GW Instek GSP-830 User Manual - Manual (Page 22)

GSP-830 User Manual
22
Error Check
This section assumes that the GSP-830 is already powered up (page20).
1. Check system
error Check for error messages at the bottom of the display,
next to the command window.
Center : 1.5GHz (EXT Unlock)
EXT
Unlock
Contact the service center if any of the following
messages remains in the display.
Amp
Uncal
•
Inappropriate RBW or VBW is selected.
•
Frequency is less than 15MHz and
amplitude is less than −30dBm.
EXT
Unlock
External reference input is not working
properly.
LO1
Unlock
Local oscillator 1 is not working properly.
LO3
Unlock
Local oscillator 3 is not working properly.
Med
Unlock
± 1ppm stability signal is not working
properly. Appears only when the optional
±
1ppm stability module is installed.
Ref
Unlock
Internal reference signal is not working
properly.
2. Check self test
result View the GSP-830’s self-diagnosis test result. Press the
System key→F6 (More) →F2 (Self Test).
Self Test... F 2 More... F 6 System
The test automatically runs at each power-up. The
underline shows the result, pass or fail. Contact the
service center if any of the items fails.
GPIB
Pass Fail
F 1
GPIB module connectivity
(available only when installed)
Flash
Pass Fail
F 2
Internal Flash memory for storing
the system code/data