Texas Instruments TI-92 User manual

Replacing Texas Instruments TI-92 Backup Battery
Tools used in this guide
Phillips #00 Screwdriver
Parts relevant to this guide
CR 2032 3V Lithium Battery
Step 1 - installation Back Cover
The first step to any repair operation is to
remove the front cover.
Grab the back of the calculator with one hand and the
cover with the other.
Pull the cover off from one of the sides for easy
removal.
Replacing Texas Instruments TI-92 Backup Battery
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Step 2
Orientate the calculator with the top facing towards you.
Slide the locking tab,found on the top part of the
calculator, to the unlock position.
Step 3
"Locking Tab"
To remove the back cover, slide the cover away from
the locking tab towards the bottom of the calculator until
the cover no longer slides.
Then with the front of the calculator facing down, pull
up on the back cover.
The calculator should now be orientated with the front
facing down, as shown in picture 2.
Replacing Texas Instruments TI-92 Backup Battery
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Step 4 - Backup Battery
Before removing the backup battery make
sure your AA batteries are installed so that
there is no loss of information.
Using a #00 Philip Screwdriver remove the 19mm
screw located near the center of the back of the
calculator on the panel with words "Test Access"
Step 5
Remove the screw and lift the panel to access battery.
Replacing Texas Instruments TI-92 Backup Battery
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Step 6
The backup battery can now be seen underneath a
small metal cover held by a screw.
Using the same screwdriver, unscrew the 4.6mm screw
located under the panel and left of the backup battery.
Step 7
Remove the metal cover keeping the backup battery in
place.
Replacing Texas Instruments TI-92 Backup Battery
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Step 8
Use an Ipod Opening Tool or a similar tool to pull up on
the right side of the backup battery.
The battery should pop out of position.
Step 9
After the battery has been tilted out of its socket, simply
remove it with your hands.
Replacing Texas Instruments TI-92 Backup Battery
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