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Acer X173 Service Manual

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Acer X173
Service Guide
1

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  Summary of Contents for Acer X173

  • Page 1 Acer X173 Service Guide...
  • Page 2 Service Guide Version and Revision Version Release Date Revision History TPV model Jul.-23-2007 Initial Release T77SRDDNHSABN...
  • Page 3 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, or 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 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. 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.
  • Page 5 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 6: Table Of Contents

    Chapter 1 Monitor Features Introduction Electrical Requirements LCD Monitor General Specification LCD Panel Specification Support Timing Monitor Block Diagram Main Board Diagram Software Flow chart Main Board Layout Installation Attaching/Removing the base Chapter 2 Operating Instructions External Controls Front Panel Controls eColor Management (OSD) How to Adjust a Setting LOGO...
  • Page 7: Chapter 1 Monitor Features

    50k hours or more. Panel Signal Interface Sync Type Color Temp User Adjust Speaker Headphone Jack Microphone Jack USB Hub Tilt / Swivel Chart of X173 LTM170EU-L31 D-Sub 15-pin Separate / Compatible Support DDC2B Not support Yes / No Chapter 1...
  • Page 8: Electrical Requirements

    Electrical Requirements Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Ambient light Viewing distance Warm up time All specifications Measuring equipment Control temperature User brightness control User contrast control User red/white balance, Green/white balance and Blue/white balance control AC Supply voltage Ambient temperature...
  • Page 9: Lcd Monitor General Specification

    LCD Monitor General Specification Driving system Active Display Area 337.92(H) × 270.336mm(V) LCD Panel Pixel pitch Viewable angle Response time Separate Sync. Input H-Frequency V-Frequency Display Colors 16.7M Colors Max. Dot Clock 140MHz Max. Resolution 1280 × 1024 @75Hz ON Mode ®...
  • Page 10: Lcd Panel Specification

    LCD Panel Specification General Specifications Mechanical Information...
  • Page 11 Optical Specifications...
  • Page 12: Support Timing

    Support Timing...
  • Page 13: Monitor Block Diagram

    Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and keypad board which house the flat panel control logic, brightness control logic and DDC. The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips each voltage.
  • Page 14: Main Board Diagram

    Main Board Diagram Crystal LCD Interface (X401) (CN601) Scalar IC RTD2025L RTD 2120L (Include ADC, OSD) (U401) (U501) H sync V sync Key Board Control CN202 D-Sub Connector (CN301)
  • Page 15: Software Flow Chart

    Software Flow Chart...
  • Page 16 Remark: 1) MCU initializes. 2) Is the EEPROM blank? 3) Program the EEPROM by default values. 4) Get the PWM value of brightness from EEPROM. 5) Is the power key pressed? 6) Clear all global flags. 7) Are the AUTO and SELECT keys pressed? 8) Enter factory mode.
  • Page 17: Main Board Layout

    Main Board Layout Symbol Description U201 056G 585 4A U401 056G1125701 X U402 056G 158501 U501 056G 562701 Symbol X401 093G 22 45 H CN201 033G3802 9 CN202 033G3802 6 CN601 033G801930F CH JS Description...
  • Page 18: Installation

    Installation...
  • Page 19: Attaching/Removing The Base

    Attaching/Removing the Base...
  • Page 20: Chapter 2 Operating Instructions

    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. •...
  • Page 21: Front Panel Controls

    Front Panel Control...
  • Page 22: Ecolor Management (Osd)

    eColor Management (OSD)
  • Page 23: How To Adjust A Setting

    How to Adjust a Setting...
  • Page 24 Adjusting the picture...
  • Page 27: Osd Message

    OSD Message a. Outline b. The Description For OSD Message Item Auto Config When Analog signal input, if User Press Hot-Key “Auto”, will show this message, and the Please Wait monitor do the auto config function. Input Not When the Hsync Frequency, Vsync Frequency or Resolution is out of the monitor Supported support range, will show this message.
  • Page 28: Logo

    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 29: Chapter 3 Machine Disassembly

    Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor for maintenance. Disassembly Procedure 1. Remove the cover hinge marked in red. (Fig 1) 2. Remove the screws to release base stand . (Fig 2) Fig 1 Fig 2 Chapter 3...
  • Page 30 3. Remove the back cover and regard the hook. (Fig 3-4) 4. Remove the keyboard. (Fig 5) Fig 3 Fig 4 Fig 5...
  • Page 31 5. Remove the bezel. (Fig 6) 7. Remove the screws to remove the panel. (Fig 7-10) Fig 6 Fig 7 Fig 8...
  • Page 32 Fig 9 Fig 10 8. Remove the screw as following indicate to remove the main board and power board. (Fig 11-13) Fig 11...
  • Page 33 Fig 12 Fig 13...
  • Page 34: Chapter 4 Troubleshooting

    Troubleshooting This chapter provides troubleshooting information for the X173: 1. No Power Press power key and look if the picture Please reinsert and make sure the AC of 100-240 is normal Measure U201 Pin 3=5V, U201 Pin 2=3.3V Check if X401 oscillate...
  • Page 35 2. No Picture No picture Measure U201 PIN2=3.3V Check if X401oscillate waveforms are normal Check if the sync signal from computer is output and video cable is connected normally Replace U401, U501 Replace U201 Replace X401 Input the sync signal of computer, or change the cable...
  • Page 36 3. Panel Power Circuit Check CN601 PIN 23 should have response from 0V to 5V When we switch the power switch from on to off Replace panel 4. Keypad Board OSD is unstable or not working Is Keypad board connecting normally? Is Button Switch normally? Is Keypad board normally? Check main board...
  • Page 37 5. No Backlight Check C802 (+) =12V Check ON/OFF signal Check IC801 pin12=12V? Check the pin9&10 of IC801 have PWM wave Check the resonant wave of pin6 & pin1 for PT801, PT802 Check the output of PT801, PT802 Check connecter & lamp Change FB801,Q805 Q808, Q810 Check Interface board Change Q805.Q808 or Q810...
  • Page 38: Chapter 5 Connector Information

    Chapter 5 Connector Information The following figure shows the connector locations on the monitor:...
  • Page 39: Chapter 6 Fru (Field Replacement Unit) List

    NOTE: To scrap or to return the defective parts, you should follow the local government ordinance or regulations on how to dispose it properly, or follow the rules set by your regional Acer office on how to return it. Chapter 6...
  • Page 40: Exploded Diagram

    Exploded Diagram (Model: X173)
  • Page 41: Part List

    Part List Above picture show the description of the following component. Item Picture Description Base shield Key board Panel...
  • Page 42 Power Board Main Board...
  • Page 43: Chapter 7 Schematic Diagram

    R213 10K 1/16W LED_G# Q205 LED_G PMBS3906 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL X173 TPV MODEL T77SRDDNHABN G2498-1-K-AC-1-070707 02.POWER PCB NAME 715G2498-1-K-AC Date Monday , July 09, 2007 Sheet Chapter 7 Size...
  • Page 44 75R 1/16W C311 R315 100R 1/16W RTD_R- 0.047uF T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL X173 TPV MODEL T77SRDDNHSABN G2498-1-K-AC-1-070707 03.input PCB NAME 715G2498-D-K Monday , July 09, 2007 Sheet Date RTD_B+ RTD_B-...
  • Page 45 R436 C410 3.9KΩ 1/16W 10K 1/16W 0.1uF/16V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL X173 TPV MODEL 絬 隔 瓜 絪 腹 T77SRDDNHSABN G2498-1-K-AC-1-070707 Key Component 04.MCU/RTD2120L PCB NAME 715G2498-1-K-AC Date Monday , July 09, 2007...
  • Page 46 TXE1- LVDS_E8 RXE1+ LVDS_E9 TXE1+ T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL X173 TPV MODEL T77SRDDNHSABN 絬 隔 瓜 絪 腹 G2498-1-K-AC-1-070707 Key Component 05.RTD2525L PCB NAME 715G2498-1-K-AC Date Monday , July 09, 2007...
  • Page 47 T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL TPV MODEL 絬 隔 瓜 絪 腹 G2498-1-K-AC-1-070707 Key Component 06.OUTPUT PCB NAME Monday , July 09, 2007 Sheet Date CN601 PANEL_VCC PANEL_VCC Size X173 T77SRDDNHSABN 715G2498-1-K-AC 称爹...
  • Page 48: Power Board

    Power board BD901 KBP208G 4K7 1/4W C938 C905 1500pF 2KV 100uF/450V 4K7 1/4W D901 PS102R C908 C907 22uF/50V 0.1uF 4K7 1/4W L902 DRAIN PROTECT DRIVER CTRL SENSE IC901 TEA1530AT C911 R915 220K 1/8W 0.22uF/25V C902 C901 0.001uF/250V 0.001uF/250V R911 1K 1/8W L901 4.0mH R931...
  • Page 49 F801 0R05 1/4W +12V 3.6K 1/10W R819 R804   1/8W Q801 PMBS3904 Q808 PDTA144WK Q805 PDTC144WK Q804 PMBS3906 ON/OFF C807 0.1uF/25V Q811 PMBS3904 Q812 PMBS3906 R827 0 1/10W   Q806 R853 PMBS3904 C835 R808 R813 10K 1/10W 10K 1/10W 1% D817 LL4148WP Q810...

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X173w