Studio Technologies 50 2000 - Manual (Page 16)

Issue 4, July 2000 Model 50/51 User Guide
Page 16 Studio Technologies, Inc.
Note: If you require a longer cable, be
certain to buy a MIDI cable that has all 5
pins wired. If they aren’t all connected, the
Model 51 will not operate. This is because
the Model 50 powers the Model 51 with
the pins that aren’t used for MIDI data.
For best performance, the cable that
connects the Model 50 with the Model 51
should be limited to 50 feet (15.3m).
Should you need to exceed this length,
refer to the Technical Notes section
of this guide for details on the cable
requirements.
For more information on MIDI, and using
controllers other than the Model 51,
please refer to Appendix A.
Remote Control Inputs
The Model 51 allows the connection
of two external switches or contact clo-
sures. Refer to the Advanced Installation
Topics section of this guide for details.
AC Mains Power
The Model 50 is internally configured to
operate from either 100, 120, or 220/240V,
50/60Hz. In most cases, units shipped to
North America are factory selected for
120V operation. Units bound for Japan are
selected for 100V, while our friends “down
under” and in Europe receive units set for
220/240V. Before connecting the Model 50
to mains power, check that it is configured
to match the local mains voltage. Look on
the back panel, adjacent to the power
entry connector, for the configured
voltage(s). Note than an incorrect configu-
ration could seriously damage the unit.
Should it be necessary to change the
unit’s operating voltage it must be
performed only at the factory or by an
authorized service technician.
The Model 50 uses an IEC standard con-
nector to mate with the AC mains cord.
The wire colors in the AC mains cord
should conform to the internationally
recognized CEE color code and must
be wired accordingly:
Connection
Wire Color
Neutral (N) Light Blue
Line (L) Brown
Protective Earth (E) Green/Yellow
Safety Warning: The Model 50 does
not contain an AC mains disconnect
switch. As such the mains cord plug
serves as the disconnection device.
Safety consideration requires that
the plug and associated outlet be
easily accessible to allow rapid discon-
nection of mains power should it prove
necessary.
As soon as mains power is applied, the
Model 50’s power present LED will light.
The Model 51 will go through its power-up
sequence lighting each LED in a rapid
sequence. The power present LEDs on
the talent amplifiers will also light.
The two Over Current LEDs located on
the front panel of the Model 50 should not
be lit. If either or both are flashing, imme-
diately refer to the Troubleshooting sec-
tion of this guide. If everything appears to
be functioning properly you are now ready
to configure the system.