Invivo Millennia 3155A, Руководство по обслуживанию

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4-1
CAUTION
The Millennia
®
3155MVS/3155A monitors contain a great number of Static Sensitive circuits.
Proper handling procedures must be followed when touching any Printed Circuit Board (PCB) as
static voltages usually present on clothing and personnel present great risk of damage to the
circuits.
All Service Procedures MUST be performed by Properly Grounded Personnel at
a Static Free Work Station .
SECTION 4
ADJUSTMENT PROCEDURES
4.0 ADJUSTMENT PROCEDURES
4.1 Introduction. The recommended calibration interval for the Millennia
®
3155MVS/3155A
monitors is one year. Anytime repairs are made, options are installed or the monitor fails the
Calibration Procedure, however, the monitor should be recalibrated.
When power to the monitor is removed, a warmup period of at least 15 minutes should elapse after
power is reapplied to the unit, prior to performing any of the calibration procedures provided in this
section.
When possible attach the test equipment to the applicable test points before restoring power to the
monitor.
4.2 Setup. Perform the following to prepare the Millennia
®
3155MVS/3155A monitor for
adjustment (See Figure 4-1).
a. Ensure that the Millennia
®
3155MVS/3155A monitor Power Switch on the front panel
is set to the OFF (
F
) position.
b. Remove all batteries from the unit.
c. Verify the rocker-type Line Switch on the
AS153
is initially set to the OFF (
F
) position.
d. Connect the AS153 AC Power Adapter to the Millennia
®
3155MVS/3155A monitor by
plugging the male DB-15 connector of power adapter cable assembly AC348 into the DC
POWER jack on the
AS153 , and the remaining female DB-15 receptacle into the 18-22
VDC INPUT jack on the rear panel of the monitor.
e. Ensure the Power Switch on the Variable Auto Transformer is initially set to the OFF
position and adjust the rotary dial to the nominal line voltage (below) corresponding to
the number displayed in the
AS153 voltage select window:
Transformer Nominal AC Line Voltage AS153 Voltage Select Switch
220 VAC 220 Vãc
117 VAC 120 Vãc
100 VAC 100 Vãc
f. Plug the AS153 AC line cord into the AS153 power receptacle and Variable Auto
Transformer power outlet.