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use-9v-battery-to-test-leds.jpg | Hits: 338 | Posted on: 7/22/07
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After the LEDs are replaced you can test them with a 9V battery on the 2 posts that power the LEDs. (the 2 posts without the copper strips around them are for the leds and they are polarity sensitive if they don't work try the battery in the opposite direction)
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