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88
22
Switching-off the Termination of the Word Clock Input
CAUTION! Disconnect the unit from the mains before opening!
Remount the aluminium cover thoroughly before you attempt to operate
the unit!
When MC-7 is shipped, the BNC-based Word Clock input connector is
terminated internally with 75
Ω
. Therefore, one jumper is put on two pins
- Position 2 - of the 3-pin socket JP1.
When moving the jumper from position 2 to position 1, the input termi-
nation will be switched-off. Therefore, the MC-7 must be connected in a
chain, in which a device with terminated input follows. Otherwise you need
to use a BNC-T piece in combination with a 75
Ω
BNC resistor for terminat-
ing the MC-7’s input.
JP1
Jumper:
1
2
Free Pin:
Jumper Position 2
= Termination
For additional information regarding this issue, please refer to page 11.
JP1
1
2
Jumper Position 1
= no Terminaltion
Word Clock Termination
Word Clock
Input
Termination
3-pin socket
JP1
S/P-DIF
Inputs
MC-7
Mainboard
PCB
