Canon PC980 Service Manual - Page 266

CHAPTER 11 TROUBLESHOOTING Guide to the Troubleshooting Procedure This chapter provides troubleshooting instructions in the form of tables prepared based on generally found flow charts. Study the following for an idea of how to use them: AC power is absent. Cause Power plug Covers Power source Step 1 2 3 4 Checks Is the power plug connected to the power outlet? Are the front door and delivery cover closed fully? Is the rated voltage found at the power outlet? Is the rated voltage present between J11 and -2? (J1 is found near the power cord mount.) YES/NO NO NO NO YES Action Connect the plug. Close the door or the cover. Inform the user that Go to step 6. (Rest omitted.) • To find out the cause (possible fault) of a specific problem, see the "Cause" column. If the problem is "AC power is absent," you may suspect that the power plug is disconnected, covers are not closed fully, or power is absent at the main source. • If you want to find out the checks to make or action to take, go through the steps: answer the questions under "Checks"; if yes, take the action shown. Otherwise, go to the next step and make the indicated checks. COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) 11-1