Hi Frank, Thank you so much for this video. I replaced the bulb on my 5 year old W2000 after the bulb exploded (~3000 hours}. While I had the cover off, I noticed it was very dusty so I got trigger-happy with a can of compressed air and blasted the dust everywhere. When I powered on, I had terrible smudges. Focussing the lens, I could bring the dust into perfect focus, so I knew there was dust on the DMD chip. Found this video and followed along step-by-step. The DMD chip had a clear layer of dust on it. I blasted it with the can of air (I don't have a compressor) and cleaned all the rest of the fans and case. It's so much better now! Still 1 stubborn speck there though, so I'm going to tear down again. This time I'll try blowing air into the "hatch" you show in your other video first. (BenQ HT2050A DLP Projector | Optical Assembly Cleaning video.) I never would have attempted this without your video. I really appreciated you showing the re-assembly too. Made it much easier to follow along and not worry I missed something. **Update** For anyone curious how my 2nd attempt worked out: I took the cover off the projector and was able to access the hatch once the main plastic cover was off. I only had compressed air in cans and they weren't powerful enough to properly blast out the dust. Also I was worried about causing condensation in there with the cold air. Without a pump like the one shown in the video, I had to improvise. I unscrewed the connections at the end of the hose on my floor bike-pump and found that that gave a pretty good blast of air. I wanted to focus it more, so I used electrical tape to seal on a new head from a silicone sealant cartridge. This gave a great focussed blast of air. Using that, I blasted the hatch a few times and tested the projector with the cover off. I ran a "white background" video on TH-cam and focussed out until I could see tiny specks remaining on the DMD chip. Powered off and blasted a few more times. Now there are barely any specks there at all. You can only see them when focussed out on a white background. Once the picture is in focus, they are invisible. I'm delighted. Thanks Frank. I posted all that long info in case it helps someone else with similar problems and lack of tools! Thanks, Cd
You are so welcome CD, I am really glad to hear your update! I also really like your air pump idea. I might have to look at that method myself. Cheers!
Thank you for your detailed repair experience on the w2000. My w2000 bulb blew and apparently I need to do similar to get all the glass out, so after hearing your success am going to give it a try and save the $1000 repair bill I've been quoted. I hope Frank's video equally leads to my success too (Oh just noticed that yours blew at 3000 hours... curious mine was about that old too, from what I saw before it blew -as the image projection seemed to dim a day before it blew out and I remember looking at the hours in the menu. Makes me wonder if the life on the bulbs it came with weren't up to spec for that batch?)
Currently sitting here with my HT2050A getting ready to tackle what I suspect to be be dust on the DMD chip. I was originally just going to used canned air but after reading this, Im going to bring in the compressor. I'll let you know how it goes and thanks for posting this!
Thank you very much for this video. After replacing an exploded lamp on my ht 2050, there appeared all these smudges in low light scenes, but nothing at all in scenes with good lighting. I thought perhaps it was something broken inside but eventually realized that these smudges could be brought into focus by changing the focal point, clearly revealing their nature. I finally did a full teardown and cleaned the whole thing. The dmd was covered in dust, cleaned carefully and voila! like new. The explosion must have sent dust everywhere.
If I were in the States I would have sent my projector your way eyes closed, and demand to pay you for your services. Teaching people is more than enough! Looking forward to the follow up video! I would have never guessed that lamp was the problem! Nice one Frank as always!
@@FixitFrank i have the benq w2000 and i directly smoked under the beamer for years, so you can imagine how bad it looked. Today i cleaned it as good as possible, the beamer was not in use for the last 3 years. After i cleaned it i started the beamer and the fan at the lamp is really loud, it rattles. Just ordered a new one from china. I hope its the right one. And the i checked the image, when im in focus i can see 2 spots in the image and when i defocus i also see a lot of stars, guess i have to clean it like you did in the Video. But the lamp also has about 3500h in eco mode. Do you think i should already order a new lamp?
Thank you this teardown has very helpful. I just bought a used HT2050 and noticed it had the same spot issues. I bought a camera sensor cleaning kit and carefully cleaned the DMD chip and color wheel. Also cleaned everything else while it was open. That removed my spots. Didn't need to replace the bulb. Thanks again for the video.
Great work. Thank you. I just cleaned my W2000 and it is surprisingly similar. You could put W2000 in the title. The W2000 has an internal HDMI cable and a USB connector. I did not disassemble the lens but cleaned the color wheel. My lens and the chip looked clean even after 5500 hours of usage. Oh, and I don't use electrical screwdrivers in those situations, at all. 🙂
Hi Frank. Thank you for your videos! I ran into an issue with trying to reassemble my 2050. I reached out to you on Ko-fi, but thought i would try you here as well.
Hello Frank, thank you for these videos. I'm not super handy but successfully cleaned and replaced a lamp with relative ease. However, my color wheel broke and I had my friend who is very adept at this kind of thing "Fix it" but he said the lamp has no power now. He said I need a new lamp - without looking at it, is that something that could happen (meaning the color wheel causing the lamp to not work) or do you think it was not reconnected properly? Is there any other troubleshooting areas that go with color wheel replacement or do I need to just suck it up and get the lamp? If you are willing to work on it, what do you charge?
You need a good new lamp to be safe. Without a known good lamp, you are shooting in the dark. That said the color wheel is critical for operation. If the projector doesn't see the wheel spin up, it wont ignite the lamp. I dont know what your friend did but a color wheel replacement(if done properly) wont cause this. I suspect he forgot to plug something in or isn't giving you the full story.
Hey Frank, I am interested in sending you my HT2050 for repair. Power light is green when i plug it in, fans start, sounds like the projector is booting up properly. Then lamp light starts flashing red, power starts flashing green and then lamp light goes to solid red until the projector goes back into standby mode with orange power light. No light whatsoever coming from the lens/lamp. Have not tried a new lamp yet. Noticed the plastic lamp connector was slightly discolored. The small plastic connector/snap piece broke off while disconnecting it. Did my best completely breaking it down and cleaning but same issue. If the projector has a red lamp light wouldn't a new lamp just have the same issue since I am unable to get the lamp to light to reset the timer?
Fortunately the lamp timer will not cause your projector to not start. Only a handful of older models did that. Never BenQ thankfully. I suspect you have another issue, maybe a color wheel, maybe a ballast or power supply issue. The missing clip on the connector is okay. Not ideal but not a huge issue. I'd be happy to look at it if you want. But first, let me ask, where did you get the replacement bulb and is it an Osram?
@@FixitFrank I did some digging. Looks like we got it on Amazon. Which now I see was a mistake. It's either a Pugody or Rembam. Think Pugody. My wife bought it about a year and a half ago. Going to buy a good Osram lamp first and see if it will work. Thank you for your reply!
Hi frank, a fan of my benq w2000 makes some noises so i wanna change it, its the bigger one on the left front side. I ordered one from aliexpress and now i see that i have ordered the small one thats beside the lamp, do you know where i can find out what fan the bigger one is and the size without opening the beamer again?
I'm sorry, i don't know the part number. I looked around and found some possibilities online. The main issue is that you buy the same model fan. The company I use may know. gydz@timeprojectorlamp.com is their contact info. I buy most of my parts through them . They're in China and ship worldwide. Very reasonable prices too.
@@FixitFrank well I dont have nothing now but I have had to have 2 DMD chips changed in two benq projectors and a cleaing on a nother one they cost so much too keep up now i have a new one and it is not broken yet
Hello Mr Frank, thank you for all your videos. I am also having kind of a similar problem. Neither of my fans are running and now when I use the projector it’s get really really hot. I also noticed the fans don’t turn on n a lot of dusk have been collected inside. Would it be wise to change fans or do you think something else is the problem ?? Please help, I would greatly appreciate it as I am currently stationed in Guam and can’t send my in for repairs.
Hi! If your projector is not shutting down and giving you a temp error, it is probably working properly. The fans will cycle on and off as needed so they may not be running when you look. You definitely want to remove the dust as that will help the projector run cooler for sure but I would not worry about the fans unless you are getting a Temp error. If you do get a temp LED flashing and the projector turns off, then I would look at changing the fans. Projectors do run very hot. The exhaust air can be 140-170f / 60-77c which will feel very warm.
Frank, like your Channell. My 3 year old Ben Q TH671ST fans have started to become much noisier tgsn when it was new. Do you think If I took the outer shell off and cleaned out some dust it would improve the situation?
I'd be more suspicious of the color wheel. Those fans should be okay for at least 5 years but I could see the color wheel going bad. if the noise stops as soon as you turn it off before the cooling cycle ends, then you know it's the color wheel. Cleaning the fans anyway is never a bad idea just be careful you are not fixing something that isn't broken if that makes sense.
Hmm somehow this makes no sense to me. When you saw the white spots for the first time they became more visible after you took the picture out of focus. Stuck DMD mirrors would be best visible when the image is in focus right. And how can the lamp fixed the issue? All the lamp does is throw light into the projector. Spots and this like that will most likely be in the optical parts of the projector. Weird...
the whole problem made no sense to me at first. The lamp was not shining bright enough. When a lamp is dim, it shows more dust bits that normally it would shine through/around and wash out. Stuck DMD will not always be in focus if the pixels slipped. I have seen plenty where the substrate that holds the mirrors lets loose and mirrors are no longer in the same focal plane. But the focusing was why I stopped thinking it was the DMD. I was going off the lamp hours in the projector without knowing they had been reset.
Hi Frank, great video, I wouldn't have attempted the strip down without it for fear of breaking the casing. I have a identical projector in the UK its badged as a W2000, the only difference I can see is it has the capacity for a add-on wi-fi component. Recently my lamp exploded and a small puff of smoke can out of the projector and tripped my mains electrics. I've stripped the projector about four times and removed all the glass and dust, there was a piece of glass in the lamp fan that I'm guessing caused the machine to cut short the initial start up. I also noticed something was interfering with the the colour wheel so I dismantled it but found nothing, on reassembling it seemed free wheeling. I've tried two new bulbs, and checked the bulb housing for continuity. The machine boots up and I can hear the fans but soon powers down without the lamp coming on, then the red lamp warning appears and the machine goes into standby. I took out the bulb assembly and can see the colour wheel spinning freely. Unfortunately I'm not in the states otherwise I'm at the point where I'd send it to you! Do you think it could be the ballast power supply? Do you think its worth dismantling the machine to clean the colour wheel sensor?
Hi Graham, I am curious about the puff of smoke and the tripping of your RCD. IT kind of sounds like you may have had a main power supply failure(power factor correction circuit). I would check and see if any of the capacitors (mainly the large 400V) have vented. If the lamp burst and the arc points hit together before the ballast shut down, it can cause a bit of a domino affect failure. The ballast can be damaged which then takes out the PFC section of the power supply. I'd be leaning towards checking the mains supply first(that lowest board that plug into the ballast and mainboard). Then the ballast. The ballast wont start unless the mains supply is happy. How comfortable are you with a volt meter? Cheers from the other side of the pond!
@@FixitFrank Thanks for the prompt, insightful reply Frank. I've stripped down the colour wheel since the machine needed dismantling anyway and it visually looks fine. On checking the PFC, the large capacitor seems fine, but the small black one 1000uf 16v (which can be seen at 26mins) nearest to the connectors that protrude through to the upper board seemed to show a reading. I am however checking it in circuit and with my cheap multimeter, I don't feel competent enough with my cheap iron to remove it. The other two (brown 680uf25v) seem ok. None show signs of leaking or bulging. I checked out your ballast diagnosis video and found that one of the four mosfets is shorting and beeps with a continuity test across all posts. I might have ago at removing it since I have a replacement on the way. Do you think the black capacitor on the PFC could be problematic? I don't want to damage the new ballast. Do you think the puff of smoke may just be the from the exploding bulb? There's no sign of scorching on any components or anywhere else inside the machine. Again, thanks for your expert opinion.
If it was a puff of smoke rather than a cloud, then it might have just been the lamp you saw smoking. The crack noise may have been the bulb bursting. The ballast failure is pretty spot on though. I have seen that a bunch of times. I would suspect the rest of the caps are OK . It would be very obvious if they failed if the smoke came from them. More likely the bulb burst, shorted out and wrecked the one mosfet. Then shut down the power supply. The PFC is still suspect but you can check that with the ballast removed. You should get about 380Vdc on the power input to the ballast when you start the projector. It should go high to 380 for a moment before it sees no response from the ballast and shuts back down. If you get 350-300, then the PFC circuit isnt working. The mosfet for it as well as the fuse resistors and maybe a diode could be damaged(only if you dont get the 380). I would connect the ballast back up without the power leads connected. Meaning connect the control wire cable only. That will load down the control circuit correctly. Then carefully hold the leads on the wire that would plug into the ballast from the power supply and turn the projector on. The 380 should show about when the color wheel starts to spin. Then the wheel will stop and the 380 should drop to 300-350v. As long as you see that 380, the rest is probably OK. You just may need a pair of mosfets. I say pair because you want to replace them in pairs even if one seems OK. Or if you can find a used/working ballast. As of now, I would start with check the PFC voltage and go from there. It sounded a lot more dire at first, but it may not be as bad as it seemed.
@@FixitFrank Thanks Frank, I'll test at the weekend when I'm off work. I've ordered a new Osram ballast from China and am trying to source the correct mosfets here in the UK at least I'll have a spare one if I manage to repair it. I've just returned my second Osram lamp back to eBay, the first was from Amazon UK, both were fakes! I've had to order a third from Amazon.com from your side on the pond to hopefully guarantee its genuine! MANY, MANY thanks for your invaluable help and advice, hopefully the PFC will be okay and when the parts eventually arrive I'll let you know how I get on.
Great question! Believe it or not, most of the time filters cause more damage. Not because they are wrong but because most people forget/neglect to deal with them. They get clogged and then the projector truly cooks itself to death. A lot of companies have gone for the "let as much air pass through as possible" approach and more times than not the dust goes right through.
Hello Frank, I wanted to clean the projector from the inside because it has been bothering me for a while that the fans are not running during operation. After cleaning, I closed it again. Unfortunately, the device does not turn on at all now. Do you have any idea what could be the problem?
hi! Hard to say entirely without seeing it. but I suggest going back over your work slowly. Most likely you forgot a wire or its not seated well enough. The thermal fuse is easy to forget and getting hte low voltage pins lined back up with the mainboard is a common mistake. There have been times where I had to take apart and reassemble a projector 5-6 times because I forgot this or that.
Hey Frank. Great videos! I've been able to completely teardown my BenQ HT2150ST and give it the first cleaning in 4 years 😆 I think I am having fan issues and need to replace the fan 3 and\or fan 1. Which fan is which? I can't seem to find the info anywhere. Please help
Fan 1 is the exhaust fan. Fan 3 is the lamp blower fan. It's probably worth changing both. They are hard working and if they fail or act up, your lamp life will be extremely shortened. Thank you for the kind words. I appreciate it 😊
@@FixitFrank your the best! I again used one of your videos and figured out how to get to the service menu. Sure enough it's the blower fan. But exhaust fan is getting done too. Thanks again!
@@FixitFrank Hello Mr Frank, thank you for all your videos. I am also having kind of a similar problem. Neither of my fans are running and now when I use the projector it’s get really really hot. I also noticed the fans don’t turn on n a lot of dusk have been collected inside. Would it be wise to change fans or do you think something else is the problem ?? Please point me in the right direction.
@@FixitFrank where do you get the fans from? I ordered one from aliexpress today but im not sure if its the right one. I ordered the aub0712h-c. I have a benq w2000
Thanks for this, one of the only good tear downs I could find for this particular model. Up until tonight everything was working fine aside from a hair I noticed on the screen recently. Now when I turn it on I get the fans and the lamp light flashes red and then solid red. Whole unit pauses and then powers down. According to the manual it's "Lamp1 error in normal operation". I just ordered a replacement bulb that'll arrive in a couple days so I can rule that out. Had it since September 2021 so it's under warranty but I'd rather not have to wait to get it up and running again. Do you think it's worth digging into this thing further to see what's up? Or just send it in? Thanks again
I'd use that warranty. As much as I would like to say "do this or that", if its this new and having issues, it would concern me that something serious might be building up to happen.
I'd have to see a picture or video of the problem before I can say so. I'd hate to have you ship it in and then find out it needs hundreds upon hundreds of dollars worth of optical parts.
then you probably missed something during reassembly. Go back over your work and check the alignment of all connections, especially the low voltage pins from the power supply to the mainboard.
I actually had one of these (well, the 2050A) for a short time. It wasn't getting along with the HTPC I was using at the time, so I ended up sending it back and getting an Epson 2150 which I'm still using now. Kinda a shame because the color and everything was great. Really quiet too (I'm sensitive to noise). Really interesting to see inside one of these. I do remember the DMD fan didn't spin unless I put it into eco blank, but I didn't have it long enough to see the other scenarios for it to spin up. I would have thought the lamp fail before getting dim enough to not shine past dust inside. Guess not all the time. Also, the free labor thing would be cool for a video, but you're kinda already doing that, right?
Exactly. It really depends on the issue, what sort of free time I have etc. This was recorded back in March so things have changed a little. I have a day job (obviously) otherwise I'd be more into charging a normal rate.
Hi Frank, love your videos! I have an Optoma GT1080HDR with a scuffed outer lense. I tried to polish it out which helped a little bit like take away the dark spots on the screen and now it looks ok but has a blur spot that's very annoying. You mentioned in the video that you could try to fix the problem so you could do a TH-cam video on it. Well if it's at all possible I'd like to send it out to ya. I'd pay all shipping and replacement parts of course. Let me know. Thanks!
Pardon my ignorance but I'm not sure what you mean? If you mean on the projector, I'm not honestly sure. I repaired it for someone and they set it to their liking. I did not notice any EQ settings
sir i have optoma Hd 143x projector , am used to 2nd monitor on macbook pro , i have problem if laptop charger connect time projector not view display what is right solution , i have try changed hdmi cable and power supply cable not working
That is an unusual problem! I would check the laptop charger. Make sure it is proper wattage for the macbook. I have never seen this problem but if the power is too low from the charger the second display may not work properly.
as much as I would appreciate your free labor I want to see you get paid for your time. maybe one free labor for youtube subscribers a month otherwise you'll have lots of projectors heading your way lol .. I have seven projectors ( five 1080p and two 4k shift ) don't ask my why . clearly I have a problem. whenever any of my PJ's needs service you'll be my first thought. thank you for sharing your knowledge and expertise
Hi Frank,
Thank you so much for this video. I replaced the bulb on my 5 year old W2000 after the bulb exploded (~3000 hours}. While I had the cover off, I noticed it was very dusty so I got trigger-happy with a can of compressed air and blasted the dust everywhere. When I powered on, I had terrible smudges. Focussing the lens, I could bring the dust into perfect focus, so I knew there was dust on the DMD chip. Found this video and followed along step-by-step. The DMD chip had a clear layer of dust on it. I blasted it with the can of air (I don't have a compressor) and cleaned all the rest of the fans and case. It's so much better now! Still 1 stubborn speck there though, so I'm going to tear down again. This time I'll try blowing air into the "hatch" you show in your other video first. (BenQ HT2050A DLP Projector | Optical Assembly Cleaning video.)
I never would have attempted this without your video. I really appreciated you showing the re-assembly too. Made it much easier to follow along and not worry I missed something.
**Update** For anyone curious how my 2nd attempt worked out:
I took the cover off the projector and was able to access the hatch once the main plastic cover was off. I only had compressed air in cans and they weren't powerful enough to properly blast out the dust. Also I was worried about causing condensation in there with the cold air. Without a pump like the one shown in the video, I had to improvise. I unscrewed the connections at the end of the hose on my floor bike-pump and found that that gave a pretty good blast of air. I wanted to focus it more, so I used electrical tape to seal on a new head from a silicone sealant cartridge. This gave a great focussed blast of air. Using that, I blasted the hatch a few times and tested the projector with the cover off. I ran a "white background" video on TH-cam and focussed out until I could see tiny specks remaining on the DMD chip. Powered off and blasted a few more times. Now there are barely any specks there at all. You can only see them when focussed out on a white background. Once the picture is in focus, they are invisible. I'm delighted. Thanks Frank. I posted all that long info in case it helps someone else with similar problems and lack of tools!
Thanks,
Cd
You are so welcome CD, I am really glad to hear your update! I also really like your air pump idea. I might have to look at that method myself. Cheers!
Thank you for your detailed repair experience on the w2000. My w2000 bulb blew and apparently I need to do similar to get all the glass out, so after hearing your success am going to give it a try and save the $1000 repair bill I've been quoted. I hope Frank's video equally leads to my success too (Oh just noticed that yours blew at 3000 hours... curious mine was about that old too, from what I saw before it blew -as the image projection seemed to dim a day before it blew out and I remember looking at the hours in the menu. Makes me wonder if the life on the bulbs it came with weren't up to spec for that batch?)
Currently sitting here with my HT2050A getting ready to tackle what I suspect to be be dust on the DMD chip. I was originally just going to used canned air but after reading this, Im going to bring in the compressor. I'll let you know how it goes and thanks for posting this!
thank you very much for this video...I am not in USA, but this video enabled me to fix my projector myself, much appreciated
This honestly makes me really happy
Thank you very much for this video. After replacing an exploded lamp on my ht 2050, there appeared all these smudges in low light scenes, but nothing at all in scenes with good lighting. I thought perhaps it was something broken inside but eventually realized that these smudges could be brought into focus by changing the focal point, clearly revealing their nature. I finally did a full teardown and cleaned the whole thing. The dmd was covered in dust, cleaned carefully and voila! like new. The explosion must have sent dust everywhere.
Nice work! That is awesome to hear you got it sorted
My bulb also exploded the first time, maybe i have the same issue because i also see some dust when i defocus
If I were in the States I would have sent my projector your way eyes closed, and demand to pay you for your services. Teaching people is more than enough! Looking forward to the follow up video! I would have never guessed that lamp was the problem! Nice one Frank as always!
It feels cool knowing I was here before everyone else (I commented after I finished watching)
thanks for this video Frank, had trouble finding a genuine replacement lamp. The reference link was quite helpful!
You are very welcome! I am very glad to hear it works for you!
@@FixitFrank i have the benq w2000 and i directly smoked under the beamer for years, so you can imagine how bad it looked. Today i cleaned it as good as possible, the beamer was not in use for the last 3 years. After i cleaned it i started the beamer and the fan at the lamp is really loud, it rattles. Just ordered a new one from china. I hope its the right one. And the i checked the image, when im in focus i can see 2 spots in the image and when i defocus i also see a lot of stars, guess i have to clean it like you did in the Video. But the lamp also has about 3500h in eco mode. Do you think i should already order a new lamp?
Thank you this teardown has very helpful. I just bought a used HT2050 and noticed it had the same spot issues. I bought a camera sensor cleaning kit and carefully cleaned the DMD chip and color wheel. Also cleaned everything else while it was open. That removed my spots. Didn't need to replace the bulb. Thanks again for the video.
Awesome! I am so glad to hear it. Thank you for letting me know.
Great work. Thank you. I just cleaned my W2000 and it is surprisingly similar. You could put W2000 in the title.
The W2000 has an internal HDMI cable and a USB connector. I did not disassemble the lens but cleaned the color wheel. My lens and the chip looked clean even after 5500 hours of usage.
Oh, and I don't use electrical screwdrivers in those situations, at all. 🙂
Thank you for that information! I will add that to the description. Much appreciated!
Thanks for video it's very useful. Helped me a lot with disassembly my W2000 after bulb explosion.
Hi Frank. Thank you for your videos! I ran into an issue with trying to reassemble my 2050. I reached out to you on Ko-fi, but thought i would try you here as well.
Thank you!! I will be in touch this evening.
Hi, I fixed my projector with the help of this video. Thank you so much for doing this!
You are very welcome!
Hello Frank, thank you for these videos. I'm not super handy but successfully cleaned and replaced a lamp with relative ease. However, my color wheel broke and I had my friend who is very adept at this kind of thing "Fix it" but he said the lamp has no power now. He said I need a new lamp - without looking at it, is that something that could happen (meaning the color wheel causing the lamp to not work) or do you think it was not reconnected properly? Is there any other troubleshooting areas that go with color wheel replacement or do I need to just suck it up and get the lamp? If you are willing to work on it, what do you charge?
You need a good new lamp to be safe. Without a known good lamp, you are shooting in the dark. That said the color wheel is critical for operation. If the projector doesn't see the wheel spin up, it wont ignite the lamp. I dont know what your friend did but a color wheel replacement(if done properly) wont cause this. I suspect he forgot to plug something in or isn't giving you the full story.
Hey Frank,
I am interested in sending you my HT2050 for repair. Power light is green when i plug it in, fans start, sounds like the projector is booting up properly. Then lamp light starts flashing red, power starts flashing green and then lamp light goes to solid red until the projector goes back into standby mode with orange power light. No light whatsoever coming from the lens/lamp. Have not tried a new lamp yet. Noticed the plastic lamp connector was slightly discolored. The small plastic connector/snap piece broke off while disconnecting it. Did my best completely breaking it down and cleaning but same issue. If the projector has a red lamp light wouldn't a new lamp just have the same issue since I am unable to get the lamp to light to reset the timer?
Fortunately the lamp timer will not cause your projector to not start. Only a handful of older models did that. Never BenQ thankfully. I suspect you have another issue, maybe a color wheel, maybe a ballast or power supply issue. The missing clip on the connector is okay. Not ideal but not a huge issue.
I'd be happy to look at it if you want. But first, let me ask, where did you get the replacement bulb and is it an Osram?
@@FixitFrank I did some digging. Looks like we got it on Amazon. Which now I see was a mistake. It's either a Pugody or Rembam. Think Pugody. My wife bought it about a year and a half ago. Going to buy a good Osram lamp first and see if it will work. Thank you for your reply!
@@FixitFrank Do you have a recommendation on which lamp to buy?
Hi frank, a fan of my benq w2000 makes some noises so i wanna change it, its the bigger one on the left front side. I ordered one from aliexpress and now i see that i have ordered the small one thats beside the lamp, do you know where i can find out what fan the bigger one is and the size without opening the beamer again?
I'm sorry, i don't know the part number. I looked around and found some possibilities online. The main issue is that you buy the same model fan. The company I use may know. gydz@timeprojectorlamp.com is their contact info. I buy most of my parts through them . They're in China and ship worldwide. Very reasonable prices too.
Hello Frank,
First of all thanks for sharing.
Can you also share from where were you able to purchase projector fans parts ?
I use a few sources but the one I use the most is Time Electronics in China. Gydz@timeprojectorlamp.com They ship DHL and use PayPal.
I think its a great ideal I have lots of projection problems it would be great for u to fix them and have a video
Get in touch if you like. Depending on the issue, that could be a good idea!
@@FixitFrank well I dont have nothing now but I have had to have 2 DMD chips changed in two benq projectors and a cleaing on a nother one they cost so much too keep up now i have a new one and it is not broken yet
Hello Mr Frank, thank you for all your videos. I am also having kind of a similar problem. Neither of my fans are running and now when I use the projector it’s get really really hot. I also noticed the fans don’t turn on n a lot of dusk have been collected inside. Would it be wise to change fans or do you think something else is the problem ?? Please help, I would greatly appreciate it as I am currently stationed in Guam and can’t send my in for repairs.
Hi! If your projector is not shutting down and giving you a temp error, it is probably working properly. The fans will cycle on and off as needed so they may not be running when you look. You definitely want to remove the dust as that will help the projector run cooler for sure but I would not worry about the fans unless you are getting a Temp error. If you do get a temp LED flashing and the projector turns off, then I would look at changing the fans. Projectors do run very hot. The exhaust air can be 140-170f / 60-77c which will feel very warm.
Frank, like your Channell.
My 3 year old Ben Q TH671ST fans have started to become much noisier tgsn when it was new. Do you think If I took the outer shell off and cleaned out some dust it would improve the situation?
I'd be more suspicious of the color wheel. Those fans should be okay for at least 5 years but I could see the color wheel going bad. if the noise stops as soon as you turn it off before the cooling cycle ends, then you know it's the color wheel.
Cleaning the fans anyway is never a bad idea just be careful you are not fixing something that isn't broken if that makes sense.
@@FixitFrank Thanks Frank appreciate the advice
Do you think I could clean the color wheel or should I just order a new one ?
Hmm somehow this makes no sense to me. When you saw the white spots for the first time they became more visible after you took the picture out of focus. Stuck DMD mirrors would be best visible when the image is in focus right. And how can the lamp fixed the issue? All the lamp does is throw light into the projector. Spots and this like that will most likely be in the optical parts of the projector. Weird...
the whole problem made no sense to me at first. The lamp was not shining bright enough. When a lamp is dim, it shows more dust bits that normally it would shine through/around and wash out. Stuck DMD will not always be in focus if the pixels slipped. I have seen plenty where the substrate that holds the mirrors lets loose and mirrors are no longer in the same focal plane. But the focusing was why I stopped thinking it was the DMD. I was going off the lamp hours in the projector without knowing they had been reset.
Hi Frank, great video, I wouldn't have attempted the strip down without it for fear of breaking the casing.
I have a identical projector in the UK its badged as a W2000, the only difference I can see is it has the capacity for a add-on wi-fi component.
Recently my lamp exploded and a small puff of smoke can out of the projector and tripped my mains electrics.
I've stripped the projector about four times and removed all the glass and dust, there was a piece of glass in the lamp fan that I'm guessing caused the machine to cut short the initial start up. I also noticed something was interfering with the the colour wheel so I dismantled it but found nothing, on reassembling it seemed free wheeling.
I've tried two new bulbs, and checked the bulb housing for continuity. The machine boots up and I can hear the fans but soon powers down without the lamp coming on, then the red lamp warning appears and the machine goes into standby. I took out the bulb assembly and can see the colour wheel spinning freely. Unfortunately I'm not in the states otherwise I'm at the point where I'd send it to you!
Do you think it could be the ballast power supply?
Do you think its worth dismantling the machine to clean the colour wheel sensor?
Hi Graham, I am curious about the puff of smoke and the tripping of your RCD. IT kind of sounds like you may have had a main power supply failure(power factor correction circuit). I would check and see if any of the capacitors (mainly the large 400V) have vented. If the lamp burst and the arc points hit together before the ballast shut down, it can cause a bit of a domino affect failure. The ballast can be damaged which then takes out the PFC section of the power supply.
I'd be leaning towards checking the mains supply first(that lowest board that plug into the ballast and mainboard). Then the ballast. The ballast wont start unless the mains supply is happy. How comfortable are you with a volt meter? Cheers from the other side of the pond!
@@FixitFrank Thanks for the prompt, insightful reply Frank.
I've stripped down the colour wheel since the machine needed dismantling anyway and it visually looks fine.
On checking the PFC, the large capacitor seems fine, but the small black one 1000uf 16v (which can be seen at 26mins) nearest to the connectors that protrude through to the upper board seemed to show a reading. I am however checking it in circuit and with my cheap multimeter, I don't feel competent enough with my cheap iron to remove it. The other two (brown 680uf25v) seem ok. None show signs of leaking or bulging.
I checked out your ballast diagnosis video and found that one of the four mosfets is shorting and beeps with a continuity test across all posts. I might have ago at removing it since I have a replacement on the way.
Do you think the black capacitor on the PFC could be problematic? I don't want to damage the new ballast.
Do you think the puff of smoke may just be the from the exploding bulb? There's no sign of scorching on any components or anywhere else inside the machine.
Again, thanks for your expert opinion.
If it was a puff of smoke rather than a cloud, then it might have just been the lamp you saw smoking. The crack noise may have been the bulb bursting. The ballast failure is pretty spot on though. I have seen that a bunch of times. I would suspect the rest of the caps are OK . It would be very obvious if they failed if the smoke came from them.
More likely the bulb burst, shorted out and wrecked the one mosfet. Then shut down the power supply. The PFC is still suspect but you can check that with the ballast removed. You should get about 380Vdc on the power input to the ballast when you start the projector. It should go high to 380 for a moment before it sees no response from the ballast and shuts back down. If you get 350-300, then the PFC circuit isnt working. The mosfet for it as well as the fuse resistors and maybe a diode could be damaged(only if you dont get the 380).
I would connect the ballast back up without the power leads connected. Meaning connect the control wire cable only. That will load down the control circuit correctly. Then carefully hold the leads on the wire that would plug into the ballast from the power supply and turn the projector on. The 380 should show about when the color wheel starts to spin. Then the wheel will stop and the 380 should drop to 300-350v. As long as you see that 380, the rest is probably OK. You just may need a pair of mosfets. I say pair because you want to replace them in pairs even if one seems OK. Or if you can find a used/working ballast. As of now, I would start with check the PFC voltage and go from there. It sounded a lot more dire at first, but it may not be as bad as it seemed.
@@FixitFrank Thanks Frank, I'll test at the weekend when I'm off work. I've ordered a new Osram ballast from China and am trying to source the correct mosfets here in the UK at least I'll have a spare one if I manage to repair it. I've just returned my second Osram lamp back to eBay, the first was from Amazon UK, both were fakes! I've had to order a third from Amazon.com from your side on the pond to hopefully guarantee its genuine!
MANY, MANY thanks for your invaluable help and advice, hopefully the PFC will be okay and when the parts eventually arrive I'll let you know how I get on.
Fantastic! I will wait to hear back. If you get real jammed, I have an email listed on the about tab.
Why didn't BenQ incorporate a dust filter?
Great question! Believe it or not, most of the time filters cause more damage. Not because they are wrong but because most people forget/neglect to deal with them. They get clogged and then the projector truly cooks itself to death. A lot of companies have gone for the "let as much air pass through as possible" approach and more times than not the dust goes right through.
Hello Frank,
I wanted to clean the projector from the inside because it has been bothering me for a while that the fans are not running during operation. After cleaning, I closed it again. Unfortunately, the device does not turn on at all now. Do you have any idea what could be the problem?
hi! Hard to say entirely without seeing it. but I suggest going back over your work slowly. Most likely you forgot a wire or its not seated well enough. The thermal fuse is easy to forget and getting hte low voltage pins lined back up with the mainboard is a common mistake. There have been times where I had to take apart and reassemble a projector 5-6 times because I forgot this or that.
Hey Frank. Great videos! I've been able to completely teardown my BenQ HT2150ST and give it the first cleaning in 4 years 😆 I think I am having fan issues and need to replace the fan 3 and\or fan 1. Which fan is which? I can't seem to find the info anywhere. Please help
Fan 1 is the exhaust fan. Fan 3 is the lamp blower fan. It's probably worth changing both. They are hard working and if they fail or act up, your lamp life will be extremely shortened.
Thank you for the kind words. I appreciate it 😊
@@FixitFrank your the best! I again used one of your videos and figured out how to get to the service menu. Sure enough it's the blower fan. But exhaust fan is getting done too. Thanks again!
@@FixitFrank Hello Mr Frank, thank you for all your videos. I am also having kind of a similar problem. Neither of my fans are running and now when I use the projector it’s get really really hot. I also noticed the fans don’t turn on n a lot of dusk have been collected inside. Would it be wise to change fans or do you think something else is the problem ?? Please point me in the right direction.
@@FixitFrank where do you get the fans from? I ordered one from aliexpress today but im not sure if its the right one. I ordered the aub0712h-c. I have a benq w2000
Thanks for this, one of the only good tear downs I could find for this particular model. Up until tonight everything was working fine aside from a hair I noticed on the screen recently. Now when I turn it on I get the fans and the lamp light flashes red and then solid red. Whole unit pauses and then powers down. According to the manual it's "Lamp1 error in normal operation". I just ordered a replacement bulb that'll arrive in a couple days so I can rule that out. Had it since September 2021 so it's under warranty but I'd rather not have to wait to get it up and running again. Do you think it's worth digging into this thing further to see what's up? Or just send it in?
Thanks again
Actually the power green light and red light are both on indicating something with the color wheel. Might be a sensor?
I'd use that warranty. As much as I would like to say "do this or that", if its this new and having issues, it would concern me that something serious might be building up to happen.
Wanna fix a pt ae 7000u with optical block problems..green mark on screen
I'd have to see a picture or video of the problem before I can say so. I'd hate to have you ship it in and then find out it needs hundreds upon hundreds of dollars worth of optical parts.
What bulbs sites do you recommend ? Any bad sites ?
www.projectorcentral.com/projector-lamp.htm Anyone on this list should be reliable aftermarket lamp assemblies.
Hi , I follow your steps but now it doesn’t turn on !
then you probably missed something during reassembly. Go back over your work and check the alignment of all connections, especially the low voltage pins from the power supply to the mainboard.
I actually had one of these (well, the 2050A) for a short time. It wasn't getting along with the HTPC I was using at the time, so I ended up sending it back and getting an Epson 2150 which I'm still using now. Kinda a shame because the color and everything was great. Really quiet too (I'm sensitive to noise). Really interesting to see inside one of these. I do remember the DMD fan didn't spin unless I put it into eco blank, but I didn't have it long enough to see the other scenarios for it to spin up.
I would have thought the lamp fail before getting dim enough to not shine past dust inside. Guess not all the time. Also, the free labor thing would be cool for a video, but you're kinda already doing that, right?
Exactly. It really depends on the issue, what sort of free time I have etc. This was recorded back in March so things have changed a little. I have a day job (obviously) otherwise I'd be more into charging a normal rate.
@@FixitFrank Ture yea
Hi Frank, love your videos! I have an Optoma GT1080HDR with a scuffed outer lense. I tried to polish it out which helped a little bit like take away the dark spots on the screen and now it looks ok but has a blur spot that's very annoying. You mentioned in the video that you could try to fix the problem so you could do a TH-cam video on it. Well if it's at all possible I'd like to send it out to ya. I'd pay all shipping and replacement parts of course. Let me know. Thanks!
Hi Jay, Thank you so much!! I'd be glad to give it a shot! Email me Frank@fixfrank.com and we can work out details.
@@FixitFrank email sent.
What are your specs in custom user EQ settings?
Pardon my ignorance but I'm not sure what you mean? If you mean on the projector, I'm not honestly sure. I repaired it for someone and they set it to their liking. I did not notice any EQ settings
@@FixitFrank I'm talking about the sound settings for custom user 1 or 2
sir i have optoma Hd 143x projector , am used to 2nd monitor on macbook pro , i have problem if laptop charger connect time projector not view display what is right solution , i have try changed hdmi cable and power supply cable not working
That is an unusual problem! I would check the laptop charger. Make sure it is proper wattage for the macbook. I have never seen this problem but if the power is too low from the charger the second display may not work properly.
If your using a hub with the macbooks that only have the one usb port, it could be that the hub can't handle both at once and you need a better one.
Mine is at 6k hours 🙌
Waiting for it to give out any time soon lolbahaha
as much as I would appreciate your free labor I want to see you get paid for your time. maybe one free labor for youtube subscribers a month otherwise you'll have lots of projectors heading your way lol ..
I have seven projectors ( five 1080p and two 4k shift ) don't ask my why . clearly I have a problem. whenever any of my PJ's needs service you'll be my first thought.
thank you for sharing your knowledge and expertise
Oh man! 7 pjs? NICE! I am at the 5th right now!
You are very welcome! I am ok with saying no sometimes. We will see how it goes. I hear you though. I have too many projectors.