Hioki ST5680, Instruction Manual, Page: 221 / 253

221
15
Maintenance and Service
15.1 Troubleshooting
If damage is suspected, read “Frequently Asked Questions” (p. 221) to remedy the issue. If the
issue cannot be resolved, contact your authorized Hioki distributor or reseller.
Frequently Asked Questions
General
Issue Cause Corrective action and reference page
Nothing is shown on the
screen when the instrument
is turned on.
The power cord is disconnected. Check that the power cord is connected
correctly.
See “2.2 Connecting the Power Cord”
(p. 24).
Keys are disabled. The instrument is in the key-lock
state.
Unlock the key lock.
See “8.8 Key Lock” (p. 115).
The communication interface
is used and the instrument is in
remote mode.
Set to local mode.
See “13.8 Control Using
Communications Commands” (p. 196).
When I pressed a key
onscreen, a different key was
operated.
Panel calibration has not been
performed.
Implement panel calibration.
See “Calibrating the touch screen”
(p. 145).
Measurement issues
Issue Cause Corrective action and reference page
A test cannot start even
when the START button is
pressed.
The STOP button is not pressed
before the START button is
pressed.
Two-step operation using the STOP
and START buttons is required to avoid
unnecessary output and allow a test to
be started safely.
See “4.15 Starting and Ending a Test”
(p. 58).
A STOP signal is left to be input
from the external I/O terminal.
A START signal has lower priority than
a STOP signal. Change the setting so
that the STOP signal is off at the start.
The STOP button is stuck in the
down position for some reason.
A voltage over the voltage limit
value is set.
Check the test voltage and voltage
limit value. A test cannot start if the test
voltage is set outside the voltage limit
value.
See “4.3 Setting the Limit Voltage
Value” (p. 40).
15 Maintenance and Service
Maintenance and Service
HIOKI ST5680A961-00