CHAPTER 11 TROUBLESHOOTING
COPYRIGHT © 1999 CANON INC. CANON NP6512/6612/7120/7130/7130F REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON)
11-86
F.
Variable Resistors (VR) and Check Pins by PCB
Of the variable resistors (VR) and check pins, those needed in the field are discussed herein.
Those not found in the discussions are for the factory only, requiring special tools and adjustment
to an extremely accuracy. Do not touch them in the field.
J131
J101
J130
J102
J111
J122
J201
J110
J108
J119
J132
J106
J105
J104
J103
J109
J121
VR103
VR102
2
3
1
2
1
1
4
1
1
9
1
7
6
1
1
11 1 2 1
6 1
5
1
2
1
3
1
6
2
6
1
2
1
20
1
9
J107
2
19
5
1
J201
J207
2
1
2
1
2
1
FU102
J910
VR001
J205
1
4
J202
1
6
J213
J212
J209
J302
VR301
VR801
J953
1
3
J954
J951
J203
J204
1
1
9 1
7
2
1
3
VR952
VR951
Figure 11-607
Figure 11-606
2.
Composite Power Supply PCB
1.
DC Controller PCB
Caution:
VRs that may be used in the field ................
VRs that must not be used in the field .........
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