11.1 Troubleshooting
148
If abnormal operation occurs, check the following items.
Before Returning for Repair
Symptom Check Items
The display does
not appear when
you turn the power
on.
• Is the power cord disconnected?
• Are connections made correctly?
• Is the battery pack installed correctly?
Verify that the power
cor
d is connected prop-
erly (p.30).
Verify that the battery
pack is
correctly installed
(p.26)
.
Keys do not work. • Is any key being held down?
• Is the key-lock state active?
(A message appears when a key is
pressed while key-lock is active.)
Verify key operation.
Cancel key-lock:
(Hold the cursor
keys for three seconds)
Power does not
turn on.
• A power protection component may
be damaged.
Customers should not at-
tempt to perform parts re-
placement and repair.
Contact your dealer or
Hioki representative for
service.
A waveform does
not appear when
you press the
START/STOP key.
• Is the "Waiting for pre-trigger" mes-
sage displayed?
• Is the "Waiting for trigger" message
displayed?
• Is the waveform display color selec-
tion box selected ( )?
When pre-triggering is
ena
bled, triggering is ig-
nored until the pre-trigger
por
tion o
f the waveform
has been acquired. Re-
cording starts when a
trigger occurs.
No changes occur
in the displayed
waveform.
• Is the measurement cable connected
correctly?
• Is the measurement range set prop-
erly?
Verify that the clamp sen-
sor or connection cable is
conn
ected cor
rectly
(p.31)
.
Data cannot be
saved to the re-
moval storage.
• Is the removal storage inserted prop-
erly?
• Is the removal storage formatted?
• Is the remaining capacity of the
rem
oval stor
age too low?
"Using a CF Card/USB
flash drive" (p.93)
If the cause is un-
known
• Try performing a system reset (p.125).
• All settings are returned to their factory defaults.
Appendix 5, "List of Default Settings" (p. A10)
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