Tektronix 4010 Maintenance Manual page 8

Installation and Operation-4010 Maintenance
Reserved for Accessories or Options
Indicator Indicator Switch Switch
No. 1 No. 2 No. 1 No_ 2
Space Bar
Fig_ 1-5. 4010 Keyboard section.
NOTE
Switch No.3
This switch
is labeled
"MAKE COpy"
on 4010-1
Cross-hair
Cursor
Controls
Keyboards with SN B055575 and up will not have the TTY codes (WRU, TAPE, .:r-AflE-, TAB, X OFF, EaT, and
FORM) on the keycaps. The 'FORM' label over the 'L' is replaced by /. Both keyboards function in the same manner.
Keys
The keyboard (shown in Fig. 1-5) is a TTY-type and is
similar to a typewriter keyboard. It is designed for single
key entry, dual key entry, and triple key entry. These are
explained in the following paragraphs.
Single Key Entry
PAGE
ALT MODE
LINE FEED
'-4
Causes transmission of ASCII-coded
characters as i"dicated on the indi-
vidual keys, with exceptions as
listed here. Where two characters
are shown on the key, the lower
one applies. All letters are sent as
upper case.
Does not cause transmission, but
erases and resets the Terminal to
Alpha Mode, at home position.
Sends the ASCII code for closing
brace.
Sends the ASCII-coded control
character LF.
RETURN
CTRL
RUB OUT
RESET
BREAK
SHIFT
Space Bar
Sends the ASCII-coded control
character CR.
Has no effect when used alone.
Used for dual key and triple key
entry.
Sends the ASCII code for DEL.
Does not cause transmission, but
resets the Terminal to Alpha Mode,
home position.
Sends an interrupt signal to the
interface unit. The signal sent to
the computer is interface
dependent.
Resets the display from hold to
view status in Alpha Mode. Has no
other effect when used alone. Used
for dual key and triple key entry.
Transmits ASCII-coded SP signal.
REV. B, APR. 1976