Magnacoustics Inc™ © 2012 1-800-637-2282 REV-S 17 |
Genesis ULTRA Installation and Connections - continued
32: Connect power cord from Stereo to AC 100-120V / AC receptacle located at operators’
console. GE sites us power from the GOC, Hitachi Sites us 100V system power.
33: Connect the plug side of “CB8” to AC 100-120V / AC receptacle located at operators’
console. GE sites us power from the GOC, Hitachi Sites us 100V system power.
34: Look at the front panel of the Genesis and ensure the all-8 red LED’s are lit under Circuit A
Power and Circuit B Power. If not, unplug the AC power cords and contact Magnacoustics
for assistance.
35: Press the green Power Button on the TCU a self-test will complete and the system should
power up in Tuner mode. (It may be necessary to adjust the FM antenna to get better
reception. Please keep in mind that if the MRI is located in the basement or if most of the
transmitting Radio stations are separated by the Scan Room RF Shielding, some form of
auxiliary or external antenna might be required.
36: After making sure the Stereo is playing ok (with Tuner, iPod or CD selected). Depress the
Green VOL NORM button and go into the Scan Room to ensure there is music playing
from the Headsets. (If you have help depress the Green Mic button speak into the
supplied Mic (make sure the Mic mute switch is off) to ensure intercom operation.
Auto Gain Calibration Procedure
37: In order to calibrate the Microprocessor for AUTO GAIN Function it will be necessary to
program the Ambient and Full Scan SPL levels, the please follow this procedure;
a. Depress the Blue PROG MODE button once.
b. Depress the MUSIC VOL- button to toggle down till 11. Ambient MIC Set is highlighted.
c. Depress the INPUT/ENTER button once and then again allowing the Auto Gain Mic to
capture the SPL in the room with the scanner idle.
d. Depress the MUSIC VOL- once to highlight 12. SCAN MIC Level Set depress the
INPUT/ENTER once.
e. Set up a Phantom and start the Scanner for and average scan (Full Scan Level).
f. Depress the INPUT/ENTER one more time to capture the SPL in the room with the
scanner active.
g. Depress the Blue PROG MODE once (which will store the two extremes) and let the
Microprocessor calculate how much Auto Gain in necessary.
EXTERNAL INTERCONNECT CAUTION: Because we use the Scan Room Shielding as our
ground reference, any auxiliary connections to the stereo that are at a different ground potential
may also cause system damage, interference in the scanner and a 60 cycle hum from the
speakers or patient headset. Do not connect any external Antenna or Audio input to the stereo
without the proper isolation.
a. Radio Shack Ground Loop Isolator Catalog #: 270-054 with the proper phono to 3.5mm
stereo adapter and Radio Shack Catalog # 274-883 or appropriate adapter must be used.
b. A 75 to 300 ohm adapter in series with the any external antenna source must be used with
one wire only.
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