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Acer AL1516W Service Manual
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Acer AL1516W Service Manual

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ACER
ACER_LCD_AL1516W_SM07101201V1
Service
Model ID: MA15WAANU
Service Manual

Table of Contents

Important Safety Notice------------------------------------------------------------------------------------- 01
01. Product Specification--------------------------------------------------------------------------------- 02
02. OSD Menu-----------------------------------------------------------------------------------------------08
------------------------------------------------------------------------------------- 10
04. Assembly and Disassembly Procedures-----------------------------------------------------------12
05.
Troubleshooting----------------------------------------------------------------------------------------20
06. Schematics and Layouts------------------------------------------------------------------------------ 30
Appendix I : User's Manual
Appendix II : Spare Parts Llist
Safety Notice
Any person attempting to service this chassis must familarize with the chassis and be aware of the
necessary safety precautions to be used when serving electronic equipment
containing high voltage.
Published by LITE-ON Service Printed in Taiwan © All rights reserved Subject to modification
12th-Oct-2007

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Summary of Contents for Acer AL1516W

  • Page 1: Table Of Contents

    ACER ACER_LCD_AL1516W_SM07101201V1 Service Model ID: MA15WAANU Service Manual Table of Contents Important Safety Notice------------------------------------------------------------------------------------- 01 01. Product Specification--------------------------------------------------------------------------------- 02 02. OSD Menu-----------------------------------------------------------------------------------------------08 03. Exploded Diagram ------------------------------------------------------------------------------------- 10 04. Assembly and Disassembly Procedures-----------------------------------------------------------12 Troubleshooting----------------------------------------------------------------------------------------20 06. Schematics and Layouts------------------------------------------------------------------------------ 30 Appendix I : User’s Manual...

  • Page 2: Important Safety Notice

    Important Safety Notice ACER AL1516W Go to cover page Product Anouncement: This product is certificated to meet RoHS Directive and Using Lead-Free solder to well mounted the parts. ! The fusion point of Lead-Free solder requested in the Lead-Free produced definition. Using approved critical components only is recommended when the situation degree of 220 C.

  • Page 3: Product Specification

    ACER AL1516W 1. Product Specification Go to cover page The LCD monitor consists of an interface board , a power board 1.1 SCOPE , a function key board and two speaker (1W)(with audio) This document defines the design and performance requirements for an 15”...
  • Page 4 ACER AL1516W 1. Product Specification (continued) Go to cover page 1.3.2.4 Sync Signal Levels C o nne c to r P in A s s ig nm e nt D S U B The monitor must accept sync signals from both 3.3 and...
  • Page 5 ACER AL1516W 1. Product Specification (continued) Go to cover page 1.3.4.2 Factory Assigned Display Modes 1.3.3.3 On-Screen Display There are 17 factory pre-set frequency video The Lite-ON On Screen Display system shall be modes. These modes have a factory pre-set for all used , controlled by a Menu button.
  • Page 6 ACER AL1516W 1. Product Specification (continued) Go to cover page T able 2 1.3.5 Controller Requirements A C to D C C onverter R equirem ents The operating range shall be from 90 to 132 and 195 to 265 A V C 1.3.5.1 General Requirements...
  • Page 7 ACER AL1516W 1. Product Specification (continued) Go to cover page 1.4.3 Polarizer Hardness 1.4.5.3 Light Leakage The outer face of the front polarizer panel shall be Except for the active display area , there shall be no light emission visible from any angle from any other part covered with a coating with a # 3 hardness value of the display .
  • Page 8 ACER AL1516W 1. Product Specification (continued) Go to cover page 1.4.5.8 LCD Inspection Put LCD panel on inspection table and illuminate the panel with a daylight fluorescent lamp located above the panel surface such that the luminance at the LCD panel is between 1000 lux and 1500 lux .Defect limits are given in Table 4 .

  • Page 9: Osd Menu

    ACER AL1516W 2 OSD Menu Go to cover page 2.1 MAIN OSD MENU Outline: The description for control function: M a in S u b S u b M e n u A d ju s tm e n t...
  • Page 10 2. OSD Manu (continued) ACER AL1516W Go to cover page...

  • Page 11: Exploded Diagram

    BRACKET CHASSIS BASE ASSY 7748713920P0A BRACKET CHASSIS BASE 7746504790P0A INSULATOR-TOP 7110330052P0A SCREW(FIXED PANEL) 7737612100P0A REAR COVER ASSY REAR COVER 7742238600P0A TAPE PACKING ACER LOGO 7749600940P0A POWER PCB 5114301021P 7111230061P0A SCREW(FIXED POWER BD) 7116240081P0A SCREW(FIXED GROUND) 5113302551P INTERFACE PCB 7111230061P0A SCREW(FIXED INTERFACE BD)
  • Page 12 ACER AL1516W 3. Exploded Diagram (continued) Go to cover page 3.2 Product Exploded Diagram...

  • Page 13: Assembly And Disassembly Procedures

    ACER AL1516W 4. Assembly and Disassembly Procedures Go to cover page 4.1 Assembly procedures: Use a Phillips-head screwdriver screwed the Connect the cable between power board(P802) No.1~3 screws till that interface board and bracket and interface board (P301) chassis base firmly attached.
  • Page 14 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page Plug 2 lamp cables to the connectors of power Turn the monitor faced down and put it on the board. Bracket Chassis module till both parts firmly Connect FFC cable to LCD panel. There are...
  • Page 15 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page Assemble the stand upper side to the rear cover Use a Hex-head screwdriver screwed the through the way of screwing 4 screws till both D-SUB connectors (No.1~2 Hex Nut screws units firmly attached.
  • Page 16 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page Move previous assembled parts into the carton then Take a LDPE+EPE bag to cover the LCD stick Vista on the carton then packing the carton monitor. VISTA LABEL Take two cushion foams;...
  • Page 17 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page 4.2 Disassembly procedures ut returned unit on a protective cushion,then Open the carton with a proper tool. remove LDPE+EPE bag. Tear off tapes to remove the screen protector...
  • Page 18 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page Use a Phillips-head screwdriver unscrewed the key Place cloth on the panel where you are working function board from rear bezel No.1~2 screws on to protect the panel. Continuously, wedge (No1~2 screw size=M3x6;...
  • Page 19 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page Disconnect the FFC cable to the connector of Use a Phillips-head screwdriver unscrewed the panel. No.1~4 screws to disassemble the LCD panel Use finger to push the lock according to arrow and bracket chassis module.
  • Page 20 ACER AL1516W 4. Assembly and Disassembly Procedures (continued) Go to cover page Use a Phillips-head screwdriver unscrewed the No.1~4 screws to disassemble the power board. (No 1~3 screw size=M3x6; No 4 screw size=M4x8; Torque=7~9KGFxCM). Disconnect the FFC, P301, P802 and function key cables to connectors of interface and power board.

  • Page 21: Troubleshooting

    ACER AL1516W 5. Troubleshooting Go to cover page 5.1 No.display of screen (Screen is black, color of LED is amber) Does OSM display when you push PROCEED buttom. Proceed "No OSM display" section. When a signal isn't being inputted, it is indicated with "No Signal Input".
  • Page 22 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.2 Nothing display on screen (screen is black, color of LED is blue) Is backlight lit? Refer "Checking the backlight unit" section" Check the video cable for failure. Check Is backlight lit? the host for output signal is all black or not.
  • Page 23 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.2 Nothing display on screen (screen is black, color of LED is blue) continued Continue Check the 3V3 power supply for P304 pin 27, 28, Check the D326 pin1 Proceed "Checking the DC/DC if voltage is 1.8V...
  • Page 24 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.3 Checking the back light unit Is +20V supplied to inverter PWB ? (by the power board) Failure Point Power board of Inverter part failure. Check the BKLT_EN signal of the DC input P301 pin1 at TTL high level.
  • Page 25 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.4 Abnormal screen for VGA Check the R, G, B video signal from computer input on P302 of video connector. Failure Point 1) No R, G, B video signals output from host computer, check computer.
  • Page 26 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.5 Abnormal OSM display adjust problem Check the input TTL level whether was changed when pressed function keys on the P306 pin 4, 5 Failure Point (normal is high level, when push buttom, generated low level plus) 1) Function key wire disconnection.
  • Page 27 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.6 Abnormal plug and play operation for VGA Confirm the host computer supplies DDC2B mode. Failure Point The host machine is not communicatiog in DDC2B mode. Check the voltage on P302 pin9 that is power DC 5 V.
  • Page 28 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.7 Checking the interface circuit of sync signal 5.7.1 Checking the control circuit of horizontal sync pulse Check the horizontal sync signal on P302 pin13 TTL level. Failure Point Video cable is failure.
  • Page 29 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.8 Checking the resolution change IC movement Check +3.3V supply on I305 pin8, pin14, pin16, pin24 , pin32, pin49, pin56, pin75, pin98 1) Power wire disconnection 2) Power board is failure 3) Checking FB311 and FB315 Check +1.8V supply on I305 pin...
  • Page 30 ACER AL1516W 5. Troubleshooting (continued) Go to cover page 5.9 Checking the DC/DC converter circuit Check the 3.3V is output from P301 pin 4,5. Failure Point 1) Power wire disconnection 2) Power board is failure Check the 3.3V is input to Q305 pin1.

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