Cara Cek LCD Monitor Rusak atau Tidak

Sekarang ini sudah banyak sekali orang beralih ke monitor LCD. Selain harganya hampir sama dengan monitor CRT, monitor LCD juga memerlukan tempat yang tidak begitu banyak seperti monitor CRT. Bagaimana jika monitor kamu tidak mau menyala? Jangan khawatir. Saya mempunyai beberapa langkah jitu untuk mengetes atau menguji monitor kamu masih bisa digunakan atau tidak.

Pertama yang harus dilakukan jika monitor kamu tidak menyala dan tidak ada indikator apapun yang tampak adalah memastikan apakah ada listrik menuju kabel power monitor LCD kamu. Kedua adalah mengetes pada ujung kabel power yang menuju monitor apakah terdapat arus listrik atau tidak, karena biasanya kabel power sering terputus di bagian dalam tanpa kita sadari. Ketiga, jika sudah yakin terdapat arus yang masuk namun tidak juga menyala, kamu patut curiga dengan rangkaian regulator di dalam monitor LCD kamu.

Saya memberi tips sedikit. Pada umunya tegangan untuk mainboard vga pada LCD monitor adalah 5 volt. Jika kamu ingin hanya menguji apakah board tersebut menyala atau tidak dengan asumsi regulkator telah rusak, kamu bisa lakukan pengujian dengan melakukan jumper tegangan menggunakan charger handphone. Disini saya menyarankan untuk menggunakan charger handphone nokia karena paling gampang dicari. Kamu hanya tinggal menghubungkan tegangan positif dan negatif ke board vga kamu dan melihat hasil menyalanya melalui led indikator.
Semoga bermanfaat...

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Cara service LCD TV LG 20LC1R

Cara service LCD TV LG 20LC1R
1. Tidak ada daya (indikator LED off)
- Periksa singkat utama B / D atau Ubah Lips Ubah U406 Ubah LED Assy Periksa 15V atau 5V dari Lips Periksa Output U406 Periksa LED Assy Periksa J103, J125, J126 (Gagal) Periksa Connector Output Dan Cek Q402 Q402.

2. Tidak Ada Raster
- Periksa Status LED pada layar Periksa unit input / Output Periksa U301 U401 ~ U405, U407, U409 Periksa Konektor atau inverter inverter Periksa kabel input sumber dan Ulangi jack (Gagal) Cek ~ U401 U405, (Gagal) U407, U409 U301 (Gagal)Ubah inverter inverter (Gagal) konektor atau panel (Gagal) Periksa kabel atau modul link panel kabel atau modul.

3. Tidak raster pada Sinyal AV (SCART, CVBS, S-VHS)
Tidak raster di TV (RF) sinyal
Cek L108, L109, L110, L112, R194, R198, R184
Periksa sinyal L108, L109, L110, L112 R194, R198, R184
Periksa output TU701 Periksa input / output dari U301 Periksa input / output dari U101 Periksa kabel source input dan jack Re-menyolder atau Ubah bagian cacat X301 (Gagal) Periksa Re-solder atau Ubah bagian cacat, Periksa 5V , 33V dari TU701.

4. Tidak ada suara
Periksa kabel speaker source input Ubah Periksa sumber masukan (Gagal) Re-solder atau Ubah bagian cacat Periksa X301 Periksa input / output dari U301 (Gagal) Pass Re-Solder atau Periksa bagian input / output dari U201.

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How to Connect a Ribbon Cable to a Plasma TV

Ribbon cables are wide strips of flexible plastic containing multiple electrical wires running parallel to each other. With advances in high definition television, more digital information must be processed to a plasma TV than traditional patch cords can handle. Ribbon cables solve this problem by bundling 40-80 electrical wires in a sturdy, flexible ribbon of plastic. Follow these steps to connect a ribbon cable to your plasma set.

Instructions

1.Disconnect the electrical power to all equipment while connecting the ribbon cable.

2.Check the connector plug on the end of the ribbon cable to see whether any of the holes are sealed.

3.Match the plug to the connector pins on the TV, taking care to align the holes on the ribbon cable plug with the pins on the connection port on the back of your plasma TV.

4.Insert the connector plug on the ribbon cable straight into the port on the plasma TV. Do not bend or insert the plug at any angle, or you could break off a pin, damage the ribbon cable connector plug, or both.

5.Restore power and test the operation of your plasma TV.

Tips & Warnings

If any of the connecting pins are bent, carefully straighten them with tweezers or needle nose pliers. Apply gentle pressure, as the pins break easily.

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How to Run Cable TV Wire

So you want to run your own cable television wire. Most cable installers will throw in what they call "standard installation" with any new subscription; however, the extent of the standard installation goes only as far as the installer feels like going. If you have a television that's particularly hard to reach, it will cost you. But running this cable is easy enough to do yourself with a bit of planning.

Instructions

1.Locate where the main cable line comes into your home. This will be a coaxial wire (with a round metal screw-on end and a pin sticking from of the middle of it). The wire will usually be near your power, gas or water meter, or perhaps your telephone box.

2.Connect a splitter to the main line. Insert the pin from the wire into the hole on the input side of the splitter, then secure the wire in place by twisting the end until tight.

3.Determine where you want to install your cable television in your home and drill holes to bring the wire inside. Starting inside, as close as possible to your baseboard, drill straight through your wall until you reach the outside. Repeat in all of your installation locations.

4.Run your wire. Connect one end to the output on the splitter and run it to the hole you drilled. Insert the wire through the hole, then run it to your television or converter box and connect the wire to the coaxial "IN" port.

5.Secure the wire. If running the wire up a gutter outside, tuck it under the gutter and secure it in place with zip ties. If you're running it inside along the floor, press it to your baseboard then secure it by hammering in a u-nail. Add a nail every 2 or 3 feet. Repeat for all remaining locations.

6.Seal up your holes to protect from insects and escaping air. Push your caulk into the hole, then seal up around the hole on both sides of the wall. Allow to dry for a couple of hours, then peel off any loose ends.

Tips & Warnings

For looks, you can add a faceplate to your coaxial wires where they enter the inside of your home, much like electrical plates for plugs and light switches. If you wish to do this, when you bring the wire inside your home in Step 4, push the wire through the hole in the wall and the faceplate at the same time. Then, after you caulk your holes in Step 6, secure the faceplate by screwing the screws that come with it directly into the dry-wall. If you push hard enough, they should go through the drywall without having to drill holes and provide a tighter, more secure fit.

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How to Install a New Cable TV Receptical

A TV receptical constitutes any method used by a television system to receive TV programming. This includes a cable/satellite receiver or an old-fashioned antenna. Depending on the device and the quality of the picture, the connection process may vary, but it usually only takes a few minutes to completely set up the equipment, regardless of the hardware you are using.

Instructions

1.Connect the digital antenna into the "In" port on the digital to analog converter box, if using an antenna. Plug the coaxial cable into the "Out" port on the converter box, then insert the opposite end of the cable into the "In" port on the TV. Power on the converter box and the TV to begin viewing the programming.

2.Insert the component video cables into the "Component Out" ports on the cable/satellite receiver. This method is used for both devices when the equipment is standard definition. Plug the opposite ends of the cables into the "Component In" ports on the TV. Insert the RCA audio cables into the "Audio Out" ports on the receiver, then connect the free ends of the cables into the "Audio In" ports on the television.

3.Connect the HDMI cable into the "HDMI Out" port on the high definition cable/satellite receiver. Insert the other end of the cable into an "HDMI In" port on the HDTV. You are now set to begin viewing high definition programming.

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How to Set Up Captions on an Old Panasonic TV

Closed captions allow the deaf or hard of hearing to understand what is being said on television programs. Closed caption boxes generate captions from signals built into the TV signal and can be used for old Panasonic TVs that do not have closed captioning built in. The closed caption box, available from electronics stores, connects to the TV using the same cables that would connect to the TV directly.

Instructions

1.Place the closed caption box next to the old Panasonic TV that will be displaying the closed captions. Plug the closed caption box's power cord into a wall outlet.

2.Screw the end of the cable that is bringing a television signal, for example, from a TV antenna or a cable TV provider, into the same-named connection input on the closed caption box.

3.Insert an end of a coaxial cable into the coaxial RF output on the closed caption box. Screw the other end of the cable into the coaxial Antenna input on the TV.

4.Turn the TV on with its remote. Press the "Menu" button. Select the "Video input" menu. Highlight the coaxial input choice from the list on the screen. Press the "Menu" button repeatedly until you exit the menu settings.

5.Turn the closed caption box on. Select the "RF" output on the box, using a sliding selector switch or a button, depending on the manufacturer of the box. Leave the box on in order to view closed captioning on the TV.

Tips & Warnings

Some cable boxes may require you to use the same output cable as the one that is connected to the input of the closed caption box.

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How to Test LCD TVs

An LCD TV is a flat-screen TV alternative that features Liquid Crystal Display technology to power its screen. LCD TVs can possess a number of common problems that can be tested and troubleshooted, sans the use of any complex tools and without the need for an existing body of knowledge concerning television operation and repair. Coaxial cable connection issues, receiver box hook up errors, video input miscalculations, and screen display irregularities can all be tested and remedied in short order.

Instructions

1.Check the power indicator light on the front face of your LCD TV. This is the simplest possible problem, as you may need to reconnect a disconnected power cable. Ensure your projection TV's power cable is secure within the wall outlet.

2.Test the audio/video connections between the LCD TV and the cable or satellite receiver box. Your LCD TV will have shipped with an audio/video cable that has two sets of colored prongs, one on each end of the cable. You will want to ensure that these prongs are synced color-wise with the matching audio/video port sets on the back of your projection TV and the back of your cable/satellite receiver. One set of prongs will go into each set of ports. If the colors are mismatched at any point, switch the prongs and ports up and turn on your LCD TV to test the audio/video once more.

3.Test the video inputs provided by your LCD TV. It is possible your LCD TV has the wrong video input selected. You may check this by cycling through the video inputs using the "Video Input" button on the front of the projection TV, or the "Input" button located on your TV's remote. Continue to cycle through the inputs until you land on the one dedicated to your cable or satellite programming. This will restore audio and video to your TV if you were lacking it previously.

4.Ensure the coaxial cable that ships with the LCD TV is properly connected to your equipment. The coaxial cable will be connected and extend out of the cable wall outlet in your home or office that is nearest to your LCD TV if you are utilizing cable service. If you are utilizing satellite service, this coaxial cable will run down from the satellite dish outside.

5.Ensure the other end of the coaxial cable is plugged into the "ANT IN" port on the back of the satellite or cable receiver. If this cable is at all loose from this connection point, it will result in a degradation of signal. Make sure the coaxial cable is tightened into this "ANT IN" port by gently twisting the metal band on the coaxial cable's plug to the right. Test the coaxial cable connection further by wiggling the cable within the port and seeing if this results in picture degradation. If it does, further tighten the cable as described.

6.Check to see if there are any high-powered devices such as computers that are in close proximity to your LCD TV. These can create electronic interference that can cause picture display errors on your TV. Move these electronics away from your TV to resolve the issue.

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How to Test a LCD TV Power Supply

The power supply of your LCD TV refers to the large circuit board found in the middle of its body. This is hooked with a lot of transformers, two IC's and capacitors. As much as you would want your TV to last forever, you may encounter a problem or two when it comes to its power supply. Testing your LCD TV power supply will allow you to pinpoint exactly what the problem is and if your power supply needs any repair. You do not need to tinker with the circuit board of your LCD TV to test its power supply.

Instructions

1.Check to make sure that your LCD TV is not plugged into any overloaded household circuit. Since your washer, refrigerator and dryer all use up a huge amount of electric power, complicated wiring may lead to multiple items plugged into the same circuit. Plug your LCD TV into its own power socket to test its power supply accurately.

2.Connect the power cord of the LCD TV snugly into the power source or socket. Make sure that all connections are snug including your DVD player or cable box. Test the socket that you are using by plugging in another electrical item to see if the current is flowing smoothly.

3.Inspect the power cord for any cuts or nicks. Replace any cord that may be damaged or bring it to an electric repair shop for rewiring.

4.Test the incoming flow of AC power by connecting your LCD TV to an independent power source. Your power source can be an Uninterruptible Power Source with your UPS cord removed from the power socket. If your TV works, this means that the power supply is in good condition.

5.Plug a lamp into the socket and see if your LCD screen flickers while testing your power supply. If the light of the lamp flickers, this means that you may have intermittent power fluctuations. In this case, you must contact an electrician to fix the problem to prevent fire hazards.

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How to Fix a Samsung LCD TV

Many TV enthusiasts prefer the superior picture and sound quality that LCD and other types of HDTVs can offer. Just like any other consumer electronic, you will at times experience normal, minor technical problems with your LCD TV. To address these, you can have the TV looked at by an electronics store; you can call Samsung technical support and spend lots of time on the phone with a representative, but it is often better to learn to troubleshoot these problems on your own so as to be able to resolve minor issues without having to consult outside help or spend any money.

Instructions

No Power

1.Press the power button on the front panel of the TV to test for a remote issue. The power button on Samsung LCDs is the bottom-most button on the control panel mounted on the right hand side of the screen. If the TV's power button powers the TV on, the Samsung remote may be experiencing an issue; try replacing the batteries or using a store-bought universal remote in its place.

2.Reset the TV by unplugging its power cord from the outlet or surge protector into which it is plugged. Count a full 30 seconds and plug it back in. Again try to power on the TV.

3.Plug the TV's power cord into a different outlet in the home to test for a problem with an individual outlet. If you use a surge protector, plug the power cord into a different spot on the protector or bypass the surge protector altogether by plugging the power cord directly into an outlet.

No Picture

1.Tune the TV to the correct video input using the "source" button; this button is on the Samsung remote and on the same control panel as the power button. If you are attempting to watch a DVD player connected to the TV's Video 2 input and the TV is set to Video 1, you will not see a picture until the TV is switched to the correct input. Press the "source" button repeatedly until the TV displays the input that is connected to the device you are trying to watch.

2.Reset the audio and video cables that attach the device you are trying to watch to the LCD TV. After plugging the cables back in, turn the TV off and back on to force it to scan for new input connections, and again check for a picture.

3.Tune the TV to another video input into which another device is connected. If you see a picture now, troubleshoot the first device individually.

No Sound

1.Press the Volume up or "Mute" button on the remote. The mute button is located in the center of the remote, right in between the volume and channel buttons. If you press either button and you see a volume slider on the screen, the TV has been unmuted and you can check for sound again.

2.Reset the audio connection cables to test for any loose connections that may cause a loss of audio.

3.Press the "MTS" button to make sure you do not have a secondary audio setting activated on the TV. SAP (secondary audio programming) or MTS (multichannel television sound) can cause a loss of audio if the channel you are watching does not support those settings. Press the MTS button repeatedly until the TV screen displays "stereo."

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How to Calibrate a Samsung LCD

Samsung's LCD TV provide full 1080p resolution and 3D support. As a new owner of a Samsung LCD TV, you will want to set it up as the centerpiece of your home entertainment center. One of the first things you should do is calibrate your LCD TV. Considering that lighting is different in every room, adjusting your television's picture is critical to getting the most out of your Samsung LCD viewing experience.

Instructions

1.Insert the DVD into your player's disk drive. You will use the DVD to calibrate the Samsung LCD's image. Seek a scene in the movie that has an equal amount of light and dark areas. Pause the movie upon finding such a scene.

2.Access Samsung's picture settings. Using the remote control, press the "Menu" button. Scroll to the "Picture" option, hover over "Backlight" and press "Enter."

3.Adjust the LCD TV's brightness and contrast settings. Turn up the brightness settings to their highest output. Begin to decrease the brightness until the letterbox bars at the top and bottom of the widescreen movie appear as black as possible. Increase the contrast to its maximum setting as well. Incrementally decrease the contrast until you can clearly see the details of the still image's light areas. Also, ensure that the light colors do not bleed into the rest of the picture.

4.Tune your Samsung's color settings. Increase or decrease your TV's color setting to your preference. Keep in mind that the lowest color setting produces a black and white image, and the highest color setting creates a distorted image. After calibrating the television, exit the menu in order to save all changes.

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Samsung LCD TV Problems

Samsung LCD TV are routinely ranked among the top models on the market, but they aren't perfect. Consumers have reported problems with various Samsung LCD TV sets, from lack of a signal to motion blur to viewing angle problems. Some problems can be corrected if you read your manual and check the Samsung website for support and updates.

Finding a Signal

Because your Samsung TV is capable of displaying signals from a number of sources, there is often a noticeable lag time between changing the channel (or selecting a viewing source) and seeing an image appear on the screen. This is usually the case with satellite receivers, cable boxes and DVRs. There also have been reports of a "popping noise" whenever a signal is acquired and shown on the screen.

The problem here is not necessarily with your television. Because there are so many different signals out there with different resolutions--480, 720, 1080--it takes a satellite or cable box a few seconds to acquire and format the signal. If you're switching between regular definition and high definition, it takes time to send the correct signal to your set. It is not a correctable problem; it's just the state of technology today.

Motion Blur

LCD TVs, including most Samsungs, tend to have an issue with motion blur. This can happen if you are watching something that's fast-moving on your TV, such as a football game. Moving players often don't stay in focus; they appear to "blur." This is especially an issue for LCD TVs with a "refresh rate" of 60 MHz. The "refresh rate" is the speed at which the TV updates the moving image. The higher the MHz number, the quicker the image updates. LCD TVs with 120MHz or 240 MHz "refresh rates" tend not to have this problem.

Whether motion blur is a problem depends on the viewer. Some are not bothered much by motion blur, while others find it distracting. Many do not notice it at all. Prospective buyers should view a TV with bright, fast-moving images to determine whether motion blur is a problem.

Automatic Shutoff

Several Samsung LCD TV owners have complained about their sets turning off for no reason. A programming glitch from the factory causes this, and Samsung has corrected it with a firmware update, which is similar to "patches" you download to update your computer. The firmware update is available on Samsung's website and can be loaded onto a USB drive. Since the sets with this problem have USB ports, you can easily plug in the USB drive and upload the firmware update, which should solve the problem.

Viewing Angles

Viewing angles have always been a problem with LCD TVs, and Samsungs are no different. Many viewers report a loss of color clarity, accuracy and brightness if they attempt to look at the screen from side angles. Ideally, LCD TVs should be viewed straight ahead. This is not a correctable problem, but a limitation of the LCD technology itself.

Glare

Many viewers are concerned that glare, or the reflection of light from a room or window on a screen, will detract from their viewing. Glare can cause colors to appear faded. This may have been the case with early Samsung models, but later models feature a black base screen and an anti-glare shield that enhances colors and makes them much more vivid. Consult your dealer to ensure that any TV you consider buying has this feature.

Brightness

Brightness is a common problem for LCD TVs and Samsung TVs, in particular. LCD technology is known to have problems showing deep blacks, so images may appear overly bright or even faded. While early Samsung LCD TV models did have this problem, later models employ LED backlighting, which does not brighten an image as much, resulting in deeper colors and natural, dark blacks. Many Samsung TVs also have different image settings, including cinema mode, which darkens an image more to make it look like a movie screen.

Finding Upgrades

If problems arise with your Samsung LCD TV, check with Samsung technical support. As an LCD TV owner, you should keep your model number handy and check the Samsung website if you have any problems. There may be a firmware update available that can easily solve your problem.

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How to Reset an LCD TV

When experiencing problems with your LCD TV, including the television powering off unexpectedly, not receiving signals from your cable box or VCR, or functions not working properly, you don't have to ignore the problems or take the TV to a repair shop. LCD TVs are equipped with a reset function that returns the television to its original settings. Once your LCD TV is reset, test the television by accessing the various functions using the television's remote control or front panel buttons.

Instructions

1.Turn on your LCD TV, if it is off. Press the "Menu" button on the TV's remote control or on the front panel of the television.

2.Navigate to the "Factory Reset" or similar wording option using the arrow keys on your TV's remote control or on the front panel of the TV. Press the "OK" or "Enter" key to select the option.

3.Select "Yes" or "OK" if prompted with a message asking are you sure you wish to load or restore the factory settings.

4.Press the "OK" or "Enter" key to select the option. Your LCD TV will now reset.

5.Press the "Channel Up/Down" buttons on your TV's remote control or front panel to test your LCD TV once the resetting process is complete.

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