Variable Resisters, Light-Emitting Diodes, And Check Pins By Pcb - Canon GP405 Service Handbook

CHAPTER 3 ARRANGEMENT AND FUNCTIONS OF ELECTRICAL PARTS
H. Variable Resisters, 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.
Caution:
1. Some LEDs emit dim light when they
are off because of leakage current.
This is a normal condition, and must
be kept in mind.
2. VRs that may be used in the field.
:
VRs that must not be used in the field.
:
3-18
Caution:
Those VRs and check pins not listed
in the tables are for factory use only,
requiring special tools and high
accuracy. Do not touch them in the
field.