lenovo t420 lcd panel replacement instructions made in china

This is not the Lenovo Thinkpad T420. You can Tell by the RAM memory Slot Cover and the Position the RAM is put into its slot. the T420 RAM is Vertical Compared with being Horizontal in this Picture. that includes the cover also. Then the Battery Slot is a Dead Giveaway clue. The T420 Battery slot is in the middle. and this Picture has the battery slot to bthe left. Sorry Not Even Close. None of the screws he removes are on the T420. so this is Completely Useless. Thanks

The T420/T430 generally come with a 1366x768 HD screen. However, it is capable of using a higher resolution 1600x900 HD+ screen; the extra pixel density and vertical space is a game changer for programmers.

If you forgot to purchase the upgrade from Lenovo when you bought your computer, follow this guide to do so. However, the process requires quite a bit of disassembly, since the default HD cable must be replaced.

If you want to try and install the X1 Carbon"s beautiful panel instead, check out this guide. Unfortunately, with that mod the LCD cable has to be extended, so it can be daunting.

There are three manufacturers that make the 1600x900 HD+ screen; Samsung, LG Philips, and AUO. Many fans believe that the Samsung screens are the best, and the AUO screens are the worst. The panels generally cost around $50. Search for these FRU numbers on eBay.

For the actual nitty-gritty details, follow the Lenovo Hardware Maintenence Manual for now. As you proceed, some minor parts don"t have to be removed (e.g. speaker assembly, LCD unit and integrated camera), so skip over such sections.

Instructions for replacing the LCD cable can be found on Lenovo website: "LCD panel and LCD cable removal and installation - ThinkPad T430 and T430i".

Thinkpad T430 laptops (as well as T430s, T420 and T420s) are equipped with awful screens. It doesn"t matter if the screen is HD (1366x768) or HD+ (1600x900), whether the screen manufacturer is LG, Samsung or AUO: every screen has awful viewing angles, poor colors and weak brightness.

Many people have investigated the possibility of upgrading these screens, notably on Notebook Review Forum at the thread "X1 display on a T430?" and on ThinkPad-Forum at the thread "T420/T430 auf FHD-Panel umrüsten (wie Alienware 14" FHD matt) ... Gibt"s schon Infos?".

T440s/T440p 1080p FHD IPS - This 1920x1080 panel is a very high resolution display with a beautiful IPS screen to rival those equipped on the X220/X230. Unfortunately, one drawback is that these screens use the new eDP standard, instead of the T420/T430"s LVDS output.

X1 Carbon 1600x900 TN Panel - An LVDS panel requiring no conversion, though it needs the cable to be extended While it"s a TN Panel, it looks much better than anything on the T420/T430.

_Before starting to buy expensive parts (the LCD panel) and before starting to dismantle the computer, I advise anyone interested in the X1 Carbon screen to first look at extending the LCD cable, because there are multiple different methods for doing so: some work, some don"t, and some are difficult._

If you just want to replace a 1366x768 HD screen with the typical T430 1600x900 HD+ screen, follow this guide instead. This guide is an experimental mod to put a T440s FHD IPS or X1 Carbon screen in a T420/T430.

T440p and T440s feature excellent IPS/AHVA panels (1920x1080, Full-HD), that by definition are superior to the screen mounted on the X1 Carbon. They"ve been reported to have same dimensions, but use different connection standards (eDP instead of LVDS).

As of July 29th, 2015, Chinese ThinkPad modders at 51nb have developed an eDP to LVDS converter board that allows most T440s/T440p 1080p FHD IPS Panels to be installed on ThinkPad T420/T430 and T420s/T430s models. (non-s and s models use different-sized boards due to case constraints). Unfortunately, due to linguistic barriers and shipping fees, it is difficult for these modders to sell to the English-language market, much less offer support.

The following guide is based on the successful installation of the X1 screen on my T430. Nevertheless, thanks to similarities between T430, T430s, T420 and T420s the information hereby presented could be applied to them as well.

Instructions for replacing the LCD cable can be found on Lenovo website: "LCD panel and LCD cable removal and installation - ThinkPad T430 and T430i".

The cable connector of X1 Carbon panel is in the wrong position: on the right instead of left. In order to connect the panel to the LCD cable is therefore necessary an extension (sometimes "converter cable" or "extender cable").

If you don"t want to irreversibly remove parts of the back shell, this is the only possible arrangement that allows to connect the screen with the LCD cable using a standard "left to right" LCD cable extension. Representation not to scale.

Although X1 Carbon LCD panel isn"t fitted with screw holes, placing it in the T430 body is quite straightforward. This new panel have indeed dimensions perfectly equal to the original and, once in its place, it is vertically sustained by the original vertical supports. The screen can be supported horizontally too by adding shims on its left (I"ve used folded cardboard), see the picture. Thin shims are necessary on the back of the screen too.

t420 screen provide the touch interface in smartphones, which are vital for them to function. Alibaba.com stocks a stunning range of high-tech t420 screen with vibrant color depictions. Truly crystal-clear displays of t420 screen are available covering various brands and models such as the Samsung Galaxy Edge 2, OnePlus 7T, Samsung Galaxy C5, and many more.

t420 screen are the most commonly used displays, as they produce great image quality while consuming low power. Rather than emitting light directly, they use back lights or reflectors to produce images, which allows for easy readability even under direct sunlight. t420 screen are energy-efficient, and are comparatively safer to dispose of, than CRTs. t420 screen are much more efficient when it comes to usage in battery-powered electronic equipment, due to their minimal power consumption.

Some other advantages of t420 screen over the CRT counterparts are - sharper images, little to no heat emission, unaffected by magnetic fields, narrow frame borders, and extreme compactness, which make them very thin and light. Some types of t420 screen are transmissive, reflective, and transflective displays. Transmissive displays provide better image quality in the presence of low or medium-light, while reflective displays work best in the presence of bright light. The third type of t420 screen, transflective, combine the best features of both the other types and provide a well-balanced display.

Whether as an individual purchaser, supplier or wholesaler, browse for an extensive spectrum of t420 screen at Alibaba.com if you don"t want to stretch a dollar yet find the best fit.

Have you ever faced a situation in which you opened your laptop or ThinkPad and saw nothing but a constant black screen? Looks disaster, right? But don"t worry. Your Lenovo desktop black screen is not a big issue to solve! There could be various reasons for this issue. It could be a loose GPU connection, damaged port, or a faulty display, or any other.

So, to help you solve this issue, the article provides all the essential information about the possible reasons that lead to the Lenovo ThinkPad black screen, effective methods to fix the issue. Moreover, it also offers a reliable way to recover data from a crashed system. Let"s get it!

Now, the fact that your Lenovo laptop"s black screen could result from numerous possible reasons sometimes makes it difficult to find the real cause. Here"re some of the key factors that lead to such problems:

As seen in many cases, one of the common causes of your Lenovo laptop"s black screen is related to hardware glitches in different components. Over time internal cables in your laptop wear out, and a damaged internal cable might cause the problem. Moreover, overheating your laptop might a graphic card crash, which would have corrupted your video display.

The faulty battery could also be a possible reason for your Lenovo Ideapad Black Screen. Unplug the charger from the battery source, and if your laptop suddenly goes blank, then it"s a battery issue. Try to replace your battery with a working one for confirmation.

Can a faulty battery cause a black screen? Yes, it could! If the power supply network has any issues, it might be responsible for Lenovo ThinkPad black screen issue.

You might wonder how power supply would lead to such a situation. Issues with the power supply can make your Lenovo’s screen turn black, which can cause quite a lot of problems for you.

As mentioned earlier, even when Lenovo laptop black screen seems like a huge issue, it is not. Only if you know various aspects of the issue will you be able to solve the problem. Here are the nine effective methods that can resolve the problem.

Most of the time, the black screen is only a minor glitch that your laptop witnesses. It happens when the Windows operating system loses its connection to the screen display. The following instructions will help you reset the display mode whenever this kind of issue occurs.

This will reset the connections, and the Windows OS may regain the display. Once done, check if it works, and you could see the normal display on your Lenovo laptop. If the above method doesn"t solve your problem, move to the next option.

If the previous method for resetting the display doesn"t work, it could be a display issue. To test if your laptop screen is faulty, you need a monitor and HDMI DVI or a VGA cable compatible with your laptop. Follow the instructions below to check the display,

Step 3: Now, click on the "Fn" key and "CRT/LCD" tab (either F5 or F8). Keep on clicking on it until the content of your laptop is displayed on the external monitor.

Just like non-peripheral devices, peripheral devices can also result in your Lenovo ThinkPad black screen issue. Have you noticed some dots spinning in the boot-up process? If yes, then you should do a hard reset on your laptop to check it. The following steps will guide you to do so.

If your Lenovo laptop boots up properly, it was one of the peripheral devices causing your Lenovo laptop"s black screen. Now, connect all your peripheral devices one by one until you reproduce the black screen again. This way, you will know which device was causing the issue. If the issue persists, then the problem could be something else.

Lenovo laptop black screen can also occur if you use the wrong graphic drivers or an outdated one. But you won"t be able to update the driver on a black screen, will you? Well, in this case, you can try turning on your laptop in safe mode. When you start your laptop in safe mode, you may be able to update your graphics driver. Now, follow the steps mentioned below to run your computer in safe mode.

Explorer.exe manages various essential operations, including desktop, taskbar, among others. Now, if it"s closed in your system, your desktop and taskbar will become invisible. So, it could be a possible reason for Lenovo"s black screen of death.

Windows 10 is equipped with an incredible feature called Fast start-up that makes your system boot up faster. However, it"s a tricky method that can also mess up the start-up process. So, if it"s enabled on your laptop, this could be the reason why your Lenovo laptop black screen issue occurred. The steps below will help you to disable it to avoid such incidents.

Reseating the memory module is a procedure in which a RAM chip is removed from the DIMM slots and correctly placed in the slot. It"s a typical process used for plenty of laptop issues. These include long start-up time and system reading incorrect memory space, among others. As it is also a useful option in Lenovo laptop black screen issues, follow the steps below to reset the memory module correctly.

If your Lenovo black screen issue is a recent development, it might have happened because of some new installations or upgrades. These types of system glitches do occur when the new programs are not compatible with your operating system. In such a scenario, a system restore would be an efficient way to solve the issue. Follow the steps ahead to know how to do so.

Although you can test out all the necessary solutions to save your Lenovo laptop"s black screen, it would be better if you’d know how to prevent it. Black screen issues can get quite fatal in multiple situations; thus, it is important for you to understand the importance of the safety of your appliances. To save yourself from such situations, you can look over the following tips.

If the black screen is not caused by damaged hardware, you can recover the unaccessible data on the computer with Recoverit. Even when you can solve the Lenovo laptop black screen issue, you might face data loss from hard drives and turn to Recoverit to get your lost data back. Recoverit Data Recovery software application is one of the best bets to retrieve lost files and data.

As the crashed computer becomes bootable again, you can choose the data recovery. Select a hard disk for the scanning and connect a hard drive to your Lenovo laptop. After the scanning process is completed, select a hard drive to connect to your laptop and click on the "Recover" button to recover data.

Lenovo"s desktop black screen problem can be solved in multiple ways. Especially where you cannot see the content of your laptop might make you anxious. The article helps you understand the possible reasons for some of the effective solutions. Use Recoverit software to recover all the data lost due to the crashing of your Lenovo laptop.

The problem is that the laptop uses LVDS to talk to the TN screen, while newer screens are likely to use Embedded DisplayPort (eDP) which is a different protocol entirely. However, there’s now a converter that [Syonyk] found on eBay (from China, of course). For about $70, the motherboard’s LVDS output can transform to eDP. Of course, you also need an IPS display panel.

I recently purchased a used Lenovo Thinkpad T420 laptop to replace the Lenovo Thinkpad T400 I was previously using as my main platform for researching open-source network simulators and emulators. The T420 is a five-year old product but it offers all the ports and performance I need. Because it is well past its depreciation curve, anyone can purchase a used T420 for a very low price.

I wanted a computer that supports high-resolution external monitors so it required a DisplayPort output. I also wanted to expand the number of VMs I can run concurrently with adequate performance so I needed a processor that supports HyperThreading. I wanted to switch to the Ubuntu Linux distribution and the Ubuntu Unity desktop environment needs just a bit more processing power to run smoothly. The Lenovo Thinkpad T420 meets all these requirements.

The Lenovo Thinkpad T420 is a business-class notebook produced in 2011 that was leased in large volumes by companies for use by their employees. Now, these companies are returning these computers to the leasors so Lenovo T420 laptops are available at used-computer re-sellers and on eBay at very low prices.

When purchasing a used Lenovo T420, you need to be aware of what you will get for your money. The Lenovo Thinkpad T420 was originally produced in many different configurations. When comparing prices, take into account the features added to the computer.

When looking for a used T420, I suggest you purchase a model with the 1600×900 LED screen. Other parts of the T420, such as the hard drive and memory, are easy to upgrade. Some models of T420 come with a discreet NVIDIA graphics chip, which is not important for most users so don’t pay extra for it. Some models offer a fingerprint reader, which is a convenience.

Upgrading memory on a Thinkpad 420 is very easy. When Lenovo installs the base level of memory in a Thinkpad, it only uses one memory slot so it is inexpensive to upgrade the laptop to 8GB by purchasing one more 4GB DIMM — and the second slot is very easy to access.

Replacement parts for the T420 are still available and Thinkpads are made to be easily repairable. You can download the T420 maintenance manual from the Lenovo web site. For example, the T420 I purchased has a few keys on which the letters are fading. If I decide to replace these keys, I can find multiple online stores that sell replacement keys just by searching for “thinkpad T420 key replacement” on Google.

The T420 I purchased was a well-equipped model with the Intel i5-2540M processor, a 1600×900 HD+ LED screen, Intel HD Graphics 3000 and NVIDIA NVS 4200M discreet graphics with Optimus graphics switching technology, a fingerprint reader, a webcam, 4GB memory, and a 320 GB 5400 RPM hard drive. It also has four USB2 ports, a Firewire port, a VGA output, and a DisplayPort output that supports an external monitor with up to 2560×1600 resolution. It came with Windows 7 Professional already installed.

As mentioned above, the T420 I purchased has an NVIDIA NVS 4200M discreet graphics chip. In Windows, the laptop will switch between the Intel graphics and the NVIDIA graphics as required by programs running. Unfortunately, the graphics switching technology does not work well in Linux so we must do some extra configuration to enable manual graphics switching, or just disable the NVIDIA graphics in the BIOS settings.

The T420 I purchased came with Windows 7. When I booted up Windows 7, it offered a free upgrade to Windows 10. I chose not to upgrade to Windows 10 because it is not clear if the NVIDIA Optimus graphics switching technology will be supported in Windows 10.

Lenovo does not officially support the T420 with Windows 10 so they will not provide updated Windows 10 drivers. Without the right drivers for the NVIDIA chip and for power management, battery life may be much shorter in Windows 10.

For now, I will keep Windows 7 so that the NVIDIA switchable graphics and Lenovo power management features continue to provide good battery life when I run Windows.

I am very pleased with the performance of my used Thinkpad T420 laptop when running Ubuntu Linux. In two or three years, I will upgrade to a Lenovo T450 or X1 Carbon when those models are close to the same US$200 price point that the T420 is at today.

An invariable constant. The tried and tested Thinkpad design has practically remained untouched on the outside. But from now on, the new Sandy Bridge hardware does its job inside the T420. Moreover, the compact office laptop boasts with an excellent communication configuration for the professional field.

Lenovo has doubtlessly made a name for itself in the business field with the Thinkpad notebooks. The T-series wants to "offer the best security, manageability, services and support" according to Lenovo"s homepage, and thus sets itself apart from the top of the significantly stronger W-series. In return, the X-series scores with a greater mobility.

Our test device is the 14 incher from the T-series, called T420. Adjacently, the 15 inch model, T520, is also offered and in review at the same time. Essentially, the Tx20 laptops only differ from the previous models, called T410 and T510, by a hardware refresh to the new Sandy Bridge processors.

The test device"s full name is T420 4236-NGG. Inside an Intel Core i7 2620M CPU does its job. The incorporated graphics chip, Intel HD Graphics 3000, is exclusively available for video output in our test model. This configuration is supported by a four gigabyte DDR3 main memory and a fast 500 GB hard disk with a revolution speed of 7200 rpm. Aside from various Core i processors, the T420 is also available with a dedicated NVIDIA NVS 4200M graphics card and Optimus technology – at least in the USA. Consequently, the rating of performance contingent parts is dependent on the real configuration and can"t necessarily be applied to other models.

The Thinkpad T420 can practically be seen as an immediate opponent of the basically similarly configurable Latitude E6420 from Dell. While Dell has opted for a completely new design, Lenovo contrarily sticks to the tested and tried Thinkpad design for the Thinkpad T420. We will show to what extent both vying notebooks differ in detail.

At first glance, The T420 doesn"t seem to differ from the T410 much. But this is deceptive. For one thing, the display"s diagonal has slightly shrunk from 14.1 inches to 14 inches. The same applies for the laptop"s height and width, whereas the depth has interestingly gained a bit. The measurements for comparison: 30.5x340.5x233mm for the T420 and 32x336x239 for the T410.

Albeit, as we will see in a moment, quite a few changes have been made on connectivity, Lenovo sticks to the proven, light clamshell design. No modifications can be found in color or material choice, either. The almost completely black case has been made from plastic. The haptics correspond to the choice of materials. However, the matt and slightly roughened surfaces don"t feel unpleasant.

In opposition, Lenovo has taken care to place potentially permanently occupied ports, such as the other two USB 2.0 ports and the eSATA/USB combo port, in the right"s rear area in the interface arrangement. In addition, the right accommodates, from front to back, a 3.5mm combo audio socket, the optical drive in an Ultra Bay slot, a 4in1 cardreader that supports SD, MM, SDHC, SDXC, and an ExpressCard34 port.

To our regret, Lenovo forgets, like Dell in its E6420, to install a USB 3.0 port in the course of the refresh. Although the eSATA interface also bids a higher data transfer rate than USB 2.0, increasingly more external mass memories are being offered with USB 3.0 ports and eSATA is disappearing little by little from the market. In comparison to the competition, we also notice that Dell relies on the utilization of a HDMI port in the E6420 and thus accepts the according restrictions. In opposition, Lenovo remains resolute in installing a display port directly on the device.

Talking about docking stations – it remains interesting to see which docking solutions will find their way to Europe. Currently, two models are available for the T420 in the USA: The ThinkPad Mini Dock Plus Series 3 (US/Canada/LA) (-> manufacturer"s information) for about 250 US dollars. It allows connecting three additional external monitors in addition to the installed display. Secondly, the ThinkPad Port Replicator Series 3 (-> manufacturer"s information) for about 280 dollars.

Alike the T410, our T420 test sample scores with an extensive communication configuration. Everything that is useful and available is installed. A Bluetooth module version 3.0 is optional, and installed in our test device. It allows data exchange with small, portable devices, such as PDA or mobile phones. Just as optional is a mobile broadband module (F5521gw Mobile Broadband) also installed in our Thinkpad. The correlating SIM slot is located in the battery compartment. The matching antenna cables are present so that a UMTS/HSPA module can be retrofitted later. In regards to WLAN, various options are given. An Intel Centrino Ultimate-N 6300 AGN (agn) module is in the test device. The laptop can be linked to Ethernet networks via the Intel 82579 LM Gigabyte Network Connection. Video conferences aren"t a problem anywhere with the (optional) 720p HD camera and this configuration.

In addition to the obligatory Kensington Lock, the T420 also has a fingerprint reader, among other things. A splash waterproof keyboard saves data from loss in case of mishaps with liquids.

The T420 has generally improved in comparison to the T410 in terms of assessments. It is brighter and illuminated more evenly. Merely the black value is slightly lower than in the prior model. Nevertheless, the better brightness results in a somewhat higher contrast.

As you can see in the comparison pictures, which have been made with various ICC color profiles, The T420 hasn"t been designed for professional image editing. AdobeRGB and sRGB aren"t covered. Thus, it is in the same league as Dell"s E6420 with the same display size and resolution. Differences in view of color reproduction become visible in comparison with especially high quality screens. They can be found, for example, in Apple"s MacBook Pro 13 or in Dell"s XPS 15. Even the T420"s bigger brother, the T520, scores better here.

The last point we look at for rating a screen is its viewing angle stability. It turns out to our satisfaction horizontally and the image can be recognized even in very narrow angles without ado. As usual in the majority of laptops, the viewing angles along the vertical plane are considerably lower in the T420. Consequently, you can take it for granted that frequent viewing angle adjusting will be necessary to ensure a well legible image, especially during outdoor use. When several people are looking at the screen at the same time, their eyes should be at about the same height.

Our T420 has a four gigabyte DDR3 RAM available for the main memory. They are located on one single, inaccessible for the user, chip. Only a second, still unoccupied bank is accessible via the maintenance cover. An intended upgrade can easily be accomplished by the customer. Due to the 64bit Windows 7 Professional operating system, the four gigabyte of main memory can be exploited efficiently, in contrast to a 32 bit version, and there"s nothing standing in the way of a RAM upgrade. The processor"s memory controller can address a maximum of up to eight gigabyte of DDR3-1066/1333 RAM.

Unfortunately, the test results are beneath those that would be expected for a HD Graphics 3000. However, since the power measurements always remain under par, we have to reckon with a defective device. Another indication for this is that the device detection of the ThinkVantage Tools fails regularly. In order to exclude a problem in the settings we checked the BIOS and the energy settings in Windows 7. We will attempt to attain a replacement device for an update review. We would refer to our detailed test of the Intel HD Graphics 3000 chip and to the HD Graphics 3000"s spec sheet for more information.

The T420 always remains fairly quiet regardless of the load. The system noise is a constant 32.2 dB(A) in low load. The hard disk is slightly louder with 32.5 dB(A) during access.

The tested T420 stays pleasantly cool everywhere in low load. This still applies for the entire upper surface even during higher load, for example two hours in the stress test. Merely temperatures above body temperature are measured in some places on the bottom, and a maximum of 39.7 degrees Celsius in the vents" areas.

The Core i7 2620M dual core processors" core temperatures inside climb to a maximum of 85 degrees Celsius inside. We must point out that the T420 in the configuration at hand hasn"t been conceived for graphic-heavy applications, but for office and internet anyway.

Surprisingly, the maximum power consumption wasn"t as high as expected in the stress test (100% CPU and GPU load). Solely the CPU proves to have a maximum power loss of 35 watts. However, our meters only recorded 28.6 watts for the entire system. Thus, we checked the setting in Lenovo"s PowerManagement in Windows 7 and the BIOS settings. But we didn"t find anything in neither place. The settings for mains operation are clearly set to "Maximum Performance" in the BIOS.

At any rate, the T420 is also available with a dedicated NVIDIA NVS 4200M graphics card in the USA. The Optimus technology is thus used to keep the power consumption low during low load. Since our E6420 test device is equipped with the NVIDIA NVS 4200M graphics card and Optimus option, our T420 has a clear advantage in power consumption during load scenarios.

We like the 14 inch screen that is marginally smaller than the T410"s (display diagonal). The desktop"s layout has been maintained, respectively even slightly improved in width due to a resolution of 1600x900. There"s nothing standing in the way of mobile use with the matt display surface and good brightness. However, the T420 only bids standard fare in terms of color reproduction.

The T420 has basically been designed for business customers who are looking for a solid office laptop with a good application performance and nevertheless good mobile qualities. A slight performance increase in 3D applications can be expected in the configurations with a dedicated Nvidia NVS 4200M graphics card, which also supports DirectX 11, listed in the USA. However, our test laptop won"t mutate to a stronger graphics workstation even with this graphics solution.

*Important Notes: the monitor and LCD board must be the same signal type, you can check the screen code on the back of the LCD and check it on https://www.panelook.com/ page for the parameters necessary, needs. Pay special attention to important parameters such as LCD display name (eg B140HAN01.3) and Signal Interface (eg eDP (2 Lanes), eDP1.3 , 30 pins Connector) as the basis for selecting BOARD LCD decoder and corresponding LCD connection cable (eg M.RT2556.51).

3. Remove the CD drive, that location will later be used to place the LCD board and HDMI Switch.Carefully remove the housing of the HDMI Switch and place the PCB in the proper position.

*The most important* thing here is that you keep in mind where the output slot of the HDMI switch is after removing the case, and then connect the output of that HDMI switch to the input of the BoardLCD. The remaining two ports will do the job of providing input for HDMI Switch

I have a passion for the T420 and I have modified the LCD into a screen that has two effects, both being able to use the laptop"s internal screen and also being able to use it as a portable LCD.

Appendix A “Notices” on page 139. First Edition (February 2011) © Copyright Lenovo 2011. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are delivered pursuant a General Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set forth in Contract No.

The recovery disc set consists of the user instructions and the following set of DVDs to restore the computer to the original factory configuration. ® Operating System Recovery Disc (one disc) This disc restores the Microsoft Windows operating system. Use this disc to start the recovery process. Applications and Drivers Recovery Disc (one or This disc restores the preinstalled applications and more discs)

Table 8. Fn key combinations (continued) Key combination Description For Windows 7: Switch a display output location • Computer display only (LCD) • Computer display and external monitor (same image) • Computer display and external monitor (extended desktop) • External monitor only Note: To switch between the computer display and an external monitor, the Win+P key combination is also available.

Table 27. Removal steps of LCD bezel assembly Torque Step Screw Screw (quantity) Color M2 × 5 mm, shoulder-socket head, nylon-coated Black 0.181 Nm (1.85 kgfcm) Chapter 8 Removing and replacing a FRU...

Table 28. Removal steps of LCD panel (continued) Step Screw (quantity) Color Torque 0.181 Nm M2 × 3 mm, small-head, nylon-coated (4) Silver (1.85 kgfcm) When installing: When attaching the LCD panel to the cover, gently press the left and right edges covered with metal. Do not press the surface of the panel or apply any excessive force to the panel.

• “2010 LCD bezel assembly” on page 98 • “2020 LCD panel” on page 100 • “2030 Integrated camera, microphone, or hall sensor card” on page 102 • “2040 LED sub card” on page 103 • “2050 LCD cable” on page 104 Table 32.

• “1100 Palm rest with fingerprint reader, smart card reader, and speaker” on page 83 • “1110 LCD unit” on page 87 • “1120 DC-in sub card” on page 89 • “1140 Bluetooth-wireless radio switch FPC” on page 91 • “1150 System board, fan assembly, 34-mm ExpressCard reader, and base cover” on page 93 •...

Table 34. Removal steps of antenna kit and LCD rear cover assembly (continued) Cable routing: When you install the antenna kit, route the cables as shown in the figures below. As you route the cables, make sure that they are not subjected to any tension. Tension could cause the cables to be damaged by the cable guides, or a wire to be broken.

Table 35. Parts list—Overall No. FRU (Overall) FRU no. See “Miscellaneous parts” on page 130. LCD unit (see “LCD FRUs” on page 125.) Keyboard bezel assembly 04W1451 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 37x, 36x •...

Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. 04W1675 N LCD bezel assembly • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...

Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD (continued) No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. Antenna kit 04W1683 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...

Table 36. Parts list—14.1-inch WXGA+ LED-backlight LCD (continued) No. FRU (14.1-inch WXGA+ LED-backlight LCD) FRU no. LED cable assembly 04W1685 N • 4170–CTO, 39x, 38x, 3Ax, 35x, 34x, 22x, 23x, 24x, 25x, 26x, 27x, 33x, 32x, 37x, 36x • 4171–CTO, 6Tx, 6Sx, 6Px, 6Nx, 6Mx, 6Jx, 6Hx, 6Gx, 6Fx, 5Zx, 5Yx, 5Xx, 5Vx, 5Ux, 5Tx, 5Rx, 5Px, 5Nx, 5Mx, 5Jx, 5Hx, 5Fx, 5Ex, 5Dx, 5Bx, 5Ax, 55x, 54x, 53x, 52x, 6Rx, 6Qx, 6Ex, 68x, 66x, 65x, 64x, 63x, 62x •...