Chapter 3 - Using the Controls957 Operator’s Manual, Rev. B Page 31calculator-style from the right side of the data area. If youmake a mistake, press the CLEAR key to clear the entirenumber and re-enter it, or press the CURSOR PAD left tore-enter particular digits one at a time.Entering letters andcharactersWhen the 957 expects you to enter letters, such as waypointnames and descriptions, the operation is slightly different thanentering numbers. Each key is labeled with three letters and adigit. For example, the upper left key is labeled with the lettersA, B, C and the digit 1. Press this key once to display the letterA. Press this key again to display the second letter, B. Pressinga third and fourth time displays the letter C and the digit 1,respectively. A fifth press brings you back to the letter A again.To enter a character, first find the key containing thecharacter, and press that key one to four times to display thedesired character. To move the cursor to the next characterposition, press the CURSOR PAD right.Using the CLEARand ENTER keysThe KEYPAD has CLEAR and ENTER keys for erasing orentering data that’s already been typed. The CLEAR keyremoves any data you’ve already typed—resetting the field toall blanks or restoring the original value. The ENTER key isalways the last step when entering or changing data, or whenacknowledging an action.The CLEAR and ENTER keys are also used to reject or acceptactions displayed in question boxes that appear on the screen.For example, if you press the GO TO CURSOR key, the 957displays the message START NAVIGATING TO CURSORPOSITION? YES... PRESS “ENTER” NO... PRESS “CLEAR,” andwaits for you to press the ENTER or CLEAR key.Using the menu keysThe six round MENU keys on the right side of the screen havea variety of functions that usually depend on the screen you’recurrently displaying.
