PCBs and Other Items
D017/D018/D019/D020/D084/D085 4-59 SM
Replacement
and
Adjustment
[C] Controller board unit ( x3)
Before touching the controller board, always touch a metal surface to discharge
any static that has accumulated on your hands.
2. Remove:
[A] Faceplate (
x3)
[B] Controller board (
x4)
Make sure that the thermal conductive sheet [C] is attached to the bracket after
replacement of this procedure.
3. Remove:
[A] Upper brace
[B] Lower brace
[C] NVRAM x2
4. Remove the NVRAMs from the old board and install them on the new board.