Variable Resistors (Vr), Light-Emitting Diodes, And Check Pins By Pcb - Canon C2050 Service Handbook

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
8 Variable Resistors (VR), Light-Emitting Diodes, and
Check Pins by PCB
Of the variable resistors (VR), light-emitting diodes (LED), and check pins used in the
machine, those needed in the field are discussed:
Those VRs and check pins not discussed herein are for use at the factory,
requiring special tools and high accuracy. Do not touch them in the field.
Some LEDs hold leakage current and emit dim light even when off. This is
a normal condition and must be kept in mind.
···VRs that may be used into the field.
···VRs that must not be used in the field.
3-18P