Acer AL922 Support Question
Acer AL922 Support Question
Find answers below for this question about Acer AL922.Need a Acer AL922 manual? We have 2 online manuals for this item!
Question posted by komladzen2005 on December 25th, 2012
What Is Wrong With My Acer Monitor Al922. It Cannot Display.
My monitor Acer AL922 has power and connected to CPU but can no more display. This occur after power fluctuation. What is wrong with it and what should i do?
Current Answers
Related Acer AL922 Manual Pages
AL922 Monitor Service Guide - Page 1
...VL-901 DISPLAY CONTROL BOARD...20 3.1 Description...20 3.2 Features ...20 3.3 Block Diagram ...21 3.4 Connector Locations...22 3.5 Connector Type...22 3.6 Connector Pin Assignment...22
4. Power Line Transient ... 5.2 Electrical characteristics ...27 5.3 Connector locations ...28
6. AL 922 TFT LCD MONITOR
CONTENTS
1. DC/DC POWER and Audio CKT VM-902 29 6.1 Input:...29 6.2 Output: ...29 6.3 ...
AL922 Monitor Service Guide - Page 3
.... It also supports VESA DPMS power management and plug & play function. There is a build-in addition MTBF target is 20k hours or more.
3 INTRODUCTION
1.1 Scope
This specification defines the requirements for the 19" MICRO-PROCESSOR based Multimode supported high resolution color LCD monitor, This monitor can be directly connected to provide a performance oriented product...
AL922 Monitor Service Guide - Page 4
... otherwise specified )
User red/white balance, Green/white balance and Blue/white balance control: Power input :
In the center (unless otherwise specified ) 110Vac or 230Vac
Ambient temperature : Analog... contrast control:
Connected to the monitor under the following conditions, unless otherwise specified. FUJITSU FLC48SXC8V
Display size : 376.32mm(H) x 301.056mm(V)
Display mode :
VGA...
AL922 Monitor Service Guide - Page 11
...Horizontal Frequency 24KHz --80KHz(analog), 31.5- 80KHz(digital)
• Vertical Frequency
56Hz ---------75Hz DISPLAY MODES
MONITOR
MODE NO.
1 2 3 4 5 6 7 8 9 10 11 12 13 ...11 2.4 Input Signals
2.4.1 Video input
• Type • Input Impedance • Polarity • Amplitude • Display Color
Analog R, G, B., Digital TMDS 75 ohm +/- 2% Positive 0 - 0.7 +/- 0.05 Vp same as LCD panel...
AL922 Monitor Service Guide - Page 12
...
59.94
-
640x480
35.00
- VGA-400-TEXT 70.087
+
832x624
49.725
- But the display quality may not be shown.
12 NEC PC9801
56.42
-
640x400
31.469
- NEC PC9821
70.15...not a supported timing listed above but within the supported frequency range (Horizontal: 80KHz,Vertical: 75Hz), this monitor will be optimized.
APPLE MAC-
74.55
-
800
800x600
35.156
+
SVGA
56.25
+
...
AL922 Monitor Service Guide - Page 13
Monitor should display 85Hz refresh rate mode as emergency mode. Pin assignment for D-sub connector
PIN
Separate Sync
NO.
1
RED VIDEO
2
GREEN VIDEO
3
... at this mode.
2.4.5 Video input Connector
Analog Video input Connector: 15pins mini D-Sub
Table 2.4.5. 2.4.4 85Hz refresh rate Support
Monitor should display "Out of plastic parts: Blue
5
1
10
6
15
11
D-sub connector
13
AL922 Monitor Service Guide - Page 14
... NC
21 NC
6 DDC-Serial Clock
14 +5V power *)
22 Shield (TXC)
7 DDC-Serial Data
15 Ground (+5V)
23 TXC+
8 No Connect
16 Hot plug detect
24 TXC-
*) In case, the power of the PC unit is switched off and the power of the monitor is switched on, no voltage may occur at pin 14.
14
AL922 Monitor Service Guide - Page 17
...Total 21 recent used modes are recorded into AL922(AM999)
VESA DPMS Functionality When signaled by the host CPU, AL922(AM999) show a black screen about 3...0.189 0.194 0.198
- Other features:
Intellectual-Auto AL922(AM999) can start the Auto-Adjustment automatically when input a new display mode at first time.
After the adjustment, AL922(AM999) will remember this mode and switch to optimized ...
AL922 Monitor Service Guide - Page 18
... Voltage Range The monitor shall operate within specification over the range of 90 to 265 VAC power supply.
2.7.2 Input Frequency Range Input power frequency range shall be from 47.5 to 63 Hz over the specified input voltage range.
2.7.3 Quick specification review
• Input current
1.5A (max) at 90VAC ...
AL922 Monitor Service Guide - Page 20
... board is design to directly convert the analog RGB signals from standard VGA display card to optimum LCD timing signals so as to construct a high display quality LCD monitor.
3.2 Features • On board embedded micro-processor to detect display timings and control user
functions.
• Using Genesis gm5120 design to generate optimum LCD timings...
AL922 Monitor Service Guide - Page 24
...10
Signal NC LED-Y LED-G GND KEY-POWER KEY-DOWN KEY-R KEY-L KEY-UP GND
Comment NC Power saving mode Monitor is ON GND Power ON/OFF key Function select counter-clockwise ...Power *)
22 Shield (TXC)
7 DDC-Serial Data 15 Ground (+5V)
23 TXC-
8 No Connect
16 Hot plug detect 24 TXC+
*)In case, the power of the PC unit is switched off and the power the monitor is switched on, no voltage may occur...
AL922 Monitor Service Guide - Page 25
...user interfaced control panel which passes and receives signals to and from VL-901 display control board.
4.2 Connector and Switch Locations
4.3 Connector type
Location
Type
J1
4500-10...4 5
Signal
VOL GND LIN1 RIN1 RIN2
Maker E&T E&T ACER ACER SC
Number of pins 10 11 2 2 9
Comment NC Power saving mode Monitor is ON GND Power ON/OFF key Function select counter-clockwise key Adjust up key...
AL922 Monitor Service Guide - Page 41
...power supply, I/O line, and control line all shall be performed the transient test, but the I/O line and control line is applied with only half of peak voltage (1 KV).
9.10.2
For the comparison of the impulses within one burst.
41 Atmospheric Pressure: 86 kPa to monitor... 50 Ω to 106 kPa
9.10 Test Procedure:
The monitor Display set high-resolution mode, AC input use AC 240V.
9.4...
AL922 Monitor Service Guide - Page 51
.../009 LAM999F1002/1004/1005/1009 BOARDS
1 ET.92202.001/004/005/009 LAM999F1002/1004/1005/1009 BOARDS
PARTNAME
INVERTER/POWER BOARD
DESCRIPTION
ACER
PART Compal PART Common/
NO.
FRU BOM LIST
Product Line: Monitor System Product Family: System Model:ABO_AL922(ET.92202.00X),X=1,4,5,9. Unique TAT
2 months Rolling Forecast
COMMENT
SUGGEST
FOR
MINIMAL
LOCAL...
AL922 User Guide - Page 1
...from Its Stand 2 Interface for Arm Applications...3 Cable Installation...3 Connecting the Display to your Computer 3 Connecting the AC Power...3 Connecting the Audio Cable ...3 Setting Up the LCD Monitor...4 Power Management System ...4
Chapter 2 Display Controls 4
User Controls ...4 Adjusting the Monitor's Display...4 Function Description ...5
Chapter 3 Technical Information 7
Specifications...
AL922 User Guide - Page 3
... LCD display has four integrated 4 mm, 0.7 pitches threaded nuts, as well as four 5 mm access holes in the plastic covering as illustrated in order to the DC Power Jack
of the monitor. 3. Remove the back panel n from reaching the LCD Monitor. Make sure connection are secure. Connecting the Audio Cable
1.
Sudden power surges may damage your computer. 2.
AL922...
AL922 User Guide - Page 4
... select among functions shown on the back of all OSD menus in "Power Saving Mode". Monitor is in this manual will light yellow. Adjusting the Monitor's Display
The monitor has four function control buttons to switch the monitor ON/OFF.
The VESA DPMS provides four power saving modes through the entire menu items ,then press Adjustment Control...
AL922 User Guide - Page 5
... adjusted parameters to a by user defined CIE
5
AL922 User's Manual
Function Description
Ico n
Function
Brightness
Contrast
H. This function let's you adjust the display's vertical position. Position Sharpness OSD Transparency
Phase
Clock...Attention : After Auto Adjustment, the display might display wrong position or size, if it has received a pattern which has no screen border.
AL922 User Guide - Page 7
AL922 User's Manual
Chapter 3 Technical Information
Specifications
LCD Panel
Size Display Type Resolution Display Dot Display Area (mm) Display Color Brightness Contrast Ratio Response Time Lamp...
Digital
Phase
Digital
Clock
Digital
Display Mode Setup
Use EEPROM to save settings in memory
OSD Format
20 characters x 9 rows
Power Management
Mode
Power Consumption* AC Input
LED Color...
AL922 User Guide - Page 9
..., and the system is ON, all or properly, the monitor screen will use the most clear display.
4. Make sure the power indicator on the LCD Monitor, please perform the following steps :
1. Refer to LCD monitor at all connections are , take advantage of modes supported by this LCD monitor will display a message "No
9
VESA - 480 - 72Hz
-/- VGA-480
-/-
If...
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