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Functional Overview
WFM90D and WFM91D Service Manual
2-13
6. The sweep rate is only displayed in the Waveform display mode. There is no
sweep rate readout when 2 Field sweep is selected.
7. When the CRC Watch is turned on, the ERROR ED SECONDS message
block appears.
8. The LOW BAT message is displayed when the instrument is battery operated
and the remaining battery power has reached a critically low level. The
remaining length of time that the instrument can be operated reliably is
dependent on the current operating mode.
9. The instrument software version number is displayed when the C onfigura-
tion menu is open with the DISPLAY category selected.
10. The GAIN UNCAL message appears in the Waveform, Vector, and
Waveform-in-Picture display modes when the Variable Gain is on.
11. The MISSING SYNC message appears in all analog video display modes
when the signal reference has been lost. NO SYNC appears in digital modes
when analog sync is missing.
Table 2- 1: Video readout messages
Message Conditions INPUT CTRL setting
DIGITAL Digital video locked to 525 on a
WFM90D; 625 on a WFM91D
DIGITAL or AUTO
<name of video standard> Digital video lock to an unsup-
ported standard
DIGITAL or AUTO
ANALOG No digital video lock AUTO
UNLOCK No digital video lock DIGI TAL