Canon PC980 Service Manual - Page 267

CHAPTER 11 TROUBLESHOOTING Is the power 1 plug connected to the NO power outlet? YES Connect the plug. 2 Are the front door and the delivery cover NO Close the door closed firmly? or the cover. YES 3 Is the rated voltage present at the NO Advise the user that the problem power source? is not the copier's. YES Rest omitted. • Often, you will find the following instructions when checking the voltage using a meter: "measure the voltage between J109-1 (+) and -2 (-) on the DC controller PCB." The symbol "+" indicates the terminal to which you are expected to connect the positive probe of the meter and "-," the negative probe. example: J109-1 (+) ..... Connect the positive probe. J109-2 (-) ...... Connect the negative probe. 11-2 COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)