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Author Message   Krp Tinkerer Username: Krp Post Number: 21 Registered: 07-2006 Rating: N/A Votes: 0 Posted on Monday, January 22, 2007 - 10:22 pm:    Yes, I've seen that happen on the A-1. The contamination Glenn described is usually found in the battery check portion of the circuitry. The fix requires removing the top cover. The battery check has the post/insulator holding it atop the main circuit board.