17" LCD Color Monitor
Hanns.G HQ171A
19
1) MCU initialize.
2) Is the EPROM blank?
3) Program the EPROM by default values.
4) Get the PWM value of brightness from EPROM.
5) Is the power key pressed?
6) Clear all global flags.
7) Are the AUTO and SELECT keys pressed?
8) Enter factory mode.
9) Save the power key status into EPROM.
Turn on the LED and set it to green color.
10) In standby mode?
11) Update the lifetime of back light.
12) Check the analog port, are there any signals coming?
13) Does the scalar send out an interrupt request?
14) Wake up the scalar.
15) Are there any signals coming from analog port?
16) Display "No connection Check Signal Cable" message. And go into standby mode after the message
disappear.
17) Program the scalar to be able to show the coming mode.
18) Process the OSD display.
Содержание HQ171A
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Страница 15: ...17 LCD Color Monitor Hanns G HQ171A 15 4 2 Factory Preset Display Modes h t t p w w w w j e l n e t...
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Страница 30: ...17 LCD Color Monitor Hanns G HQ171A 30 7 PCB Layout 7 1 Main Board h t t p w w w w j e l n e t...
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Страница 33: ...17 LCD Color Monitor Hanns G HQ171A 33 7 2 Power Board h t t p w w w w j e l n e t...
Страница 34: ...17 LCD Color Monitor Hanns G HQ171A 34 h t t p w w w w j e l n e t...
Страница 35: ...17 LCD Color Monitor Hanns G HQ171A 35 7 3 Audio board 7 4 Key board h t t p w w w w j e l n e t...
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