Acer Al1916c Manual

							 10
Supported Timing 
[. 
 
 
 
 
 
Support Modes 
 
There will be 20 total support modes to accommodate the above mode and other video modes within the frequency 
range of the monitor.   
85Hz refresh rate Support  
Monitor should display 85Hz refresh rate mode as emergency mode. Monitor should 
display “ Out of Range” warning menu at this mode.   
 
 
  
						

							 
 
11
Monitor Block Diagram 
The LCD MONITOR will contain a main board, a power board, keypad board and audio board which house the flat 
panel control logic, brightness control logic and DDC. 
The Inverter board will drive the backlight of panel. 
 
 
  
  
 
                
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Video signal, DDC
Power Board 
(Inverter, adapter Board) 
Flat Panel and 
CCFL 
backlight
Main Board 
 
Keyboard
RS232 Connector For 
white balance adjustment 
in factory mode 
HOST Computer 
CCFL Drive. 
AC-IN 
100V-240V 
Audio board 
						

							 12
Main Board Diagram 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
LCD Interface 
Scalar TSUM16AK 
(Include: MCU, ADC, OSD etc)SST25VF010-
20-4C-SAE 
OSD Control 
Interface (Keypad)
 
D-SUB 
Connector
 
EEPROM 
24C02 
Crystal 
14.318MHZ 
EEPROM
AT24C16N 
						

							 
 
13
Software Flow Chart     
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
NY
5
Y N 
10
Y N
12
Y  N 
7
YN
6
4
3
8
9
14
11
13
YN
15
YN
16 
17
19
Y  N 
18  
						

							 14
Remark:  
1) MCU initializes. 
2) Is the EEPROM blank? 
3) Program the EEPROM by default values. 
4) Get the PWM value of brightness from EEPROM.   
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 EEPROM. 
Turn on the LED and set it to green color. 
Scalar initializes. 
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 disappears. 
17) Program the scalar to be able to show the coming mode. 
18) Process the OSD display. 
19) Read the keyboard. Is the power key pressed?  
						

							 
 
15
Main Board Layout 
 
 
Label Part number  Description 
CN405  88G 35315F H  D-SUB 15PIN 
CN101  33G801724B H  PIN HEADER 24P 2.0mm 
U401 56G 562100  TSUM16AK 
X401  93G 22 53  CRYSTAL 14.318MHzHC-49U 
 
 
  
						

							 16
Front Bezel 
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. 
By changing these settings, the picture can be adjusted to your personal preferences. 
•  The power cord should be connected. 
•  Connect the video cable from the monitor to the video card. 
•  Press the power button to turn on the monitor position, The power indicator will light up.
 
 
 
 
 
EXTERNAL CONTROLS FRONT PANEL CONTROL   
 
Item Description  Item  Description 
1.  Auto Adjust / Exit  4.  MENU/ENTER   
2. <  5.  Power Indicator 
3. >  6.  Power Button  
 
 
 
 
 
 
 
  
						

							 
 
17
Rear Bezel 
Turn off your computer before performing the procedure below. 
1. Plug the power cable of your monitor into a nearby outlet. Plug the other end of the power cord into the PC port. 
2.  Connector one end of 15-pin D-SUB cable to the back of the monitor and connector the other end to the computer’s 
D-DUB port. 
 
Turn on your monitor and computer. 
 
 
 
 
 
 
Item Description 
1. Power Cable 
2. Signal Cable 
 
 
 
 
 
 
 
 
 
  
						

							 18
Operating Instructions                                                  
Press the power button to turn the monitor on or off. The other control buttons are located at front panel of the monitor. 
By changing these settings, the picture can be adjusted to your personal preferences. 
•  The power cord should be connected. 
•  Connect the video cable from the monitor to the video card. 
•  Press the power button to turn on the monitor position. The power indicator will light up. 
 
External Controls   
            
 
 
 
   
Item Description  Item  Description 
1.  Auto Adjust / Exit  4.  MENU/ENTER   
2. <  5.  Power Indicator 
3. >  6.  Power Button  
 
 
 
 
 
Chapter 2 
						

							 
 
19
Front Panel Control 
• /Power Button:  
Press this button to turn the monitor ON or OFF. And display the monitor’s state. 
 
 
• Power Indicator: 
    Green – Power on mode. 
    Orange – Off mode. 
  
 
• Menu / Enter:  
Activate OSD menu when OSD is OFF or activate/de-activate adjustment function when OSD is ON or Exit OSD 
menu when in Volume Adjust OSD status. 
 
• : 
Navigate through adjustment icons when OSD is ON or adjust a function when function is activated. 
 
 
•  Auto Adjust button / Exit: 
1. When OSD menu is in active status, this button will act as EXIT-KEY (EXIT OSD menu). 
2.When OSD menu is in off status, press this button for 2 seconds to activate  the Auto Adjustment  function. 
The Auto Adjustment function is used to set the HPos, VPos, Clock and Focus.   
 
 
 
 
NOTES 
 
•  Do not install the monitor in a location near heat sources such as radiators or air ducts, or in a place subject to direct 
sunlight, or excessive dust or mechanical vibration or shock. 
•  Save the original shipping carton and packing materials, as they will come in handy if you ever have to ship your 
monitor. 
•  For maximum protection, repackage your monitor as it was originally packed at the factory. 
•  To keep the monitor looking new, periodically clean it with a soft cloth. Stubborn stains may be removed with a cloth 
lightly dampened with a mild detergent solution. Never use strong solvents such as thinner, benzene, or abrasive 
cleaners, since these will damage the cabinet. As a safety precaution, always unplug the monitor before cleaning it.