Conventions The following conventions are used in this manual: Screen messages Denotes actual messages that appear on screen. NOTE Gives bits and pieces of additional information related to the current topic. WARNING Alerts you to any damage that might result from doing or not doing specific actions.
If, for whatever reason, a part number change is made, it will not be noted in the printed Service Guide. For ACER-AUTHORIZED SERVICE PROVIDERS, your Acer office may have a DIFFERENT part number code to those given in the FRU list of this printed Service Guide.
Warning: (For FCC Certified Models) Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
Precautions Do not use the monitor near water, e.g. near a bathtub, washbowl, kitchen sink, laundry tub, swimming pool or in a wet basement. Do not place the monitor on an unstable trolley, stand, or table. If the monitor falls, it can injure a person and cause serious damage to the appliance.
Special Notes On LCD Monitors The following symptoms are normal with LCD monitor and do not indicate a problem. Notes Due to the nature of the fluorescent light, the screen may flicker during initial use. Turn off • the Power Switch and then turn it on again to make sure the flicker disappears. You may find slightly uneven brightness on the screen depending on the desktop pattern •...
Chapter 1 Monitor Features AU EN02 SEC E1-L01 Driving TFT Color LCD TFT Color LCD system 48cm(19.0") Size 48cm(19.0") Pixel pitch 0.294mm( H )x 0.294mm( V ) 0.294mm( H )x 0.294mm( V ) 250cd/m (Typical) 250cd/m (Typical) Brightness LCD Panel 500:1(Typical) Contrast 700:1(Typical)
Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light : 225 lux Viewing distance : 40 cm in front of LCD panel Warm up time All specifications : 30 minutes Fully functional : 5 seconds Measuring equipment : Chroma 7120 signal generator or equivalent, directly Connected to the monitor under test.
LCD Panel Specification LCD Panel Model (SEC E1-L01) Display Type active matrix color TFT LCD Resolution 1280x1024 pixels Display Dot 1280x (RGB) x 1024 Display Area 376.32mm(H) x 301.056mm(V) Pixel Pitch 0.294mm(H) x 0.294mm(V) Display Color 16.7M (true) Lamp Frequency 80kHz Lamp Current 7.0 mArms (typ)
Panel Relative Humidity Input Signals Video input Type Analog R, G, B. Input Impedance 75 ohm +/- 2% Polarity Positive Amplitude 0 - 0.7 +/- 0.05 Vp Display Color same as LCD panel Sync input Signal separate horizontal and vertical sync, or composite sync which are TTL compatible Polarity positive and negative.
Monitor Block Diagram The LCD MONITOR will contain an main board, an inverter/power board, keypad board and internal adapter which house the flat panel control logic, brightness control logic and DDC. The Inverter board will drive the backlight of panel and the DC-DC conversion. The Adapter will provides the 12V DC-power to inverter/power board Monitor Block Diagram POWER(90V-264V)
Software Flow Chart 1) MCU initialize. 2) Is the eeprom blank? 3) Program the eeprom by default values. 4) Get the PWM value of brightness from eeprom. Check the pin PANEL1 and PANEL2 to tell which panel to get with it. 5) Is the power key pressed? 6) Clear all global flags.
Mechanical Specification The step between front bezel and back cover shall be within specification. Top and Bottom Left and Right Back cover & Bezel concavity Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm 0.8mm ≤ A ≤ 1.3 mm Back Cover &...
Top and Bottom Left and Right Back cover & Bezel step Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm 0mm≤ D ≤ 0.8 mm LCD Horizontally The angle between front bezel and LCD unit in bottom side should not large than 1.0mm. The distance of the LCD display unit from left side to right should not large than 4.0mm.
Tilt Base Rotation Tilt up 15 ± 2°/ down 5 ±2° Plastic Material For TCO99 Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB For MPRII Front Bezel ABS 94HB Back Cover ABS 94HB The Others ABS 94HB GAP Spec.
Chapter 2 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.
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. Power Indicator: •...
Adjusting The Picture Main OSD Menu : a. Outline: I. Analog-Only Model II. Dual-Input Model, Analog Signal Input III. Dual-Input Model, Digital Signal Input...
b. The Description For Control Function : Main Menu Sub Menu Description Adjustmen Reset Value Icon Item Menu t Range Icon Contrast Contrast from Digital-register. 0-100 Recall Cool Contrast Value Brightness Backlight Adjustment 0-100 Recall Cool Brightness Value Focus Adjust Picture Phase reduce...
Auto Config Auto Adjust the H/V Position, Focus and Clock of picture. (Analog-Only Model) Analog Select input signal from analog (D-Sub) Digital Select input signal from digital (DVI) (Dual-Input Model) Information Show the resolution, H/V frequency and input port of current iput timing. Reset Clear each old status of Auto-configuration and set the color temperature to Cool.
Hot-Key Menu: a. Outline: b. The Description For Hot-Key Function : Item Operation Icon Description Adjustment Reset Range Value Volume When the OSD is closed, press Left or Volume of Audio adjustment. The Audio will 0-100 Right button will be Volume Hot-Key be Mute when volume=0.
Logo: When the monitor is power on, the LOGO will be showed in the center, and disappear slowly. How To Optimize The DOS-Mode Plug And Play Plug & Play DDC1/2B Feature This monitor is equipped with VESA DDC1/2B capabilities according to the VESA DDC STANDARD.
Please note that power supply cord needs to use VDE 0602, 0625, 0821 approval power cord in European counties. Update the firmware 1.Tools: a. ISP Kit (Prepared by CMO) picture 1 b. RS232 Comport Cable -- picture 2 c. D-sub Cable d.
Step2---join RS232 Monitor cable,and Adapter Connect to monitor Connect to PC Connect to adapter Connect to chroma Step3—When the LED turns Green, It will start running...
3.Program Runnig Before update the firmware ,please power on the monitor, in this time,please push your finger to control the keyswitch(left: ” ， right ”, insert and draw the DC power ,the interface “< “> will appear “ISP” mode. Step1-Open the ISP tool. And Select the MCU type...
Step2—Select Bank where is the new firmware ?
Step3—Choose the File Format a: when you already choose the New firmware ,a small pane appear “File Format”,please choose the “inte he”, no“Binary ”，and following choose the “OK”...
Step4-- Select the communication Setting: Port Name,the “Port ”the same your PC COM”...
Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance. Disassembly Procedure Disassemble the base 1. Remove the neck cover. 2. Remove the four screws to release the hinge. 3. Remove the base Disassemble the chassis 1.
NOTE: 1.The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding components to avoid mismatch when putting back the components. 2. Note: The monitor surface is susceptible to scratching!Therefore,lay the monitor on a soft surface when mounting or removing the base.
Chapter 4 Troubleshooting This chapter provides troubleshooting information for the AL1921: Main Board 1. No Screen Appear Measured U201 pin 2 = 2.5 V? Check Correspondent component. Measured U202 pin 2= 3.3V? Is there any shortage or cold solder? Check Power Board.
2.Panel-Power Circuit Check the PPWR panel power relative circuit, Q301, Q302(pin 5,6,7,8) Check R302 should have response In normal operation, when LED =green, R302 from 0V to 5V should =0 v, When we switch the power switch If PPWR no-response when the power switch from on to off Turn on and turn off, replace the U203-MST8131B OK,R308 have response...
4.U602-Data Output NG , no transition Measured DCLK(R240)DVS, DHS (pin 117,116 from U203 ) Is the waveform ok? Replace MST8131B (U401) or DCLK around 48 MHZ , DVS=60.09Hz , DHS around 80 replace MAINBOARD. KHz ?(refer to input signal=640x480@60 Hz 31k, and LED is Green) Check U203 MST8131B, Signal output If MainBoard being replace , please...
Power/Inverter Board 1.) No Power Check to CN102 Pin1 and pin2 = 5V Check Interface board Check AC line volt 120V or 220V Change F901 , check BD901,Q903,IC901 Check the voltage of C905(+) Check bridge rectified circuit cFailure Check start voltage for the pin3 of IC901 Repeating the start voltage Change IC901 Check the auxiliary voltage is smaller than 20V...
2.) W / LED , No Backlight Check C201(+) =12V Change F902 Check D201/Q209/Q210 or D202/Q211/Q212 Check ON/OFF signal Check Interface board Check U201 pin9=12V pin9=12vvoltage of C905(+) Change Q201 or Q202 Check the pin1 of U201 have sawtooth wave Change U201 Check D201(-),D202(-) have the output of square wave at short time.
KeyPad Board OSD is unstable or not working Is KeyPad Board Connect KeyPad Board ll ? Replace Button Switch Is Button Switch normally ? Is KeyPad Board Normally ? Replace KeyPad Board Check Main Board...
Chapter 5 Connector Information The following figure shows the connector locations on the monitor board: 15 - Pin Color Display Signal Cable(D-sub) PIN NO. DESCRIPTION PI N NO. DESCRIPTION Green Ground Blue Ground Ground DDC-Serial Data Ground H-Sync R-Ground V-Sync G-Ground DDC-Serial Clock B-Ground...
DIFFERENT part number code from those given in the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer office to order FRU parts for repair and service of customer machines.
Note: Above picture show the description of the following component Item Picture Description Part No. HOLDER CABLE W33L4633-GD-X 20L003-1 SCREW M1L 330 6120 SCREW Q1L 130 6120 FOOT-PORON 12L 394 3 BASE 34L1337-GD-B BASE PLATE 15L8022 -1 HINGE 37L-498 -1 SHIELD 85L-666-1 MAIN FRAME...
Appendix Online Support Information This section describes online technical support services available to help you repair your Acer Systems.If you are a distributor, dealer, ASP or TPM, please refer your technical queries to your local Acer branch office. Acer Branch Offices and Regional Business Units may access our website.