Ap Board Protection Shutdown - Panasonic LX600 Technical Information

AP Board Protection Shutdown

The protection shutdown circuit is designed to monitor for a short or loss of
the 10V, 30V, Sound 18V,and the Panel VCC sources. If any of these
voltage sources go low, it will cause Q7210 to conduct. As a result, the
collector of Q7211 goes low to signal a shutdown condition to IC4002 on
the A board. The TV_SUB_ON pin of IC4002 goes low to de-activate the
AC relay on the P board.
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