Acer V243H Service Manual
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Acer V243H Service Manual

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Acer V243H
Service Guide
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  • Page 1 Acer V243H Service Guide...
  • Page 2 Service Guide Version and Revision Version Release Date Revision History Customer model TPV model Apr.-16-2009 Initial Release V243H TK9AMAD8YBAYDN...
  • 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

    Table Of Contents Chapter 1 Monitor Features ………………………………………… Introduction ……………………………………… Electrical Requirements ……………………………………… LCD Monitor General Specification ……………………………………… LCD Panel Specification ……………………………………… Factory Preset Timing ……………………………………… Monitor Block Diagram ……………………………………… Main Board Diagram ……………………………………… Power Board Diagram Software Flow chart ………………………………………...

  • Page 7: Chapter 1 Monitor Features

    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 50k hours or more. Chart of V243H Panel PANEL M240HW01 V00 XM AUO Signal Interface D-Sub 15pin;DVI 24pin...

  • Page 8: Electrical Requirements

    Electrical Requirements of V243H Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. Warm up time ＞ 30 min. AC supply voltage 230V± 5％, 50± 3 Hz 20°C ± 5°C Ambient temperature 65% ± 20%...

  • Page 9: Lcd Monitor General Specification

    LCD Monitor General Specification Model name V243H Driving system TFT Color LCD Active Area 531.36 (H) x 298.89 (V) Pixel pitch 0.265(H) x 0.265(V) LCD Panel Contrast Ratio 1000 : 1 (typ) Response time 5ms(Typ.) Luminance of White 300 cd/m (Typ.)

  • Page 10: Lcd Panel Specification

    LCD Panel Specification of V243H This specification applies to the 24 inch-wide Color a-Si TFT-LCD Module M240HW01.The display supports the Full HD - 1920(H) x 1080(V) screen format and 16.7M colors (RGB 6-bits +Hi-FRC data). All input signals are 2-channel LVDS interface and this module doesn’t contain an inverter board for backlight.
  • Page 11 Electrical Characteristics Optical Specifications...

  • Page 12: Factory Preset Timing

    Factory Preset Timing of V243H...

  • Page 13: Monitor Block Diagram

    Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, and a key 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 Panel Interface Crystal 12MHz (CN301) (X401) EEPROM M24C04 Scalar IC TSUMU58EHL-LF-1 Key control Interface (U402) (Include MCU, ADC, OSD) (CN402) Flash Memory (U401) SST25VF010A (U402) H sync V sync D-Data D-Clock D-Sub Connector Connector (CN101) (CN102)

  • Page 15: Power Board Diagram

    Power Board Diagram AC input Bridge Rectifier EMI filter Transformer Rectifier diodes and Filter Start Resistor (R904, R905) Feedback PWM Control Circuit Power Switch (IC901) (Q901) Photo coupler (IC903) Output Transformer MOSFET Circuit (PT801) (Q803) Lamp PWM Control Feedback TA9687GN ON/OFF Circuit (IC801)

  • Page 16: Software Flow Chart

    Software Flow Chart...
  • Page 17 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 18: Main Board Layout

    Main Board Layout Symbol Description Symbol Description U401 IC TSUMU58EHL-LF-1 CN402 WAFER U701 IC AP1117E33L-13 CN701 WAFER 9P RIGHT ANELE PITCH U106 IC AZC099-04S SOT23-6L CN301 CONNECTOR U107 IC AZC099-04S SOT23-6L X401 14.31818MHZ/32PF/49US D-SUB 15PIN VERTICAL CONN WITH U403 M24C04-WMN6TP SO8 CN101 SCREW U402...

  • Page 19: Installation

    Installation To install the monitor to your host system, please follow the steps as given below: Steps 1 Connect Video Cable a. Make sure both the monitor and computer are powered-OFF. b. Connect the VGA video cable to the computer. c.
  • Page 20 Attaching / Removing the Base Attaching: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base. Removing: Press the release button as indicated, then pull in the direction of the arrow to remove the base. SCREEN POSITION ADJUSTMENT To optimize the viewing position, you can adjust the monitor tilt by using both of your hands to hold the edges of the monitor as shown below.

  • Page 21: Chapter 2 Operating Instructions

    Chapter 2 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. •...

  • Page 22: Ecolor Management (Osd)

    Management (OSD) If selected to “Acer eColor Management” item, will appear the Acer eColor OSD (NOTE: In MENU OSD the “Acer eColor Management” item doesn’t have Multi-language selection, only English language) Acer eColor Management main menu, sub menu and description...

  • Page 23: How To Adjust A Setting

    Acer eColor Management Operation instructions 1 Press the Empowering Key to open the Acer eColor Management OSD and access the scenario modes. 2 Press "<" or ">" to select the mode. 3 Press the Auto-adjust button to confirm the mode and run Auto Adjust.
  • Page 24 Features and benefits USER main menu, sub menu and description...

  • Page 27: How To Optimize The Dos-Mode

    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 28: Chapter 3 Machine Disassembly

    Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor- V243H for maintenance. The tool for disassembly is as follows: Screwdriver, Hexagonal screwdriver, Putty knife. Disassembly Procedure 1.Lay the monitor on a flat, soft and clean surface.
  • Page 29 3.Remove the rear cover and bezel. a.Turn over the monitor and take off the rear cover.Pry the monitor up then find out the hooks’ position, use the tool (like the picture or other card) to insert into the gap of bezel and rear cover. b.Disconnect the connector remarked in green.
  • Page 30 c.Remove the key board from the bezel 4. Remove the lamp connectors to remove the panel. Put attention to the LVDS cable. LVDS CABLE 5. Remove the screws remarked in red.
  • Page 31 6. Remove the four screws remarked in red and disconnected remarked in green to remove the main board and power board. Install: The cable doesn’t touch the capacitances and don’t be laid above the capacitances 7.The panel...

  • Page 32: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting This chapter provides troubleshooting information for the V233H: 1. No Power No power Press power key and look if the picture is normal Please reinsert and make sure the AC of 100-240 is normal Reinsert or check the power section Measure U701 Pin2=3.3V, C704(+)=1.8V Check U701,Q702 and Q703...
  • Page 33 2. No Picture (LED is orange) No picture The button if under X401 oscillate Replace X401 control waveform is normal Check reset circuit of Check Correspondent U401 is normal component Measure U701 Pin2=3.3V, C704(+)=1.8V Replace U401 X401 oscillate waveform is normal Check U701, Q702 and Q703 Replace X401 Check HS/VS from...
  • Page 34 3. Panel Power Circuit White screen Measure Q302 base X401 oscillate is low level? waveform is normal Replace X401 Check CN301 is solder Check reset circuit of and Q302, Q301 is OK? U401 is normal Check Correspondent Check Correspondent component. component.
  • Page 35 4. Key Board OSD is unstable or not working Connect Key Board Is Key Pad Board connecting normally? Replace Button Switch Is Button Switch normally? Replace Key Board Is Key Pad Board normally? Check Main Board...
  • Page 36 5. Power Board 1) No power Check CN902 PIN3, 4 = 5V Check AC line volt 110V or 220V Check AC input Check the voltage of C905 (+) Check bridge rectified circuit and F901 circuit Check start voltage for the pin3 of IC901 Check R904, R905 and Change IC901 Check the auxiliary voltage is bigger than 11V and smaller than 25V...
  • Page 37 2.) No Backlight Check if the input voltage of inverter part is 16V Check adapter part Check ON/OFF signal Check Interface board Check IC801 PIN10=16V Check ON/OFF circuit Check IC801 PIN5 have triangle wave Change IC801 Check IC801 PIN8/PIN9 PWM wave Check Q805/Q806/IC801 Check the output of PT801 Change PT801...

  • Page 38: Chapter 5 Connector Information

    Chapter 5 Connector Information D-sub connect and DVI connect: 15-Pin Color Display Signal Cable 24-Pin Color Display Signal Cable...

  • 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. Exploded Diagram (Model: V243H)
  • Page 40 Item Description ACER Part NO. Part NO. Q`ty BEZEL L24WA-8ACER1-S2 60.LHG0B.001 A34G1340AEMA1B0130 POWER LENS A33G0378 1 1C0100 KEY BUTTON A33G0379AEM 1L0100 MAINFRAME 60.LHG0B.005 A15G0772201104 REAR COVER 24WA 60.LHG0B.003 A34G1341AEM 4B0100 STAND 60.LG60B.003 A34G1135AEM 1B0100 BASE 8ACER1 S2 60.LG60B.004 A34G1136AEM 1B0130...
  • Page 41 Part List Above picture show the description of the following component. Picture Description ACER Part NO. TPV Part No. 60.LHG0B.005 A15G0772201104 Main_frame_Sam Bezel 60.LHG0B.001 A34G1340AEMA1B0130 Panel LK.24005.013 750GLU240H1013N000 Power Board 55.LHG0B.003 PWPC9E41MQKD...
  • Page 42 Main Board 55.LHG0B.001 CBPC9A8ABQ1 Key Board 55.LBZ0B.005 KEPC8QK4 Hinge 60.LG60B.006 A37G0075 2 base 60.LG60B.004 A34G1136AEM 1B0130...

  • Page 43: Chapter 7 Schematic Diagram

    候綼　U106 DDC_WP GND POWER DGND NC / M24C02-WMN6TP T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL V233H V243H Size ESD_VCC2 ESD_VCC1 FB109 G2883-1-X-X-44-090227 TPV MODEL ACER 絬 隔 瓜 絪 腹 Key Component 2.0.INPUT PCB NAME <称爹>...
  • Page 44 C305 100uF25V AO3401L T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size V233H V243H G2883-1-X-X-44-090227 TPV MODEL 絬 隔 瓜 絪 腹 ACER Key Component 3.0.OUTPUT PCB NAME <称爹> 称爹 Friday , February 27, 2009...
  • Page 45 0.1uF/16V 0.1uF/16V 100uF25V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size V233H V243H G2883-1-X-X-44-090227 TPV MODEL ACER 絬 隔 瓜 絪 腹 Key Component 4.0.POWER PCB NAME <称爹> 称爹 Friday , February 27, 2009...
  • Page 46 0.1uF/16V 10K 1/16W 5% CONN lock type T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size V233H V243H G2883-1-X-X-44-090227 TPV MODEL 絬 隔 瓜 絪 腹 ACER Key Component 5.0.SCALER PCB NAME <称爹> 称爹...
  • Page 47 HEAT SINK(Q901) CONN MUTE T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom ACER +5V1 絬 隔 瓜 絪 腹 G2824-3-5-X-35-090402 TPV MODEL PWPC9E41MQKD Key Component 03.POWER PCB NAME 715G2824-3-5 ODM MODEL 称爹...
  • Page 48 5.1K 1/10W 5% R842 5.1K 1/10W 5% Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL ACER Size G2824-3-5-X-35-090402 TPV MODEL 絬 隔 瓜 絪 腹 PWPC9E41MQKD Key Component 02.INVERTER PCB NAME 715G2824-3-5 ODM MODEL 称爹...
  • Page 49 MMBT3906 100uF/25V FB602 BEAD MUTE C614 0.1uF/16V HEAT SINK(IC601) R613 1K 1/10W 5% IC with Heat-sink(90G6295-3) ACER Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size G2824-3-5-X-35-090402 TPV MODEL 絬 隔 瓜 絪 腹...
  • Page 50 VOL- VOL+ POWER T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size acer B and V key pad G2944-A-X-X-1-071122 TPV MODEL acer 絬 隔 瓜 絪 腹 Key Component 02.KEY PCB NAME 715G2944-A <称爹>...

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