User Manual
    GPT-9000/9000A Series User Manual 
162 
FAQ 
• 
The tester will not turn on. 
• 
The panel keys are not working. 
• 
When I press the START button the tester will not start testing? 
• 
The accuracy does not match the specification. 
The tester will not turn on. 
Ensure the power cord is connected. Ensure the line input is set to 
the correct line voltage. Check to make sure the fuse is not blown. 
See page 164. 
The panel keys are not working. 
Ensure the tester is not in remote mode, page 116.  
Ensure the tester is not in SIGNAL I/O or Remote Connect mode, 
page 102. 
When I press the START button the tester will not start 
testing? 
The tester must first be in the READY status before a test can be 
started. Ensure the tester displays READY before pressing the 
START button, page 64 (manual test), 90(automatic test). 
If “Double Action” is enabled, the START button must be pressed 
0.5 seconds after the STOP button is pressed, otherwise the tester 
will not start testing. 










