How to Disassemble or Break Down a Large Projection TV

by:Rocket PCB     2019-08-27
Do you have a big screen projection TV that you want to get rid?This description will provide you with a guide on how to decompose and disassemble the projection TV into manageable components for disposal at a dump or landfill site, where these parts and components can be further broken down and organically used for recycling.This article with photos uses Toshiba 50H82, 50 inch projection TV as a model.There is a picture quality problem with this TV, and the maintenance cost is almost equivalent to the price of modern flat-screen TV.
Large projection TV is large in size and weight.Getting rid of them can be expensive as the new hd TV (HDTV) is cheap and no one wants a larger projection TV anymore.These beasts occupy too much space.In my opinion, it is not difficult to break Toshiba.
The design for internal access is user friendly.However, the shell around the main part is bonded.But I have a solution for destruction.TVs using LCD or LED technology today are very lightweight.
Even though I purchased a 50 inch led TV with someone to help me out, I really don\'t need help.The box is large but there are two straps to handle and carry the box.I\'m not that strong but I was able to lift the box and move it myself without any problems.
The old TV provides video using a cathode ray tube (CRT) and already has a large crt TV with a screen size of up to 36 inch.However, in order to provide a big screen movie experience, new technologies have emerged to support larger screen sizes.One of the popular techniques in the early ages of 90 to 20 is projection TV.
There are two types of projection TV on the market: front and back.The back-projection TV looks more like a standard TV set.The rear projection TV contains a red, green and blue (RGB) projector that produces the image to the back of the TV.
This projector can be CRT, LCD or DLP.
The Toshiba 50H82 model adopts CRT projector.The back of the TV contains a mirror that receives pictures that combine RGB colors with any color from the original movie source (from cables, satellites, discs, etc.The image projected onto the rearview mirror is seen by the viewer on the front screen.
First, move the projected TV to a place where you can get dirty and mess up.At first, I used the living room to just remove all the heavy parts before moving them to the final disassembly area.I used my garage in this case.Collect all the tools needed to open the chassis and remove components such as large boards.
In Toshiba 50H82 there are many small slotted lag screws.I removed them with cordless electric drills with accessories.Please be aware of any loose parts, such as screws or debris, during work because of the use of violence.
I started working behind the TV.
There is a panel to access the large main board.Remove the panel by unscrewing the bolts or screws.There is a power cord connection in which case the rear panel is not accessible.
After removing the rear panel, you can see that the power cordis is connected to the motherboard.Disconnect and get the wires out of the way.Find any screws that secure the motherboard on the TV base.
Unscrew all the screws until you find the motherboard loose.Once the board is loose, you can start to disconnect all the wires.Please note in the figure (Figure 5a and 5b) that there are several cables and wires attached to the motherboard.
You can cut them with a wire cutter or scissors or disconnect them by hand.I started disconnecting with my hands in case someone wanted to reassemble the TV.After running into some connectors that don\'t seem to be able to remove, I cut them off directly.
I imagine some scavenger trying to put this TV together so I thought I would make it easy to put it together.Unfortunately the connector got stuck and I lost my patience.After separating the cable from the board, you can put it aside for the next step.
(See figure 6) as you can see, it is quite large for PCB.Next, I opened the front and bottom plate.I pried the lid off the side with a screwdriver.
Once I have relaxed an area, I am able to separate the panel from the TV.There is also a panel in the middle to access the RGB projector.Unscrew and remove the cover to reveal the projection system and the associated circuit board.
We need to remove the RGB projector from the top.However, the large screen on the front is blocking the road and must be removed.Make sure to screw down the large plastic piece holding the screen from the bottom.
This large screen slides up for removal.
There are four \"hookah\" to keep the screen in place.Grab the plastic piece from the bottom and lift up.The big screen is large but not heavy.Put the screen aside and let it go.You will see a huge area for projecting the image onto a large mirror on the inside of the TV.
Find the screws from the top to hold the red green blue (RGB) projector assembly.(See Figure 11) unscrew the projection system to make sure that no wires are connected to the rest of the TV.If there are any connected wires, please disconnect or cut.
The RGB projector assembly is the heaviest piece except for the large TV body.(See Figure 12) put this piece in the box because there are many sharp edges that will hurt you.Put the box and projector components aside.
The left and right speakers have 4 screws on each side.To reduce the weight of the TV, please remove the speakers.(Fig 12.Even with the removal of the main circuit board, front screen, RGB projection components and speakers, the hollowed TV is still heavy and heavy to put a small truck.
However, TV is relatively light to move.
You can now put the big TV in a big truck or van and throw it away.You can now choose to remove the TV body further and transport these parts with a small SUV or car.The problem with other parts of the Toshiba 50H82 TV is that there are no other areas that can be screwed down.
The remaining pieces stick together.
It takes brute force to break the rest, but there is a large glass mirror that needs to be handled.The mirror slides up, but the top of the TV is glued to one side.I took a sledgehammer and separated the left and right sides of the TV.
The hammer I use is not the type that the other side of the tool uses to remove the nail.The hammer is too weak.The hammer I use is like a small hammer used by Thor.After removing the top, I can slide out the big mirror and put it aside.
Warning: this is glass.
Be cautious when handling!I started removing the left and right with a hammer.After removing some odd scrap boards, the rest is just a piece that looks like a cabinet or table on the wheel.After making large wooden pieces small enough to fit your van or truck, you can pile them neatly in your car and transport them to your local landfill.
If you wish, you can make furniture using the side corners of the scrap board.The housing of the TV cabinet can be converted to a table or cabinet for the new TV.Toshiba 50H82 50 inch has emotional value for back-projection TV.
I purchased this TV about 2002 or so after the second child was born and I knew I would take care of them more at home.Having a large hd TV makes it even more fun for entertaining children and guests.Ten years later, the video began to blur.I can\'t play consoles like Nintendo Wii and Xbox 360 anymore.
As long as a technician comes to the House to troubleshoot, it will cost about $100.Leaving this Gelia TV on the side of the road is just a thorn in the eye.Hd TV is relatively cheap, why does anyone want an old projection TV that doesn\'t work properly?Goodbye, big screen projection TVYou did a good job, but the technology was updated.
I mean, some new TVs don\'t even have old RCA components or S-Video connector.The HDMI connector has been taken over.Let me wonder what TV technology will bring in the next decade
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