Osd Function; Osd Control Factory Default Values; Monitor Modes And Timing Capability; Format And Timing - Acer A221HQV Service Manual

ITEM Content
Volume To increase or decrease the sound level
Brightness Adjust backlight luminance of the LCD panel
Contrast Adjust gain of R,G,B signal
Clock Adjust the ratio of dividing frequency of the dot clock
Focus Adjust the phase of the dot clock
H.Position The active screen is horizontally move right and left
V.Position The active screen is vertically move up and down
Color temp Select three kinds of modes(Warm, Cool, User)
1.USA-select the language among English, French,
Italian, Deutsch, Spanish, ·±ówÖÐÎÄ , º†ówÖÐÎÄ , ÈÕ±¾ÕZ
OSD
2.EMEA-select the language among English,
Language
French,Italian, Deutsch, Spanish, Russian, Dutch,
Finnish
OSD Position Adjust the OSD menu position
OSD Timeout The OSD menu show time
Setting The setting of Input Source, Wide Mode, DDC/CI
It will show resolution, the frequency of
Information
horizontal/vertical synchronizing and S/N
Reset All data copy from shipment factory data
C) OSD Function:
This function gives a warning message when selected input
signal is not active. When the Monitor detected that the VGA
Power or DVI is suspend or standby mode. The Monitor shall display
Saving Mode a message, "No Signal" for 4 seconds and the LED shall be
Menu blue, and to alert the user that input signal is not active.
Then the monitor shall go into sleep mode and the LED shall
be Amber.
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 3.2. Then the monitor will display "Input not supported"
Out of message:
range Menu 1. Pixel clock frequency : Fc>165(Digital)
2. V-sync frequency: 50Hz>F V>=76Hz
3. H-sync frequency: 30KHz>FH>83KHz(Analog);
This function gives warning message when the VGA cable is
not connected. When the Monitor detected that the VGA cable
is not connected to the monitor. The OSD shall display a
Check Signal message "Cable not connected" all the time to alert the user
cable Menu that the video cable is 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.
D) OSD Control Factory Default Values:
The OSD controls shall have the following factory
default values:
Brightness: 77
Contrast: 50

Color Temperature:

Warm(6500)/Cool(9300)/User (R/G/B all are 100)
Horizontal Position of Screen: 50
Vertical Position: 50
OSD Time: 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 55 to 76 Hz, and with any
horizontal frequency from 30 to 83 KHz for analog
input and from 30 to 83 Khz for DVI input. If the
input frequency is beyond the specified range, the
1. Product Specification (continued)
Fc>205 (Analog)
30KHz>F H>83KHz(Digital)
monitor shall display a warning screen indicating
that the input frequency is out of range. 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 13 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 page.

Preset Timing Chart:

Resolution Horizontal
Frequency
(active dot)
(KHz)
640x480@60Hz 31.469
640x480@72Hz 37.861
640x480@66.66Hz
720x400@70Hz 31.469
800x600@56Hz 35.156
800x600@60Hz 37.879
800x600@72Hz 48.077
1024x600@60Hz 37.32
1024x768@60Hz 48.363
1024x768@70Hz 56.476
1152x864@75Hz
1280x960@60Hz
1280x1024@60Hz 63.981
1280x720@60Hz 44.76
1280x800@60Hz 49.702
1360x768@60Hz 47.712
1440x900@60Hz 55.935
1680x1050@60Hz 65.29
1600x1200@60Hz
1920x1080@60Hz 67.158
1920x1080@60Hz
1920x1080@60Hz 66.587
Preset video timings (digital inputs)
Primary Video Format Timings
640x480p@59.94/60Hz
720x480p@59.94/60Hz
1280x720p@59.94/60Hz
720x576p@50Hz
1280x720p@50Hz
1920x1080i@59.94/60Hz
1920x1080i@50Hz
1920x1080p
1920x1080p
1.3.4.3 Mode Recognition Pull-in:
The monitor shall recognize preset modes within
a range of +/- 1 KHz for horizontal and within a
range of +/- 1Hz for vertical.
1.3.5 Controller Requirements:

1.3.5.1 General Requirements:

The monitor shall include a controller which is
capable of converting the analog RGB signal or
ACER A211H/A221HQ
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Vertical Nominal Pixel User Manual
Frequency
Clock (MHz) description
(Hz)
59.941 25.175 Yes Established Timing
72.809 31.5 No
35 66.66 30.24 Yes Established Timing
70.087 28.322 Yes Established Timing
56.25 36 Yes Established Timing
60.317 40 Yes Established Timing
72.188 50 No
60 48.964 No
60.004 65 Yes Established Timing
70.069 75 Yes Established Timing
67.5 75 108 Yes
60 60 108 No
60.02 108 Yes
No
60 74.481
Yes
59.81 83.5
No
60.015 85.5
59.887 106.5 Yes
59.954 146.25 No
75 60 162 No
59.963 173 Yes
67.5 60 148.5 Yes
59.934 138.5 No
Cable
59.94/60Hz Cat1
59.94/60Hz Cat1
59.94/60Hz Cat1
50Hz Cat1
50Hz Cat1
59.94/60Hz Cat1
50Hz Cat1
50Hz Cat2
59.94/60Hz Cat2
5
EDID
N/A
N/A
N/A
Standard Timing
N/A
Standard Timing
N/A
Standard Timing
N/A
Standard Timing
N/A
N/A
Standard Timing
Detail timing
Remark
CEA
Timming