Replacing the light tunnel in an Optoma TWR1693 DLP projector that had a shadow on the left side due to the light tunnel not being aligned. I show how to replace it. I tried to upload this as one video but it was too long. Here is part 2. https://youtu.be/aA-2cKPNYzI ... https://www.youtube.com/watch?v=HUV3PPZoFeg

This was dropped off by a local school with their Polyvisions sometime late 2019. I replaced the damaged power connector after tracking down the part number on Mouser.com. I was lucky in that the rest of this video was lost but I was able to recover it off an old backup. Thanks for waiting. These are used for showing books and other flat objects through a projector or a computer monitor. I have seen them used to show microscopes on screen as well. I am not super familiar with their uses but I am sure many of you use these regularly. I messed up the opening title page but rather than re-export the video, there is going to be a white block up for an extra second or 2. ... https://www.youtube.com/watch?v=EJ1GxuDdu-Y

This is one of those holiday decoration projectors that you shine on a sheer screen that goes over your window. Found it at Goodwill today and for $6, seemed worth it. The button keyboard was messed up so I decided to make a teardown, repair video. Projector is really akin to the white speaker van scam projectors you hear about on occasion. ... https://www.youtube.com/watch?v=6y0jAql7hKY

This EVision 6800 was sent into my day job after a new set of lamp assemblies did not solve their problem. Turns out they had a lot more wrong than just some old lamp assemblies. After some deep mainboard troubleshooting, I found a bad chip. A big important looking chip. Since the projector was left with me, I am considering repairing it myself. It would make a great home theater projector(nice and bright) or amazing for outside use. I did talk to DPI but they did not have that mainboard anymore. After some research, I am almost 100% sure that this is similar to a few Vivitek models. I might see if I can find a scrap Vivitek and grab its mainboard, and/or order that chip. My only reservation about ordering the chip is if it has custom firmware. I can't load that so it would have to get its firmware from the outboard eepoms. Let me know if you want to see me fix this. If you are interested and can afford it, kick me a few bucks so I can order the chip first. We'll try that before we replace the mainboard. If you like to see the not repairable projectors, let me know. I will post more unrepairable projector jobs to show what led me to that conclusion. here are the other models that are very similar to this one. Digital Projection Projectors and their lamps: E-Vision 6500 WXGA, E-Vision 6800 WUXGA, E-Vision 7000, E-Vision WXGA 1, E-Vision WXGA 600, E-Vision WXGA 6000, E-Vision WXGA 6500, E-Vision WXGA 7000, E-Vision XGA 6500, EON WXGA 6000,109-804, 116-380. Vivitek Projectors and their lamps: D5600, D6000, D6010, D6500, D6510, DH6671, DU6675, DW6035, DX6535, 5811100818-S, 58111100818-STD. If you need a 110-284 for your Digital Projection or Vivitek, click here(use code YT50 at checkout for 5% off). https://www.purelandsupply.com/digital-projection-bulbs_110-284.html \o/ #beamers #digitalprojection #DPI #diyhometheater #projectorrepair #projectiondesign #vivitek #vivitekprojector #deltaelectronics #purelandsupply #electronicsrepair #110284 ... https://www.youtube.com/watch?v=9nqeZ3396YM