Giáo trình sửa chữa màn hình LCD - Chương
LCD Monitor Service Guide for L2 (Module) Repair Model: PW191 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 3Index I. PW191 LCD Monitor Overview .1 II. Product Specification 2 III. MMI .3 Front side 3 Back side 4 IV. Menu & Operating Mode .5 V. Disassembly & Assembly 6 1. Precaution .6 2. Suggest Tools 7 3. Disassembly Procedure .8 3.1 Stand Subsystem .9 3.2 Board Subsystem 15 3.3 Panel Subsystem .24 4. Assemble Procedure .27 4.1 Panel Subsystem .28 4.2 Board Subsystem 30 4.3 Stand Subsystem .38 VI. HW Block Diagram .44 I. PW191 LCD Monitor Overview PW191 is the first 19” wide screen LCD monitor with anti-reflection glare panel providing more vivid color to entertain your eyes. Main product features include z 19“ Wide Screen (Aspect Ratio 16:10) z High Resolution: 1400*900 (WXGA+) z Anti-Reflection Glare Type Panel (Color Shine) z SPLENDID™ Video Intelligence Technology z 5 Video Preset Mode Selections via a Hotkey z Pivot / Height Adjustment / Tilt / Swivel z Aluminum Base z Touch Sensor Buttons z Built-in Stereo Speakers z VESA Wall Mounting Compliance 2II. Product Specification Technical Specification Panel Size 19" Wide (16:10) Anti-Reflection Glare Yes Resoponse Time 8ms Brightness (Max.) 330cd/m2 Contrast Ratio (Max.) 600:1 Viewing Angle (H/V) 150/130 Max. Resolution WXGA+ 1440*900 Pixel Pitch 0.285mm Display Color 16.2M Panel ZBD Yes Spendid (Video Intelligence) Yes Digital 24-Pin DVI-D Analog 15-Pin D-Sub Inputs PC Audio Line-in 3.5mm mini jack Earphone Yes Output Speaker 2W x 2 Stereo Tile +90~-5 Height Adjustment Yes(double hinge) Pivot Yes (0/90) Swivle +60~-60 Wall Mounting (VESA) Yes(100mm) ME Color Shining Black+Silver Security Kensington lock Yes Power Supply AC: 100~240V Power on mode <48W Power Standy by mode <2W Net (WxHxD) 520x490x280 mm Dimension Packing (WxHxD) 619x443x207 mm Net 8.5kg Weight Gross 10.8kg Accessory DVI cable, D-sub cable, Audio cable, AC Adapter, Power cord, Quick Start Guide, Support CD (User Manual, Pivot Pro) Regulation Approval Energy Star, UL/cUL, CB, CE, FCC, CCC, BSMI, Gost-R, C-Tick, VCCI, RoHS, MIC, WEEE 3III. MMI Front side 4Back side 5IV. 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 (1) <VGA/DVI> (1) Volume (2) OSD Setup (3) Language (4) Information (5) Reset Supported Operating Mode 6V. 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. 72. 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. P/N: 13GV0400PZZZZ Spacer Screwdriver Use a spacer screwdriver to fasten/remove spacer screws or hex screws. P/N: N/A [...]... screws on both sides 4 Lift and dismount LCD SHIELDING 25 5 3 tapes and LVDS cable can be re-used for panel SWAP 26 4 Assemble Procedure Information in this section is to perform the assembly procedure of the LCD monitor Asus PM191 LCD monitor consists of various subsystems This section describes the procedures for LCD monitor assembly In addition, the detailed assembly procedures of individual modules... Unplug 4 LCD lamp power cables carefully 2 Remove 4 screws and then remove POWER BOARD 22 Speaker Module 1 Remove 3 tapes, and open the WIRE SADDLE to release speaker cable 2 Remove 4 screws on the back of both SPEAKER 23 3.3 Panel Subsystem 1 Remove 6 screws 5 6 1 2 3 4 2 Hold the handle to lift the LCD panel and separate from BEZEL carefully 24 3 Remove 4 screws on both sides 4 Lift and dismount LCD SHIELDING...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 PW191 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... Board subsystem 4.3 Stand subsystem 27 4.1 Panel Subsystem 1 Insert LVDS cable carefully and sticker 3 tapes to fix cables 2 Assemble LCD panel and LCD SHIELDING 28 3 Tighten 4 screws on both sides 4 Locate panel module in BEZEL and press down to fix it 5 Secure 6 screws on LCD SHIELDING 5 6 1 2 3 29 4 4.2 Board Subsystem 1 Locate SPEAKER module in BEZEL, make sure longer (red) cable on left and shorter... right, and tighten 4 screws 2 Pack up speaker cable into wire saddle 3 Paste 3 tapes to fix the speaker cable 30 Power Board 1 Place POWER BOARD on the shielding, and secure 4 screws 2 4 1 3 2 Insert 4 LCD lamp cables 31 Main Board 1 Locate MAIN BOARD on the shielding 2 Secure 6 screws 3 5 4 2 1 6 32 3 Insert LVDS cable and press down connector door carefully Stick one tape to fix the cable 4 Connect . Yes Digital 24-Pin DVI-D Analog 15-Pin D-Sub Inputs PC Audio Line-in 3.5mm mini jack Earphone Yes Output Speaker 2W x 2 Stereo Tile +90 ~-5 Height Adjustment. 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