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external video input to the or if access is externally selectable.
− If a graphic input is available and access is internal to the CDU, the GRAPHIC INDEX
page will be displayed.
If a graphic input is being displayed, selection of other function keys (PERF, NAV, FPL,
PROG, DIR) will return the display to normal FMS operation.
NOTE
If an annunciator and/or scratchpad message is displayed while
viewing a video input, the display will return to the page shown
before the GRAPHIC key was pressed.
· ATC (Air Traffic Control) Key (CDU−820 only) − Pressing the ATC function key will display
the scratchpad message ATC NOT AVAILABLE.
· BACK Key (CDU−820 only) − Pressing the BACK function key will display the scratchpad
message BACK COMPLETE unless video or graphic input is available. If a video or graphic
input is accessed thought the VIDEO INDEX or GRAPHIC INDEX page, pressing the BACK
function key will return the display to the VIDEO INDEX or GRAPHIC INDEX page. Pressing
the BACK function key again will return the display to the page shown before the VIDEO or
GRAPHIC key was pressed. Pressing the BACK function key a third time will display BACK
COMPLETE in the scratchpad.
· FN (Function) Key (CDU−820 only) − Pressing the FN function key will display the
scratchpad message FN NOT AVAILABLE.
Pressing and holding the FN function key for 5 seconds will display the SYSTEM SETUP
page.
NAVIGATION
REV 41, Jul 08, 2004 Flight Crew Operating Manual
CSP 700−6
Volume 2
17−10−61
FLIGHT MANAGEMENT SYSTEM (FMS) (CONT'D)
Scratchpad
The scratchpad is a working area where the pilot can enter data and/or verify data before line
selecting the data into its proper position. Alphanumeric entries are made into the scratchpad
using the keyboard. As each key is pushed, the character is displayed in the scratchpad.
Information in the scratchpad does not affect FMS until it is moved to another line on the display.
Data is retained in the scratchpad throughout all mode and page changes.
GF1710_121
SCRATCHPAD
ALPHA KEYPAD NUMERIC KEYPAD
Alphanumeric Keys
The alphanumeric keys are used to make entries into the scratchpad. The letters of the alphabet,
the numbers 0 to 9, a decimal, a dash and a slash are each represented with a CDU key.
Clear (CLR) Key
The CLR key has the following functions:
· When a message is displayed in the scratchpad, pushing the CLR key deletes the message.
· Temporary waypoints are identified with an asterisk (*) or pound sign (#) as the first
character. When any entry beginning an * or a # is in the scratchpad, pushing the CLR key
deletes the entire entry.
· When an alphanumeric entry is made in the scratchpad, one character is cleared from the
scratchpad (from right to left) each time the CLR key is pushed. If the CLR key is held down
after the first character is cleared, other characters are cleared, one at a time, until the key is
released.
Delete (DEL) Key
The DEL key is used to delete items from the FMS. When the DEL key is pushed, “DELETE” is
displayed in the scratchpad. The DEL key can be line selected to delete waypoints or other items
displayed in the CDU data fields. When there is a message displayed, the delete function is
inhibited. DEL is also used to return default values after entries have been made.
NAVIGATION
Flight Crew Operating Manual REV 41, Jul 08, 2004
CSP 700−6
Volume 2
17−10−62
FLIGHT MANAGEMENT SYSTEM (FMS) (CONT'D)
FMS Update
To update an FMS (preflight),
proceed as follows:
The NAV IDENT page is displayed when power is first applied. All parameters should be
checked and/or set.
NOTE
The date and time displayed on this page is synchronized with GPS
date and time. The date and time can be changed only if the GPS is
failed or does not have a valid date/time.
DATE
1. To set the date, enter information in scratchpad using the alphanumerical keys.
GF1710_122
NAV IDENT 1/1
10 APR97 27MAR 23APR/97
1459Z 27FEB 26MAR/97
GMT
NZ4 . 869 WORLD2− 04
SW N DB V2 . 0 4M
MAINTENANCE POS INIT
DATE ACTIVE NDB
20 APR 97
2. To enter the new date press 1L.
GF1710_123
NAV IDENT 1/1
20 APR97 27MAR 23APR/97
1459Z 27FEB 26MAR/97
GMT
NZ4 . 869 WORLD2− 04
SW N D B V2 . 0 4M
MAINTENANCE POS INIT
DATE ACTIVE NDB
TIME
1. To set the time, enter information in scratchpad using the alphanumerical keys.
GF1710_124
NAV IDENT 1/1
20 APR97 27MAR 23APR/97
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