Technical data

6-4
Error Messages
Error Messages in Alphabetical Order
CANNOT FORMAT DOS DISKS ON THIS DRIVE. Error Number 185. You have attempted to initialize a floppy disk
to DOS format on an external disk drive that does not support writing to all 80 tracks of the double density
and high density disks. The older single-sided disks had only 66 tracks and some disk drives were limited to
accessing that number of tracks. To format the disk, either choose another external disk drive or use the
analyzer's internal disk drive.
CANNOT MODIFY FACTORY PRESET. Error Number 199. You have attempted to rename, delete, or otherwise
alter the factory preset state. The factory preset state is permanently stored in ROM and cannot be altered.
If your intent was to create a user preset state, you must create a new instrument state, save it, and then
rename it to “UPRESET”. Refer to Chapter 8, “Preset State and Memory Allocation” for more detailed
instructions.
CANNOT READ/WRITE HFS FILE SYSTEM. Error Number 203. The disk is being accessed by the analyzer and is
found to contain an HFS (hierarchical file system) or files nested within subdirectories. The analyzer does
not support HFS. Replace the disk medium with a LIF or DOS formatted disk that does not contain files
nested within subdirectories.
CAN'T STORE/LOAD SEQUENCE, INSUFFICIENT MEMORY. Error Number 127. Your sequence transfer to or from
a disk could not be completed due to insufficient memory.
CAUTION: CORRECTION OFF: AUX CHANNEL(S) DISABLED. Error Number 215. This message is displayed when
correction is forced off due to a stimulus change that is not compatible with the current calibration while
an auxiliary channel is enabled. The auxiliary channels are restored when correction is turned on by
pressing Cal, CORRECTION on OFF.
CAUTION: FLOPPY DISK IS FULL. Error Number 218. This message is displayed if you try to save files to the
floppy disk that does not have enough memory to perform the save task. Correct by inserting a new floppy
disk in the front panel disk drive or by erasing files from the current floppy disk.
CAUTION: INSUFFICIENT SIGNAL FOR BIAS ADJUST. Information Message. This message is displayed when the
optical power is too low to perform an auto bias. The common causes of this message are dirty or poor
optical connectors, defective optical cables, and the safety interlock port at the rear of the test set.
CAUTION: LASER KEY SWITCH IS TURNED OFF. Information Message. Refer to the LASER SOFTKEY IS OFF
error message description.
CAUTION: LASER SOFTKEY IS OFF. Information Message. This message is usually displayed when you are
trying to make an optical measurement when the laser softkey is set to OFF. The message will also be
displayed if the auto bias timer instructs the instrument to perform the auto bias routine. You can disable
the auto bias timer by pressing System, Service Menu, Lightwave Menu, Bias Mode Auto/OFF.
CAUTION: LW TEST SET MISSING. Information Message. This message indicates that the unit is unable to
communicate with the lightwave test set. The probable causes are no power to the lightwave test set, and
the 25-pin test set interconnect cable is not connected properly.
CAUTION: TOO MANY SEGMENTS OR POINTS. Information Message. This message is displayed if you try to
insert too many segments or points using your current function.
CH1 (CH2, CH3, CH4) TARGET VALUE NOT FOUND. Error Number 159. Your target value for the marker search
function does not exist on the current data trace.
CONTINUOUS SWITCHING NOT ALLOWED. Error Number 10. Your current measurement requires different
power ranges on channel 1 and channel 2. To protect the attenuator from undue mechanical wear, test set