Canon NP6218 F. Variable Resistors VR and Check Pins by PCB, DC controller PCB, 10-92

CHAPTER 10 TROUBLESHOOTING

F. Variable Resistors (VR) and Check Pins by PCB

Of all the VRs and check pins found in the copier, those that are needed in the field are discussed.

Caution:

Do not touch the VRs and check pins that are not discussed herein; they are for factory adjustment only and require special tools and instruments and must be adjusted with high precision.

1. DC controller PCB

7 J307 6 10 J308 1 12 J304 1 1 J305 6

3	J311 1	2	J309		20
										J301
	11		J303	1	15	J302		1	1		6
						5	J318	1

	6				VR391
			1	4	1		2
	J306
				J324		J356
	15		8
1	3	1
	J312		J322

	1	J310	15 11			J313	1		J320		J321
								1	3	1	4
B10	J319	B1				J351	1		J353		7
			1
			2
					5		1
				SW303
A1		A10
									SW302

VR302

VR301

1 2

J316 1 J315 7J317 1 1 J314 12

Figure 10-606

10-92 COPYRIGHT © 1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)