56
HPS10 PersonalScope
TM
The screen remains blank or there is no
signal :
• No power supply
• Batteries are discharged
• Contrast adjustment is incorrect
• Press RESET for at least 10 seconds
REMARK: Temporarily remove both batteries
and adapter in case RESET is not functioning.
RMS readout is incorrect :
• Make sure that at least 1 and preferably even 2
periods are displayed.
• The batteries are discharged.
No signal on the oscilloscope display :
• Time/div setting is in the wrong position. Try
1ms or choose auto-setup mode.
• The unit is in the Hold position
• Trigger function is set in the “once” position
• The programmed trigger level is not reached
(choose “run” mode)
• Y position is wrong
• The input signal is too high, change the volt/div.
setting or choose auto-setup.
Incorrect frequency readout:
• An incorrect time/div. setting has been chosen.
(start at 0,2µs/div)
Voltage readout does not correspond with the
actual value :
• The measuring probe is in the X10 position
• The batteries are discharged
• The zero refrence is not set correctly for DC
measurements.
TROUBLESHOOTING
Troubleshooting
HPS10_man.pub
page 56
Wednesday, April 03, 2002 09:22
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