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File No. SG-0214
Chapter 8 Theory of Circuit Operation
The operation of user interface
The following diagram provides a brief overview of the user-interactive components of the
firmware.
Figure 8-1 User Interface Block Diagram
The operation of keypad
There are 7 keys to control and select the function. They are “Power, MENU, SET+, SET-,
VOL+, VOL-, INPUT” keys.
1.The power key controls video processor FLI8668, FLI8668 will receive a low/ high
signal to turn on/ off system while press the power key.
2.The other six keys are on high state because the pull up resistor but will transit to low
state dependent on which key pressed, and the state will be reader by FLI8668
through internalADC to act corresponding function.
Содержание VM60P HDTV10A
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