Texas TI-86 用户手册

 

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 

BACK UP BATTERY

 cover in place. Install a new 

CR1616

 or 

CR1620

 battery

according to the polarity (+ and 

) diagram on the cover. Replace the cover and screw.

To turn on the TI

-86, press ^.

♦ 

If you

 

previously had turned off the calculator by

pressing - ž, 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 - ž. 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.

�   Press and release the yellow - key.
�   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.

If you release  

$

 or  

#

 while

adjusting the contrast, you
must press  

-

 again to

continue the adjustment.