14-Volt Power Down Detect Circuit - Panasonic TC-26LX20 Technical Manual

14-Volt Power Down Detect Circuit

T he Zero X Detect circuit monitors the presence of the 14 volts source of the main
power supply (P board) and the Sub_5V of the AP board. Under normal operation, pin
5 of the connector DG2 supplies a High to pin 61 of the MPU, IC1106. If, for any reason ,
the Sub_5V or 14 Volts lines drop or disappear, pin 5 of the connector DG2 becomes
low level to trigger a complete shut down of the unit
Figure 16
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