Question about Texas Instruments TI-84 Plus Calculator

# TI 84 Plus had some water damage. Calculator works except for certain keys (0, ., (-) and enter. Any ideas?

Posted by on

• Level 1:

An expert who has achieved level 1.

MVP:

An expert that gotĀ 5 achievements.

Governor:

An expert whose answer gotĀ voted for 20 times.

New Friend:

An expert that has 1 follower.

• Contributor

note the location of the non-working keys
take the batteries out
unscrew all screws from the back of the calculator
pull top and bottom halves apart (do this carefully so you don't break something) and hold calculator so keys and screen are down.
check for corrosion under non-working keys, it'll be a different color of metal on circuit board under keys
if you find corrosion use steel wool or some other mildly abrasive device to gently remove
reassemble calculator

Posted on Mar 13, 2011

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
goodluck!

Posted on Jan 02, 2017

×

my-video-file.mp4

×

## Related Questions:

### Ti 84 water damage

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and release the 2ND key. Press and hold the Up-arrow key for a few seconds and see whether the screen becomes legible.

Nov 11, 2013 | Texas Instruments TI-84 Plus Calculator

### What is the percentage of increase from \$93,667.00 to \$101,203.00

Press 1 0 0 * ( 1 0 1 2 0 3 - 9 3 6 6 7 ) / 9 3 6 6 7 ENTER on your TI-84Plus calculator.

"*" is the multiplication key, "/" is the division key.

May 10, 2011 | Texas Instruments TI-84 Plus Calculator

### On a TI 84 plus how do you find something lets sat 140 to the 27th power?

To calculate 140 to the 27th power, press
1 4 0 ^ 2 7 ENTER

^ is the key just above the divide key.

Feb 17, 2011 | Texas Instruments TI-84 Plus Silver...

### TI-84 Plus Silver Edition. When dividing negative powers of ten by other negative powers of 10 the calculator it just adds the the negative powers together. How do i fix this? An example: 5*10^-10 /...

To enter an exponent, positive or negative, use the EE (Enter Exponent) key (the shifted function of the , key just above the 7 key). Do 5 2ND [EE] (-) 1 0 / 5 2ND [EE] (-) 1 0 ENTER and you'll see 1.

What I think you're doing (I can't be sure without seeing your keystrokes) is calculating
5*10^-10/5*10^-10 which is interpreted as (5*10^-10/5)*10^-10, which indeed is 10^-20.

Oct 16, 2010 | Texas Instruments TI-84 Plus Silver...

### Where is the equal sign on the ti 84 plus

hello sir, Press "second" "math", and it should be the first thing listed. If you need other commands hit "second" "0" that will enter the catalog and you can press any letter (without hitting alpha) to jump to that letter in the list. Please click on the following link to see the manual of the TI-84 Plus Calculator:
kindly rate me.. thanks for using fixya..

Mar 03, 2010 | Texas Instruments TI-84 Plus Calculator

Make certain you have registered your calculator on their site. I think you need to enter you internal number. The internal number can be found by pressing the 2nd key, then the plus key and choosing about in this screen.

Jun 09, 2009 | Texas Instruments TI-84 Plus Silver...

### Can't find the % button on TI-84 plus :(

Just hit the 2ND key and the 0 (catalog key)scroll down to percentage or just divide the answer by 100.

Feb 13, 2009 | Texas Instruments TI-84 Plus Silver...

### TI-84 Plus calculator without ~ | or y keys

type 15 then click a button that looks like this^. then 365. Then hit enter. it is like a normal clcutor except with more function. Sometimes you need to use the 2nd and the alpha button to do some functions.

Jan 17, 2009 | Texas Instruments TI-84 Plus Calculator

### Keys not working

same thing happened to me except its 7 4 and 1 along with the "apps" "sin" and "," keys and it just registers as a 0. ( when i press those keys it puts in 0 on screen)

Aug 25, 2008 | Texas Instruments TI-84 Plus Calculator

## Open Questions:

#### Related Topics:

170 people viewed this question

Level 3 Expert

Level 3 Expert