Technical data

I/O Module Re:source
5
Phono input
A special feature of the M51s
I/O module is the ability to
configure AUX-1 as a phono
input.
By setting DIP switches on the
board, the AUX-1 input can be
configured to meet the
requirements of the phono play-
back system. There are three
options:
AUX-1 Æ Line input
AUX-1 Æ MM Phono
AUX-1 Æ MC Phono
It is best to set the switches
before installing the card in the
M51. If the card is already
installed, you should proceed as
follows:
Important
Before starting work, switch the
M51
off and remove the power
plug from the power socket.
Remove the two screws with
the TORX screwdriver supplied
and screw one of the Torx
screws into the threaded hole
on the top right of the I/O card.
The I/O module releases itself
from the M51 as you do this
and can then be removed.
Note: Phono earth
There is a knurled screw in the
accessories kit supplied with the
M51. If you are connecting a
record deck, this screw should
be used to replace the lower of
the two screws on the I/O
module.
The turntable system can now
be earthed through this knurled
screw to the housing of the M51
which ensures hum-free vinyl
enjoyment.