Panasonic TH-65PX600U Service Manual page 53
Panasonic 9th gen. plasma display television
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Also See for TH-65PX600U:
- Operating instructions manual (63 pages) ,
- Technical manual (38 pages) ,
- Service manual (206 pages)
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PA SOS Detect Circuit
Upon connecting the television to the wall outlet, the STB 5V created by the P board is
applied to the PA board via pin 1 of connector PA40. The TV SUB ON command of the DG
board MPU (IC1103) enters pin 33 of connector PA20 and turns on Q5604. As a result,
Q5643 turns on allowing the STB 5V to the biasing circuit of the transistor Q5641. The
transistor Q5641 remains off until one of the voltages connected to R5625 becomes shorted.
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