Jul 23, 2015
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DIY – Repair a DLP Chip

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A worn or damaged DLP chip within certain Mitsubishi tvs, Samsung tvs and Toshiba tvs sets causes small dark, white, or other colored specifications on the DLP television’s display. This might look much like a dead pixel on LCD tv sets. With time, the specs growth multiply and make tv viewing difficult or even impossible to view. Many television repair technicians recommend changing the whole optical light engine, however the repair is costly. For this reason, you may opt to simply purchase and replace the failed DLP chip yourself as a cheaper and similarly effective solution. If you’re thinking of buying a fresh DLP chip or perhaps a DLP television, it’s important to comprehend how to correct the DLP chip if it is needed.

What’s DLP Technology?
Although known worldwide because of its award-winning projection technology, Texas Instruments DLP technology allows innovative optical solutions that disrupt existing end equipment and create new marketplaces. The DLP chip can be utilized for broadband, effective, and reliable spatial light modulation. The programmable and versatile DLP technology is redefining commercial, medical, telecom, security, and a great many other applications. With TI’s powerful yet easy-to-use development tools, customers have the ability to reduce design cycles and deliver disruptive products.

What’s DLP Chip?
DLP chip is an optical semiconductor and the hearth of each DLP projection system that was invented by Dr. Larry Hornbeck of Texas Devices in 1987. The DLP chip is possibly the world’s most sophisticated light switch. In the DLP chip, it contains a rectangular array of up to 8.8 million hinge mounted microscopic mirrors; each of these micromirrors measures less than one-fifth the width of a human hair. The DLP chip micromirrors tilt either toward the light source in a DLP projection system, or away from it. This creates a light or dark pixel on the projection surface.

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Last update on 2017-04-27

How to Replacing the DLP Chip?

Cleaning the Workspace and Removing the Back Panel – To start with, using a dried out rag, clean off any dust on the television, its screen, and the certain area you will work directly into prevent some of it from entering the tv screen. Next, check that the tv is unplugged. Given that your projects area and the television will be ready to go, you will need to remove the TV’s back panel. The back panel, which is the whole rear area of your television, is the service plate. Locate all the screws keeping the plate set up and take them off. Place them in a secure place where they cannot get lost.

Removing the Optical Light Engine – Now you need to disconnect all the wires attached to the optical light engine in order to remove it and gain access to the motherboard where the DLP chip is located. Carefully and gently pull the plugs out of their sockets and remember that some of the plugs have plastic tabs that release them from their sockets when depressed. You may need to remove a few screws as well in order to remove the entire optical light engine, depending on the brand of television. If you feel that you might not be able to remember where to plug things in later, you must draw a diagram indicating where the wires go or label them with small pieces of tape.

Getting to the Motherboard – Once you remove the optical light engine and move it to your designated workspace, then find and take away the motherboard. Around the optical light engine, there is a metallic plate within the motherboard, which you must remove. You might see a little exhaust fan or the heatsink outside of this metal plate. Take it off by firmly taking out all the screws holding it in place and disconnecting any cables, and access the motherboard. As a part note, you might want to wear plastic material gloves when managing the motherboard, as electrostatic electricity may damage the motherboard and chip. Take the motherboard out carefully.

Removing and Replacing the DLP Chip – At this step, you need to examine the motherboard carefully because the DLP chip will stays in place varies from brand to brand and model to model. Remove the heatsink to reveal the chip, you may need to remove a few screws. Remove the old damaged chip and replace it with your newly purchased chip.

Putting Everything Back Together – Once the new chip installed, it is time to put all the pieces back into place. Put the motherboard back in place, replace the heatsink and plug all of the wires in their original sockets. Place the optical light engine back in the television and connecting all of its wires as well. Finally, put the service plate back into place. Be careful, if you did not seat the DLP chip properly you will see the vertical lines appear on the screen when you turn the television back on. Don’t worry, you must repeat the process until you reach the DLP chip again and carefully align it in its designated slot.

BUY New Samsung/Mitsubishi/Toshiba 4719-001997 DLP Chip


Sample Video – Samsung DLP White Spot Dot Repair




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