Agilent Technologies 8560E User Manual page 693

Error codes 300 through 399 relate to LO and RF
hardware/firmware failures. Instrument service is required.
YTO UNLK YTO (1ST LO) phase-locked loop (PLL) is
ERR 300
unlocked.
YTO UNLK YTO PLL is unlocked.
ERR 301
OFF UNLK Offset roller oscillator PLL is unlocked.
ERR 302
XFR UNLK Transfer roller oscillator PLL is unlocked.
ERR 303
ROL UNLK Main roller oscillator PLL is unlocked.
ERR 304
FREQ ACC Coarse adjust DAC cannot bring MAINSENSE
ERR 305
close to zero.
FREQ ACC Fine adjust DAC cannot bring MAINSENSE
ERR 306
close to zero.
FREQ ACC Transfer oscillator pretune DAC out of range.
ERR 307
FREQ ACC Offset oscillator pretune DAC not within
ERR 308
prescribed limits at low frequency.
FREQ ACC Offset oscillator pretune DAC not within
ERR 309
prescribed limits at high frequency.
FREQ ACC Main roller pretune DAC set to 255 before
ERR 310
MAINSENSE changes to negative polarity.
FREQ ACC Main roller pretune DAC set to 255 before
ERR 311
MAINSENSE changes to negative polarity.
FREQ ACC Fine adjust DAC cannot bring MAINSENSE
ERR 312
close to zero.
FREQ ACC The combination of sampler oscillator and
ERR 313
roller oscillator frequencies do not correspond to the
required YTO start frequency.
FREQ ACC Span calibration problems. An unlocked main
ERR 314
roller loop or lack of a sweep ramp.
FREQ ACC Span calibration problems. Roller span
ERR 315
attenuator DAC is out of range.
FREQ ACC Sensitivity of the main roller DAC is zero.
ERR 316
FREQ ACC Main coil coarse DAC at limits.
ERR 317
FREQ ACC Main coil fine DAC at limits.
ERR 318
WARN COA The YTO coarse tune DAC is near its limits.
ERR 319
WARN FIN The YTO fine tune DAC is near its limits.
ERR 320
Chapter 9
If You Have a Problem
Error Messages
693