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Troubleshooting
66
Aps230 ADVANCED PersonalScope
TROUBLESHOOTING
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 effective.
RMS readout is incorrect :
• Make sure that at least 1 (preferably 2) pe-
riods 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
TM
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