Acer AL1916 AL1916p Service Guide

Acer AL1916 Manual

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  • Acer AL1916 | AL1916p Service Guide - Page 1
    Acer AL1916p Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ - 1 -
  • Acer AL1916 | AL1916p Service Guide - Page 2
    , manual or otherwise, without the prior written permission of Acer Incorporated. Disclaimer The information in this guide is subject to change without notice. Acer Incorporated makes no representations or warranties, either expresses or implied, with respect to the contents hereof and specifically
  • Acer AL1916 | AL1916p Service Guide - Page 3
    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. You MUST use the list provided by your regional Acer office to order FRU parts for repair and
  • Acer AL1916 | AL1916p Service Guide - Page 4
    . However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, Which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference
  • Acer AL1916 | AL1916p Service Guide - Page 5
    If you are not sure of the type of power supplied to your 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
  • Acer AL1916 | AL1916p Service Guide - Page 6
    SPECIAL NOTES ON LCD MONITORS The following symptoms are normal with LCD monitor and do not indicate a problem. NOTES z 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. z
  • Acer AL1916 | AL1916p Service Guide - Page 7
    AUDIO TECHNICAL SPECIFICATION ...45 Chapter 3 Machine Disassembly and Replacement 47 DISASSEMBLY PROCEDURE ...47 Chapter 4 Troubleshooting 50 TROUBLESHOOTING ...54 Chapter 5 Connector Information 55 CONNECTOR INFORMATION ...58 Chapter 6 FRU List 59 PART LIST...55 Chapter 7 Schematic Diagram 60
  • Acer AL1916 | AL1916p Service Guide - Page 8
    Chapter 1 Scope This specification defines the requirements for the 19" MICRO-PROCESSOR based Multi-mode supported high resolution color LCD monitor. This monitor can be directly connected to general 15 pin D-sub VGA connector and eliminates the requirement of optional special display card. It also
  • Acer AL1916 | AL1916p Service Guide - Page 9
    /(m2) = Ft-L x 3.426 lux = foot-candle x 10.76 LCD monitor General specification Panel Type: 19 " active matrix color TFT LCD 1). LG LM190E03-B4 2). LG LM190E03-B4N9 3). Samsung LTM190EX-L01 4). AU M190EN04 V5 Display size: Display mode: Pixel pitch: 376.32mm (H) × 301.056mm(V) VGA 720
  • Acer AL1916 | AL1916p Service Guide - Page 10
    Pixel Clock: Contrast ratio: θ = 0˚ Brightness: Response time (Tr/Tf): Display color: Viewing angle(CR>10): Luminance Uniformity: 1280 x (RGB) × 1024 Samsung L / R ≧ 75 / ≧ 75 U / D ≧ 75 / ≧ 60 AU L / R ≧ 70 / ≧ 70 U / D ≧ 75 / ≧ 60 LG < 1.3 (max) Samsung < 25 % (max) AU >70% (min) - 10 -
  • Acer AL1916 | AL1916p Service Guide - Page 11
    LCD Panel Specification LCD Panel Model (AU-M190EN04(V5)) • Display Type active matrix color TFT LCD • Resolution 1280 x 1024 pixels • Display Dot 1280 x (RGB) x 1024 • Display Area 376.32mm(H) x 301.06mm(V) • Pixel Pitch 0.098x3mm(H) x 0.294mm(V) • Display Color 16777216 • Lamp
  • Acer AL1916 | AL1916p Service Guide - Page 12
    • Optical Specifications The following screen) Red Color Green Chromaticity (CIE 1931) Blue White Hor. Viewing Angle Ver. Brightness Uniformity (9 points) Symbol CR TR TF YL Rx Ry Gx Gy Bx By Wx Wy θ L θ R φ H φ L BUNI Condition Normal φ = 0˚ θ = 0˚ Viewing Angle CR≥10 Min. Typ. Max
  • Acer AL1916 | AL1916p Service Guide - Page 13
    2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel ,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 more information
  • Acer AL1916 | AL1916p Service Guide - Page 14
    Optical characteristics 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 BUNI= Samsumg Bmin X 100% Bmax BUNI= Bmax-Bmin X 100% Bmax
  • Acer AL1916 | AL1916p Service Guide - Page 15
    levels to determine the proper value for the background .Next display the box levels to determine the proper value for the background (the target) will be measured. To determine that point proceed as follows Using the background and foreground gray levels of step1 (Gbkg and Gfg). Turn on each box at
  • Acer AL1916 | AL1916p Service Guide - Page 16
    Next,turn on the source box Bsrc. Again measure at the center point of Btgt (without Btgt present.). In this case the LMD will be measuring the shadowing level, Lsh. Panel Relative Humidity Input Signals Video input • Type • Input Impedance • Polarity • Amplitude • Display Color Sync input • Signal
  • Acer AL1916 | AL1916p Service Guide - Page 17
    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 - 17 -
  • Acer AL1916 | AL1916p Service Guide - Page 18
    Supported Timing TIMING 640x350 VGA-350 640x400 NEC PC9801 640x400 VGA-GRAPH 640x400 NEC PC9821 640X480 VESA-PAL 640x480 VGA-480 640x480 APPLE 78.75 80 80 94.499 108.00 108.00 126.00 135.00 108 135 Note: Mode 640x350, 640x400 and 720x400 will locate on middle position but cannot be expanded to full
  • Acer AL1916 | AL1916p Service Guide - Page 19
    There will be 28 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. Video input
  • Acer AL1916 | AL1916p Service Guide - Page 20
    of plastic parts: Blue (PC99) 1 6 11 D-sub connector Digital Video Input Connector : DVI - D (T.B.D) Table 2.4.6 Pin assignment for DVI - D Connector: 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
  • Acer AL1916 | AL1916p Service Guide - Page 21
    The LCD monitor will contain an main board, an inverter/ power 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
  • Acer AL1916 | AL1916p Service Guide - Page 22
    BLOCK DIAGRAM System Block Diagram 1. - 22 -
  • Acer AL1916 | AL1916p Service Guide - Page 23
    2. - 23 -
  • Acer AL1916 | AL1916p Service Guide - Page 24
    3. - 24 -
  • Acer AL1916 | AL1916p Service Guide - Page 25
    Monitor board layout 1. LABEL U1 U2 U3 U4 U5 U6 U7 U8 U9 U10 Component 24LC21A 24LC21A TSU56AJ or TSU16AJ MX10E8050IAQC MAX810 24LC16B APM4461 APL1085-33CE APL1117-1.
  • Acer AL1916 | AL1916p Service Guide - Page 26
    2. LABEL U3 U4 U5 U6 U10 U13 U14 U501 Component SN74LVC14 NT68F633 24LC16B NT68521 APL1085-33CE APL1117-2.5 SI9435 LM4838 LABEL CN1 CN3 CN9 CN301 CN302 J1 Component D-SVB 15 PIN E&T 96113-0803 E&T 4500-10 E&T 96113-1103 E&T 4500-03 P-TWO AFN300-N2G1Z - 26 -
  • Acer AL1916 | AL1916p Service Guide - Page 27
    Software flow chart - 27 -
  • Acer AL1916 | AL1916p Service Guide - Page 28
    , 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
  • Acer AL1916 | AL1916p Service Guide - Page 29
    Display z Power off your computer. z Connect 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
  • Acer AL1916 | AL1916p Service Guide - Page 30
    Gap Spec. The step between front bezel and back cover shall be within specification. Top and Bottom Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm Left and Right Back cover & Bezel concavity 0.8mm ≤ A ≤ 1.3 mm Back Cover & Hinge Cover concavity 0mm ≤ B ≤ 0.5mm - 30 -
  • Acer AL1916 | AL1916p Service Guide - Page 31
    Base & Neck concavity 0mm ≤ C ≤ 0.6mm Top and Bottom Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm Left and Right Back cover & Bezel step 0mm ≤ D ≤ 0.8 mm - 31 -
  • Acer AL1916 | AL1916p Service Guide - Page 32
    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. - 32 -
  • Acer AL1916 | AL1916p Service Guide - Page 33
    Material For TCO99 Front Bezel PC+ABS 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
  • Acer AL1916 | AL1916p Service Guide - Page 34
    Board Description This specification defined the performance and characteristic of power/inverter board. It supplies the following outputs : 1). 5Vdc: Logic power. 2). 5Vaudio: Audio power. 3). 15Vinv: Inverter power. Features Input Voltage: 100 ~ 240 ±10％Vac Input Frequency: 47 ~ 63Hz Input power
  • Acer AL1916 | AL1916p Service Guide - Page 35
    : AC-DC Electrical specification 3.4.1.1 Input Specification No Item Condition 1 Input Voltage ----- 2 Input requency ----- 3 Input Current 4 Inrush Current 5 Hold Up Time ----Cold Start @Vin=100Vrms Cold Start @Vin=240Vrms @full load & 100Vac input 6 Turn on time Vin =110Vac
  • Acer AL1916 | AL1916p Service Guide - Page 36
    be protected when output power consumption is within 60W ~ 75W Inverter Electrical Specification: For Samsung LTM190EX Condition Min. Input Voltage --- --- Input Current --- --- Backlight ON/OFF Control ON OFF Brightness Adjust Min. Luminance / Max. --- Luminance Output Voltage Vin
  • Acer AL1916 | AL1916p Service Guide - Page 37
    Striking Time --- --- 1 --- S Lamp Current Balance --- --- ±0.35 --- mA Efficiency Vin=15V --- 80 --- % Operating Life Time --- 50000 --- --- Hr *.The open lamp voltage is testes at output connector terminal SAFETY Leakage Current: 0.25mA @ 100Vac Insulation Resistance: more
  • Acer AL1916 | AL1916p Service Guide - Page 38
    On-state to any power saving state to avoid unintentionally entering of a power saving stage during display resolution and timing mode changes. Transition from any power saving state to another can be instantaneous. The recovery from Off-state requires no manual power on. Mode H-Sync. V-Sync
  • Acer AL1916 | AL1916p Service Guide - Page 39
    Chapter 2 Operating Instructions CONTROLS 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
  • Acer AL1916 | AL1916p Service Guide - Page 40
    100 Brightness Backlight Adjustment 0-100 Focus Clock H. Position V. Position Warm N/A Cool N/A User / Red Reset Value Recall Cool Contrast Value Recall Cool Brightness Value Do Auto Config Do Auto Config Do Auto Config Do Auto Config The Color Temperature will be set to Cool. 100 User
  • Acer AL1916 | AL1916p Service Guide - Page 41
    Source Change Analog and Digital source change.(option) N/A The Language will be set to English. 50 50 10 N/A N/A Information N/A Show the resolution, H/V frequency N/A N/A and input port of current iput timing. Reset N/A Clear each old status of N/A N/A Auto-configuration and set the
  • Acer AL1916 | AL1916p Service Guide - Page 42
    Config Please Wait Input Not Supported Cable Not Connected No Signal Description When User Press Hot-Key "Auto", will show this message, and the monitor do the auto config function. When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor support range, will show this message
  • Acer AL1916 | AL1916p Service Guide - Page 43
    Brightness and Contrast value to Max. 2) Auto Balance Adjust each R, G, B contrast (gain) and offset. Method of auto 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
  • Acer AL1916 | AL1916p Service Guide - Page 44
    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
  • Acer AL1916 | AL1916p Service Guide - Page 45
    0X A.2.6.1 requirement User should follow "Microsoft Windows Color Quality Specification for Liquid Crystal Display OEM's". (http://www.microsoft.com/hwdev/tech/color/ColorTest.asp) Audio Technical specification General Description: Output power Total harmonic distortion Input signal sensitivity
  • Acer AL1916 | AL1916p Service Guide - Page 46
    talk Output Watt. Volume Control Audio Input Freq. Spec. Comment Min. Typ. Max. - 0.5Vm - s - 500 800 500m Vrms 1KHz - - 6 d B Volume Max.,load 4 Ω 500m Vrms 300Hz-20KH -10dB - +10d B Volume Max.,load 4 Ω z 500m Vrms 1KHz - - -40dB Volume Max.,load 4 Ω 500m Vrms 1KHz 1% except
  • Acer AL1916 | AL1916p Service Guide - Page 47
    the base 1. Remove the neck cover. 2. Remove the four screws to release the hinge. 3. Remove the base Disassemble the chassis 1. Remove the four screws to release the back cover. 2. Remove the two screws to release the EMI cover from chassis. 3. Remove the two
  • Acer AL1916 | AL1916p Service Guide - Page 48
    the one screw to release line from Chassis. 6. Remove the three screws from Chassis and release the main board. Disassemble the power board 1. Disassemble two voltage lines from power board. 2. Remove the one screw to release line from Chassis. 3. Remove the three screws from Chassis. 4. Remove the
  • Acer AL1916 | AL1916p Service Guide - Page 49
    Disassemble the speakers 1. Remove the two screws to release line and VK board from bezel. 2. Remove the two screws to release line and chassis from bezel. 3. Remove the four screws from bezel. 49
  • Acer AL1916 | AL1916p Service Guide - Page 50
    Troubleshooting Main Procedure Chapter 4 50
  • Acer AL1916 | AL1916p Service Guide - Page 51
    Power Circuit and Backlights Troubleshooting 51
  • Acer AL1916 | AL1916p Service Guide - Page 52
    Performance Troubleshooting 52
  • Acer AL1916 | AL1916p Service Guide - Page 53
    Function Troubleshooting 53
  • Acer AL1916 | AL1916p Service Guide - Page 54
    Phonejack stereo PIN1. right PIN2. Left PIN3. Gnd : CEE22 typed connector : Line-in receptacle J1 1 2 3 PHONEJACK STEREO Video input Connector Analog Video input Connector: 15pins mini D-Sub Table 2.4.5. Pin assignment for D-sub connector Chapter 5 Separate Sync 5 10 15 PIN NO. 1 1 RED
  • Acer AL1916 | AL1916p Service Guide - Page 55
    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
  • Acer AL1916 | AL1916p Service Guide - Page 56
    56
  • Acer AL1916 | AL1916p Service Guide - Page 57
    Part list No. 1 Photo 2 Part Name Hinge Cover Part No. FAAA6932000 Base Assy FAAA691D000 3 Rear Cover FAAA6914000 4 Base FAAA691C000 6 Neck FAAA6921000 57
  • Acer AL1916 | AL1916p Service Guide - Page 58
    7 Main Shield ECAR9914A00 AU:461ACQ30011 8 MB SAMSUNG:461ACQ30001 9 Power Board to MB cable AU: 453AC530051 Samsung: 453AC530051 AU: 453AC530051 10 Inverter Board Samsung: 453AC530051 11 Front Bezel FAAA6911000 12 Keyboard to MB Cable DCO20191700 58
  • Acer AL1916 | AL1916p Service Guide - Page 59
    13 Frame ECAR9915A00 14 LCD (R) AC6VA1901R0 AC6VT1901R5 15 Panel to MB cable NBX30001271 NBX30001600 16 Function Board 454AC830001 59
  • Acer AL1916 | AL1916p Service Guide - Page 60
    Schematic Diagram 5 4 3 VGA INPUT INTERFANCE R1 390 1 2 C1 0.01uF 12 CN 1 L1 0 R2 56.2 1% C2 _D A L C208SC6 5 4 3 2 C B *All Res. andCap. size is 0603. A *The mark "#" toindicate that Part disuse. PCB Name-Rev :VL922-0A CO M PA L E LEC TRO N ICS, INC." Ti tle S c he ma
  • Acer AL1916 | AL1916p Service Guide - Page 61
    .1 u F ) 21 RX1- 5 RX1+ 5 RX0RX0+ GND RX5RX5+ GND RXC+ RXC- 17 18 19 20 21 22 23 24 RX0- _IN R X 0+_IN RXC+_I N R XC- _IN RX0- 5 6 V) 1 A *All Res. andCap. size is 0603. A *The mark "#" toindicate that Part disuse. PCB Name-Rev :VL922-0A COM PAL E LECTRON IC S, INC." Ti tle S c
  • Acer AL1916 | AL1916p Service Guide - Page 62
    AVSS_PLL AVSS_PLL AVSS AVSS 56 62 66 73 83 95 101 106 113 57 63 84 112 5 11 17 125 19 34 A *All Res. andCap. size is 0603. A *The mark "#" toindicate that Part disuse. PCB Name-Rev :VL922-0A COM PAL E LECTRON ICS, INC." Ti tle S c he ma tic, CTRL/ B VL922, LAA698
  • Acer AL1916 | AL1916p Service Guide - Page 63
    19 RESET ACTIVE HIGH /RESET D IO/MA730 2 GN D R ESET 21 E EPROM C49 0 .1u F U6 SO-8 1 2 3 4 NC VCC NC WC NC SCL GND SDA 8 7 6 5 ST_M24C16-WMN6T VDD 1 1 R62 2.2K R63 2.2K 2 2 WP SC L SD A 4 K EY BOARD is 0603. A *The mark "#" toindicate that Part disuse. C OM PAL E LEC TR ONIC
  • Acer AL1916 | AL1916p Service Guide - Page 64
    5 4 3 2 1 D LCD PANEL POWER CONTROL (Main) PAN5V 8 PAN5V 1 21 13 14 TXA1- 15 TXA1+ 16 17 TXA2- 18 TXA2+ 19 TXACLK- 20 TXACLK+ 21 TXA3- 22 TXA3+ 23 24 SEL to indicate that Part disuse. PCB Name-Rev :VL922-0A A A COMPAL ELECTRONICS, INC." Title Schematic, CTRL/B VL922,
  • Acer AL1916 | AL1916p Service Guide - Page 65
    5 4 3 2 1 E&T 4500-10 C 4 3 2 1 VCC VDD 3/19 Modify + C56 PAN5V L9 JKMT_B201212K800TM PAN5V 7 C57 VCC R120 0# R121 0 VDD IN 65 A A PCB Name-Rev :VL922-0A COMPAL ELECTRONICS, INC." Title Schematic, CTRL/B VL922, LAA698 Size Document Number B 401ACQ Rev 0A Date: Friday,
  • Acer AL1916 | AL1916p Service Guide - Page 66
    100K 1 CTIMR NDRV_B 20 1S D8 22p/3KV R9 30 3M Q903 C903 104 2 OVP PDRV_A 19 2S D7 C 918 * C9 31 22p/3KV 2 R K700 2 C904 474 3 ENA *The mark "#" to indicate that Part non-use PCB Name-Rev : VP-761 COMPAL ELE CTRONICS,INC. Tit le SCHEMATIC, POWER/B VP-761, LYP777/LYP999 Size A2
  • Acer AL1916 | AL1916p Service Guide - Page 67
    5 4 3 2 D Au t o Me n u S5 S4 S3 S2 Power S1 J1 KEY-AUTO 8 KEY -VAL-DEC 7 KEY-VAL -INC 6 KEY -F UN+ 5 KEY-ONOFF B 67 *The mark "#" to indicate that Part disuse. PCB Name-Rev : VK922-0 Page_2 A COMPAL ELECTRONICS, INC. A Title SCHEMATIC, KEY/B VK-922, LAA698 Size Document Nu

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