How to Repair an LCD Monitor

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How to Repair an LCD Monitor

The LCD monitor is one of the most important parts of a computer. Without it, people cannot use their computers. If the monitor breaks, users either have to pay for a replacement or make the repairs. Several computer shops and technicians can make these repairs, but computer owners can save even more money by making the repairs themselves. Fortunately, users do not need a lot of technical knowledge or skills to complete the job. Users simply need to learn how to identify which part of the monitor is causing the issue, find the supplies, and then make the repairs. Users only need a few basic tools, and the parts they do not have are readily available on eBay.

Identify the Cause of a Malfunctioning LCD Monitor

The first step for repairing an LCD monitor is identifying the symptoms. More often than not, the problem affecting an LCD monitor is a faulty capacitor. However, there are a few occasions when the issue is with another part of the monitor. Pinpointing these allow the user to diagnose the problem and determine the proper course of action.



Faulty or dead capacitor

LCD turns on then goes blank; power light blinks on but monitor does not; fuzzy picture; unusual buzzing sound; monitor appears completely dead

Defective LCD module

Monitor and backlight turn on, but display is white or grey

Faulty buttons

Monitor displays correctly, but menus appear for no apparent reason

Unless the screen has cracks or the monitor is otherwise physically damaged, users can usually repair the broken LCD monitor by fixing one of these three problems. In addition to being simple, these three issues are inexpensive to fix.

Gather Supplies for Repairing an LCD Monitor

Fortunately, people who want to fix an LCD monitor do not have to invest inexpensive tools or equipment. Additionally, they do not need to have advanced technical skills to complete the job. Most of the supplies needed are readily available in any toolbox. Before making repairs, users need ascrewdriver,pliers,putty knife, and soldering iron. Additionally, they need replacement parts.

Repair the LCD Monitor

With the problem identified and the tools in hand, users can begin making the necessary repairs. Before taking the monitor apart, users need to make sure they have it on a stable surface and disconnect it from the power source. Failing to do so may lead to accidents or injuries. Repairing an LCD monitor is as simple as disassembling the monitor, replacing the broken parts, and putting it back together.

Disassemble the LCD Monitor

Users start disassembling the LCD monitor by removing the base and placing it face down on a flat surface. They remove the screws from the back of the monitor that hold the case together. With a slotted screwdriver, people use a small amount of pressure to pry the two sides of the plastic case apart. They need to move around the entire edge and twist the screwdriver to disengage the locks. With the housing off, users can see all of the inner parts of the monitor and easily locate the broken parts.

Identify Faulty Capacitors

The LCD monitor uses a number of capacitors, and it is not likely that users need to replace all of them at the same time. Thus, it is important for people to learn how to spot which ones are faulty and which ones are fine. The symptoms of faulty capacitors include:

* Bulging on the side or the top

* Powdery substance on top

* Wobbly or unstable

* Crumbling substance on the bottom

Capacitors near a heat source tend to break sooner than others do. Users should inspect these capacitors first before moving on to the rest. Some manufacturers use glue to hold parts of the monitor together. When looking for substances leaking from the capacitor, users should note that glue has a rubbery appearance whereas discharge from the capacitor has a dry or powdery appearance. Glue does not affect the function of the capacitor or the monitor and does not need replacement.

Replace Capacitors

To replace the broken capacitors, users must first desolder them from the circuit board. Users should replace these with capacitors of equal or greater capacitance. For best results, shoppers should purchase low ESR capacitors designed to work at temperatures of 105 degrees Celsius. This ensures that they do not break down as quickly as the previous capacitors. With the soldering iron, users put the capacitors in their correct place. Once complete, users reassemble the monitor, reconnect it, and test that it functions properly.

How to Buy LCD Monitors on eBay

If you do not wish to make the repairs yourself or have monitor that is beyond repair, then you can find a large selection and several great deals on LCD monitors on eBay. Locate the monitor you need with a basic search by entering keywords into the search box found on any eBay page. Narrow the results by specifying a brand, size, price range, or condition to find the one that matches what you need.

LCD monitors are expensive to replace, but computer owners can save money by fixing a broken monitor themselves. With a few basic tools and a little bit of time, users can locate and replace broken parts to get their LCD monitors working like new again.

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