Acer V233H Service Manual

Acer V233H Service Manual

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Acer V233H display Manual
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Summary of Contents for Acer V233H

  • Page 1 Acer V233H display Manual From collects and classifies the global product instrunction manuals to help users access anytime and anywhere, helping users make better use of products. Home: Chinese: This Manual:
  • Page 2 Acer V233H Service Guide This Manual:
  • Page 3 Service Guide Version and Revision Version Release Date Revision History Customer model TPV model Apr.-17-2009 Initial Release V233H TD9GA8D8W7ABDN This Manual:
  • Page 4 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 5 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 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: 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 8: 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 V233H Panel LM230WF1-TLA3 GZ LGD Signal Interface D-Sub 15pin;DVI 24pin...
  • Page 9: Electrical Requirements

    Electrical Requirements of V233H 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 10: Lcd Monitor General Specification

    LCD Monitor General Specification Model name V233H Driving system TFT Color LCD Pixel pitch 0.265(H) x 0.265(V) Contrast Ratio 1000 : 1 (typ) LCD Panel Response time 5ms(Typ.). 8ms(max) Luminance of White 300 cd/m (Typ.) Separate Sync. H/V TTL Input H-Frequency 30kHz –...
  • Page 11: Lcd Panel Specification

    LCD Panel Specification of V233H LM230WF1-TLA3 is a Color Active Matrix Liquid Crystal Display with an integral Cold Cathode Fluorescent Lamp(CCFL) backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type display operating in the normally white mode. It has a 23 inch diagonally measured active display area with FHD resolution (1080 vertical by 1920 horizontal pixel array) Each pixel is divided into Red,Green and Blue sub-pixels or dots which are arranged in vertical stripes.
  • Page 12 Electrical Characteristics Optical Specifications This Manual:
  • Page 13: Factory Preset Timing

    Factory Preset Timing of V233H This Manual:
  • Page 14: 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 15: 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 16: 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 (PT801) Circuit (Q803) Lamp PWM Control Feedback TA9687GN ON/OFF Circuit (IC801)
  • Page 17: Software Flow Chart

    Software Flow Chart This Manual:
  • Page 18 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 19: 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/49US0 D-SUB 15PIN VERTICAL CONN WITH U403 M24C04-WMN6TP SO8 CN101 SCREW U402...
  • Page 20: 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 21: Screen Position Adjustment

    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 22: 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 23: 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 24: 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 25 Features and benefits USER main menu, sub menu and description This Manual:
  • Page 26 This Manual:
  • Page 27 This Manual:
  • Page 28: 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 29: Chapter 3 Machine Disassembly

    Chapter 3 Machine Disassembly This chapter contains step-by-step procedures on how to disassemble the monitor- V233H 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 30 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 31 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. This Manual:
  • Page 32 6. Remove the four screws remarked in red and disconnected remarked in green to remove the main board and power board. 7.The panel This Manual:
  • Page 33: 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...
  • Page 34 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 35 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 36 4. Key Board OSD is unstable or not working Is Key Pad Board connecting normally? Connect Key Board Replace Button Switch Is Button Switch normally? Replace Key Board Is Key Pad Board normally? Check Main Board This Manual:
  • Page 37 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 38 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 39: 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 This Manual:
  • Page 40: 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: V233H)
  • Page 41 Item Description TPV Part No. ACER Part NO. Q`ty BEZEL A34G1338AEMA2B0130 60.LG90B.001 L23WA-8ACER1-S2 POWER LENS A33G0378 1 1C0100 KEY BUTTON A33G0379AEM 1L0100 MAINFRAME A15G0772302104 60.LG90B.003 REAR COVER 23WA A34G1339AEM 9B0100 60.LG90B.002 STAND A34G1135AEM 1B0100 60.LF50B.003 BASE 8ACER1 S2 A34G1136AEM 1B0130 60.LG60B.004...
  • Page 42 Part List Above picture show the description of the following component. Picture Description TPV Part No. ACER Part NO. 60.LG90B.003 Main_frame_Sam A15G0772302104 A34G1338AEMA2 Bezel 60.LG90B.001 B0130 750GLG230F1A3 Panel 55.LG90B.001 3N000 Power Board PWPC9E41MQKD 19.LF50B.001 This Manual:
  • Page 43 Main Board CBPC9A8ABQ1 55.LG90B.001 Key Board KEPC8QK4 55.LBZ0B.005 Hinge A37G0075 2 60.LG60B.006 A34G1136AEM base 60.LG60B.004 1B0130 This Manual:
  • Page 44: Chapter 7 Schematic Diagram

    GND POWER DGND NC / M24C02-WMN6TP T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size V233H V243H ESD_VCC2 ESD_VCC1 FB109 G2883-1-X-X-44-090227 TPV MODEL 絬 隔 瓜 絪 腹 ACER 2.0.INPUT PCB NAME Key Component <称爹>...
  • Page 45 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 46 AP1117E33LA C709 100uF25V 0.1uF/16V 0.1uF/16V 100uF25V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL V233H V243H Size G2883-1-X-X-44-090227 TPV MODEL 絬 隔 瓜 絪 腹 ACER Key Component 4.0.POWER PCB NAME <称爹> 称爹 Date...
  • Page 47 10K 1/16W 5% 0.1uF/16V 10K 1/16W 5% CONN lock type T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL V233H V243H Size G2883-1-X-X-44-090227 TPV MODEL 絬 隔 瓜 絪 腹 ACER Key Component 5.0.SCALER PCB NAME <称爹>...
  • Page 48 HEAT SINK(Q901) CONN MUTE Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size ACER +5V1 G2824-3-5-X-35-090402 TPV MODEL 絬 隔 瓜 絪 腹 PWPC9E41MQKD Key Component 03.POWER PCB NAME 715G2824-3-5 ODM MODEL 称爹...
  • Page 49 5.1K 1/10W 5% R842 5.1K 1/10W 5% T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom ACER 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 50 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 51: Key Board

    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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