13.1 Trouble Shooting
217
Chapter 13 Maintenance and Service
13
Before returning for repair
Before Having the Instrument Repaired
Symptom Check Item, or Cause Remedy and Reference
The display does
not appe
ar when
you turn the power
on.
If powering the instrument with
the
AC a
dapter
• Are the power cord and
AC adapter properly con-
nected?
Verify that the power cord or AC
adapter is connected properly.
See: 2.5, "Supplying the Power" (p. 33)
If powering the instrument with
the battery
• Has the PW9002 Battery
Set (9459 Battery Pack)
been properly installed?
• Has the battery pack been
charged?
Verify that the battery pack has been
charged and installed.
See: "Installing (replacing) the Battery
Pack" (p. 24)
Keys do not work.
• Has the key lock been acti-
vated?
Press and hold the ESC key for at
least 3 seconds to cancel the key
lock.
Voltage or current
measur
ed values
are not being dis-
played.
• Are the voltage cords or
clamp sensors connected
improperly?
• Are the input channels and
display channels incor-
rect?
•
Has an appropriate current
range
been
selected?
Check the wirings and wiring settings.
See: 3.3, "Connecting the Voltage
Cords" (p. 47) to 3.8, "Verifying
Correct Wiring (Wiring Check)" (p.
56)
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