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Acer AL1732 Service Manual

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Acer AL1732
Service Guide
Service guide files and updates are available on the
CSD web: for more information,
Please refer to
http://csd.acer.com.tw/
100% Recycled Paper
- 1 -

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Summary of Contents for Acer AL1732

  • Page 1 Acer AL1732 Service Guide Service guide files and updates are available on the CSD web: for more information, Please refer to http://csd.acer.com.tw/ 100% Recycled Paper - 1 -...
  • Page 2 “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 incidental or consequential damages resulting from any defect in the software.
  • Page 3 Conventions The following conventions are used in this manual: Screen messages Note Warning Caution Important Denotes actual messages that appear on screen Gives bits and pieces of additional information related to the current topic. Alerts you to any damage that might result from doing or not doing specific actions.
  • Page 4 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 Service of customer machines.
  • Page 5 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.
  • Page 6 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.

  • Page 7: Special Notes On Lcd Monitors

    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.

  • Page 8: Table Of Contents

    Table of contents Chapter 1 MONITOR FEATURE ………………………………………………………….9 Chapter 2 OPERATING INSTRUTION …………………………………………………….15 Chapter 3 Machine assembly ……………………………………………………………21 Chapter 4 TROBLE SHOOTING ………………………………………………………….27 Chapter 5 CONNECTOR INFORMATION ……………………………………………….29 Chapter 6 FRU LIST ………………………………………………………………………..30 Chapter 7 SCHEMATIC DIAGRAM …………………………………………………………31 - 8 -...

  • Page 9: Chapter 1 Monitor Feature

    Monitor Feature LCD Panel Input Display Color Maximum Dot Clock ® Max Resolution Plug & Play EPA ENERGY STAY Audio output Input Connector Input Video Signal Screen Size (Active) Power Source Environmental Considerations Weight (N.W.) Dimension Driving system TFT Color LCD Size 17"...
  • Page 10 Switch Function External Controls : Regulatory Compliance Timeings The product has 21 memory modes in total. 12 modes are preset and 9 modes are user definable. Timing Standard VESA Data Pixel Data Line H-Freq 31.469 31.469 37.861 37.500 70.087 V-Freq Hz 59.942 72.809 75.000 Pix Rate 25.175...
  • Page 11 0.318 0.636* 0.508 Hor.A [us] 3.813 3.813 1.270 Hor.B [us] 1.907 Hor.C [us] 1.907* 3.810 25.422 Hor.D [us] 25.422 20.317 20.317 31.778 Hor.E [us] 31.778 26.413 26.667 Vert.A 0.191 0.381 0.026 [ms] Vert.B 0.064 0.064 0.079 [ms] Vert.C 1.907 1.048# 0.528 [ms] Vert.D...
  • Page 12 Monitor Block Diagram - 12 -...
  • Page 13 PCB CONDUCTOR VIEW Main Board - 13 -...
  • Page 14 Button Board - 14 -...

  • Page 15: Operating Instructions

    OPERATING INSTRUCTIONS Front Panel Definition This Section defines the front panel User Interface for Led Indictor and Key function. Key Definition: There are five keys defined in this system and described bellows. * Adjusting display settings External Controls ○ POWER ○...

  • Page 16: Osd Menu

    OSD Menu Picture Brightness: This adjusts the brightness of the picture on the screen. Contrast: This adjusts dark and light shades of color relative to each other to achieve a comfortable contrast. Color temp. : There are three ways of adjusting color: Warm (Reddish white) Cool (Bluish white) User : You can adjust the colors red, green and blue to the intensity...

  • Page 17: Led Definition

    LED Definition The system equips one dual color (blue/amber) led to indict system status and defined as bellows : LED Color Blue Amber Dark Option Auto Config. : System runs auto-configuration. Reset: Recall to default settings. Information: This shows brief information on the screen. Setting Language: Select the OSD menu language from...

  • Page 18: Plug And Play

    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 DDC2B feature This monitor is equipped with VESA DDC2B capabilities according to the VESA DDC STANDARD. It allows the monitor to inform the host system of its identity and, depending on the level of DDC used, communicate additional information about its display capabilities.
  • Page 19 USING THE RIGHT POWER CORD The accessory power cord for the Northern American region is the wallet plug with NEMA 5-15 style and is UL listed and CSA labeled. The voltage rating for the power cord shall be 125 volt AC. Supplied with units intended for connection to power outlet of personal computer: Please use a cord set consisting of a minimum No.

  • Page 20: Chapter 3 Machine Assembly

    Machine assembly This chapter contains step-by-step procedures on how to assemble the monitor for maintenance and trouble shooting NOTE : 1. The screws for the different components vary in size. During the disassembly process, group the screws with the corresponding to avoid mismatch when putting back the components. 2.
  • Page 21 Real View : Top View : - 21 -...
  • Page 22 Side View : ( unit : mm ) Assembly process Picture Description 1. Get the inverter board and inverter cable 2. Insert inverter cable to inverter board. Assembly inverter board and shielding cover Insert keyboard cable on the main board Insert button cable on the main board.
  • Page 23 1. Connecting main board and inverter board with cable 2. Fix the main board and inverter board on the shielding cover 1. Get the panel and put it on the table carefully. 1. Fix left and right bracket (BKT) on the panel.
  • Page 24 1. Get shielding metal of PCB and insert LCD cable into the panel connector. 2. Stick tape on the LCD cable and panel connector as picture. 1. Assemble PCB shielding on the BKT. 2. Lock screw * 4 pcs to fix PCB shielding and BKT.
  • Page 25 1. Assembly speaker on the bezel. 2. Stick tape to fix speaker. 3. Tidy speaker cable as pictures 4. Insert speaker cable into speaker connector. 1. Tidy button board cable and stick it as picture. 2. Stick 2 pcs of AL foil on the CCFL of PCB shielding metal.
  • Page 26 1. Assembly back cover and bezel 2. Lock screw * 6 pcs to fasten and back cover 1. Lock screw*2 pcs to fasten bezel and PCB shielding. 2. Assembly DVI box, if necessary. 1. Assembly stand base and back cover. 2.

  • Page 27: Trouble Shooting

    TROUBLE SHOOTING This chapter provides trouble shooting information forAL1732 1. No Power No Power Check Adaptor Power Output =12V Check Scalar Module Output L4 =5V? C19 = 3.3V ? L 10 = 1.8V ? Check Power Button From Scalar/B(CN8) /B(CN1) - 27 - Chapter 4 Change Adaptor...
  • Page 28 2. No Characters , Missing one color Check Inverter From Change Inverter Board Scaler board OK ? Check or Change Cable Or Panel Change VGA Cable No Characters Missing one color Check CN1 12Vdc Output Check L4 5Vdc Output Check U2(pin2) 1.8Vdc Output Check U3(pin2) 3.3Vdc Output...
  • Page 29 3.No Audio Check Input source Or Change CN5 Change U5 or U9 No Audio Check Input Signal CN5 OK ? Check CN6 to Speaker OK ? Check U5(Pin6)Volume & U9 OK ? Check U5Pin1(Mute) & Q9 & U9 OK ? - 29 - Change Speaker or CN6(Cable)

  • Page 30: Chapter 5 Connector Information

    Connector Information Phonejack stereo PIN1. AC power cord PIN2. Audio cable PIN3. Audio : Line-in receptacle PHONEJACK STEREO Video signal connector 15P Mini D-Sub connector x 1 MNEMO : CEE22 typed connector DB15HD SIGNAL Red Video Green Video Blue Video None Ground(DDC return) Red GND...
  • Page 31 Proprietary connecting of DVI box The 44 pin of proprietary DVI box is defined as follows: RX2- RX2+ RX1- RX1+ RX0- RX0+ RXC- RXC+ LLC VPC KEY1 KEY2 SCART_FUNC KEY3 SCART RGB_CON SCL5V nYCOEN SDA5V NVDSW_SEL HSCL REST HSDA DVI_ DETECT CORD_ RESET CORD_DETECT ADO_L...

  • Page 32: Chapter 6 Fru List

    FRU (Field Replaceable Unit) list This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of AL1732. Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization). NOTE : Please note WHEN ORDERING FRU PARTS, that you should check the most up-to-date information available on your regional web or channel(http://aicsl.acer.com.tw/spl/).

  • Page 34: Chapter 7 Schematic Diagram

    Chapter 7 SCHEMATIC DIAGRAM Main Board Circuit - 34 -...
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  • Page 40 Inverter Circuit 1. LG panel - 40-...
  • Page 41 2. AU panel - 41 -...

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