Agilent Technologies 8560E User Manual page 694

If You Have a Problem
Error Messages
FREQ ACC Main roller tuning sensitivity is not greater
ERR 321
than zero.
FREQ ACC Main roller pretune DAC value set greater
ERR 322
than 255.
FREQ ACC Coarse adjust DAC cannot bring MAINSENSE
ERR 324
close to zero.
FREQ ACC Fine adjust DAC cannot bring MAINSENSE
ERR 325
close to zero.
FREQ ACC Fine adjust DAC near the end of range.
ERR 326
OFF UNLK Offset roller oscillator PLL is unlocked.
ERR 327
FREQ ACC Roller fine adjust DAC sensitivity less than or
ERR 328
equal to zero.
FREQ ACC Roller coarse adjust DAC sensitivity less than
ERR 329
or equal to zero.
FREQ ACC Invalid YTO frequency.
ERR 331
600 UNLK 600 MHz reference oscillator PLL is unlocked.
ERR 333
LO AMPL 1st LO distribution amplifier is unleveled. The
ERR 334
front panel LO OUTPUT must be terminated in a 50Ω
load.
SMP UNLK Sampling oscillator PLL is unlocked.
ERR 335
10 MHz Ref Cal oscillator failed to lock when going to
ERR 336
internal 10 MHz reference.
FN UNLK Fractional N circuitry is unable to lock.
ERR 337
LOMA AGC The LOMA (local oscillator multiplier
ERR 338
amplifier) main loop AGC is unleveled.
SBTX AGC The LOMA SBTX (switched barium-tuned
ERR 339
mixer) loop AGC is unleveled.
SAMP AGC The LOMA (local oscillator multiplier
ERR 340
amplifier) sampler loop AGC is unleveled.
SETL FLD The YTO error voltage is not settling.
ERR 351
TWID FLD Unable to bring error voltage DACs to
ERR 352
quiescent point.
SRCH FLD No acceptable YTO DAC value found.
ERR 353
LK ITERS Cannot lock. Lock iteration routine
ERR 354
terminated.
SMP CAL Sampler unlock condition during calibration
ERR 355
routine. This error remains until a successful
recalibration is performed.
694 Chapter 9