Texas TI-86 Manuel D’Utilisation
Chapter 1: Operating the TI
-86
17
01OPER.DOC TI-86, Chap 1, US English Bob Fedorisko Revised: 02/13/01 2:18 PM Printed: 02/13/01 2:59 PM Page 17 of 22
01OPER.DOC TI-86, Chap 1, US English Bob Fedorisko Revised: 02/13/01 2:18 PM Printed: 02/13/01 2:59 PM Page 17 of 22
To replace the lithium backup battery, remove the battery cover and unscrew the tiny
screw holding the
screw holding the
BACK UP BATTERY
cover in place. Install a new
CR1616
or
CR1620
battery
according to the polarity (+ and
N
) diagram on the cover. Replace the cover and screw.
Turning On and Turning Off the TI-86
To turn on the TI
-86, press ^.
♦
If you
previously had turned off the calculator by
pressing - , the TI
-86 clears any errors and
displays the home screen as it was last displayed.
♦
If Automatic Power Down
TM
(APD
TM
) previously had
turned off the calculator, the TI
-86 will return as you
left it, including the display, cursor, and any error.
ON
1
0
2
3
6
5
4
ST
,
(
(
=
S
U
Y
Z
V
W
RCL
CONS
STRNG
BASE
TES
MEM
:
ANS
CHAR
O
OFF
CONV
T
P
R
Q
To turn off the TI
-86 manually, press - . All settings and memory contents are
retained by the Constant Memory
TM
feature. Any error condition is cleared.
APD turns off the TI
-86 automatically after about four minutes of non-use to extend battery life.
Adjusting the Display Contrast
� Press and release the yellow - key.
� Press and hold $ or # (above or below the half-shaded circle).
� Press and hold $ or # (above or below the half-shaded circle).
♦
To darken the screen contrast, press and hold $.
♦
To lighten the screen contrast, press and hold #.
EXIT
x-VAR
MORE
DEL
2nd
ALPHA
x
QUIT
alpha
LINK
INS
MODE
Properly dispose of the old
battery.
battery.
If you release
$
or
#
while
adjusting the contrast, you
must press
must press
-
again to
continue the adjustment.