Sdram - Canon iR4570 Series Service Manual

Chapter 4
F-4-37
Points to Note When Replacing the Main Controller
PCB
Remove the following components of the detached
main controller PCB. Thereafter, be sure to mount
them to the new main controller PCB.
[1] Boot ROM
[2] Hard disk

[3] SDRAM

[4] FRAM
F-4-38
4-34
4.7.2 SDRAM
4.7.2.1 Removing the Face
Cover
iR2270 / iR2870 / iR3570 / iR4570 / iR3530
1) Remove the 4 screws [1].
2) Loosen the 2 screws [2].
[1]
[1]
[2]
F-4-39
3) Pull off the face cover [1] in upward direction.
[1]
F-4-40
4.7.2.2 Removing the SDRAM
iR2270 / iR2870 / iR3570 / iR4570 / iR3530
1) Release the 2 locking levers [1], and detach the
SDRAM [2].
0007-6411
0007-6412