Osd Control Factory Default Values; Monitor Modes And Timing Capability; Format And Timing; Factory Assigned Display Modes - Acer S230HL Service Manual

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ACER S230HL
C) OSD Function:
No Signal
Input not support
Cable not
connect
D) OSD Control Factory Default Values:
The OSD controls shall have the following factory default values:
Brightness: 100 Contrast: 50
Color Temperature: Warm(6500)/Cool(9300)/User (R/G/B all are 100)
Horizontal Position of Screen: Hor.: 50, Ver.: 50
OSD Timeout: 10 seconds
OSD Language: English

1.3.4 Monitor Modes and Timing Capability:

1.3.4.1 Format and Timing:

The monitor shall synchronize with any vertical frequency from
frequency from 30 to 83 KHz for analog input and DVI input. If the input frequency is beyond the specified
range, the monitor shall display a warning screen indicating that the
Under no circumstances shall any combination of input signals cause any damage to the monitor.

1.3.4.2 Factory Assigned Display Modes:

There are 25 factory pre-set video modes. Pre-defined mode parameters will be recalled if the operating
mode is one of those pre-set modes. If the operating mode is not one of those stored in memory, the
monitor CPU will select the PRESET timing for a mode that is the next lowest in horizontal scanning
frequency The screen parameters can be adjusted by the front bezel control buttons and then saved as a
user defined mode. The monitor shall include all the preset video timings shown in the following table.
1. Product Specification
S
This function gives a warning message when selected input signal is not active. When the
Monitor detected that the VGA or DVI is s us pend or standby mode. The Monitor shall display a
message, " No Signal " for 3 seconds and the LED s hall be blue, and to alert the user that input
sinal is not active. Then the monitor shall go into sleep mode and the LED shall be Blinked .
This function gives warning message about input resolution or refresh rate that the monitor
cannot support. When an input signal which is out of the normal operation range defined in
Section 1.3.4.2 Then the monitor will display " Input not supported" message:
1. Pixel clock frequency : 173MHz
2. V-sync frequency:55Hz > FV > 75Hz
3. H- sync frequency: 30KHz > F H > 80KH z
T hi s function gives warning message when the VGA c able is not connected. When the Monitor
detected that the VGA c able is not connected to the monitor . The OSD shall di splay a message
" Cable not connected" al l the time to alert the user that the video cable i s not plugged in. The LED
shall be blue. The monitor shall use a method of a pull -up resistor on a ground pin to
determine if the video cable is connected to the PC.
ACER S230HL
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50 to 75 Hz, and with any horizontal
input frequency is out of range.
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