I Bought 6 BROKEN Projectors - But Can I Fix Them and Make Money?!

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I Bought 6 BROKEN Projectors - But Can I Fix Them and Make Money?! I paid $1,200 for 6 broken projectors. They're all Optoma projectors and have a variety of problems including a lamp error, image issues, a couple loose zoom rings, smoke damage, and a buzzing sound.
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Опубликовано:

28 апр 2022

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Комментарии : 677

@Tronicsfix 2 года назад

Two things: 1) In this video I show checking the fuse to be sure there is no voltage there. As several commentors have pointed out (Thank you!). This is NOT the correct way to check voltage on the large caps. You need to check on the capacitor legs themselves. 2) Just wanted to add that with items like these I either test them more extensively or I sell them as untested. Either way I always make sure potential buyers know what they're getting. I'll be posting on my community tab, Instagram an Facebook when I start selling stuff.

@Cerus98 2 года назад

Even if you test them, you’ve openly admitted that you don’t know anything about projectors. These aren’t like consoles or TVs. There’s far more to them than just turning on and displaying an image. Without an actual projection screen, you won’t even be able to properly test them. I applaud you for branching out on what you “fix” but you should at least have some knowledge of what you are working on. This just seems like you’re greedily buying up random, cheap stuff on eBay in order to make videos and quick sales for profit after some tinkering and cleaning.

@amberazurescale5617 2 года назад

Glad you mention 'cause I was already wondering how one can call a projector "all fixed" when not even a stand-still image on a proper projection surface was tried. In case you decide to do the testing, I'd be interested in a video on testing procedures and outcomes for sure... Oh yeah, and testing the voltage drop on a fuse doesn't seem to make any sense.. I was wondering about that, too.

@mjc0961 2 года назад

FYI, you have to pin the comment again if you edit it. Found this down near the bottom of the page.

@Tronicsfix 2 года назад

@@mjc0961 Thanks for letting me know. I had no idea.

@racemediahungary233 2 года назад

Hey @TronicsFix Can i have a question?

@TerminatorJuice 2 года назад

As a home theater projector owner since 2005, I can tell you that just having light output does NOT equate to being "fixed". You need to test with the image projected on a wall to make sure you can get it focused and that the colors and contrast are acceptable with moving images. You can have an older bulb that puts out light, but the image will lack any depth or looked washed out, so that's something that needed to be tested.

@jaybirdvc15 2 года назад

I agree with terminator, half ass "fixes"

@bonnerikbarrogataday6289 2 года назад

Maybe you're a first time viewer.. When TronicsFix says "It's fixed" it is definitely fixed.. I am sure that he tested them off-camera.. You should watch more of his videos to see what I mean..

@TerminatorJuice 2 года назад

@@bonnerikbarrogataday6289 I've been watching his videos for years, and he normally says he does more testing off camera, but I didn't hear him say that for these projectors...

@shiftctrlhack 2 года назад

@@bonnerikbarrogataday6289 ya your not correct there buddy. He only checked for light... really?

@bonnerikbarrogataday6289 2 года назад

@@shiftctrlhack 12:47 If you look closely, the projector is hooked up to a computer.. You can see the icons on the upper left corner and the taskbar at the bottom.. He's not just testing for light..

@kresimirpecar4925 2 года назад

One small notice, when checking if there is charge in capacitors, always measeure voltagr across storage caps. Measuring voltage at socket will always show 0V (if bridge rectifier is good) because bridge rectifier will block DC. Also if fuse is not blown there will not be any voltage across it. (There will be voltage drop across it when the projector is drawing current while its working) This time you get lucky that storage cap have bleeder resistor. If that is not the case (as it is for many chinese PSU) you could get high voltage for days at that capacitor and your methods will not detect it. So ALWAYS measure voltage at the big caps. If there is residual charge, use high wattage resistor, 1K or lower to discharge capacitor safetly.

@jonnymakers9560 2 года назад

Spot on bro. you are correct!!

@TheKukunuku 2 года назад

my thoughts exactly

@Tronicsfix 2 года назад

Yes, you are correct. I did it totally wrong in that shot. I'm adding this to my pinned comment.

@kresimirpecar4925 2 года назад

I once got bitten by storage cap... And that was 470 uF 450V beast charged to 390VDC. I assumed cap is discharged... It was very painfull assumption...

@timehunter9467 2 года назад

Would that be a “full bridge rectifier”?

@andyo1872 2 года назад

Test them like at least 1~2hours . When I worked on projectors cost over 10,000 dollar per each. They sometimes showed some sort of weird issues when I run them for few hours. They were expensive but not reliable at all. *Rumors and things I experienced, If you use "non-genuine" lamp for your projector, they might cause damage to a filter on lens which might give you fuzzy or darkened image even after putting a new lamp. (We ended up replacing several projectors due to darkened image Replacing a lamp was not a solution)

@Tronicsfix 2 года назад

Agreed. I'll likely sell them as untested since I don't have time to test them for that long.

@jarateman6427 2 года назад

@@Tronicsfix You don't have time to turn on 6 projectors and come back in 2 hours? Also you didn't check the audio on any of these at least you didn't on camera.

@dpowerful1 2 года назад

@@jarateman6427 I guess he's made his money from the sponsor spot and video, that's the important thing

@-never-gonna-give-you-up- 2 года назад

Thats for the next customer to find out 🤣🤣🤣

@SteelOfLegend 2 года назад

@@Tronicsfix Use them for a movie when you are relaxing with the wife. If it acts up, swap to your normal screen. Idk, just an idea.

@boomsharkboom 2 года назад

Wish you would've shown how each displayed images in dark and lighter rooms. Sometimes the bulbs need to be replaced eventhough they still give light. The bulbs Don't last for ever. Enjoyed the video.

@absenteeatom 2 года назад

If you go into the menu, you can see the lamp hours

@boomsharkboom 2 года назад

@@absenteeatom but still would of hoped he would of shown the brightness of the lamps. Lamp hours are guidelines not the true physical shape of the bulb.

@Keith1210 2 года назад

@@boomsharkboom And also lamp hours can often be reset so you may not get an accurate account of the number of hours if someone reset the device before selling.

@Tronicsfix 2 года назад

It's hard to know what testing to include in these types of videos. Usually the more testing I do on camera the less of the video people watch so I usually minimize the testing I show. I agree that if I were to sell these as used and tested then I would need to test them much more extensively. Anytime I don't have time to test something fully I sell it as untested so the buyer knows what to expect.

@TheKukunuku 2 года назад

@@Tronicsfix I bought a few for 60 euros and and repaired them. Most of them had dust in their optical part because the filter had crumbled because of bad material, some had thermal cutoff fuses blown and some sony ones had a faulty chip on power supply. Anyways, its important to check the image, that its not dull, because of something in optics, like dust or that the colors are not off, sometimes there is something wrong with the LCD-s.

@housinit 2 года назад

Awesome man! One thing though, never, ever , ever clean a lens with alcohol. The alcohol can very quickly damage lens coatings, specifically the anti-reflective coating that is on them. Always try to use a lens specific cleaner or if you don't have that, then an alcohol free glass cleaner. This goes for any kind of eyeglasses also. Awesome job though man, love it!

@dorfschmidt4833 2 года назад

Wrong.

@housinit 2 года назад

@@dorfschmidt4833 I can understand why you may think that is wrong. A cursory search on Google gives you an answer to clean anti-reflective coatings with a 15% IPA 85% H2O mixture, directly from a coatings company. What that search fails to explain is that to REMOVE anti-reflective coatings you use a 85% IPA to 15% salt H2O mixture. The salt merely helps to oxidize the coating faster to remove it. Considering that we in the electronics repair community use 99% IPA most of the time, it is absolutely not recommended to use IPA, even 70% IPA on coated lenses. Sure, if there is no coating, use as much alcohol as you want. I have used all techniques to clean and/or remove coatings. Years ago I would ALWAYS use alcohol to clean lenses and I always hated when coating would start to degrade over time. My thought was that it was just wear and tear. then I learned about all this crap and low and behold, no more degraded coatings.

@dorfschmidt4833 2 года назад

@@housinit If you don't want to use alcohol, use petroleum ether. I use different alcohols and also other solvents. I also have my own mixture for cleaning lenses, mirrors, low pass filter.

@MrGenie23432 2 года назад

@@dorfschmidt4833 a lot of the projector manufacturers specifically recommend against using alcohol or any harsh chemicals. Sure you can use them but you are taking a chance and you are voiding the warranty.

@MrGenie23432 2 года назад

@@dorfschmidt4833 from that projector manufacturer's manual.. "Do not use alkaline/acid detergents or volatile solvents such as alcohol for cleaning lens. If the lens is damaged due to the cleaning process, it is not covered by the warranty."

@owainjones2643 2 года назад

I'm loving the variety on your channel at the moment. So interesting

@Tronicsfix 2 года назад

Glad to hear it!

@HellfireCignus 2 года назад

You had one screw that fell out in the one projector that had never been opened. That sometimes happens when they are mounted to a drop ceiling that has airflow above it. It causes a vibration in the projector that you can actually see. After years of vibration the screws can loosen or fall out. I work in a school district and we deal with this sort of thing fairly often. Great video!

@denisdeseneaza1724 2 года назад

Warning: falling projectors ahead

@marcusdamberger 2 года назад

Wow, top tip there. Good to know!

@martinconnelly1473 2 года назад

I have an upside down ceiling mounted projector (different make) that got this vertical bars fault with a repair that followed the same repair path, open up, exercise the connector, screw tight, close up, all good.

@tafsirnahian669 2 года назад

Dude don't use locktite. Its gonna happen again.

@EmiAntoinette 2 года назад

literally watched this on an optoma projector. it's nice to see the bulb replacement process for when that day comes. love the videos!

@Tronicsfix 2 года назад

Nice! They made lamp replacement easy.

@McDaaniels 2 года назад

As many others mentioned I would have liked to see more testing on these. Output light is not equal to a good projector. Especially on those with loose zoom/focus rings, check if the image is sharp. If you think viewers find this part boring include a chapter to skip to for those kind of viewers

@maximomauriz756 2 года назад

Love you channel and videos bro! Sometimes you're very lucky and sometimes your repair methods are mind blowing. Top content on this platform.

@Tronicsfix 2 года назад

I appreciate that!

@user-td4ln4ct7w 2 года назад

I remember that one control panel we had onboard made this buzzing and the cause of this was the fan. So check it before you sell it. It may cause overheating after like one hour.

@JulianSauco 2 года назад

Yup. When lamps explode some glass shards get stuck in the fans, causing the projector to buzz and eventually shut down. Some compressed air and contact cleaner will work fantastic.

@IanWatson 2 года назад

Ooo, I like the added graphics showing the prices and the product names. Nice addition to an excellent channel.

@Tronicsfix 2 года назад

Glad you like them! My editor added them.

@THE_CARBON 2 года назад

@@Tronicsfix ok

@charmio 2 года назад

Random Tech Tip: When you have a batch of identical things to repair, always turn them all on and record each of their symptoms before even thinking of taking the first one apart. Then group the ones with similar faults together and work on the biggest group first. Also, always label every single part you remove so you can trace it back to the unit it came from.

@williamharris8367 2 года назад

Thank-you for broadening the scope of the channel; this is really interesting!

@Tronicsfix 2 года назад

So glad you're enjoying that. I'll still be doing lots of game consoles.

@mikeanderson1994 2 года назад

Amazing video Steve as always i really love the variety on the channel keep it up bro 👍👍

@Tronicsfix 2 года назад

Thanks! Will do!

@PaoloMarcelli 2 года назад

2:05 Even a lot of Epson and other brands of projectors replacing the lamp is just a matter of removing one screw on the cover and one screw on the lamp itself. I had an Epson projector that used a screw that could be turned by hand, didn't require any tools.

@8amonas Год назад

thanks for providing calming content, really helps

@timehunter9467 2 года назад

The “broken” ones with that ring coming off looked like user error to me. Seeing as it click on like that makes me think they turned it a bit too hard and thought it was ruined.

@SApcProSergijAleksovski 2 года назад

You're the BEST! This is the most relaxing video, easy fixes, everything Works!

@itsmesb4399 2 года назад

The discolouration is from heat, very common with BenQ and Optoma projectors, as well as some Epson models. They tend to run hotter than I like.

@kurt1162 2 года назад

I love these new contents! Keep them coming Steve!!

@Tronicsfix 2 года назад

Thanks! So glad you're enjoying.

@jonaszprzybycien6545 2 года назад

I'm suprised how easy easy this was since projectors aren't excatly known to be servicable with all the properitary parts. Also the lamp swap being this easy is cool.

@MrGenie23432 2 года назад

The lamp has to be easy to replace as it is a serviceable part that wears out and even has a count down timer built into the projector that will warn you when it needs replacing based on hours of use.

@JohnnyBeGood123 2 года назад

Nice variety, the reason why I watch your channel!

@Tronicsfix 2 года назад

Glad to hear it!

@Gaming-Enthusiast 2 года назад

Great video , love these bulk repairs 👌👌👌

@mtshark7 2 года назад

Very nicely done Steve!

@sirogre6884 2 года назад

just ordered the "repairability" shirt in the blue denim. Good lookin shade of blue. Can't wait to get it! Thanks for making these videos and helping an old man that can build you a house if you've got enough lumber and nails, but knows nothing about electronics, and is just trying to learn enough to hold a conversation with his 10 year old son who is a computer/electronics innards whiz.

@gildardorodriguez4356 2 года назад

You really took a shot with your money. Gladly, you repair them. Entraining and encouraging for repair amateurs like me.

@kylerogerspowers2935 2 года назад

You did great. Easy fixes now you know. Good job.

@ArgenCube 2 года назад

Finalllllllllllllllly a successful repair!!!! im very glad for you!, greatings from Argentina man, big fan here

@Big_boom90 2 года назад

Love the channel always feel like I'm learning something! 🙌 👍💪

@krazytaxicabbie 2 года назад

Love the content dude!

@tizoc073 2 года назад

thanks for trying to fix thimgs with no expirence i admire you for that the beginning to obtain it specially with some of the viewers helping in everyway good or bad

@RonnyKnots 2 года назад

Hi there, great channel!! Wouldn't it be pertinent to compare how all these look like when projected onto a screen or even a wall? Some projectors show problem areas or differences even between the same model, or would that be more lens dependent, and so, not much you can do about it? I'm interested to see if any of these come back after selling them

@Tronicsfix 2 года назад

I generally don't test everything on camera as that would be very boring to watch. In addition, if I don't have the time to fully test an item I will sell it as untested so the buyer knows what they are getting.

@krazytaxicabbie 2 года назад

So many easy fixes. When my iPad Air has a screen or battery problem I’ll contact you lol. Great work man!

@boringcats 2 года назад

perfect Video to understand the function. i like to see the insides and how you always get behind the secret, how something works.

@Tronicsfix 2 года назад

Glad you liked it! I enjoyed this one.

@ValexNihilist 2 года назад

I love these videos! Do you know of any resources to get started in learning how to make the types of repairs you do?

@mustafaammar551 2 года назад

very cool video 🔥🔥🔥 wish you all the best

@AudioGuyBrian 2 года назад

Bravo! You saved them all. Much easier to fix than the XBox Series X and PS5's for sure!

@tOSdude 2 года назад

a faster diagnostic check once you had the known good supply installed would've been to pull the lamp door and see the behavior, if it matched the previous behavior you know it's probably that cable

@brandonmakridis1565 2 года назад

I'm curious about your test and how you determined 6-7min is sufficient to call it good. I'm no expert, but I have a couple old projectors I was trying to get working and they don't act up until 25-35 minutes of use. Maybe those are a bit different since they are older though.

@DeepThought420 2 года назад

Awesome video thanks for sharing! 6 outta 6 very nice

@Tronicsfix 2 года назад

I'm still surprised I was able to fix all 6. Thanks for watching!

@ROBOT1990s 2 года назад

All fixed without any spare parts 👏👏👏

@Ryan-jb2hu 2 года назад

Very nice video. Thanks

@thewondersock3818 Год назад

I have a similar projector as at 12:50 (#3). I remember having lines show up on my screen because mine was a refurb unit, and so I noticed that they only showed up when I ceiling mounted it. So naturally, I squeezed it! This was to countact the tension of ceiling mounting it and it fixed it! Now I know it was probably a loose connection on that board with the missing screw you had.

@TheSkaldenmettrunk 2 года назад

Nice. All,done. It was quite interesting.

@Cl-Lego-Studios 2 года назад

You always inspired me to do repairs thank you for the inspiration

@Tronicsfix 2 года назад

Glad to hear it

@M-Guitars 2 года назад

Thx for mentioning a small channel like FixitFrank. I already knew his channel. Needed some information on a projector back then. :)

@Tronicsfix 2 года назад

He does good work

@vesslades 2 года назад

Love your videos! Would like to see you do some TV's though! find that people throw away their TVs all the time and often they work just fine but some are just dead (or cracked in the display) The dead ones though would be interesting to get a better understanding of. Thanks and Keep it up !

@arturkochan4649 2 года назад

the only channell where im not fast forwarding ads

@chasefournier 2 года назад

Great video Steve!

@Tronicsfix 2 года назад

Thanks!

@meatwad74 2 года назад

you should check out the lamp hours before you sell. It’s usually 3000-4000 hrs before u have to replace. I replaced my benq lamp with an original for $170. knockoffs can go for $70. that buzzing and smoke can be because of that. buyers will want that info

@MagikGimp 2 года назад

I was going to say. It usually reports it on the GUI. A lamp can be a lot of the cost so worth watching out for.

@meatwad74 2 года назад

@@MagikGimp reports on gui and keeps notifying u once hours are up. You can keep playing with some tricks but that’s dangerous for the unit. one friend had his bulb pop inside the unit

@mikixyz123 2 года назад

@@meatwad74 my classroom's projector had a filter clean notfication. I think it was a NEC projector.

@mikeshobbiesandrandomstuff 2 года назад

Yes! Finally a big win for you!

@nes199 2 года назад

this is the content that i love

@coolman7716 2 года назад

Wow you editing it so good now I love to watch you more

@xiztence 2 года назад

I'm always inspired when watching your videos :)

@Tronicsfix 2 года назад

So glad you're enjoying these. Thanks for watching

@ratykat 2 года назад

Another thing that's so simple but has caught me out before - my InFocus In83 would work right way up (ie on a table) but would have issues when ceiling mounted (image issues and noticeable "hot" smell). They will auto flip when inverted or there will be a setting to change projection settings for testing.

@-never-gonna-give-you-up- 2 года назад

15:47: that is very loud buzzing! Me: enjoying the background music *ahh yes buzzing*

@slinkytrips 2 года назад

Those speckles on the image are not from dust on the lens, that's the DLP chip that is starting to fail. The easy way to tell is to adjust the focus, if the speckles rotate then it's dust, if they are stationary it's the DLP chip. You will find pixels both stuck on and off, basically that projector is trash. I wouldn't be surprised if the rest also suffer from that issue as they are all DLP and Optoma brand are know to use the low grade chips.

@krazytaxicabbie 2 года назад

You deserve a mil…oh wait…you do have a million subscribers! Rock on!

@Tronicsfix 2 года назад

Lol!

@TheBlackRoc Год назад

I've been watching your vids for about a year now and enjoy them all. You dropped the ball on this one. I know you do more testing but you can't call something fixed if you only fixed one part of it and not the main part of what it does, project an moving image not just light. You should have hooked up at least a console to them to see if they can receive and transmit a signal. I'm not talking about all the things that can be wrong like blurry image but just a image in general.

@carloosgongora1701 2 года назад

nice video 👍🏻, it's posible to change the fans in the projector for noctua fans or for a quiet ones??

@alisonmcgregor2002 2 года назад

wow, these fixes were incredibly easy!!! so satisfying. you’re gonna get a lot of money for all these

@override7486 2 года назад

What? I'm pretty sure any profit (if not a loss really) would be marginal. You must be kinda desperate to buy used projector like this, unknown condition. time use etc., considering "Optoma" means cheap and nasty stuff in general. Low-end sheit as seen in the video.

@FixitFrank 2 года назад

@TronicsFix Thanks for the shout out. Let me know if you ever have any questions!

@Tronicsfix 2 года назад

Will do!

@JoshuaPare 2 года назад

quick question cause i have been asking around i just replaced both my joysticks on my old xbox 360 remote and when i test it not in game it shows everything works fine but in game it thinks the trigger is being used and the left joystick thinks its being pushed down i have now tested everything from the schmatics like the traces those are good and the joystick movement is good i have no clue why its doing that and also no one online seems to know either

@chriseyes20 2 года назад

Idk maybe a bad part or something got hit or messed up while repairing them is all I can think of sadly but even then it’s hard to say not an expert though so sorry

@JoshuaPare 2 года назад

@@chriseyes20 guess what after doing some research and thanks for responding i found out that some xbox controllers have paired joysticks so that means its a 50/50 chance the new joysticks will work with the board cause i rechecked everything and its all perfect conections

@HitchinValeting Год назад

Nice, well done.

@FluxxV 2 года назад

Another banger of a video my good sir

@Tronicsfix 2 года назад

Appreciate it

@isettech 2 года назад

I've skipped the buy the broken ones and went straight to the office upgrade auctions. Bought 6 projectors for $200 and they worked. Bought a dozen monitors for about $10 for each. Sold them locally on Craigslist, but kept the best monitor and projector for myself. Be sure to go into the projector menu and pull up the lamp hours. Helps to sell them if they have low hours on the bulb.

@jeor1298 2 года назад

Fix it frank is awesome! He is a brain trust of projector repair, so neat to hear that name!

@chadbranston9741 2 года назад

oooo fancy new graphics, I'm liking it

@CarlitoCulpable 2 года назад

I would love to see a video of all the unfixable elitems you got laying around the shop!

@sleepykirbo6392 2 года назад

It's good to know that JLCPCB assigned Manuel to assemble those pcb's

@Mr31Chris03 2 года назад

have a look on the color wheel (only to find in DLP projectors) somtimes the ball-bearing dies and this could be the buzzing noise i had such a problem in my acer projector it sits right between the lamp and the very beginning of the light tunnel and for the lamps you cant really tell if a lamp is good or not by looking at it the lamp driver board has a complex voltage and current parameter program and it will monitoring voltage and current used by the lamp during start up this kind of lamps need low current at the beginning to warm up savely but the voltage and current is getting up after a while and then it gets brighter but after a while the lamp will have a constant current mode but the voltage can stil vary if the lamp is getting older the normal voltage rises and if its out of spec you will get a lamp error keep in mind the logic of this board can only measure it when the lamp is in full power mode (warmed up) that means if you have a bad lamp it will kick of at the very end of the warming phase or even after hours of being on due to rising voltage this is caused because the arc in the lamp needs more voltage to stay stable due to rising preasure inside the bulb by vaporising metal

@Christophersanchez1326 2 года назад

I found a projector in a dumpster, it still had a property tag on it.. Gave a call and yup it was trashed.. Still works but has some pixels problem on one side. Works for me. 😁

@Group-935 2 года назад

Wow! This is the earliest I have ever been to a video.

@Tronicsfix 2 года назад

Thanks for watching!

@Group-935 2 года назад

@@Tronicsfix Your welcome sir.

@MrCallmevader 2 года назад

I really like this kind of content you should really keep on mixing it up

@Tronicsfix 2 года назад

Thanks, will do!

@torridice 2 года назад

Can we get an update on the actual sales? Nice vid!

@nickc7494 2 года назад

Excellent content

@jimlewis1 Год назад

I bought a refurbished projector, which worked for a while, then one day went 'pop' when I turned it on. On opening it I found broken glass from a previous failed bulb and plenty of dirt and dust. So much for refurbishing. however, I was able to replace just one $5 component in the power supply and it has been fine since. For a £400 projector, it was nearly junked over this cheap part. It really is worth trying to fix these things, but yes, I did get a couple of pretty good jolts off the caps. they are serious in these projectors!

@leeartlee915 2 года назад

I use to work in an IT department and these things would go belly up all the time (not these models but projectors in general). The problems would be so varied that sometimes we could fix them in like 2 mins. Other times, we’d have these bad boys back in our shop for a week and couldn’t diagnose the problem. I consider myself pretty handy but this type of item would stump me a lot.

@tHEuKER 2 года назад

Just wanted to point out that what you were calling zoom ring is actually a focus ring. Nice vid!

@itsmesb4399 2 года назад

Also replace the thermal compound on the DMD chips so they don’t get stuck mirrors. That’s the chip on that board that is screwed on perpendicular to the main board, near the colour wheel, attached to the optics assembly.

@morganlittle8404 2 года назад

Someone probably already said it, if there is a Arc lamp in number six, I haven't found the spec sheet for it but high hour arc lamps produce a buzzing sound. (I have an Epson that does it. $150 lamp vs $300 tv... I no longer use the projector)

@JakeJoris 2 года назад

Buzzing on any projector isn't good. The most common cause for a buzzing noise is a failing color or phosphor wheel.

@morganlittle8404 2 года назад

I was going off what I know from personal experience, I would not have thought about that.

@MrGenie23432 2 года назад

Those are pixel shift projectors it is a know side effect of the pixel shift technology as the DLP is being mechanically shifted 240 times a second. They often have a quiet or silent mode that turns it off but you go from 4K to 1080P as you disable the pixel shifting.

@Kenjitsuka 2 года назад

Nice new animations!!!

@Tronicsfix 2 года назад

Glad you like them!

@SenujaThalakumbura 2 года назад

@ tronics when useing a projector pls let it cool down while its pluged in other wise it could burn the hot lamp

@xabee-eagle 2 года назад

Did you take a look at the airfilters? Do you check lamplife as well?

@BEDROSs 2 года назад

great video Steve, these profits are amazing! you should do a video on how you find so sweet deals on eBay listings. I know it's as simple as taking your time until you find something interesting but I can't find anything remotely that good nowadays on ebay nomatter how much time I spend searching. greetings from Greece..

@JuicyJakeRepairs 2 года назад

i like the price tag animation in this 🙂

@djashley2002 2 года назад

In my experience the buzzing could either be coming from the fan (most common) or the colourwheel actuator (can be trouble). If it's really bad it's often worth sticking a finger on the fan casing to see if there's any severe vibration. If so, it's not too bad a job to replace it.

@dontakeshit 2 года назад

Could be coil whine from power supply too

@marcusdamberger 2 года назад

Those last two were 4k, they use e-shift Pixel shifting technology to generate 4k resolution from 1080 panel. i.e. the panel shifts over slightly to generate the other half of the pic, creating a full 3840x2160 picture. Only Sony and JVC (if I remember correctly) are the only native resolution 4k projectors that use full resolution LCD panels. With 4096x2160 on their panels. But they cost a ton more than these do.

@MrGenie23432 2 года назад

@@marcusdamberger yup and I believe these models do just under 240 shifts per second so hence the low buzz.

@TheGlitchyMario 2 года назад

I like how you’ve been branching out to other devices, rather than game consoles. I can’t wait to see what’s coming up next!

@rogermohammed86 2 года назад

Is anyone going to talk about the fact that he tested the AC terminal and both ends of the fuse for voltage? when he should be testing after the bridge rectifier for voltage on the DC side.

@kriswillems5661 2 года назад

Yes, that was just weird....

@2DSwagGod 2 года назад

wtf was he doing lmao 💀

@MrGenie23432 2 года назад

Maybe additional checks but worth noting that most modern power supplies do not have bridge rectifiers as they are too inefficient especially for standby power requirements for energy efficiency.

@struanlawrie9819 2 года назад

I fixed a bunch of projectors from my school skip, about 10 in all, all had the same issue, light valve was broken, could be fixed with a screw adjustment. Also good to always replace the lamps when you do a fix. They were all NEC m230x if anyone was wondering, quite old now and not worth much

@marcusdamberger 2 года назад

That's the problem with older projectors from just a few years ago, they may have some comon fix thats easy to do. But then the tech moves so fast, the value of them plumets because the current gen is so much better quality. I mean who wants a projector that has a native resolution of 1024x768 XGA resolution with 4:3 aspect ratio? You see a ton of used ones like that on eBay, sure they are bright 3200 lumens, but their contrast ratio is horrible.. What is awful on eBay are the cheap Chinese no name brand projectors claiming ridiculous specs for cheap. Stick with name brands like Optoma, Epson, BenQ, Sony, JVC etc. Avoid those Chinese knockoffs like the plague, I've opened them up, hot glue holding down wires, plastic lenses, single speed fan, (for a time, crazy hot quartz light) single LED bulb like those used in drop work lights for shop work.. same control input board used across every cheap Chinese projector thats 1/4 the size of control board you see here. That can accept up to 1080p resolution input that gets converted down to LCD panel resolution that is SD resolution (480) that has crappy contrast. And everything is plastic inside, all subject to that heat the LED high output light puts out. Its slightly better than the old quartz light they used to use, but still tons of heat. Nevermind the fan noise is so much more than on a name brand projector. They just pump these projectors out by the ton, and they end up in our landfills within a year or two because the LCD panel gets burned from the heat. All pure junk. Just buy a name brand projector thats used and it will last years and be far superior in picture quality for the same price. And those $100 projectors listed have almost no brightness to them. More than useless if there is any ambient light in the room.

@rinaldslibeks1592 2 года назад

congragulations for fixing all of them!!!!!

@Tronicsfix 2 года назад

Hey thanks!

@rinaldslibeks1592 2 года назад

@@Tronicsfix i was wondering if you can try to fix hard drives maybe or gaming mouses and keyboards or restaurations or your child hood tech documentery would be great for other content

@LPcrazy_88 Год назад

To explain the smoke, any projector (the light bulb specifically) runs incredibly hot and essentially you are seeing burned up dust. Something worth cleaning for sure, but definitely normal for any projector. I repair and maintain medical equipment which includes projectors for Optometrists.

@jessekauffman3336 Год назад

Love your videos

@misterbonzoid5623 Год назад

After 14 years making a living repairing mainly audio amplifiers I bought a new £3,500 Dell S718QL UST laser projector for the college where I work in 2018. While soak-testing it I noticed a faint yellow staining on about 20% of the middle of the image on the white test mode (you can get it to project various single colour rectangles). Subtle but faulty and not a dirty lens. After a long phone call to one of Dell's engineers in Scotland they accepted it was faulty and replaced it. Most people wouldn't have noticed the problem in a college, although a home-cinema owner might have.

@a2cryss 2 года назад

We have bought 7 Optomas that look like the first 2. 3 are dead but all are damaged. They do not ship well. One had the lines and a partially unplugged connection like the 3rd one(fixed). One has a fan noise. 3 have broken light reflectors (fixed with bulbs from dead units). 2 have have the metal nubs on the buttons broken off (fixed with built up crazy glue on the plastic of the button). Some have broken case plastic. Our instructors wanted bright and high resolution so we got 4000lumen 1920x1200 units. We need a more rugged replacement.