TH-42XVS30 Protection Circuits
Protection circuits are incorporated in the unit to prevent the failure of a single
circuit or a component from creating catastrophic damage.
A shutdown condition occurs when a there is an over voltage, a short or a drop in
any of the voltage lines. Also, when the fans are drawing more current than
normal the shutdown circuit is triggered.
The microprocessor IC9003 detects when a shutdown condition has been
triggered.
Figure 39 - SOS Detect Circuit
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