ACER AL1916W液晶显示器维修手册
液晶电视维修手册

*以LA40A750为例
8
I. LCD TV内部结构(IP电源)
T – CON 板
CN1
CNI803 CN103 CNI806 CN801
CN6105_FFC CN6001_LCD
背光驱动 (BL Driver)
IP电源板 (IP Board)
CNI801 CNI802
CN1001
主板 (Main Board)
2%
yes
⑤
FRCM测试故障?
no no
yes
⑥
T-Con板不 良
5% 更换LVDS线后 是否有故障?
FBE测试故障?
yes
no
no
更换T-Con板后 是否有故障?
LVDS线不良 yes
77%
yes
液晶屏不良
16
III-3. 间歇性无图像
非故障检查项目: 检查是否电源线接触不良? 故障检查项目:
故障发生时待机 灯是否点亮?
24
注意:具体型号接口定义以维修手册为准
附. 排线接口检测方法
接口④------屏幕亮度(Dimming)控制(部分型号Dimming控制端在主板电源接口中)
PIN NAME 1 SW_inverter 2 Ana_dimming 3 PWM_dimming 4 GND 5 GND
功能定义:
-- SW_inverter -- Ana_dimming -- PWM_dimming 控制屏幕逆变器 约5V 屏幕明暗控制 屏幕明暗控制PWM方式, 占空比 40%~90%
no no
3%
yes
⑥
FBE测试故障?
18% 更换LVDS线后 是否有故障?
yes
笔记本电脑维修指导手册

笔记本电脑维修指导手册二零零三年一月目录一、笔记本电脑维修介绍---------------------------------------------------------------------- 3二、笔记本电脑维修思路指导---------------------------------------------------------------- 41、拆装前注意事项----------------------------------------------------------------------------- 42、拆卸时需要的注意事项-------------------------------------------------------------------- 4三、维修思路方法及判断指导--------------------------------------------------------------- 51、一般维修顺序指导--------------------------------------------------------------------------- 52、维修判断思路指导--------------------------------------------------------------------------- 6 2.1 、维修判断原则、方法-------------------------------------------------------------------- 6 2.2 、维修判断方法、思路-------------------------------------------------------------------- 6 2.3 、维修判断过程中应注意的问题-------------------------------------------------------- 82.4 、功能测试工具在维修判断中的应用---------------------------------------------------93、维修判断指导----------------------------------------------------------------------------------10 附录维修基本流程图前言本手册的编写宗旨是:规范维修工程师在进行电脑产品维修过程中的行为,并为判断及定位故障提供通用的一般方法。
液晶显示器维修手册

North/Latin America Europe/Africa Asia/Oceania COLOR MONITOR SERVICE MANUAL MODEL: E2360S (E2360S-PN W.A**NAP for LGD LM230WF5-TRA1)/E2360T (E2360T-PN W.A**NAP forLGD LM230WF5-TRA1) **Sales MarketCAUTIONBEFORE SERVICING THE UNIT,READ THE SAFETY PRECAUTIONS IN THIS MANUAL.*To apply the M-STAR Chip.Copyright © 2010 LG Electronics. Inc. All right reserved. - 2 - LGE Internal Use Only CONTENTSSPECIFICATIONS ..........................................................2 PRECAUTIONS ..............................................................3 TIMING CHART ..............................................................7 DISASSEMBLY .............................................................8 BLOCK DIAGRAM.........................................................10 DISCRIPTION OF BLOCK DIAGRAM . (12)ADJUSTMENT ............................................................. 13 SERVICE MODE ......................................................... 16 TROUBLESHOOTING GUIDE .................................... 17 WIRING DIAGRAM ...................................................... 23 EXPLODED VIEW........................................................ 24 SCHEMATIC DIAGRAM.. (26)SPECIFICATIONSE2360S&T1. LCD CHARACTERISTICS Type: Flat Panel Active matrix-TFT LCD Active Display Area: 23.0 inches/58.4 cmPixel Pitch: 0.265 mm x 0.265 mmSurface Treatment: Anti-Glare coating Resolution: Max: VESA 1920x1080@60Hz.Recommend: VESA 1920x1080@60Hz.Video Input:Signal Input: 15 pin D-Sub Connector; DVI-D Connector (Only for E2360T)Input Form: RGB Analog (0.7 Vp-p/75 ohm)Digital (Only for E2360T) Plug&Play: DDC2AB (Analog)DDC2B (Digital) (Only for E2360T)2. POWER SUPPLY 2-1. Power: 12V==3.0A2-2. Power Consumption On Mode: 30W (Typ.) Sleep Mode: ≤ 1 W Off Mode: ≤ 0.5 W3. Sync Input Horizontal Freq. 30 kHz to 83 kHz (Automatic)Vertical Freq. 56 Hz to 75 Hz (Automatic) Input Form Separate Sync.Digital (Only for E2360T)4. ENVIRONMENT4-1. OperatingTemperature: 10°C to 35°CHumidity: 10 % to 80% non-Condensing 4-2. StorageTemperature: -20°C to 60 °CHumidity: 5 % to 90 % non-Condensing5. DIMENSIONS (with Stand) Width 54.23 cm (21.35 inch) Height 41.20 cm (16.22 inch) Depth 17.20 cm (6.77 inch) DIMENSIONS (without Stand) Width 54.23 cm (21.35 inch) Height 40.83 cm (16.07 inch) Depth 3.10 cm (1.22 inch)6. WEIGHT (excl. packing) Weight: 2.6 kg (5.73 lb)Copyright © 2010 LG Electronics. Inc. All right reserved. - 3 - LGE Internal Use OnlyTIMING CHARTE2360S&TDisplay Modes (Resolution)Horizontal Freq. (kHz) Vertical Freq. (Hz)1 720 x 400 31.468 702 640 x 480 31.469 603 640 x 480 37.500 754 800 x 600 37.879 605 800 x 600 46.875 756 1024 x 76848.363 607 1024 x 76860.123 758 1152 x 86467.500 759 1280 x 102463.981 6010 1280 x 1024 79.976 7511 1680 x 1050 65.290 60*12 1920 x 1080 67.500 60*Recommend ModeDISASSEMBLY-Set#1Put the monitor on a soft flat. #2Remove the base ass’y.Turn the screw by using the screw handle. #3Remove the Rear Cover ass’y. #4The Rear Cover ass’y. #5Disconnect all the wires/FFC cable.#6Remove the main frame.#7Main frame and main board. #8The panel.Note: DVI only for E2360T.BLOCK DIAGRAMNote: DVI only for E2360T.CONVERTER BLOCK DIAGRAM ConverterDESCRIPTION OF BLOCK DIAGRAM1. Video Controller Part.This part amplifies the level of video signal for the digital conversion and converts from the analog video signal to the digital video signal using a pixel clock.The pixel clock for each mode is generated by the PLL.The range of the pixel clock is from 25MHz to 149MHz.This part consists of the Scalar, ADC converter, TMDS receiver.The Scalar gets the video signal converted analog to digital, interpolates input to 1920 x 1080 resolution signal and outputs 8-bit R, G, B signal to transmitter.2. Power Part.This part consists of the one 3.3V regulators to convert power which is provided 12V in Adapter board, 12V is provided for convert circuit.3. MICOM Part.This part is including video controller part. And this part consists of Reset IC and the Micom.The Micom distinguishes polarity and frequencies of the H/V sync are supplied from signal cable.The controlled data of each mode is stored in scalar.ADJUSTMENTWindows EDID V1.0 User ManualOperating System: DOS, windows98, 2000, XP1. Parallel port settingEnter your bios, and do as followings.a) Integrated peripheralb) Super IO Devicec) Parallel port modeyou should set the” parallel port mode” to SPP for using the DOS EDID tool surely.2. EDID Write1. Connect the signal line of monitor with DDC recorder.2. Choose the DDC RECORD program, and it shows on the screen, then choose the correct source base on the monitor.3. Click “LoadFile”, then key in the manufacturer name, model name, product code, then choose the correct model name base on the monitor.(as Fig.2)4. Scan serial No. to DDC recorder by Bar Reader, then read again in the Verify SN.5. According to the message of DDC program, when the picture as fig.1 appears, it will show DDC record has finished.E2360S (Analog only)Fig.1Please check Manufacturer Name, Vendor Assigned Code, Monitor Name, Serial Number:*****[????????*****] (it must be the same as Bar Code),Week of Manufacture:**,Year of Manufacture:****,Checksum:** (It must be the same as the last byte of data table, as follows picture shows). Above of all must be right, then if it shows the green “PASS”, it means record succeeds ,the red “Fail” means record fails; Then check the power supply and signal line, and ensure they are connected well ,then do DDC record again from the third step.E2360S (Analog only)Fig.2TROUBLESHOOTING GUIDE1. NO POWER2. NO RASTER (OSD IS NOT DISPLAY)-LIPS3. NO RASTER (OSD IS NOT DISPLAY)-MSTAR4. TROUBLE IN DPM5. POWER6. RASTERWIRING DIAGRAMNote: DVI only for E2360T.EXPLODED VIEW PARTS LISTRef. No. TPV part No.LGE part No.Description010 705GFACS016 ABJ73308504 BEZEL ASS'Y 020 KEPCAQG1 EBU60704503 KEY BOARD 030 LEPCAQG1EBU60934810LED BOARD040 750GMT230W5A11M0LG COV30101224 PANEL LM230WF5-TRA1-7F1-A0 FQ LTD 050756GQACB-KL010--00 EBU60714340 MAIN BOARD(CBPCAAWLGQ3)-E2360S 756GQACB-KL009--00EBU60714341 MAIN BOARD(CBPCAARLGQ3)-E2360T060Q15G0909101101 MDQ62638101MAINFRAME-E2360S Q15G0909101201 MDQ62638102 MAINFRAME-E2360T 070 705GFACS012 ACQ83873708 REAR COVER ASS'Y-E2360S 705GFACS013ACQ83873709 REAR COVER ASS'Y-E2360T 080 705GFACS004 ACQ83873802 BASE ASS'Y 090 095G176J-10V01 COV30101415 FFC CABLE 10PIN 275MM 0.5MM 100 095G176J-50528 COV30101418 FFC CABLE 50 182 0.5 110 095G8022-7W506 N/A HARNESS 7P-6P+3P 250/300 120088G-35315FVCLN/AD-SUB CABLE 1500MMSCHEMATIC DIAGRAM1. Main BoardE2360S&TInput (DVI only for E2360T)Copyright © 2010 LG Electronics. Inc. All right reserved. - 26 - LGE Internal Use Only5Copyright © 2010 LG Electronics. Inc. All right reserved. - 27 - LGE Internal Use OnlyCMVCC12,3,5Copyright © 2010 LG Electronics. Inc. All right reserved. - 28 - LGE Internal Use OnlyCopyright © 2010 LG Electronics. Inc. All right reserved. - 29 - LGE Internal Use OnlyCopyright © 2010 LG Electronics. Inc. All right reserved. - 30 - LGE Internal Use Only2. Key BoardCopyright © 2010 LG Electronics. Inc. All right reserved. - 31 - LGE Internal Use Only3. LED BoardCopyright © 2010 LG Electronics. Inc. All right reserved. - 32 - LGE Internal Use OnlyJul.2010 P/NO: Printed in China。
ViewSonic VA1916w LCD Display 说明书

ViewSonic®VA1916wLCD DisplayModel No. : VS12085内容TCO信息 (i)电磁相容信息 (1)重要的安全指示 (2)中国电子信息产品污染控制标识要求 (3)版权信息 (4)产品注册 (4)开始包装内容 (5)注意事项 (5)快速安装 (6)墙壁安装(可选) (7)使用LCD显示器设置定时模式 (8)菜单和电源按键锁定设置 (8)调整屏幕图像 (9)主菜单控件 (11)其它信息技术规格 (14)故障诊断 (15)客户支持 (16)如何清洁LCD显示器 (17)有限担保 (18)TCO 信息Congratulations!The display you have just purchased carries the TCO’03 Displayslabel. This means that your display is designed, manufactured andtested according to some of the strictest quality and environmentalrequirements in the world. This makes for a high performanceproduct, designed with the user in focus that also minimizes theimpact on our natural environment.Some of the features of the TCO’03 Display requirements:ErgonomicsGood visual ergonomics and image quality in order to improve the working environment for the user and to reduce sight and strain problems. Important parameters are luminance, contrast, resolution, reflectance, colour rendition and image stability.Energy•Energy-saving mode after a certain time - beneficial both for the user and the environment •Electrical safetyEmissions•Electromagnetic fields•Noise emissionsEcology•The product must be prepared for recycling and the manufacturer must have a certified environmental management system such as EMAS or ISO 14000•Restrictions ona.chlorinated and brominated flame retardants and polymersb.heavy metals such as cadmium, mercury and lead.The requirements included in this label have been developed by TCO Development in co-operation with scientists, experts, users as well as manufacturers all over the world. Since the end of the 1980s TCO has been involved in influencing the development of IT equipment in a more user-friendly direction. Our labelling system started with displays in 1992 and is now requested by users and IT-manufacturers all over the world.For more information, please visit电磁相容信息FCC声明本设备符合 FCC 规则第 15 部分的规定。
笔记本电脑维修手册

笔记本电脑维修手册笔记本故障维修判断指导作为一名笔记本电脑维修工程师,不仅要对笔记本电脑的硬件、软件及笔记本电脑的结构有较全面的了解,而且还要掌握一定的维修理论与维修方法。
联想昭阳笔记本测试项目针对目前维修工程师在维修中工具和维修测试比较缺乏的现状,在技术支持处的努力下及多方面的配合,完成了昭阳笔记本电脑功能测试这个项目,在这个功能测试项目中包含了联想昭阳2001年自今的14款机型的功能测试,希望能对联想维修服务有所支持。
下面将先就维修中的有关操作及维修方法进行一些探讨,对有关问题进行一些总结。
第一节笔记本电脑维修介绍在电脑维修中,根据维修对象的不同,可分为如下的三个级别:一级维修,也叫板级维修。
其维修对象是电脑中某一设备或某一部件,如主板、电源、显示器等,而且还包括电脑软件的设置。
在这一级别,其维修方法主要是通过简单的操作(如替换、调试等等),来定位故障部件或设备,并予以排除。
例如:有一台电脑开机后无任何显示。
作为一级维修,需要判断出此现象是由于显示器的原因引起的,还是显示卡的原因引起的,甚或是主板的原因引起的,只要判断出引起故障的部件,并更换掉有故障的部件,即完成维修任务。
二级维修,是一种对元、器件的维修。
它是通过一些必要的手段(如测试仪器)来定位部件或设备中的有故障的元件、器件,从而达到排除故障的目的。
例如:在上一例中,如果是二级维修,就不仅要判断出是哪个部件,还要判断出是该部件上的哪一个器件或元件出现故障,并修复有故障的元器件,才算完成维修任务。
三级维修,也叫线路维修,顾明思意,就是针对电路板上的故障进行维修。
还是上例,如果是线路设计或线路故障引起无显示,就需要三级维修人员来维修。
这些人往往是系统的设计开发人员。
从这三个级别的维修内容来看,高一级的维修必然要包含着低一级的维修,且一级维修是所有级别维修的基础。
需要进行三级维修的电脑故障是很少很少的,最多的是二级维修和一级维修。
但在电脑行业中,由于电脑部件的成本的不断降低,再加上一级维修的成本也很低,因此一级维修的地位变得越来越重要,在现在的电脑维修中,主要采用的是一级维修。
液晶电视维修手册(pdf 84页)

主板 (小信号处理+逻辑驱动)
第二节 主板组件速判速修
1、LS08机芯(TDA15063 + GM1501方案)
派生系列 W***F8系列 W***F8P系列 TD***F8系列 18系列 18P系列 20系列
代表机型 CHD-W260F8、CHD-W270F8、CHD-W320F8、CHD-W370F8 CHD-W270F8P、CHD-W320F8P、CHD-W370F8P CHD-TD270F8、CHD-TD320F8、CHD-TD370F8 LT2618、LT3218、LT3718、LT4018、LT4219B LT3718P、LT4018P LT5520
2、LP09机芯(PW328 + PW2300方案)
派生系列 19/20系列 19P/19H/66系列 99系列 33系列
代表机型 LT4219、LT4619、LT3718H、LT4720H LT4719H、LT4219P、LT4619P、LT4266、 LT4219H LT4099、LT4299、LT4699 LT4233
LS08机芯技改方案
1. F8/18系列音量关小,有交流噪音。 解决方案:将主板功放电路位号为RA8在主板背面(15K)的电阻改为 10K或8.2K。改后若整体音量变小,请对TDA15063进行升级,以提高 TDA15063输出的伴音信号的幅度。
2. 37〞~42〞F8/18 系列电源板出现噪音 解决方案:取消自制GP03开关电源中U810、L810、D818。
目录
一、液晶电视的结构及各组件控制关系: 二、长虹液晶电视主板组件的快速识别: 三、OEM产品的快速识别和判定: 四、屏上组件的识别和判定: 五、二合一电源组件组件的识别和判定: 六、技术资料的查询和替换:
液晶显示器维修手册

液晶显示器维修手册第一章: 引言液晶显示器维修手册是为了帮助用户了解液晶显示器的维修和故障排除方法而编写的。
本手册将提供液晶显示器常见问题的解决方案和处理方法,以确保用户能够迅速恢复屏幕的正常运行。
第二章: 基础知识在进行液晶显示器维修之前,用户需要了解一些基础知识。
液晶显示器是通过液晶技术显示图像的设备。
它是由像素组成的,每个像素都由液晶层和光源背光组成。
用户需要熟悉液晶显示器的组成部分、原理和常见故障类型。
2.1 液晶显示器的组成部分液晶显示器由多个组件组成,包括面板、背光源、控制电路、接口等。
用户需要了解这些组件的功能和相互关系。
2.2 液晶显示器的工作原理液晶显示器的工作原理包括电压控制液晶颗粒来控制光的通过、背光源的照明方式以及图像传输的过程。
用户需要熟悉这些原理,以便更好地进行维修工作。
2.3 常见故障类型液晶显示器常见故障类型包括无法开机、黑屏、色彩失真、图像闪烁等。
用户需要了解每种故障类型的原因和相应的维修方法。
第三章: 维修步骤本章将详细介绍用户在维修液晶显示器时需要采取的步骤。
3.1 故障诊断在开始维修前,用户需要先进行故障诊断。
通过观察、测试和排除法等方法,找出故障产生的原因。
3.2 维修工具和材料准备用户需要准备一些常用的维修工具和材料,如螺丝刀、电压表、焊接工具等。
这些工具和材料在维修过程中起到关键作用。
3.3 维修操作步骤在进行维修操作时,用户需要按照以下步骤进行:1) 关闭电源并拔掉电源线;2) 拆卸外壳以获得维修接触面;3) 检查电源问题,如电源线是否损坏或电源板是否故障;4) 检查信号线或接口问题,确保连接良好;5) 检查背光源是否正常运行;6) 检查控制电路和面板问题;7) 清洁显示屏和其他组件;8) 重新组装并测试修复效果。
第四章: 常见故障与解决方案本章将列举液晶显示器常见的故障情况,并提供相应的解决方案。
4.1 无法开机当液晶显示器无法开机时,可能是由于电源故障、信号线松动或电源线接触不良等原因造成。
AOC 919Sw维修手册

维修手册客户 机种名 销售地区AOC 919Sw 中国大陆T98VRDNDWKA4NNET99HRDNDWKA4NNE首次发布日期: 04/2009目录1.安全与注意事项------------------------------------------------------------------------------------------------------032.技术规格---------------------------------------------------------------------------------------------------------------053.操作说明及工厂模式调整------------------------------------------------------------------------------------------084. ISP升级流程---------------------------------------------------------------------------------------------------------125.故障处理流程---------------------------------------------------------------------------------------------------------156.电气方框图------------------------------------------------------------------------------------------------------------197. PCB分布图-----------------------------------------------------------------------------------------------------------208.线路图------------------------------------------------------------------------------------------------------------------259.爆炸图------------------------------------------------------------------------------------------------------------------3310. BOM------------------------------------------------------------------------------------------------------------------3411. BOM差异比较-----------------------------------------------------------------------------------------------------421.安全与注意事项FCC 注意事项FCC B 类无线电频率干扰声明警告:(对于 FCC 认证的型号)注意:本设备已经通过测试,符合 FCC 规定第 15 部分有关 B 类数字设备的限制。