Panasonic TH-65PX600U Service Manual page 20

6. The STB9V and STB5V from the PA board are provided to the Main CPU IC1103 on
the DG board as 9V detect and 5V detect lines. If any of these voltages is missing, the
TV goes into shutdown and the power LED blinks 10 times as soon as the unit is
plugged into the wall outlet. The STB9V and the STB5V are also applied to the DT.
7. The H board also receives STB9V and STB5V with the addition of the SUB3.3V. The
SUB9V is applied to a DC-DC converter to generate the BT30V.
8. The BT30V is connected to the DT board via the DG board through connectors DG1 and
DG22.
Standby Block Part 2
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