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Giáo trình sửa chữa màn hình LCD - Chương1
LCD Monitor Service Guide for L2 (Module) Repair Model: MB17SE 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 2Release Version List Version Issue Date Remarks v1.0 2006.09.05 First Release 3Index I. MB17SE LCD Monitor Overview .1 II. Product Specification 2 III. MMI .3 Front side 3 Back side 5 IV. Menu & Operating Mode .6 V. Disassembly & Assembly 7 1. Precaution .7 2. Suggest Tools 8 3. Disassembly Procedure .9 3.1 Stand Subsystem .10 3.2 Board Subsystem 11 3.3 Panel Subsystem .20 3.4 Bezel Subsystem .22 4. Assemble Procedure .23 4.1 Bezel Subsystem .24 4.2 Panel Subsystem .25 4.3 Board Subsystem .27 4.4 Stand Subsystem .35 VI. HW Block Diagram .36 I. MB17SE LCD Monitor Overview Main product features include z 17“ LCD Monitor z Recommended Resolution: 1280*1024 z MB17SE:5 ms (Tr+Tf) Quick response time z SPLENDID™ Video Enhancement Technology by hotkey z 3 Skin-tones selection z Built-in Stereo Powerful Speakers z 5 Video Preset Mode Selections via a Hotkey z VGA input z VESA Display Data Channel DDC2B compliance z VESA wall mount compliance 2II. Product Specification Technical Specification Panel Size 17" Standard screen Response Time 5ms Brightness (Max.) 320cd/m2 Contrast Ratio (Max.) 700:1 Viewing Angle (H/V) 160/160 Max. Resolution SXGA 1280*1024 Pixel Pitch 0.264mm Panel Display Color 16.2M Splendid (Video Intelligence) Yes Analog 15-Pin D-Sub Inputs Audio Line-in 3.5mm mini jack Headphone port 3.5mm mini jack Output Speaker 2W x 2 Stereo Tile +20~-5 Wall Mounting (VESA) Yes(101mm) ME Color Gray + Silver Security Kensington lock Yes Power Supply AC: 100~240V Power on mode <55W Power Standy by mode <2W Net (WxHxD) 375x388x224 Dimension Packing (WxHxD) 423x470x138 mm Net 8.5kg Weight Gross 5.8kg Accessory D-sub cable, Audio cable, Power cord, Quick Start Guide, Support CD Regulation Approval TC003,Energy Star 2006, UL/cUL, CB, CE, FCC, CCC, BSMI, Gost-R, C-Tick, \PSB, MIC, WHQL 3III. MMI Front side 1. Headphone port . This is port connects a headphone with a stereo mini-plug (3.5 mm) 2. “S” Button: z Use this hotkey to switch from five video preset modes (Standard Mode, Theater Mode, Game Mode, Night View Mode, and Scenery Mode) with SPLENDIDTM Video Intelligence Technology. z Exit the OSD menu or go back to the previous menu as the OSD menu is active. z Automatically adjust the image to its optimized position, clock, and phase by touching the sensor for 2-4 seconds. 3. “–” Button: z Press this button to decrease the value of the function selected or move to the previous function. z This is also a hotkey for Volume adjustment. 4. “+” Button z Press this button to increase the value of the function selected or move to the next function. z This is also a hotkey for Brightness adjustment. 5. MENU Button z Press this button to enter/select the icon (function) highlighted while the OSD menu is activated. 4 6. Sensor z Press this sensor to turn the monitor on/off z The table below shows the status of the LED indicator beside this button. LED Status Description Blue Power ON Amber Standby mode OFF Power OFF 5Back side 1. AC-in Port. This port connects the power connector by the bundled power cord. 2. VGA port. This 15-pin port is for PC VGA connection. 3. Audio-in port. This port connects PC audio source by the bundle audio cable. 6IV. Menu & Operating Mode Menu Splendid Image Color (1) Scenery Mode (2) Standard Mode (3) Theater Mode (4) Game Mode (5) Night View Mode (1) Brightness (2) Contrast (1) Color Temp (2) Skin Tone (3) RGB Input Select System Setup (1) <VGA> (1) OSD Setup (2) Image Setup (3) input select (MB19TU only)(4) Information (5) Language (6) Reset Supported Operating Mode Standard Resolution Horizontal Frequency Vertical Frequency Pixel Frequency DOS 720×400 31.47KHz 70Hz 28.32MHz 640×480 31.47KHz 60Hz 25.18MHz 640×480 37.90KHz 72Hz 31.50MHz VGA 640×480 37.50KHz 75Hz 31.50MHz 800×600 35.16KHz 56Hz 36.00MHz 800×600 37.90KHz 60Hz 40.00MHz 800×600 48.10KHz 72Hz 50.00MHz SVGA 800×600 46.90KHz 75Hz 49.50MHz 1024×768 48.40KHz 60Hz 65.00MHz 1024×768 56.50KHz 70Hz 75.00MHz XGA 1024×768 60.02KHz 75Hz 78.75MHz 1280×1024 64.00KHz 60Hz 108.00MHz SXGA 1280×1024 78.00KHz 75Hz 135.00MHz ＊Modes not listed in the table may not be supported. For optimal resolution, we recommend that you choose a mode listed in the table above. 7V. 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. Prepare soft cloth and sponge as working platform to place LCD monitor horizontally. Hold LCD by the side carefully and DON’T touch or press panel directly. Remove all rings, watches and any other metal objects from your hands which possible to cause scratch. Always wear a ground strap or anti-static glove to protect the parts from static discharge. ESD (electro-static discharge) protection is required to guarantee the safety of product and personnel. [...]...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) 1 6-0 03300131 (M) 1 6-0 03300130 C/D Disassembly Tool Use C/D Disassembly Tool to open cosmetic cover and avoid scratch... screws P/N: N/A 8 3 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 MB17SE 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... screwdriver to remove 2 screws on D-SUB PORT 16 6 Release 5 screws on MAIN BOARD 7 Remove MAIN BOARD Power Board 1 Remove 2 screws on POWER BOARD SHIELDING 17 2 Pull down to remove POWER BOARD SHIELDING 3 Unplug LAMP CABLES 4 Release 4 screws on POWER BOARD 18 5 Remove 2 screws on AC-IN PORT 6 Take out POWER BOARD 19 3.3 Panel Subsystem 1 Remove 4 screws on PANEL FRAME 2 Dismount LCD PANEL from BEZEL 3 Remove... BEZEL 2 Remove 8 screws on SPEAKERS to dismount them 22 4 Assemble Procedure Information in this section is to perform the assembly procedure of the LCD monitor Asus MB17SE 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 The assembly procedure... Subsystem 1 Plug LVDS CABLE 2 Paste 1 piece of TAPE on LVDS CABLE 3 Assemble PANEL FRAME with LCD PANEL, and then tighten 4 screws on both sides 25 4 Locate LCD in BEZEL and press down to fix it 5 Secure 4 screws on PANEL FRAME 26 4.3 Board Subsystem Power Board 1 Mount POWER BOARD 2 Tighten 2 screws on AC-IN PORT 3 Secure 4 screws on POWER BOARD 27 4 Plug 4 LAMP CABLES 5 Push up to mount POWER BOARD... 5 Push up to mount POWER BOARD SHIELDING 6 Tighten 2 screws on POWER BOARD SHIELDING 28 Main Board 1 Install MAIN BOARD 2 Tighten 5 screws on MAIN BOARD 3 Use space screwdriver to secure 2 screws on D-SUB PORT 29 4 Plug LVDS CABLE, and then cover LVDS CABLE COVER 5 Paste 1 piece of TAPE 6 Push up to assemble MAIN BOARD SHIELDING 7 Tighten 2 screws on MAIN BOARD SHIELDING 30 Key Board 1 Connect POWER . 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. Intelligence) Yes Analog 15-Pin D-Sub Inputs Audio Line-in 3.5mm mini jack Headphone port 3.5mm mini jack Output Speaker 2W x 2 Stereo Tile +20 ~-5 Wall Mounting