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Asus MW221U/201U Service Manual

For l2 (module) repair
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LCD Monitor Service Guide
for
L2 (Module) Repair
Model: MW221U/201U
V1.0
RESTRICTIONS ON USE OF MATERIALS
This manual is only for ASUS authorized service centers to repair ASUS
LCD product. The documents are provided as is and no copy, reproduction
or transfer shall be made without first acquiring prior written approval from
ASUSTEK. All rights reserved

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  Summary of Contents for Asus MW221U/201U

  • Page 1 V1.0 RESTRICTIONS ON USE OF MATERIALS This manual is only for ASUS authorized service centers to repair ASUS LCD product. The documents are provided as is and no copy, reproduction or transfer shall be made without first acquiring prior written approval from...
  • Page 2 Release Version List Version Issue Date Remarks V1.0 2006.09.05 First Release...
  • Page 3: Table Of Contents

    Index MW201 LCD Monitor Overview ..............1 Product Specification ................2 III. MMI......................3 Front side....................3 Back side ....................5 IV. Menu & Operating Mode................6 Disassembly & Assembly................7 Precaution ..................7 Suggest Tools ..................8 Disassembly Procedure..............9 3.1 Stand Subsystem................10 3.2 Board Subsystem ................11 3.3 Panel Subsystem................16 3.4 Bezel Subsystem ................18 Assemble Procedure ...............20 4.1 Bezel Subsystem ................21...
  • Page 4: Mw201 Lcd Monitor Overview

    I. MW221/201 LCD Monitor Overview Main product features include: 16:10 wide display format 1680*1050 WSXGA+ High Resolution Trace-Free Technology provide 2ms(GTG) Response Time 330nits Brightness with 800:1 Contrast Ratio(MW221U) 170/160 Degree Wide Viewing Angle SPLENDIDTM Video Intelligence Technology HDCP function for digital signals with DVI input 5 Video Preset Modes (hotkey) &...
  • Page 5: Product Specification

    II. Product Specification Technical Specification MW221 MW201 22’’ Wide 20.1’’ Wide Panel Size 2ms(Gray to Gray) Response Time 300cd/m2 Brightness (Max.) 700:1 Contrast Ratio (Max.) Panel 170/160 170/150 Viewing Angle (H/V) WSXGA+1680x1050 Max. Resolution 0.282mm 0.258mm Pixel Pitch 16.2M Display Color Splendid (Video Intelligence) 15-Pin D-Sub Analog...
  • Page 6: Mmi

    III. MMI Front side 1. Headphone port This port connects a headphone with a stereo mini-plug (3.5mm). The headphone port is under the icon The headphone is purchased separately, 2. SPLENDID Button: Use this hotkey to switch from five video preset modes (Game Mode, Night View Mode, Scenery Mode, Standard Mode, and Theater Mode) with SPLENDID™...
  • Page 7 4. MENU Button: Press this button to enter/select the icon (function) highlighted while the OSD is activated. 5.+►Button: Press this button to increase the value of the function selected or move right/down to the next function. This is also a hotkey for Brightness adjustment. Power button/power indicator Press this button to turn the monitor on/off The color definition of the power indicator is as the below table.
  • Page 8: Back Side

    Back side Rear Connectors Rear Connectors (From left to right) 1. PWR port. This port connects the power connector from the bundled power cord. 2. Audio-in port. This port connects PC audio source by the bundled audio cable. 3. DVI port. This 24-pin port is for PC (Personal Computer) DVI-D digital signal connection.
  • Page 9: Menu & Operating Mode

    IV. Menu & Operating Mode Menu Splendid Image Color (1) Scenery Mode (1) Brightness (1) Color Temp. (2) Standard Mode (2) Contrast (2)Skin Tone (3) Theater Mode (3) Sharpness (4) Game Mode (4) Saturation (5) Night View Mode (5) Position (For VGA only) (6) Focus (For VGA only) Input Select System Setup...
  • Page 10: Disassembly & Assembly

    V. Disassembly & Assembly 1. Precaution Please read the precautions as follows to prevent any damages to the LCD Monitor and also select the appropriate tools for disassembly and re-assembly. Make sure all power connection is removed. Be sure that the LCD Monitor is in power off status.
  • Page 11: Suggest Tools

    2. Suggest Tools Here are some tools that can be used for the LCD monitor’s service and repair. Philips-head Screwdriver Use a Philips-head screwdriver to fasten/remove the K- or B-typed screws P/N:N/A Gloves To protect LCD Panel and your hand P/N: (L) 16-003300131 (M) 16-003300130 C/D Disassembly Tool Use C/D Disassembly Tool to open cosmetic cover and avoid scratch.
  • Page 12: Disassembly Procedure

    Information in this section is to perform the disassembly procedure of the LCD monitor. Depending on the failures, replace the defective parts accordingly. Asus MW221/201 LCD Monitor consists of various subsystems. This section describes the procedures for LCD monitor disassembly. In addition, the detailed disassembly procedures of individual subsystem will be provided for your service needs.
  • Page 13: Stand Subsystem

    3.1 Stand Subsystem 1. Press the button on STAND, and then pull down to dismount BASE. 2. Release 3 screws on STAND. 3. Pull down STAND to dismount.
  • Page 14: Board Subsystem

    3.2 Board Subsystem Back Cover 1. Release 4 screws on the BACK COVER. 2. Press the latch to dismount VESA COVER. 3. Following the steps, open all latches at four sides of BEZEL, and then take away Back Cover...
  • Page 15 Shielding 1. Remove 6 screws on the MAIN SHIELDING. 2. Pull down to remove MAIN SHIELDING. Cables 1. Unplug AUDIO CABLE.
  • Page 16 2. Disconnect POWER CABLE with MAIN BOARD. 3. Unplug KEY BOARD CABLE。 Boards 1. Release 2 screws on AUDIO BOARD to dismount. 2. Remove 5 screws on MAIN BOARD.
  • Page 17 3. Remove 4 screws on VGA PORT and DVI PORT. 4. Pull out the MAIN BOARD slightly, but do not remove it. 5. Unplug the LVDS CABLE,and then take away MAIN BOARD. 6. Unplug LAMP CABLES.
  • Page 18 7. Remove 5 screws on POWER BOARD. 8. Remove POWER BOARD.
  • Page 19: Panel Subsystem

    3.3 Panel Subsystem 1. Remove 2 screws on I/O BRACKET, and then pull down to dismount it. 2. Remove 3 pieces of TAPE. 3. Release 2 screws on PANEL FRAME.
  • Page 20 4. Separate LCD PANEL form BEZEL. 5. Loose 4 screws on left and right side of LCD PANEL. 6. Separate PANEL FRAME from LCD PANEL.
  • Page 21: Bezel Subsystem

    3.4 Bezel Subsystem 1. Remove 1 TAPE on KEY BOARD. 2. Release 2 screws on KEY BOARD. 3. Turn over KEY BOARD, and then unplug SPEAKER CABLES and KEY BOARD CABLE, and then remove KEY BOARD.
  • Page 22 4. Remove 4 screws on SPEAKERS to dismount them form BEZEL.
  • Page 23: Assemble Procedure

    Information in this section is to perform the assembly procedure of the LCD monitor. Asus MW221/201 LCD monitor consists of various subsystems. This section describes the procedures for LCD monitor assembly. In addition, the detailed assembly procedures of individual modules will be provided for your service needs.
  • Page 24: Bezel Subsystem

    4.1 Bezel Subsystem 1. Assemble Speakers on BEZEL, and tighten 4 screws on them. 2. Plug KEY BOARD CABLE and SPEAKER CABLES with KEY BOARD.
  • Page 25 3. Mount KEY BOARD on BEZEL, and then tighten 2 screws on it. 4. Paste 1 TAPE.
  • Page 26: Panel Subsystem

    4.2 Panel Subsystem 1. Assemble PANEL FRAME with LCD PANEL 2. Tighten 4 screws on left and right side of PANEL FRAME. 3. Mount LCD SUBSYSTEM with BEZEL. 4. Secure 2 screws on PANEL FRAME.
  • Page 27 5. Paste 3 pieces of TAPE. 6. Assemble I/O BRACKET, and then tighten 2 screws on it.
  • Page 28: Board Subsystem

    4.3 Board Subsystem Boards 1. Assemble POWER BOARD. 2. Tighten 5 screws on POWER BOARD. 3. Plug LAMP CABLES.
  • Page 29 4. Connect LVDS CABLE with MAIN BOARD. 5. Mount the MAIN BOARD. 6. Secure 2 screws on VGA PORT and DVI PORT. 7. Tighten 5 screws on MAIN BOARD.
  • Page 30 8. Mount AUDIO BOARD, and then secure 2 screws on it. Cables 1. Plug KEY BOARD CABLE. 2. Connect POWER CABLE with MAIN BOARD. 3. Connect AUDIO CABLE.
  • Page 31 Shielding 1. Locate MAIN SHIELDING and then push up to mount. 2. Secure 5 screws on MAIN SHIELDING. Back Cover 1. Install the BACK COVER, and then press four sides of it to lock all latches. 2. Place VESA COVER on the BACK COVER, and then press to lock it.
  • Page 32 3. Secure 3 screws on the BACK COVER.
  • Page 33: Stand Subsystem

    4.4 Stand Subsystem Insert STAND into BACK COVER. 2. Tighten 3 screws on STAND. 3. Assemble the BASE under STAND.
  • Page 34: Hw Block Diagram

    9. HW Block Diagram Flat Panel and CCFL backlight Power Board Main Board RS232 (Include, Connector adapter, inverter) For white balance adjustment in Audio factory mode Board Board Video signal, DDC AC-IN HOST 100V~240V Computer MW221/20...

This manual is also suitable for:

Mw221uMw201u