Đang tải... (xem toàn văn)
Giáo trình sửa chữa màn hình LCD - Chương
LCD Monitor Service Guide for L2 (Module) Repair Models: PG191 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 2006.09.06 First Release Index I. PG191 LCD Monitor Overview 4 II. Product Specification 5 III. MMI .6 1. Front side .6 2. Back side .8 3. Side view .9 IV. Menu & Operating Mode .10 V. Disassembly & Assembly 11 1. Precaution .11 2. Suggest Tools 12 3. Disassembly Procedure .13 3.1 Stand Subsystem .14 3.2 Board Subsystem 19 3.3 Bezel Subsystem .28 3.4 Panel Subsystem .30 4. Assemble Procedure .32 4.1 Panel Subsystem .33 4.2 Bezel Subsystem .35 4.3 Board Subsystem 37 4.4 Stand Subsystem .46 VI. HW Block Diagram .51 I. PG191 LCD Monitor Overview The LCD monitor features high-quality audio technology, including a detachable 15W ASUS Power Bass System and the most advanced SRS TruSurround XTnd sound effect which help provide vivid melody, enhancing your audio enjoyment while you watch movies, play games, or listen to music! The build-in 1.3 megapixel webcam on top of the LCD panel has both video recording and snapshot functions, allowing you to capture images, create videos, of hold a video conference! Besides, a host of user-friendly functions such as the rotating swivel, adjustable tilt, and smart touch sensor buttons facilitate the usage of the monitor, upgrading your work efficiency. Main Features include: z 19’’ TFT LCD Monitor z True resolution:1280x1024(SXGA) z 2ms(gray to gray) quick response time z 5Wx2 stereo speakers z 1.5W Power Bass System z SRS TruSurround XTnd sound effect z 3 USB 2.0 ports z Built-in 1.3 megapixel webcam z 5 SPLENDIDTM Video preset modes switched by hotkey z 3 skin-tone selections z 5 sound preset modes switched by hotkey z Touch sensor controls z Both VGA and DVI-D inputs z Headphone output & Microphone input z VESA Display Data Channel DDC2B compliance z VESA wall mount compliance(100x100) 5II. Product Specification Technical Specification Panel Size 19" Response Time 2ms (Gray to Gray) Brightness (Max.) 320cd/m2 Contrast Ratio (Max.) 800:1 Viewing Angle (H/V) 160/160 Max. Resolution SCGA 1280X1024 Pixel Pitch 0.294mm Display Color 16.2M Panel ZBD Yes Splendid (Video Intelligence) Yes Digital 24-Pin DVI-D Analog 15-Pin D-Sub PC Audio Line-in 3.5mm Mini-jack USB 2.0 2.0x 3 ports 1.3 mega-pixel Webcam Yes ( USB 2.0 interface) Inputs Microphone 3.5mm Mini-jack Speaker 5Wx 2 Stereo Woofer 15W Output Headphone 3.5 mm Mini-jack Tile +25~-5 Swivel +60~-60 Wall Mounting (VESA) Yes(100mm) ME Color Shining Black +Silver Security Kensington lock Yes Power Source AC: 100~240V Power on mode <90W Power Standby mode <2W Net (WxHxD) 445x436x240 mm Dimension Packing (WxHxD) 516x527x298 mm Net 10.5kg Weight Gross 13kg Accessory Quick Start Guide, support CD, Power Cord, 4-in-1 cable, DVI cableRegulation Approval Energy Star, UL/cUL, CB, CE, FCC, CCC, BSMI, Gost-R, C-Tick, VCCI, RoHS, MIC, WEEE III. MMI 1. Front side 1. ♫ Sensor z Use this hotkey to switch to any of the five sound preset modes( Standard Mode, Fighting Game Mode, Strategic Game Mode, Theater Mode, Music Mode) 2. MENU Sensor z Touch this sensor to active the OSD (on-Screen Display) main menu. z Touch this sensor to enter/select the item (function) highlighted while the OSD menu is activated. 3. +/▲ Sensor z Touch this sensor to increase the value of the function selected or move to the next function. z This is also a hotkey for Brightness adjustment. 4. –/▲ Sensor z Touch this sensor to decrease the value of the function selected or move to the previous function. z This is also a hotkey for Volume adjustment. 5. Sensor z Use this hotkey to switch to any of the five video preset modes (Standard Mode, Theater Mode, Game Mode, Night View Mode, 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 2-3 seconds. 76. Sensor z Touch this sensor to turn the monitor on/off LED Status Description Blue Power ON Amber Standby mode OFF Power OFF 2. Back side 1. AC-in port 2. DVI port 3. VGA port 4. Audio-input port 5. Woofer port 6. Microphone-output port 7. USB port (Upstream) 3. Side view 1. SRS On/Off button. Press this button to turn on/off the SRS sound effect. 2. USB 2.0 ports. These three Universal Series Bus (USB) port are available for connecting USB 2.0 devices. 3. Microphone port. This port connects a microphone with a mini-plug (3.5mm). 4. Headphone port. This port connects a headphone with a stereo mini-plug (3.5mm). IV. 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 (3) Sharpness (4) Saturation (5) Position (For VGA only)(6) Focus (For VGA only) (1) Color Temp. (2)Skin Tone Input Select System Setup Sound (1) VGA (2) DVI (1) OSD Setup (2) Language (3) Information (4) Reset (1) Preset Mode (2) SRS TSXT (3) True Bass (4) Balance (5) Equalizer (6) Melody 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 VESA 1152×864 67.50KHz 76Hz 108.00MHz ＊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. [...]... 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... latches along the edges of LCD BEZEL to dismount LCD PANEL 30 3 Remove 4 screws on both sides 4 Lift and dismount LCD SHIELDING 5 Remove 3 pieces of TAPE 6 Disconnect LVDS CABLE 31 4 Assemble Procedure Information in this section is to perform the assembly procedure of the LCD monitor Asus PG191 LCD monitor consists of various subsystems This section describes the procedures for LCD monitor assembly In... 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... 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 P/N: 13GV0400PZZZZ Spacer Screwdriver Use a spacer screwdriver to fasten/remove spacer screws or hex screws P/N: N/A 12 3 Disassembly Procedure Information in this section is to perform the disassembly procedure of the LCD monitor Depending on the failures,... Subsystem 4.3 Board Subsystem 4.4 Stand Subsystem 32 4.1 Panel Subsystem 1 Insert LVDS cable carefully 2 Paste 3 pieces of TAPE 3 Assemble LCD panel and LCD SHIELDING 33 4 Tighten 4 screws on both sides 5 Locate PANEL MODULE in BEZEL and press down to fix it 6 Secure 6 screws on LCD SHIELDING 34 4.2 Bezel Subsystem Camera Module 1 Mount CAMERA MODULE 2 Tighten 1 screw on left camera cable 3 Paste 1 piece of... Information in this section is to perform the disassembly procedure of the LCD monitor Depending on the failures, replace the defective parts accordingly Asus PG191 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 The disassembly procedure... open all latches along edges of BACK COVER 19 4 Lift and remove BACK COVER Main Board Shielding 1 Remove 2 pieces of TAPE on MAIN SHIELDING 2 Remove 7 screws on MAIN SHIELDING 3 Remove 6 screws on DC-INPUT, DVI PORT and VGA PORT 20 4 Pull down MIAN SHIELDING, and then open it, but do not remove it 5 Unplug KEY BOARD CABLE, and then take it out of MAIN SHIELDING Main Board 1 Remove 3 pieces of TAPE . (Video Intelligence) Yes Digital 24-Pin DVI-D Analog 15-Pin D-Sub PC Audio Line-in 3.5mm Mini-jack USB 2.0 2.0x 3 ports 1.3 mega-pixel Webcam Yes ( USB 2.0 interface). 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