Agilent Technologies M1205A V24, Руководство по обслуживанию, Страница: 99 / 358

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Troubleshooting Checklists
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When first troubleshooting the instrument, check for obvious problems by answering basic
questions such as:
If it is a battery model (V24CT/V26CT), are batteries installed?
Power switch is turned on?
AC power cord connected to instrument and plugged into AC wall outlet?
Circuit breakers are working properly in circuit breaker panel and power is available at
wall outlet?
Cable connecting the rack to the mainframe inserted properly?
SDN cable is properly connected to back of instrument?
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You can isolate many problems by observing several indicators on the instrument before you
are required to open the instrument. The following sequence of steps will identify these key
indicators when you begin to troubleshoot the instrument.
When power is applied to the instrument and the power switch is on, observe the following:
The backlight tube lights the Flat Panel display.
___ Indicates AC power is present.
If battery model, battery charge indicators on or flashing.
___ Indicates batteries are present and capacity of batteries.
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If no battery indicators lights are present, see “Battery Problems” on page 14.
Error messages appear on the screen.
___Error messages indicate either software or hardware fault has occurred. See Error Codes
in this chapter for details.
Contrast (Model V24) or Brightness (Model V24C/V26C/V24CT/V26CT) adjusted
properly. Try an initial setting about mid-rotation of the adjustment knob.