Main Controller Pcb; Variable Resistors (Vr), Light-Emitting Diodes (Led), And Check Pins By Pcb - Canon ImageRunner iR8500 Series Service Manual

Do not touch the VRs and check pins not discussed herein. They are exclusively for use at the factory, and require special tools and high precision.

15.3.9.2 Variable Resistors (VR), Light-Emitting Diodes (LED), and Check Pins by PCB

/ iR85+ / iR8070
Of the variable VRs, LEDs, and switches used in the machine, those needed when servicing in the field are discussed.
1. Some LEDs emit dim light even when 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
:
Do not touch the VRs and check pins not discussed herein. They are exclusively for use at the factory, and require special tools and high precision.

15.3.9.3 Main Controller PCB

iR105i/iR105+ / iR9070 / iR85+ / iR8070
15.3.9.4 Main Controller PCB
iR7200
J1006
J1027
J3000
LED1003
J3001
J1021
J1010
LED
1004
BAT
LED1008
1001
J1015
J1023
J1024
J1022
J1060
J1062
F-15-45
J1004
J1003
J1017
J1028
J1008
LED1006
J1013
J1061
J1026
J1014
J1018
Chapter 15
0008-9409
0007-1027
0008-9410
15-59