Canon Color iR C3480 Service Manual page 115

4) Detach the blanking plate [1]. (Do not use the detached blanking plate.)
- 2 screws [2]
5) Attach the board support plate [2] to the voice operation board [1].
- 2 screws (TP; M3X6) [3]
- 2 washers [4]
- 2 hex screws [5]
Check the Slide Switch SW1 on the Voice Operation Board
The slide switch SW1 on the voice operation board is mounted to switch between in accordance with the transfer speed of PCI bus.
If the position of the switch does not match the transfer speed, the voice is not correctly played such as the interruption.
If you move the switch by mistake, be sure to return it to the correct position. In this machine, the switch should be positioned at 66MHz.
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Chapter 2
2-33