Power On Operation - Panasonic TH-37PX50U Technical Manual

Power On Operation

Figure 11
The momentary connection of the power switch to ground supplies a low to the base of
Q4001 (DG board) to turn it on. When Q4001 is on, a low is provided to pin 86 (Key
scan 3) of the microprocessor IC4005.
T he R/C receiver receives the power on command of the remote control and outputs the
IR data to the amplifiers Q4006 and Q4007 of the DG board. The data is amplified and
output to pin 102 of the MPU, IC4005.
Figure 12
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