Sindoh N700 - Manual (Page 291)

9-
7
Maintenance and Troubleshooting
9
3
Press the Hook (①) on the left and remove the old PCU (②):
Caution
- Keep the used-up PCU in the package box since it will be collected by your Service Center.
4
Take new PCU out of a box and remove the orange tape (①).
5
Using the enclosed stand (①), tilt the PCU as shown in the picture below(②).