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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
Figure 10-606
10-92
COPYRIGHT
©
1997 CANON INC. CANON NP6218 REV. 0 MAY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
3 J311 1 2 J309 20 1 J310 15
11 J303 1
15 J306 6
7 J307 6 10 J308 1 12 J304 1 1 J305 6
1 J314 121 J315 7J316
12
J317 1
11
J322
J312
83
15 J302 1
5 J318 1
1
J356
21
J324
4
B10 J319 B1
A1 A10
1
J301
6
11 J313 1
1
J320
3
SW303
5
1
2
J351
1
J353
SW302
17
1
J321
4
VR302
VR301
VR391