Variable Resistors (Vr), Light-Emitting Diodes (Led), And Check Pins By Pcb; Dc Controller Pcb - Canon NP6251 Service Manual

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CHAPTER 11 TROUBLESHOOTING

H. Variable Resistors (VR), Light-Emitting Diodes (LED), and

Check Pins by PCB

Of the VRs, LEDs, and check pins used in the machine, those needed to service the

machine in the field are discussed.

1.Some LEDs are dimly lit because of leakage current even when off; this is a

normal condition and should 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 discussed herein are for use at the factory, requiring

special tools and high precision. Do not touch them in the field.

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Figure 11-611

CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)

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