recently? Has there been an upgrade recently
performed, since last it worked?