Operation; Block Diagram - Toshiba e-STUDIO182 Service Manual

5.4

Operation

5.4.1

Block diagram

The control panel which mainly consists of the panel controlling ASIC and LED driver transmits/
receives the control signal to/from the SoC on the MAIN board, controls the LCD, detects the key
pressed, and controls the ON/OFF of the LED and buzzer.
The LCD is controlled by the signal output from the panel controlling ASIC based on the information
output from the SoC via the control panel data bus.
The input status of each button is output to the SoC via the data bus by the panel controlling ASIC and
detected.
Each LED is controlled to be lit by the LED driver based on the information of the serial data output from
the SoC.
The buzzer is controlled by the buzzer ON signal (BZON) output from the ASIC on the MAIN board.
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CONTROL PANEL
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