Manufacturers like to file off the part numbers on IC's to make reverse engineering their products harder, but it also makes reparing an item almost impossible.
A trick that sometimes works is to clean the area with surgical / white spirit, and then place a single drop of water over the component and if you're very lucky, the part number will be visible. You can see from the image on the right that this is a 4017 IC.
A trick that sometimes works is to clean the area with surgical / white spirit, and then place a single drop of water over the component and if you're very lucky, the part number will be visible. You can see from the image on the right that this is a 4017 IC.
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