Tube from a rear-projection tv - Teardown
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- เผยแพร่เมื่อ 10 ก.ย. 2024
- This is a teardown of a single tube from a rear-projection tv. This TV was taken apart in this video:
• Sony Rear Projection TV
This tube has some kind of optical fluid that appears to be water-based. I call it oil throughout the video because at the time, it looked and felt like mineral oil.
This was helpful to see. Just tore apart an old Hitachi 51S715 that had sat unplugged in my basement for 6-8 years. Because teardown was the only way to get it out of the house. Based on this post, I've chosen to stop at removing those lenses and loading up all the electrical innards hoping the local eWaste recycling will take it all. I'm hearing some places don't want to take them if the (Hitachi) glycol coolant is still in them.
Had a funny weird outcome of the liquid solution, and I don't think it was toxic at all....took it all apart just for the fun of it, outside in a field, and when I got down to cracking out the 3 sealed units, of course not to touch the liquid with gloves on...and had let each of them drain on the grass, ok...that done, and scraped everything in the trash. So after awhile doing something else, elsewhere....came back an hour or so...and low-and-behold, right in the spot where all was drained, there were at least 100 Purple Butterflies in a small circle in a feeding frenzy...so amazing, and right away got my camera, and what incredible pics I got. Then as an after thought, was thinking, "Did I just by accident, might this possibly create a mutant butterfly?"....I didn't see any fall dead, and after a day some still came back. It's something you'll just never forget!
I love the part of any video where they say "I hope that's not toxic"...genius.
The liquid used to cool and refract light in the three lenses is called "Trioxin" and was developed by the U.S. Army Corps of Engineers.....
Cool!
Fr? Why in my tv the rubber things with that liquid are swollen? Pls help
The fluid is optical grade ethylene glycol. Same as anti-freeze, except high purity and very toxic and a skin irritant.
Also, theres no xrays emitted even at full power. Theres safety circuits that prevent xrays. HOWEVER! Only the tv manufacturers were subject to strict rules. So if you have a tv that has had a cheap Chinese generic crt replacement lamp put in it, they didnt care and were not subject to those standards. So a generic lamp could produce radiation in the xray.
I know this is old but I see people get hurt all the time from taking apart things they know nothing about. So hopefully my comment will save somebody, or somebody's animal that licks up the liquid :p
🔥🥺🔥 hoy he aprendido mucho. Gracias. 😬🖖
Ethylene glicol?
The lens you took out is Cyan, not Blue...this is from an early Sony Projection set, the set used only 2 lenses...a Cyan and a Magenta - Dichroic mirrors were used splitting the Cyan into Green and Blue and the Magenta to Red and Blue....it produced a good picture, but not very bright.
Had a funny weird outcome of the liquid solution, and I don't think it was toxic at all....took it all apart just for the fun of it, outside in a field, and when I got down to cracking out the 3 sealed units, of course not to touch the liquid with gloves on...and had let each of them drain on the grass, ok...that done, and scraped everything in the trash. So after awhile doing something else, elsewhere....came back an hour or so...and low-and-behold, right in the spot where all was drained, there were at least 100 Purple Butterflies in a small circle in a feeding frenzy...so amazing, and right away got my camera, and what incredible pics I got. Then as an after thought, was thinking, "Did I just by accident, might this possibly create a mutant butterfly?"....I didn't see any fall dead, and after a day some still came back. It's something you'll just never forget!
Amazing!
the liquid is Monoethylene glycol, the color lens is plastic.
Had a funny weird outcome of the liquid solution, and I don't think it was toxic at all....took it all apart just for the fun of it, outside in a field, and when I got down to cracking out the 3 sealed units, of course not to touch the liquid with gloves on...and had let each of them drain on the grass, ok...that done, and scraped everything in the trash. So after awhile doing something else, elsewhere....came back an hour or so...and low-and-behold, right in the spot where all was drained, there were at least 100 Purple Butterflies in a small circle in a feeding frenzy...so amazing, and right away got my camera, and what incredible pics I got. Then as an after thought, was thinking, "Did I just by accident, might this possibly create a mutant butterfly?"....I didn't see any fall dead, and after a day some still came back. It's something you'll just never forget!
"Electromagnet control" a.k.a the deflection yoke. The item they were talking about on the warning sticker.
What is this fluid inside the lens?
Damn man, that was painful. Try to do some reading first next time: The three CRT tube colors are: R, G, B, and they're under a high VACUUM, not pressure. If cracked, they will violently implode spraying glass shrapnel everywhere. They also behave as giant capacitors and are capable of storing a charge of 10kv+ for WEEKS or MONTHS after being disconnected.
Just short the caps with a screwdriver and then all power is lost and then safe to work on. And vacuum is negative PRESSURE
@@jacobmartin3765 A bit pedantic aren't we, captain obvious? Any negative pressure (below atmospheric) is clearly a "pressure measurement" and the term used to describe that is a VACUUM. Positive pressures (absolute or above atmospheric) is simply labelled "pressure." Any questions?
ZAP Ouch
And... what's liquid inside?
@@imronzuhri12165 The liquid found between the face of the CRT and the lens is diluted propylene glycol. It acts as both a coolant for the CRT as well as provides optical coupling.
Very Good day Friend, I would like to know if with a lens of those and a tv ctr of 5 inches, I could make a projector diy? For for example watch movies at home on a white wall.
I have taken apart all that but much larger. That means regular TV tubes are much bigger.
I have taken out all them coils of wires. They are easy to remove.
The tube itself is fully sealed and very thick. Did I say thick? To go that far you have to really go out of your way, meaning you have to grab a sledghammer. They are just about bullet proof. They are n They were designed and they have to be totally tough and in a sealed environment.
It’s just a little bit radioactive
I'm about to take the spark gap off of mine and use for a small tesla coil
ethylene glycol and glycerin used to focus light
Similar to radiator coolant, sweet and toxic to dogs should it be ingested.
Alguien sabe que es el líquido que saca del interior del proyector?
It is methylene glycol It’s used to cool the high power tube. It’s higher power than a normal CRT TV so it needs extra cooling
Valuable info👍🏻, I need to know related with this TV, my TV is Sony projected TV same like this, usually in cold or rainy conditions my TV will not work for a long and in display it will seems like a fungal effect, after some days it will actomatically become clear, what is the solution related with this snag?
just when know where i got get those
samsung projector tv lamp
for my tv i am in Namibia please help
I have one 🤪
@@paulvigil6757 send me your email address please i need it
@@zicouzzimentile6630 pvigil78227@gmail.com
What was full of lead?
Hi, what are the precautions? besides gloves? With MG Chemicals 803 Projection Tube Coolant
I think you can find Safety DataSheet (SDS) for the liquid describing precautions.
To be honest it does not look that dangerous if you just wear gloves (look up SDS for paint, WD40 and etc. for reference)
If it's been sitting for a week or so u should be good on the capacitors....imo
"I hope that's not toxic"--- 1,4g * your weight in kg = u are dead!
I have a 2003 Sony projection TV that's the same and I and getting a off focus Blue Blur does anybody have any ideas of what this may be?.
I have a hitachi tv very blurry image I clean the glycol from the tubes with coffee filters that fix it for me
you are down a quart
Ethylene glycol 100 % hopefully he washed his hands throughly and if digested it can cause damage to the nervous system and cause kidney failure
Drinking a random fluid from an old TV is not something anyone should do.
Had a funny weird outcome of the liquid solution, and I don't think it was toxic at all....took it all apart just for the fun of it, outside in a field, and when I got down to cracking out the 3 sealed units, of course not to touch the liquid with gloves on...and had let each of them drain on the grass, ok...that done, and scraped everything in the trash. So after awhile doing something else, elsewhere....came back an hour or so...and low-and-behold, right in the spot where all was drained, there were at least 100 Purple Butterflies in a small circle in a feeding frenzy...so amazing, and right away got my camera, and what incredible pics I got. Then as an after thought, was thinking, "Did I just by accident, might this possibly create a mutant butterfly?"....I didn't see any fall dead, and after a day some still came back. It's something you'll just never forget!....I don't remember what brand TV it was, torn it down many years ago, wasn't trying to fix it either.
did you ever find out what the liquid was?
I'm not sure what it is. Someone else commented it was a mixture of glycol. The internet (www.ehow.com/about_5894189_types-cool-projection-tv-tube.html) says it is likely monoethylene glycol.
Fix Until Broken
Thanks for the reply. My own research turned up much the same thing: propylene glycol/ethylene glycol. Basically antifreeze. I'm just glad the bit that made contact with my skin isn't something that's going to rot my flesh or kill me next week.
Agent Orange
I just tore one down myself and I was wondering what that stuff was. I got it all over my hands pouring it into a plastic container and cleaning the colored lenses.
I took them apart inside the TV and in the grass and I didnt expect the liquid and I was startled
These tubes a worth 80$
Is that plasma
I'm pretty sure it was made of hair gel
Very complicated and expensive to manufacture these Tv's Big material costs. That's a pain in the but to put back together XD
Why waste time making a tutorial about something of which you know nothing about? I just again blew out & vacuumed the dust and cleaned the lenses on my 14 year old Panasonic PT- 53x54j projection tv and it's good as new again. Also do the same with my 25" GE console which still works.Hope my new flat led"s do as well. Maintenance is the key to longevity with everything. Eyesight went bad so last year sold my 1958 Ford T-Bird I rebuilt in 1983. Drove it from Wyoming to Cape Cod, Ma. 4 times w/o problems. MAINTENANCE!
Thanks for taking the time to reply. This was not a tutorial on how to fix a rear projection tube TV. This TV was found by the side of the road and is considered an ancient piece of technology from many generations ago. I read your comment a few times and really cannot tell if you are joking that you are still running one and a 25" GE Console TV.
Anyways, you can get a new LED TV that is 90% more efficient for the price of the parts to fix any older TV, so there's really no reason to try to fix it.
Omg there’s this n that?! Don’t forget to mention that it’s radio active
It only emits x-rays when electrically charged not radio active by itself. I still wouldn't not attempt to power it up unless I knew how to safely do so. X-rays would go off all over the place. Not to mention the tube itself serves as a capacitor that why it has a bleeder cable coming out of it to slowly release the charge remaining in it.
I need the red one
I have a red one
throw it away... it's junk that does not work ... you will never fix it
Is that a industry or technical TERM"GUS Lol jus kidding man great informative tutorial.
Gue sorry autocorrect
just when know where i got get those
samsung projector tv lamp
for my tv i am in Namibia please help