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LCD Monitor Service Guide for L2 (Module) Repair Model: MB19TU/SE 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. MB19TU/SE 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. MB19TU/SE LCD Monitor Overview Main product features include z 19“ LCD Monitor z Recommended Resolution: 1280*1024 z MB19TU:2 ms (Gray to Gray) Rapid response time MB19SE: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 and DVI-D inputs (MB19TU only) z VESA Display Data Channel DDC2B compliance z VESA wall mount compliance MB19TU MB19SE 2II. Product Specification Technical Specification MB19TU MB19SE Panel Size 19" TFT Response Time 2ms (Gray to Gray) 5ms (Tr+Tf) Brightness (Max.) 320cd/m2 300cd/m2 Contrast Ratio (Max.) 800:1 700:1 Viewing Angle (H/V) 160/160 Max. Resolution SXGA 1280X1240 Pixel Pitch 0.294mm Panel Display Color 16.2M Splendid (Video Intelligence) Yes Digital 24-Pin DVI-D NO Analog 15-Pin D-Sub Inputs Audio-in 3.5mm mini jack Headphone 3.5mm mini jack Output Speaker 2W x 2 Stereo Tile +20~ -5 Wall Mounting (VESA)Yes(100mm) ME Color Black +Silver Iron-gray/Silver Security Kensington lock Yes Power Supply AC: 100~240V Power on mode <48W Power Standy by mode <2W Net (WxHxD) 413x407x224mm Dimension Packing (WxHxD) 500x458x138mm Net 5.2kg Weight Gross 6.7kg Accessory DVI cable, D-sub cable, Audio cable, Power cord, Quick Start Guide, Support CD D-sub cable, Audio cable, Power cord, Quick Start Guide, Support CD Regulation Approval Energy Star 2006, UL/cUL, CB, CE, FCC, CCC, BSMI, Gost-R, C-Tick, PSB, MIC, WHQL TC003, Energy Star 2006, UL/cUL, CB, CE, FFC, 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. DVI port. (MB19TU only) This is 24-pin port is for PC DVI-D digital signal connection 3. VGA port. This 15-pin port is for PC VGA connection. 4. Audio-in port. This port connects PC audio source by the bundled audio cable. 6IV. Menu & Operating Mode Menu Splendid Image Color (1) Scenery Mode (2) Standard Mode (3) Theater Mode (4) Game Mode (5) Night Mode (1) Brightness (2) Contrast (1) Color Temp(2) Skin Tone(3) RGB Input Select System Setup (1) <VGA> (2) <DVI> (MB19TU only) (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 FrequencyDOS 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 MB19TU/SE 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... PORT (for MB19TU only) and D-SUB PORT 6 Release 5 screws on MAIN BOARD 16 7 Remove MAIN BOARD Power Board 1 Remove 2 screws on POWER BOARD SHIELDING 2 Pull down to remove POWER BOARD SHIELDING 17 3 Unplug LAMP CABLES 4 Release 4 screws on POWER BOARD 5 Remove 2 screws on AC-IN PORT 18 6 Take out POWER BOARD 19 3.3 Panel Subsystem 1 Remove 5 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 MB19TU/SE 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 3 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 5 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... 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 4 screws on DVI PORT (for MB19TU only) and 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 . Digital 24-Pin DVI-D NO Analog 15-Pin D-Sub Inputs Audio-in 3.5mm mini jack Headphone 3.5mm mini jack Output Speaker 2W x 2 Stereo Tile +20~ -5 Wall Mounting. 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