How To Repair Compaq 17" LCD Monitor

The complaint of this 17" Compaq LCD Monitor was shutdown after few seconds to few minutes. That means the display sometime will shutdown in few seconds while sometime it will shutdown in couple of minutes. When there is a display the picture worked perfectly good until it shutdown. The first thing one would normally suspect is the defective backlight. For your information, a bad or a weak backlight can cause such problem and dry joints may also contribute to the cause of the fault.
Since I have a spare backlight, I swapped the LCD backlight with the working one. It is easy to do it, just remove the existing backlight connector and connect the good backlight connector to it. I have tested one by one the backlight and the result was the LCD Monitor still shutdown intermittently. This has proved both of the LCD Monitor backlights are okay! So now my concentration is looking for any dry joints in the LCD Monitor.
I put back all the internal metal casing like original except the main cover and switch "ON" the LCD Monitor. While at my left hand holding the LCD Monitor, my right hand holding the shaft of the screw driver, I began to gently knock on the LCD Monitor internal metal casing with the handle of the screw driver. The moment I 'hit' it, the LCD Monitor went straight into shutdown. Wow! From the test I believe you would have known what is the cause of the LCD shutdown-it was dry joint.
Opening up the casing again, you can clearly see three boards i.e. the power/inverter board, audio board and the Main board. I only suspect the power/inverter board because this is the board that controls the backlights. What I did was resoldered all the components in the inverter area except the SMD components because SMD components rarely have dry joints.
When I power "On" the LCD Monitor and hit it with the handle of the screw driver, the Monitor again went into shutdown. I told myself "it can't be" but anyway I have a very high confident that the fault must be in the inverter area and not in Main board or power board. Next, I carefully hold the LCD panel and use a test pen to lift up the corner of the inverter board and power "On" the Monitor. Guess what happen? The Monitor did not shut down even though I 'hit' a little bit hard on the metal casing. This again proved that the problem is somewhere in the inverter area.
I opened up again the metal casing and carefully scanned through all of the components in the inverter area-it look like I have already applied fresh solder to it. It was only the feedback circuit that have SMD components that I haven't solder. I used a magnifier glass to check if there are any dry joints in all of the feedback components but I don't see any. I went ahead to resolder all of the SMD components in the feedback circuit and power "On" the Monitor. To my surprised, the LCD Monitor no more shutting down no matter which way or how I tapped the LCD Monitor with the handle of the screwdriver. I put the LCD Monitor for many hours of burn in test and it just worked great. I have sent back the LCD Monitor to my customer and till now after couples of days there is no call from my customer.
Conclusion - Do not overlooks the dry joints in SMD components. Every part in the electronic board can be a suspect. Hope from this article you can get some ideas about solving intermittent problem in LCD Monitor.

Home Audio Speakerss s

Sound, also perceived as the sense of hearing, is an integral part of our lives. Without the ability to hear or reproduce sound we are not complete. Sound is the vibrations that travel through air and can be sensed by our ears. Thus it is a medium of communication. It is used to gather information and knowledge about properties of the environment surrounding us. Sound can travel through air, water, and solids. These help sound waves travel and are known as medium. In normal conditions, human can hear a varied frequency range. But, sometimes we need to amplify the sound output for better quality of hearing. This requires the help of speakers.
Speakers are devices, which convert electromagnetic signals into sound vibrations. Thus speakers are machines that enable us to hear sounds, which have their origin somewhere else. Speakers, also termed as loudspeakers are attached to an audio system, which provides the electromagnetic signals that are then reproduced in the wavelength, which humans can decipher. The loudspeaker is the most variable element in an audio system, and is responsible for marked audible differences between systems. s
Home audio systems have come a long way since their inception as just another loudspeaker system. They have become a part and parcel of our every day lives. Today, many versions of home audio systems have evolved into our homes. Technological enhancements have made sure that we can take our audio or sound system wherever we go. As speaker systems are the most important part in the output of sound, they have evolved greatly. Many versions of speaker systems are available in the market today. Depending upon your choice of price and your perception of quality, you can opt for the one that best caters to your requirements.
Speakers are an integral part of any audio system, be it a simple radio or a home theatre system. Home audio speakers are generally multi-drive systems, i.e. they contain two or more drive units. These include woofers, midranges, tweeters, and sometimes horns or super tweeters. A home theatre system is complete only if all the above mentioned add-ons are attached with it to give a theatre-like sound experience. In home audio speaker specifications, the speakers are classified as "N-way" speakers. It indicates the number of bands of different frequency into which the system divides the sound. A 2-way system consists of woofers and tweeters, a 3-way system consists of mid-range speakers with a combination of woofers and tweeters. It depends upon person to person; rather there exists different perceptions towards the quality of sound and thus the drives in a speaker.
If and when you decide upon purchasing a home audio speaker system, you will be spoilt for choice. They come in various ranges of quality and pricing, thus you need to decide carefully what caters to your specific set of requirements. Good audio companies make available a host of choices for speaker systems that can gel with your audio systems. They also provide different designs and creations of speakers that fit into your décor. You can place your systems in such a way that it gives you the optimum output.

The Power of One Album on a Home Audio System

There is one album that is very special to me. It doesn't matter what it is. But whenever I play it on my pro audio equipment or on my home audio system it all comes back to me, feeling the love and desire while I first played one of the songs on my guitar for my first love, then the soft longing I had in her absence when we parted for the summer, the confidence that we would see each other again soon and resume our happiness, then months later the disillusionment I felt while driving through the shrubby brown hills of West Texas on my way back to school and the understanding that maybe she and I weren't meant to be together, and worse, that everything we had lived together before was just passing the time, and that isn't that what life is - a giant collection of moments we have to pass as peacefully and blissfully as possible - and then the later memories, of how I played the album and that song again and again months and years later, after the pain had worn off, and those very feelings I first enjoyed became suffused in nostalgia with the richness of time.
And today, being able to reflect on all those feelings I no longer even feel them when I play the album on my home audio system, but rather a collection of them tied to the album itself, so that it's the memory of the album holding good memories that I find enjoyable when I'm not actually listening to the deliciously beautiful and melodic songs. The album's a little more than half an hour long and yet ironically it holds years of my life, which ordinarily I don't have access to in anything more than flashes and bursts of memories, little snatches of images of her face, and looking out on the road, and feeling sweetly melancholy and alone, and all the realizations from that period of my life being truer than anything I've ever known since.
All that from a single album played off a home audio system. I'm almost afraid that the more I listen to it, the more present memories I'll imbue it with, which will cancel out the old ones, and so I'm reticent to listen to it on repeat the way I used to while I first explored the intricacies of its steel guitar and syncopated cowbell.s

Planning to Buy a Home Audio System? Read This Before You Buy

When it comes to entertainment, audio systems are one of the most important choices to make. With many advancements in sound engineering, lots of classy audio system are available in the market to choose from. With lots of choices for audio systems, it can be confusing to choose the one for your entertainment needs. In the past, when you planned to buy a audio system, you went straight to an electronics store, and chose the speakers based on their appearance, sound quality, and price.
This process is simple and once you bought the speaker, you take it home and plug it into your sound system and will be satisfied with the music that the speaker plays. However, with many sophisticated technologies made available in audio systems today, you now have lots of choices to make such as the choice of features, acoustics, appearance, portability and much more. This article will help you to choose the best home audio system for you. Keep on reading to make a perfect choice in home audio systems.
Travel A Lot? Choose Portability
People often stay away from the portable audio system fearing that they will lack the audio quality. With the advancements in sound engineering, popular speaker manufacturers have made it possible to create ultra portable music systems with no compromise to quality. If you used to travel a lot and need to move frequently, you should definitely look for portable home audio systems. However, when it comes to buying portable home audio systems with great sound quality, you will have to spare thousands of dollars. Top quality with great portability never comes cheap.
Not an Audiophile? Choose Classy Looks
Not everyone out there needs outstanding music quality in their home audio system. Recent surveys indicate that most of the people buy home speaker systems mainly for interior design. The classy looks of the modern music system has found great importance in interior design. If you are not addicted to outstanding music quality, you should give first preference to the looks of the speaker. Great looking features with intermediate sound quality will not cost as much.
Not Enough Cash? There Are Home Audio System For You Too
You should remember the fact that not all the home speaker systems are costly. If you just want to listen to music with affordable quality, there are many cheap home theater systems available in the market. Though these audio systems don't come with the most impressive looks, they fulfill the basic role of delivering pleasant music and reproducing quality sound for television and movies. Look for Discount Home Audio Speaker Systems to save cash.
There are audio systems for everyone's needs. All you have to do is to identify your needs so that you can make better choices while buying home audio equipment.

Article Marketing - How to Promote High End Audio Home Systems Using Article Writing

Products that cost thousands of dollars are usually harder to sell. This is especially true if you are trying to sell high end products on the Internet - a faceless medium. So how can you build up enough trust for the customer to be willing to part with thousands of dollars for a high end home audio system? Perhaps the answer lies in article marketing.
Tip 1: Provide home audio setup tips.
Tip 2: Show customers how to choose the right audio system.
Tip 3: Build trust by sharing expert knowledge.
Tip 4: In the author box, state that the content is provided by a reputable Company.
Tip 1: Provide home audio setup tips.
Writing audio related articles that show sound enthusiasts how to setup home audio systems can attract a lot of targeted traffic. These are homeowners who are interested in setting up a complete audio system in their living room, and they are searching for information on how to do that. Provide that information, and you stand a chance of making a sale.
Tip 2: Show customers how to choose the right audio system.
Pick the top audio systems in the market, and write about them. Tell your readers why you have recommended these systems. What are the strengths? And what kind of experience can the homeowners expect to have after installation?
Tip 3: Build trust by sharing expert knowledge.
It is very difficult to sell something that is worth thousands of dollars to someone who doesn't trust you. So try to build trust by sharing expert knowledge. The more good stuff you share, the more credible you sound.
Tip 4: In the author box, state that the content is provided by a reputable Company.
Finally, customers want to know who they are buying from. If you have been in this business for years, let the customers know in the author box.

Want to learn how to get to the top of Google using Article Marketing? I have the tools, knowledge, and resources to help you achieve your traffic and income goals.

Enliven Your Home With the Latest Bose Cube Speakers Audio System

Even at its compact size, the speakers sound great. Some even wonder how big speakers. But these people are amazed by how small and compact that it can be. Pretty amazing right? The cube is equipped with the latest audio equipment and most advanced to date. This system is known as the Acoustimass. As noted earlier, the head of the abandonment of large quantities of sound in a cube of size, physically small. It's also combined with surround sound, through which we can never change the sound quality from the speaker home cinema itself in both large and small spaces.
Acoustimass system can be found with regard to many variations and / or models. It is as follows Acoustimass 16 6.1-channel system, Acoustimass 10 Acoustimass five three Acoustimass All classified as home theater speaker systems that blow away your ears. Powered Acoustimass 16 6.1-channel system is different from, among others, because it contains the rear center channel to improve sound quality. Cube speakers, on the other hand, has five straight and / or reflective speakers that allow a stronger, more complete experience and dramatic sound. Moreover, there is also Acoustimass 10 in that it carries 5.1 channel home theater system. This is particularly desirable spacious rooms. Just last Acoustimass 3 speaker system, more personal level more personal speaker is designed for small spaces. What are the benefits of this is that it still blows to the ears of the excellent sound effects and even a compact! Imagine that!
Returning to its roots, it was established by Bose Corporation, one of the students of electrical engineering at MIT, Dr. Amar G. Bose. These speakers were invented largely due to his dissatisfaction with the sound system. He wanted more, he wants something authentic and congested. He imagined how these speakers provide a truly realistic sound is like watching a live concert. To this day, continues the company on technology research and other recent advances in their products. Their intention was mainly to give his superior in all entertainment and home audio solutions. So far, Bose saw aviation, automotive industry, even in the stages of the house of worship, auditoriums, retail stores, restaurants and department stores. Bose extended their products to sell worldwide is fully committed to their customers and is also known for its customer service.
If you are thin, elegant but powerful speakers, I suggest you look at the Bose speakers. They have secured their users a solid experience that can be improved with a stylish interior. They offer a modern design and compact design. You cannot go wrong Bose cube speakers, with what you can say the size does not always comprise the speakers function.

Home Audio Speaker Placement - Better Performance Through Better Design

Whether investing a large amount of your savings or a small part of your budget on your home theater, your speaker placement will play a big role in the sound quality and sonic performance in your home theater room.
The instructions that come with your speakers will give you recommendation for where to place them within a room but below are a few things to consider as you begin setting up your new home theater speakers.
CENTER CHANNEL SPEAKER
This speaker's main purpose is to anchor sounds on-screen, like dialogue.
Tips for placement of the center channel speaker:
1. Center it directly above or below your television.
2. If you place it above the television, the front edge of the speaker should line up precisely with the front edge of the television. This will cut down on any kind of sound "bouncing around" inside the television cabinet.
3. The tweeter of this particular speaker should be at the same height as the tweeters of the front speakers. If you can accomplish this to within 24 inches, that will allow for the best sound quality.
4. The front speakers and this particular speaker should be spaced the same distance away from your planned listening position.
FRONT SPEAKERS: BOTH LEFT AND RIGHT
These speakers have two distinct purposes. They reproduce stereo music sound while also handling a movie's soundtrack.
Tips for placement of the front speakers:
1. Find your optimal listening position. Now space the two front speakers at points in the room that are equal is distance to that position, with one to the left and one to the right. The front right, front left and center channel speakers should all be approximately the same distance from where you are sitting, with the tweeters of each directed at your ears. Don't just eyeball this and get an approximate distance, as even an inch variation in the distance of the speakers can make a noticeable difference in your home audio system's sound quality.
2. These speakers' tweeters should be even to your ear level when seated in the optimal listening position. Smaller home theater speakers can be mounted on the wall or placed on a speaker stand. Floor standing speakers normally have this covered in their design.
SURROUND SPEAKERS
The purpose of the surround speakers is to provide low and high level sound from other parts of the room, creating a movie theater feel in your home theater. The surround speaker placement will depend on the size of your home theater, the shape of the room, and the space needed for the actual speakers. Be creative and experiment with the placement of these particular speakers throughout the room.
Tips for placement of the surround speakers:
1. Place the primary pair to the right and to the left of your optimal listening position. This can be done in line with your position or just behind it. When placement to the side is impossible, or when you have a surround system with more than two surround speakers, you may wish to place the speakers behind the listening position, with the sound being directed toward the front of the room.
2. These speakers should be placed at approximately ear level when you are in a standing position.
3. Experiment with the aiming of these speakers when mounted on the walls. Sometimes good results can be achieved when you point them up at the ceiling or back at the rear corners of the room.
SUBWOOFER
A home theater subwoofer provides your home audio system with all the low bass frequencies needed for a movie theater, surround sound experience. However, it is one of the least difficult to position. In most cases, you can position your home theater subwoofer anywhere in your home theater and still get good results.
There is no one "perfect" placement for any given home theater speaker. No two rooms' acoustics will be the same, all speakers will have various sonic characteristics, and no two ears will hear any given sound identically. This doesn't mean you will never achieve the best sound quality from your home audio system. All it means is take the advice given and modify it when you actually install your home theater speakers to accommodate your specific needs.