Canon imageRUNNER ADVANCE C2020, Руководство по обслуживанию

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CHAPTER 2 STANDARDS AND ADJUSTMENTS
2-20P
6.2 When Replacing the DC Controller PCB
1) Open the printer unit front cover.
2) Check to make sure that all items identified by “D” on the service label attached to the
front cover carry values; otherwise, start service mode, and copy the missing values.
3) Turn off the main power switch, and disconnect the power plug.
4) Remove the problem DC controller PCB.
5) Mount the new DC controller PCB.
6) Detach the DIMM ROM from the problem DC controller PCB, and mount it to the new
DC controller PCB.
F02-602-01 (top view of the board)
If replaced, the version of the DIM ROM may prove to be incompatible; be
sure to upgrade the DIM ROM of the reader controller PCB, DC controller
PCB, and system controller PCB.
J111 J110 J109 J108
J107
J105 J104
1 7
14 8
1 23
2 24
1 6
12 7
1 7
J127
1 7
J129
1 5
J135
J134 J133
J132
2 6
1 5
14 8
1 6
12 7
1 8 1 10
5 1
6 2
15 1
16 2
19 1
20 2
11 1
10 2
13 1
12 2
1 6 7 1
6 2
5 1
6 2
7 1
8 2
9 1
8 2
1 8
1 7 1 5
1 3 1 3
1 2
J103 J102
J106
J119
J124
J125
J130
J123
J122 J121 J120
J101
J117 J116 J115 J114 J113
J112
J118
1 2
VR4
J126
VR1
A2 A1 B19 B20
A20 A19
B1 B2
B2
B1
A2
A1 B34
B33
A34
A33
J128
B2
B1
A2
A1 B34
B33
A34
A33
A2
A1
B2
B1
B39 B40 A39 A40
B1 B2 A1 A2
1 2 3 4 5 6 7 8
SW1
1 72
A16
A15
B16
B15
A2
A1
B19
B20 A20
A19
B1
B2
J131
A2
A1
B19
B20 A20
A19
B1
B2
LED3
ON
LED1
LED2
DIMM ROM