Slide 26
4. Start up Operation (4)
If the micro processor (IC8000) detected “RMIN signal” or “Power Switch signal”, it sends the
TV_SUB_ON signal to the power micom via P6 connector.
5
1)Press the power switch on the TV.
2)Press the Power switch on the remote controller.
After finishing these 2 process, TV unit will start working.
The “Power Switch” signal is reached at IC8000 via A31 connector.
ON command from remote controller is received at K board.
The K board sends “REMOTE IN” command to IC8000 via A1 connector.
4
The DC/DC circuit produces the STB5V and 15V.
The 15V is outputted to the SW.
The STB5V is provided to the ASIC (IC5000) on the A board via connectors P6/A6.
2
The Analog ASIC IC5000 converts the STB5V to STB3.3V.
The STB3.3V prepares the micro processor (IC8000) for program execution.
And the STB3.3V is supplied to POWER LED / REMOTE RECEIVER on K board.
3
When the TV is plugged in:
AC plug voltage is applied to the power circuit (Filter, Rectifier, PFC, DC/DC converter).
Then this power circuit outputs DC voltage to other DC/DC circuits.
1
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