Keithley 3930A Operator's Manual page 115

Service Form
Model No.
Serial No.
Name and Telephone No.
Company
List all control settings, describe problem and check boxes that apply to problem.
Date
CI Intermittent
0 IEEE failure
0 Front panel operational
Display or output (check on(r)
0 Drifts
0 Unstable
0 Overload
0 Calibration only
0 Data Nquircd
u Analog output follows display a Particular range or function bad; specify
u Obvious problem on power-up 0 Batteries and fuses arc OK
0 All ranges or functions arc bad 3 Checked all cables
0 Unable to zero
0 Will not read applied input
0 Certificate of calibration required
(attach any additional she& as necessary)
Show a block diagram of yo'ur measurement system including all instruments connected (whether power is turned on or not).
Also, describe signal source.
Where is the measurement tseing performed? (factory, controlled laboratory, out-of-doors, etc.)
What power line voltage is used?
Ambient temperature?
Relative humidity? ~
Other?
Any additional information (If special modifications have been made by the user, please describe.)