Error Message
Description/Remarks
Error 100
DVM Ground Offset Failed
Indicates a calibration-related problem. Do Not Attempt to Operate! Refer the
instrument to a qualified service technician.
Error 101
DVM Positive 10V Reference
Indicates either a calibration-related problem or a de10 Volt reference. Do
not Attempt to Operate! Refer the instrument to a qualified service technician.
Error 102
DVM Negative 10V Reference
Indicates either a calibration-related problem or a defective –10 Volt reference . Do
not Attempt to Operate! Refer the instrument to a qualified service technician.
Error 105
Power Supply Voltage(s) out
of Regulation
Indicates one or more of the voltages from the power supply are out of regulation.
Do Not Attempt to Operate! Refer the instrument to a qualified service technician.
Error 106
Power Supply not Locked
Indicates the power supply is not phase-locked to the 400 kHz reference
frequency. The 680XXB is still operable in a degraded mode. The RF output may
contain more spurious signals than normal.
Error 107
Sweep Time Check Failed
Indicates the sweep timing is out of tolerance or has failed. The 680XXB is still
operable in a degraded mode.
Error 108
Crystal Oven Cold
Indicates the 100 MHz crystal oven or the Option 16 high-stability 10 MHz crystal
oscillator has not reached operating temperature. The 680XXB is still operable, but
frequency accuracy and stability may be degraded.
Error 109
The 100MHz Reference is not
Locked to the External
Reference
Indicates the reference loop is not phase-locked to the external 10 MHz reference.
The reference loop may phase-lock to the internal 100 MHz time base;
consequently, the 680XXB would continue to operate normally.
Error 110
The 100MHz Reference is not
Locked to the High Stability
10MHz Crystal Oscillator
Indicates the reference loop is not phase-locked to the optional, high stability
10 MHz crystal oscillator. The reference loop may phase-lock to the internal
100 MHz time base; consequently, the 680XXB would continue to operate normally.
Error 111
Fine Loop Osc Failed
Indicates one or more of the oscillators within the fine loop is not phase-locked.
The 680XXB is still operable but the accuracy and stability of frequency outputs
are greatly reduced.
Table 6-1.
Self-Test Error Messages (1 of 4)
OPERATOR
ERROR AND WARNING/
MAINTENANCE
STATUS MESSAGES
Self-test error messages normally indicate the failure of an
internal component or assembly of the CW generator. There
are no operator serviceable components inside. Refer servic-
ing of the instrument to qualified service technicians.
To prevent the risk of electrical shock or damage to precision
components, do not remove the equipment covers.
WARNING
6-4
680XXB OM
Summary of Contents for 680 B Series
Page 5: ......
Page 11: ...Figure 1 1 Series 680XXB Synthesized CW Generator...
