Translating step 8
Step 8
Examine & Test
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Examine the contact pads for corrosion.
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To test if the corrosion is causing the calculator to not power on:
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Place good batteries in the back of the case (proper direction)
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Lay the circuit board over the batteries (4 little posts will align them)
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Press down a little over the batteries to make sure they have a good connection (if necessary)
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Tap a screwdriver to short the "ON" contact pad (top right)
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If the display comes on, then the corrosion is the problem
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Follow the same steps for testing if the corrosion is causing a key not to work. Except short the contact pad for that key to test it.
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