MOTU UltraLite-mk4, Руководство пользователя

Страница: 89 / 94

APPENDIX
89
E
Auto-on Mode
From the factory, the UltraLite-mk4 must be
manually powered on by pushing and holding the
PHONES knob on the front panel (Figure 6-2 on
page 43).
However, there may be situations where you want
the unit to power on automatically as soon as
power is introduced. For this situation, the
UltraLite-mk4 circuit board provides a jumper to
put the unit into
Auto-on mode. In Auto-on mode,
the UltraLite-mk4 powers on automatically, as
soon as it receives power. No manual intervention
is required.
CHANGING THE AUTO-ON JUMPER
To access the Auto-on jumper:
1
Switch off the UltraLite-mk4 and unplug the
unit.
☛
WARNING: be absolutely sure to unplug the
unit before proceeding! Risk of electric shock and
serious injury could result otherwise.
2 Carefully remove the two screws on the top of
the unit.
3 Carefully remove the top cover of the unit.
4
Find the Auto-on jumper (Figure 9-29), which is
located along the right-hand side of the circuit
board (when looking at the unit from the front).
5 Move the jumper to pins 1-2, as shown in
Figure 9-30.
6
Carefully replace the top cover of the unit, with
the MOTU logo facing the front of the unit , taking
care to make sure that the top edges of the front and
rear faceplates fit into the grooves on the underside
of the top cover.
7 Secure the top cover with the two screws.
☛
Be sure to fully reinstall the cover as described
above in steps 6 and 7 before attempting to power
on the unit after this procedure.
8 Plug in the unit to confirm that it powers on
immediately, as soon as it receives power.
Figure 9-29: Normal power-on mode (jumper is in position 2-3).
Figure 9-30: Move the jumper to position 1-2 for Auto-on mode.