Panasonic Viera TC-P54Z1, Техническое руководство

Страница: 41 / 93

Slide #41
Microprocessors Commands
TV SUB ON (F-STBY-ON), PANEL-STB-ON, and PANEL MAIN ON
The STB5V is generated by the power supply when the TV is connected to the AC line. The STB5V
is output from the power supply when the Main switch on the TV is set to the On position.
• The power switch is used to allow the power supply to output the STB5V to the DA board.
The system MPU IC becomes active when STB5V is applied to the DA board. When the
MPU is energized, it outputs the “TV Sub On” command to the Power supply.
• The “TV Sub On” (3.2V) command is used to turn on the circuit in the power supply that
generates the F+15V.
The F+15V is provided to the DA to generate the Sub-voltages used by the signal process
circuit.
When the output of the Sub-voltages is confirmed by the system MPU, it outputs the
“Panel STB On” command.
• The “Panel STB On” (3.2V) command is used to energize the panel MPU IC.
When the panel MPU is energized, it outputs the “Panel Main On” command.
• The “Panel Main On” (3.2V) command is applied to the power supply to turn on the
circuits that generate the Vsus, Vda, P15V, and P5V.
Note: The “TV-MAIN-ON” command applies to wireless connection only. It allows 12V to be
output to the wireless receiver module through the WiHD cable.