Acer AL2416, Service Manual

Page 1: ... 1 Acer AL2416W Service Guide Service guide files and updates are available on the CSD web for more information Please refer to http csd acer com tw ...

Page 2: ...ect to the contents hereof and specifically disclaims any warranties of merchantability or fitness for any particular purpose Any Acer Incorporated software described in this manual is sold or licensed as is Should the programs prove defective following their purchase the buyer and not Acer Incorporated its distributor of its dealer assumes the entire cost of all necessary servicing repair and any...

Page 3: ...ing To better fit local market requirements and enhance product competitiveness your regional office MAY have decided to extend the functionality of a machine e g add on card modem or extra memory capability These LOCALIZED FEATURES will NOT be covered in this generic service guide In such cases please contact your regional offices or the responsible personnel channel to provide you with further t...

Page 4: ...ed to try to correct the interference by one or more of the following measures 1 Reorient or relocate the receiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit different from that to which the receiver is connected 4 Consult the dealer or an experienced radio TV technician for help Warning Use only shielded signal cables ...

Page 5: ...ur home consult your dealer or local power company z The monitor is equipped with a three pronged grounded plug a plug with a third grounding pin This plug will fit only into a grounded power outlet as a safety feature If your outlet does not accommodate the three wire plug have an electrician install the correct outlet or use an adapter to ground the appliance safely Do not defeat the safety purp...

Page 6: ...ay find slightly uneven brightness in the screen depending on the desktop pattern you use z The LCD screen has effective pixels of 99 99 or more It may include blemishes of 0 01 or less such as a missing pixel or a pixel lit all of the time z Due to the nature of the LCD screen an afterimage of the previous screen may remain after switching the image when the same image is displayed for hours In t...

Page 7: ...BOARD 29 SAFETY 32 Chapter 2 Operating Instruction 34 CONTROLS 34 MAIN OSD MENU 35 OSD MESSAGE 37 PLUG AND PLAY 39 WHITE COLOR TEMPERATURE 40 AUDIO TECHNICAL SPECIFICATION 40 Chapter 3 Machine Disassembly and Replacement 41 DISASSEMBLY PROCEDURE 41 Chapter 4 Troubleshooting 44 TROUBLESHOOTING 44 Chapter 5 Connector Information 48 CONNECTOR INFORMATION 48 Chapter 6 FRU List 49 PART LIST 49 Chapter ...

Page 8: ...hnology to provide a performance oriented product with no radiation This will alleviate the growing health concerns It is also a space saving design allowing more desktop space and comparing to the traditional CRT monitor it consumes less power and gets less weight in addition MTBF target is 20k hours or more Comparison Chart of AL2416W Comparison Chart of AA668 AA868 AA668 AA868 Panel Normal 24 p...

Page 9: ... control Maximum unless otherwise specified User contrast control Typical unless otherwise specified User red white balance Green white balance and Blue white balance control In the center unless otherwise specified Power input 110Vac or 230Vac Ambient temperature 20 5 C 68 9 F Analog input mode 1280 x1024 60 Hz Digital input mode 1920x1200 60Hz For AA868 MEASUREMENT SYSTEMS The units of measure s...

Page 10: ... 10 LCD Panel Specification LCD Panel Model LTM240M1 L01 L00 ...

Page 11: ...min Note 3 Definition of Response time Sum of TR TF Note 4 After stabilizing and leaving the panel alone at a given temperature for 30 min the measurement should be executed Measurement should be executed n a stable windless and dark room 30 min after lighting the back light This should be measured in the center of screen Dual lamp current 13 0mA 6 5mA x2 Refer to the note 1 in the page 14 for mor...

Page 12: ... measurement setup Notes 5 Definition of Luminance of White measure the luminance of white at center point Notes 6 Definition of 9 points brightness uniformity Measuring points Refer to the Note 5 AU Bmin BUNI X 100 Bmax Samsumg ...

Page 13: ...ded with adequate response time to track any visible rate flicker component and with a voltage level output proportional To luminance intensity Test Pattern For dot inversion Driving Gray levels of foreground dots on the test panel Are G22 G32 and G45 Test Point Center point of the display area Note 8 Definition of Crosstalk Refer to the VESA STD The calculation for shadowing is made from the 2 lu...

Page 14: ...levels of step1 Gbkg and Gfg Turn on each box at a time Look for the case with the worst shadowing The box causing the worst case is the shadowing source or Bsrc Use Bsrc and the box opposite from it that lies directly in the shadow path That is the target box or Btgt Note that box Eight be either Bsrc or Btgt depending on the shadowing conditions but typically Bsrc and Btgt will be a pair of oppo...

Page 15: ...el Sync input Signal separate horizontal and vertical sync or composite sync which are TTL compatible Polarity positive and negative Interface frequency The following frequency range is generalized by supported timing If the entered mode does not match the supported timing the display optimization will not be assured Horizontal Frequency 24KHz 80KHz Vertical Frequency 49Hz 75Hz ...

Page 16: ... 50 VESA 600 72Hz 72 188 666 600 6 37 23 800x600 46 875 1056 800 80 16 160 49 5 VESA 600 75Hz 75 625 600 3 1 21 1024x768 48 363 1344 1024 136 24 160 65 XGA 60 004 806 768 6 3 29 1024x768 53 964 1328 1024 176 16 112 71 664 COMPAQ XGA 66 132 816 768 4 8 36 1024x768 56 476 1328 1024 136 24 144 75 VESA 768 70Hz 70 069 806 768 6 3 29 1024x768 60 023 1312 1024 96 16 176 78 75 VESA 768 75Hz 75 029 800 76...

Page 17: ...resh rate mode as emergency mode Monitor should display Out of Range warning menu at this mode Video input Connector Analog Video input Connector 15pins mini D Sub Table 2 4 5 Pin assignment for D sub connector PIN NO Separate Sync 1 RED VIDEO 2 GREEN VIDEO 3 BLUE VIDEO 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 PC5V 5V DDC 10 CABLE DETECTION 11 GROUND 12 SDA 13 H SYNC 14 V SYNC...

Page 18: ...and the power of the monitor is switched on no voltage may occur at pin 14 Pin Assignment of DVI D connector 1 TX2 9 TX1 17 TX0 2 TX2 10 TX1 18 TX0 3 Shield TX2 TX4 11 Shield TX1 TX3 19 Shield TX0 TX5 4 NC 12 NC 20 NC 5 NC 13 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 Color of plastic parts Blue PC99 ...

Page 19: ...board key 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 provide thr 12V DC power to inverter power board Power board include AC DC inverter ...

Page 20: ... 20 BLOCK DIAGRAM System Block Diagram ...

Page 21: ...EPROM SOIC 8 24C02 CN2 D SVB 15 PIN U5 GM1601 CN5 P TWO AFN300 N2G1Z 30P P1 90D U8 HY5DU283222AF CN7 E T 4300 09 9P P1 25 U9 AIC 1084 33V CN8 E T 4500 12 12P P2 0 U10 APL1117 1 8V CN9 E T 4500 12 12P P2 0 U11 APL1117 25V U13 APL5883 33DC XU1 FL 512K8 PLSST39VF040 ...

Page 22: ... 22 Software flow chart ...

Page 23: ...By changing these settings the picture can be adjusted to your personal preferences z The power cord should be connected z Connect the video cable from the monitor to the video card z Press the power button to turn on the monitor position The power indicator will light up External Controls 1 Auto Adjust Key Exit 4 MENU ENTER 2 5 LED 3 6 Power Key ...

Page 24: ...ct one end of the signal cable to the LCD Monitor s VGA port z Connect the other end of the signal cable to the VGA port on your PC z Make sure connections are secure Connecting the AC Power z Connect the power cord to the LCD Monitor z Connect the power cord to an AC power source ...

Page 25: ...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 Hinge Cover concavity 0mm B 0 5mm ...

Page 26: ... 26 Base Neck concavity 0mm C 0 6mm Top and Bottom Left and Right Back cover Bezel step Back cover Bezel step 0mm D 0 8 mm 0mm D 0 8 mm ...

Page 27: ... 27 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 ...

Page 28: ...S Back Cover PC ABS The Others ABS 94HB For MPRII Front Bezel ABS 94V 0 Back Cover ABS 94V 0 The Others ABS 94HB GAP Spec Gap between panel with bezel is 0 mm gap 1 5 mm Swivel title noise spec When adjust the monitor angle the range should be limited 5º 15º and it should not have any noise ...

Page 29: ... AC Inlet HUAJIE SA 4S 066 or compatible Output Connector Pin Assignment 1 CNS1 to logic board type E T 4500 or equivalent PIN NO Function Function 1 5Vstb 5Vdc for standby output 2 GND Power Ground 3 GND Power Ground 4 GND Power Ground 5 5Vcc 5Vdc connected to main board 6 5Vcc 5Vdc connected to main board 7 5Vcc 5Vdc connected to main board 8 12Vcc Audio power N A option 9 GND Signal ground 10 P...

Page 30: ... 11 13 Dimmer Brightness control connected to CN1 12 bright max 3 3V min 0V 14 N C N C 2 Inverter side connecter YEONHO 20015 HS 04L or equivalent PIN NO Function Comment 1 1 Hot1 High voltage 1 2 N C 1 3 N C 1 4 Hot2 High voltage PIN NO Function Function 1 5Vaudio Audio power optional 2 GND Audio ground 3 GND Ground 4 GND Ground 5 Vbri Brightness control from logical board 0V to 3 3V 6 7 Ven Inve...

Page 31: ...4 Overshoot 10 or less Full Load 3 4 1 5 Dynamic Loading 5 or less Full Load 3 4 1 6 Efficiency 75 min at full load condition INVERTER BOARD DESIGNED FOR SAMSUNG LTM240M L01 MIN TYP MAX COMMENT INPUT VOLTAGE 22 8V 24V 25 2V 24V 5 INPUT CURRENT 3 3A Vin 24V Vbrite 3 3V Normal BACKLIGHT VOLTAGE 1800Vrms LAMP CURRENT every lamp 6mArms 7mArms Each CCFL DRIVING FREQUENCY 40KHz 60KHz EFFICIENCY 75 Vin 2...

Page 32: ...tate requires no manual power on Mode H Sync V Sync Video Pw cons Indicator Rec time Power On on on active 110W Green LED DPMS off off off blanked 2 W Orange LED 5S DC Switch off 1 W 100VAC Dark LED SYNC On means Normal operation SYNC Off means H sync F 10KHz duty cycle 25 V sync F 10Hz duty cycle 25 CONNECTORS CONTROLS Connectors Power Monitor rear side AC Inlet Analog RGB Monitor rear side Data ...

Page 33: ... 33 Monitor Control Keys KEY Power Menu Adjust Vol Auto Position Of Controls Position of all switches Bottom side of front bezel Position of LED Bottom side of front bezel ...

Page 34: ...S Control panel monitor front panel 1 Power ON OFF switch push to ON and push to OFF toggle switch 2 Power LED will be green when monitor is on be amber when in power saving mode 3 Function select 4 Adjust increase 5 Adjust decrease 6 Auto adjust ...

Page 35: ...0 100 Do Auto Config Clock Adjust picture Clock to reduce Vertical Line noise 0 100 Do Auto Config H Position Adjust the horizontal position of the picture 0 100 Do Auto Config V Position Adjust the verticalposition of the picture 0 100 Do Auto Config Warm N A Recall Warm Color Temperature from EEPROM N A Cool N A Recall Cool Color Temperature from EEPROM N A The Color Temperature will be set to C...

Page 36: ...display language to Japanese N A The Language will be set to English H Position Adjust the horizontal position of the OSD 0 100 50 V Position Adjust the verticalposition of the OSD 0 100 50 OSD Timeout Adjust the OSD timeout 10 120 10 Auto Config N A Auto Adjust the H V Position Focus and Clock of picture N A N A N A Source Change Analog and Digital source change option N A N A Information N A Sho...

Page 37: ...ort range will show this message This message will be flying Cable Not Connected When the video cable is not connected will show this message This message will be flying No Signal When the video cable is connected but the is no active signal input will show this message then enter power saving LOGO When the monitor is power on the LOGO will be showed in the center Item of Factory menu Vendor may c...

Page 38: ...o adjust is depends on hardware Adjusted value of R G B gain shall be used for initial value of Contrast in user menu All value shall be adjustable manually This function shall be located in 3 tag of Factory menu 3 Factory color temp data edit Following data for color temp shall be editable manually color temp default preset No ...

Page 39: ...esent When there is no video input signal this monitor following a time out period will automatically switch to an OFF mode This reduces the monitor s internal power supply consumption After the video input signal is restored full power is restored and the display is automatically redrawn The appearance is similar to a Screen Saver feature except the display is completely off The display is restor...

Page 40: ...iquid Crystal Display OEM s http www microsoft com hwdev tech color ColorTest asp Electrical characteristics Tamb 25 Audio amplifier USE Panasonic VP 7723A Audio Analyzor Spec Item Audio Input Freq Min Typ Max Comment Input Voltage V 0 5Vm s Input Current m A 500 800 Audio Voltage Gain 500m Vrms 1KHz 6 d B Volume Max load 4 Ω Frequency Response 500m Vrms 300Hz 20KH z 10dB 10d B Volume Max load 4 Ω...

Page 41: ... 3 Remove the base Disassemble the chassis 1 Remove the five screws to release the back cover 2 Remove the two screws to release the EMI cover from chassis 3 Remove the Main Board Power Board Inverter and Key Board See the next page for detail 4 Remove the six screws from chassis then take the chassis 5 Remove the four screws from chassis and release the panel ...

Page 42: ...mble the power board 1 After remove main board then disassembly the power board 2 Remove the three screws from power 3 Remove the four screws from power 4 5 Disassemble two voltage lines from power board 6 Remove the one screw to release line from Chassis 7 Remove the three screws from Chassis 8 Remove the two screws to release power board from Chassis 9 Then take the power board from the chassia ...

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Page 44: ...44 Chapter 4 Troubleshooting Main Procedure ...

Page 45: ...45 Power Circuit and Backlights Troubleshooting ...

Page 46: ...46 Performance Troubleshooting ...

Page 47: ...47 Function Troubleshooting ...

Page 48: ...ector 15pins mini D Sub Table 2 4 5 Pin assignment for D sub connector PIN NO Separate Sync 1 RED VIDEO 2 GREEN VIDEO 3 BLUE VIDEO 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 PC5V 5V DDC 10 CABLE DETECTION 11 GROUND 12 SDA 13 H SYNC 14 V SYNC 15 10 5 1 6 11 15 SCL ...

Page 49: ...om tw spl For whatever reasons a part number change is made it will not be noted in the printed Service Guide For ACER AUTHORIZED CERVICE PROVIDERS your Acer office may have a DIFFERENT part number code to 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 repair and service of customer machines NOTE To...

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Page 51: ...SET AA668 POW INV 14P 1 304 3 DC0201934R0 H CON SET AA668 POW LOG 12P 1 305 4 DC020193500 H CON SET AA668 CTRL KEY 9P 8P 1 306 5 DC020193700 H CON SET AA668 CTRL PANEL POWER 12P 1 307 6 NBX30000263 FFC 30P F P1 0 PAD1 0 AA668 SUM24 1 308 7 PK07V0033R0 INVERTER AA668 24 TBD292LF TDK 1 309 8 PK101V0110I PWR MODU FSP130 4F01GP 5V 12V 24V DV89A 1 310 9 461ACY30001 FIRMWARE CTRL B VL 2401 LAA668A ABO 1...

Page 52: ...52 Part list No Photo Part Name Part No 1 Hinge Cover FAAA6622000 2 Base FAAA661A000 3 BACK Cover ASSY FAAA6613000 4 STAND FAAA6610000 5 EMI COVER ASSY EEAA6617000 ...

Page 53: ...53 6 MB 461ACY30001 9 Power Board to MB cable AU 453AC530051 Samsung 453AC530051 7 Power Board PK101V0110I 8 Inverter Board PK07V0033I0 9 Front Bezel ASSY FAAA6611000 10 Keyboard to MB Cable DC020193500 ...

Page 54: ...54 13 Frame ECAR9915A00 14 LCD R AC6VA2400R0 15 Panel to MB cable NBX30000263 16 Function Board 454AC830011 ...

Page 55: ...55 Chapter 7 Schematic Diagram ...

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