Troubleshooting - Sony LT20 Serie Anleitung

11. Troubleshooting

When the unit does not work properly, check the following before calling Sony Manufacturing Systems Corporation
Representative for service
The power cannot
be turned on.
is displayed (Alarm)
Channel display is
(Alarm)
Sixth digit is "F"
No counting
• Turn off the power and turn it on 1 minute later.
• Check the connection and continuity of the power line.
• Check for the proper range of power voltage.
• Perform resetting operation.
• Has the measuring probe's cable been disconnected?
• Is there a large amount of noise?
• First carry out the reset procedure.
• Was the measuring probe exchanged with the power on?
• Is the measuring unit's connector locked?
• Is the measuring probe's cable disconnected?
• Has the maximum response speed for the measuring probe been exceeded?
• Connect a correctly functioning measuring probe and reset.
• Is the preset value too large (Overflow)?
• Turn off the power switch and turn it on 5 seconds later.
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