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10.5 Troubleshooting
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The screen and
indicators do not
light when powered
on.
・
Is the AC Adapter correctly connected?
・
Are the batteries correctly inserted?
・
Are the batteries near the end of their useful
life?
・
When the battery capacity is reduced, the
power is automatically turned off. Before
turning on the power again, turn the power
off first and leave the instrument for about
30 seconds.
・
Is the contrast too dark?
The normal screen
is not displayed
when turning the
power on.
Are the batteries near the end of their useful
life?
No waveform
appears on the
screen when the
START key is
pressed.
・
Is the "Pre-Trig wait." message displayed?
When recording before the trigger, until the
corresponding item interval has elapsed, a
trigger is not accepted.
・
Has the "Wait for trigger" message
appeared? Check the trigger settings.
・
Are all of the waveform display colors for
each channels switched off?
There is absolutely
no variation in the
recorded waveform.
・
Is the measurement range setting
appropriate?
・
Is the input cord correctly connected?
・
Has a low pass filter been set?
The printed
recording is very
faint or non-existent.
・
Is the recording paper back to front?
・
Are you using the correct recording paper?
・
Is there enough power left in the battery
pack?
Recording lines are
dense or blurred.
Input signal contains ripple components. Make
suitable filter settings.
The screen does not
appear and the
green LED stays on
or blinks.
The backlight has been switched off by the
LCD saver function. Press any key to switch
on the backlight.
10.5 Troubleshooting
If the instrument does not seem to operate normally, check
the following points before requesting service.
Summary of Contents for 8715-01
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