78l05 pin diagram pin diagram and parameter data
Place the multimeter (type 47 mechanical watch) in ×1K file;
Connect the black test lead to ③ and the red test lead to ②, ①, the resistance should be about 200KΩ; if it is about 50 KΩ or below, it is likely to be broken;
Connect the red test lead to ③, and the black test lead to ②, ①, the resistance should be around 9KΩ;
Connect the red test lead to ②, the black test lead to ①or the red test lead to ①, and the black test lead to ②. The resistance should be about 4KΩ.
New Smart Watch
New Smart Watch
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