Imagine Selenio X50, Installation And Operation Manual, Page: 132 / 136

Appendix C
Servicing
118
Changing Jumper Settings
The analog audio input on the X50 can be set to either 600

or Hi-Z impedance (see
Figure C-20 on page 118). There are eight jumpers for this purpose, located near the rear of
the main board inside the X50. (The default setting is Hi-Z .) The diagram on the circuit
board shows how to align the jumpers.
To access the jumpers, follow these steps:
1 Remove the X50 cover, as described on page 106, ensuring both power supplies are
disconnected.
2 Set the jumpers as required ( Figure C-20 ).
WARNING: You can receive an electric shock from exposed parts of the power
supplies. Ensure that you remove AC power from both power supplies before you
open the cover.
Figure C-20 Analog Audio Input Jumpers J14 to J21