Acer A221HQV, Service Manual

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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.
1. Product Specification (continued)
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
C) OSD Function:
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
Preset video timings (digital inputs)
Preset Timing Chart:
Cable Remark
640x480p@59.94/60Hz 59.94/60Hz Cat1
720x480p@59.94/60Hz 59.94/60Hz Cat1
1280x720p@59.94/60Hz 59.94/60Hz Cat1
720x576p@50Hz 50Hz Cat1
1280x720p@50Hz 50Hz Cat1
1920x1080i@59.94/60Hz 59.94/60Hz Cat1
1920x1080i@50Hz 50Hz Cat1
1920x1080p 50Hz Cat2
1920x1080p 59.94/60Hz Cat2
Primary Video Format Timings
CEA
Timming
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,
繁體中文
,
簡體中文
,
日本語
2.EMEA-select the language among English,
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
Information
It will show resolution, the frequency of
horizontal/vertical synchronizing and S/N
Reset All data copy from shipment factory data
OSD
Language
Power
Saving Mode
Menu
This function gives a warning message when selected input
signal is not active. When the Monitor detected that the VGA
or DVI is suspend or standby mode. The Monitor shall display
a message, “No Signal” for 4 seconds and the LED shall be
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.
Out of
range Menu
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”
message:
1. Pixel clock frequency : Fc>165(Digital)
Fc>205 (Analog)
2. V-sync frequency: 50Hz>F V>=76Hz
3. H-sync frequency: 30KHz>FH>83KHz(Analog);
30KHz>F H>83KHz(Digital)
Check Signal
cable Menu
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
message “Cable not connected” all the time to alert the user
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.
Resolution Horizontal Vertical Nominal Pixel User Manual
(active dot)
Frequency
(KHz)
Frequency
(Hz)
Clock (MHz) description
640x480@60Hz 31.469 59.941 25.175 Yes Established Timing
640x480@72Hz 37.861 72.809 31.5 No N/A
640x480@66.66Hz 35 66.66 30.24 Yes Established Timing
720x400@70Hz 31.469 70.087 28.322 Yes Established Timing
800x600@56Hz 35.156 56.25 36 Yes Established Timing
800x600@60Hz 37.879 60.317 40 Yes Established Timing
800x600@72Hz 48.077 72.188 50 No N/A
1024x600@60Hz 37.32 60 48.964 No N/A
1024x768@60Hz 48.363 60.004 65 Yes Established Timing
1024x768@70Hz 56.476 70.069 75 Yes Established Timing
1152x864@75Hz 67.5 75 108 Yes Standard Timing
1280x960@60Hz 60 60 108 No N/A
1280x1024@60Hz 63.981 60.02 108 Yes Standard Timing
1280x720@60Hz 44.76 60 74.481
No N/A
1280x800@60Hz 49.702 59.81 83.5
Yes Standard Timing
1360x768@60Hz 47.712 60.015 85.5
No N/A
1440x900@60Hz 55.935 59.887 106.5 Yes Standard Timing
1680x1050@60Hz 65.29 59.954 146.25 No N/A
1600x1200@60Hz 75 60 162 No N/A
1920x1080@60Hz 67.158 59.963 173 Yes Standard Timing
1920x1080@60Hz 67.5 60 148.5 Yes Detail timing
1920x1080@60Hz 66.587 59.934 138.5 No
EDID
5 ACER A211H/A221HQ