Gw-instek APS-1102 User Manual Manuel d'utilisateur Page 236

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7.3 When Fault Is Suspected
APS-1102 Programmable AC/DC Power Source 7-14
Table 7-9. When Fault Is Suspected (Problem when Switching Power on/off)
Symptom Possible Cause Required Action, etc.
Does not operate after
turning on power
switch.
Not connected to a commercial
power source.
Make sure the power cord is firmly inserted into
the outlet and the inlet (on rear panel of the
APS-1102).
Power source being used is
outside the rated range.
Use a power source that is within the rated range.
Internal fuse is broken. Contact Good Will or its representative.
Does not stop
immediately after
turning off power
switch.
This is not a failure.
The device will stop
automatically after the internal
voltage has reached a safe level.
Please wait. It will stop in approximately five
seconds.
LCD is blank.
(Fan is operating.)
LCD has low contrast setting.
Increase the LCD contrast setting.
To adjust the LCD contrast when the screen
contents cannot be seen, press the ENTER key
and CANCEL key at the same time. This sets the
digit cursor to the 10’s column.
See “5.6.3 LCD contrast adjustment.
Table 7-10. When Fault Is Suspected (Problem During Key Operation)
Symptom Possible Cause Required Action, etc.
Panel operation does
not work.
Keylock has been set to on. Turn off the keylock.
See “5.6.1 Keylock.
Key or MODIFY dial has been
degraded.
Contact Good Will or its representative for
repairs.
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