Variable Resisters, Light-Emitting Diodes, And Check Pins By Pcb - Canon GP335 Service Manual

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CHAPTER 14 TROUBLESHOOTING

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

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.

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

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