7800 SERIES S7800A KEYBOARD DISPLAY MODULE
7 65-0090—4
Keyboard Functions
The keyboard contains four push-buttons with separate
functions (SCROLL-down, SCROLL-up, MODE, and
CHANGE-LEVEL). The MODE and CHANGE-LEVEL, when
pressed together, provide a SAVE function.
1. SCROLL down-up push-buttons (↕). See Fig. 9. The
SCROLL down-up push-buttons (↕) are used to scroll
through the selectable messages. The double-headed
arrow (↕), which is located in the lower left position of
the second line of the display, represents the SCROLL
down-up push-buttons. The SCROLL down-up push-
buttons (↕) can be pressed to display the selectable
messages one at a time or held down to scroll through
the selectable messages at the rate of two per second.
When the last item of the selectable message is viewed,
the display wraps around and displays the first
selectable message again.
2. CHANGE-LEVEL push-button (
↔), see Fig. 10. The
CHANGE-LEVEL push-button is used to change
between the first hierarchy of selectable messages to a
subset of selectable messages. The CHANGE-LEVEL
push-button can also be used to change from a subset
message to a first level selectable message. The
symbol (<), located on the second line in the lower right
corner of the display, represents a subset of selectable
messages.
3. MODE push-button, see Fig. 11. Use the MODE
push-button to instantaneously switch the display from a
second-line selectable message to a second-line
preempted message. The sixty second time-out
function can also be used for this task. The MODE
push-button only works if there is a second-line
preempted message or a lockout message.
Fig. 9. SCROLL (↕
) push-button function.
Fig. 10. CHANGE-LEVEL (
↔) push-button function.
RUN
Total Cycles 333
M1932A
RUN
Total Hours 1332
BURNER CONTROL
SCROLL
MODE
SAVE
SCROLL
MODE
SAVE
BURNER CONTROL
PILOT IGN 00:05
Fault History
M1933A
PILOT IGN 00:10 H1
Fault Cycle 174
SCROLL
MODE
SAVE
SCROLL
MODE
SAVE
BURNER CONTROL
BURNER CONTROL
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