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Acer X233HZ Service Manual

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Acer X233HZ&X243HQ
Service Guide
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  • Page 1 Acer X233HZ&X243HQ Service Guide...
  • Page 2 Service Guide Version and Revision Version Release Date Revision History Customer model TPV model Dec.-18-2008 Initial Release X233HZ&X243HQ TDRMNDD8Y1ABPN...
  • 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 ……………………………………… Software Flow chart ……………………………………… Main Board Layout ………………………………………...
  • Page 7: Chapter 1 Monitor Features

    Chapter 1 Monitor Features Introduction Scope This short specification describes the electrical, optical and functional performance requirements for a 63.2cm (23.6”) TFT LCD color monitor with VGA&DVI compatible interface. Description The LCD monitor is designed with the latest LCD technology to provide a performance oriented product with no radiation.
  • Page 8: Electrical Requirements

    Electrical Requirements of X233HZ&X243HQ Standard Test Conditions All tests shall be performed under the following conditions, unless otherwise specified. > 30 min. Warm up time AC supply voltage 230V± 5%, 50± 3 Hz Ambient temperature 20 C Humidity Display mode 1920 x 1080, 60 Hz, Pixel Clock:148.5MHZ,all white e-color mode Set to “User”...
  • Page 9: Lcd Monitor General Specification

    LCD Monitor General Specification Model name X233HZ&X243HQ Driving system TFT Color LCD Active Display Area 525.22 (H) x 297.22(V) Pixel pitch 0.2715(H) x 0.2715(V) LCD Panel Contrast Ratio 1000 : 1 (typ) Response time 5ms(Typ.). 8ms(max) Luminance of White 300 cd/m (Typ.) Separate Sync.
  • Page 10: Lcd Panel Specification

    LCD Panel Specification of X233HZ&X243HQ M236H1-L01 is a 23.6” TFT Liquid Crystal Display module with 4 CCFL Backlight unit and 30 pins 2ch-LVDS interface. This module supports 1920 x 1080 Full HD mode and can display up to 16.7M colors. The inverter module for Backlight is not built in.
  • Page 11 Back light Unit Electrical Characteristics...
  • Page 12 Optical Specifications...
  • Page 13: Factory Preset Timing

    2080 x 1111 66.587 69.934 138.500 IBM MODES 720x400@70Hz 900 x 449 31.469 70.087 28.322 MAC MODES 640x480@67Hz 864x525 35.000 66.667 30.240 ACER SPECIAL MODE 648x500@57.67 Hz 808 x 541 31.199 57.67 25.209 1024x600@60Hz 1312 x 622 37.320 60.000 48.964...
  • Page 14: Monitor Block Diagram

    Monitor Block Diagram The LCD MONITOR will contain a main board, a power board, a usb 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 (X401) (CN301) Scalar IC NT68667UFG/C Key control Interface Flash Memory SST25VF010A (Include MCU, ADC, OSD) (CN402) (U402) (U401) H sync V sync D-Data D-Clock D-Sub Connector Connector (CN101) (CN102)
  • 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 NT68667UFG/C QFP-128L CN402 WAFER U703 IC LD1117DT33TR DPAK CN701 WAFER 9P RIGHT ANELE PITCH U103 IC AZC099-04S SOT23-6L CN301 CONNECTOR U104 IC AZC099-04S SOT23-6L X401 CRYSTAL 12MHz HC-49US ARG6-120 D-SUB 15PIN VERTICAL CONN WITH U402 SST25VF010A-33-4C-SAE CN101...
  • Page 19: Installation

    Installation To install the monitor to your host system, please follow the steps as given below: Steps 1. 1-1 Connect Video Cable a. Make sure both the monitor and computer are powered-OFF. b. Connect the VGA video cable to the computer. 1-2 Digital Cable (Only Dual-Input Model) a.
  • Page 20 Attaching / Removing the Base Install: Align the release button on the bottom of the monitor with the corresponding slots on the bottom of the base. Remove: Depress the release button as indicated first before removing the base and follow the arrow direction to remove it. SCREEN POSITION ADJUSTMENT In oder to optimize the best viewing position, you can adjust the tilt of the monitor by using both of your hands to hold the edges of the monitor as shown in the figure 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. The power cord should be connected.
  • Page 22: Ecolor Management (Osd)

    Acer eColor Management Step 1: Press “ Key” to open the Acer e-Color Management OSD and access the scenario modes Step 2: Press “<” or “>” to select the mode Step 3: Press “Auto Key ” to confirm the mode and run Auto Adjust Automatic Adjustment Step 1: Press “...
  • Page 23: How To Adjust A Setting

    5. To exit and save, select the exit function. If you want to adjust any other function, repeat steps 2-4. P/X Series OSD behave When user press “MENU” button on front bezel Acer eColor Management If selected to “Acer eColor Management” item, will appear the Acer eColor” OSD. OSD and “ Key” locations USER...
  • Page 24 If selected to “USER” item, will appear the Standard OSD Adjusting the picture The descriptions for function control LEDS...
  • 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 X233HZ&X243 HQ monitor for maintenance. The tool for disassembly is as follows: Screwdriver,Hexagonal screwdriver, Putty knife. Disassembly Procedure 1. Remove the hinge assembly. Remove the rear cover and bezel. The arrows in blue are the hook that we should put attention to when remove the rear cover.
  • Page 29 3. Remove the lamp connectors and remove the screws to remove the panel. Put attention to the LVDS cable. 4. Remove the screws to remove the main board and power board.
  • Page 30 5. The panel...
  • Page 31: Chapter 4 Troubleshooting

    Chapter 4 Troubleshooting This chapter provides troubleshooting information for the X233HZ&X243HQ: 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 U703 Pin2=3.3V, Check U703, C706 and C707...
  • Page 32 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 U703 Pin2=3.3V, Replace U401 X401 oscillate waveform is normal Check U703, C706 and C707 Replace X401 Check HS/VS from...
  • Page 33 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 34 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...
  • Page 35 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 36 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 PIN12=14.5V Check ON/OFF circuit Check IC801 PIN5 have triangle wave Change IC801 Check IC801 PIN9/PIN10 PWM wave Check R816/R817/R818/R819 Check the output of PT801 Change PT801...
  • Page 37: 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 38: 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: X243HQ&X233HZ)
  • Page 39 Q`ty Item Description Part No. SCERW M3X8 0Q1G130 8120 SCERW M4X8 0M1G140 8125 SCERW M4X10 0M1G1740 10120 SCERW M4X8 0Q1G 940 8120 SCERW M3X5 0M1G 130 5120 SCERW M3X6 0M1G1730 6120 RUBER FOOT 2 A12G0006 1 RUBER FOOT 1 A12G0007 1 BAES BRACKET A15G0567 101 HINGE...
  • Page 40 Part List Above picture show the description of the following component. Picture Description Part No. Main_frame_Sam A15G0477F01101 Bezel A34G1105 RXA1B0130 Panel 750GLM236H1112N000 Power Board PWPC8E41MQHA...
  • Page 41 Main Board CBPCRNDABQP Key Board KEPC7QK1 Stand Front A34G1107 RX 1B0100 Base A34G1109 RX 1B0130 Stand Rear A34G1108 RX 1B0100...
  • Page 42 Hinge A37G0110 1 USB BOARD USB7QK4...
  • Page 43: Chapter 7 Schematic Diagram

    候候U1 05 候候U1 06 GND POWER DGND T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer X243HQ&X233HZ Size 絬 隔 瓜 絪 腹 G3108-D-X-X-1-20080519 TPV MODEL TDRMNDD8Y 1ABPN Key Component 2.0.INPUT PCB NAME <称称>...
  • Page 44 C305 100uF25V AO3401L T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer X243HQ&X233HZ 絬 隔 瓜 絪 腹 G3108-D-X-X-1-20080519 TPV MODEL TDRMNDD8Y 1ABPN Key Component 3.0.OUTPUT PCB NAME 称 称 <称称> Monday , May 19, 2008...
  • Page 45 Q701 4K7 1/16W 5% 2N3904S-RTK/PS AP1117D33LA T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer X243HQ&X233HZ Size 絬 隔 瓜 絪 腹 G3108-D-X-X-X-20080519 TPV MODEL TDRMNDD8Y 1ABPN Key Component 4.0.POWER PCB NAME 称 称...
  • Page 46 0R05 1/16W FFC CONNECTOR T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer X243HQ&X233HZ NC/2x4PIN/1.0mm CN401 PIN1~5㎝CN406 PIN1~5 LAY 絬 隔 瓜 絪 腹 TPV MODEL G3108-D-X-X-1-20080519 TDRMNDD8Y 1ABPN K ey Component 5.0.SCALER PCB NAME <称称>...
  • Page 47 HEAT SINK(Q901) CONN MUTE T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Custom Acer X243HQ&X233HZ +5V1 絬 隔 瓜 絪 腹 G2824-1-5-X-6-081125 TPV MODEL TDRMNDD8Y1ABPN K ey Component 03.POWER PCB NAME 715G2824-1-5 称 称...
  • Page 48 10K 1/10W 5% R842 10K 1/10W 5% Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size Acer X243HQ&X233HZ 絬 隔 瓜 絪 腹 G2824-1-5-X-6-081125 TPV MODEL TDRMNDD8Y1ABPN Key Component 02.INVERTER PCB NAME 715G2824-1-5 ODM MODEL 称...
  • Page 49 Q607 MMBT3906 100uF/25V FB602 BEAD MUTE C614 0.1uF/16V HEAT SINK(IC601) R613 1K 1/10W 5% Acer X243HQ&X233HZ Custom T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size 絬 隔 瓜 絪 腹 G2824-1-5-X-6-081125 TPV MODEL...
  • Page 50: Key Board

    T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Size X173/X173W/X193W/P193W/X223W 絬 隔 瓜 絪 腹 G2731-B-AC-X-1-070617 TPV MODEL ACER Key Component 02.Key Board PCB NAME 715G2731-B-AC 称 称 <称称> Sunday , June 17, 2007 Sheet Date...
  • Page 51 100uF/16V C796 0.1uF16V 100uF/16V T P V ( Top Victory Electronics Co . , Ltd. ) OEM MODEL Acer X243HQ&X233HZ Size 絬 隔 瓜 絪 腹 TPV MODEL G3015-C-X-X-3-080806 K ey Component 02. USB 2514 PCB NAME 715G3015-C Main Board 称...

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