2
Service
126
Keysight 53210A/53220A/53230A Assembly Level Service Guide
Summary of oscillator calibration procedure:
– Input signal: This should be a clean square wave with a fast rise time at
10 MHz, 1 Vp-p, 0V DC offset
– Timebase: Any external timebase you provide is ignored during calibration.
– Verify signal input connections and that source output is ON.
– Procedure: From the front-panel, the following key strokes initiate the internal
reference oscillator calibration:
[Utility] / (Cal AutoCal) / (Perform Cal) / (Cal Step Oscil) / enter <Input Freq> / (Perform
Cal Step)
Remote oscillator calibration summary:
– Set timeout for PC to be greater than 20 seconds.
– Connect calibration source to channel 1 (10.000 000 000 MHz).
– Unlock security:
CALibration:SECurity:STATe OFF, <code>
– Read security state:
CALibration:SECurity:STATe?
- 0 means OFF or unlocked.
– Send command to calibrate: “
CALibration:VALue 10E6
”.
– Send query command: “
CAL?
”.
– Retrieve query result:
- 0 indicates the calibration PASSED.
- Any value other than 0 indicates calibration FAILED.
– If non-zero value, read error queue:
SYSTem:ERRor?
Read errors until no more
errors. Consult the Error Messages section starting on
for more
information on specific calibration error messages.
–
NOTE
For remote calibration, an Internal Reference Oscillator calibration is
automatically selected (over internal DAC calibration) since the cal value of 10E6
is larger than the acceptable DAC voltage range.
Содержание 53210A
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