Back in my sophomore year in a technical college (1961-62) I worked part time in one of the labs. The fellow who ran the lab had figured out how the make tunnel diodes and graciously showed me and let me make a few. At the time I had no idea what to do with the ones I made and they were lost. Now I wish I’d kept some. And yes I really am that old and I’m still putzing with this stuff thanks to you and a couple of other youtubers. Thank you.
I saw your video on how to reflow a BGA using a halogen light bulb,great idea.Can you tell me what wattage bulb you used and how high above the BGA did you place the bulb? you said you heated up the BGA for 2 hours
5 ปีที่แล้ว +2
File under "make work project" LOL It is the perfect candidate for that purpose by the way ! Loved seeing you peer into that little bugger.
I like how you troubleshoot many of your projects without a schematic. It allows for more learning for the viewers with methods for troubleshooting and circuit tracing. I thought it was interesting how the tuner worked and would like to know where I could find out more about them. I have several IF sections from old VCR's that I have scrapped and wanted to see what I could do with them
I say solder with an "L" in it like you. My father came from England, and said it that way till he passed away years ago. He fixed the old vacum tube tvs. Keep up the good work! I once saw what happens when a cat runs inside a vacum tube tv console. Lots of meowing and a quick dart. The cat did survive. The console did get some damage though.
Yes its the correct way to pronounce it here in Australia and everywhere else in the world , it drives me crazy watching all the American videos and Tv shows and the way they pronounce it and many other words.
Effects of x-rays from CRTs are well overstated. Such minuscule amounts are generated. Only part way though the vid yet, but I would not like to be around that TV when it powers up and gets warm. Umm, warm cat-puke smell.
Why don't you go sleep on a CRT for a few years and then get a check up! 😂 If people knew how much poisonous radiation CRTs gave off there would be hella class action lawsuits. Instead, they have been rolled out of production and the consuming masses are none the wiser.
@@HazeAnderson Let me tell you a story about CRTs. This is not shit this is facts because the people I am going to talk about, all worked in the tv business or digital animation business and they are all dead now due to cancers that have been linked to close exposure to low level x rays from crt. Talk to anyone in the tv business and they will have more stories like this. 3 of the guys mentioned here I worked with at the community station where we did our internship. 3 stayed in broadcast I started my own production company and went into the repair business. 2 of them were cameramen, 1 was an eng shooter and the other a studio camera operator. Both died of a brain tumour. The eng operator had a tumor on the right frontal lobe and the studio operator had one form center of forehead. Right where the x-rays from the b/w viewfinder crt would have been aimed. The 3 guy worked in master control. Had a bank of monitors directly in front of him for 8 hours a day. He died of liver cancer. None of them saw their 40th birthday. Coincidence? The 4th was my neighbours son. He was an animator. Worked for Pixar studios. Was directly working in finding Nemo and toy story. One of the lead animators. Spent sometimes 18 hours a day sitting directly in front of multiple very high res computer monitors. Cancer in both his liver and pancreas. What are the chances of that? He was 36. The difference here is professional equipment is run at higher voltages so they produce more x-rays than consumer gear because they don't need to pass certifications under the cosmetics and radiation emoting devices act like consumer devices. I spent 20 years working around CRTs but my exposure at close range was limited to a few minutes because as soon as the set was fixed I put it together and pushed it to the corner to test run. When I did video production. I did have an x-ray spewing professional camera but my exposure was a few hours a week, not 8 hours a day like my friends that chose that occupation. The x-rays consumer sets produce are very low, but for a cat lying on top of the set, they are probably not good for them. My old cat used to seek out dangerous things. Her favorite places. On the satellite receiver, on this tv, and sitting on the wifi router because it was also warm. Of course that thing emits microwaves. Also not good for you.
Sorry for your losses. 😢 I think the proof is in the pudding --- those things are gone and nobody talks about them anymore. When WE all are finally gone .... those things will be talked about. After all, doctors shunned the notion of washing their hands after handling cadavers so they could get right to delivering a baby ... and that was in the 1800s.
@@12voltvids In science, to prove what you say is fact, there would have to be a massive double blind trial to rule out coincidence. If I rubbed chicken guts on your head and your headache went, would you say I cured your headache? Similarly, there is a direct correlation between colour TV purchases and road deaths. Does that mean that there isn't causative link. FWIW, I have worked with x-rays every day of my nearly 40 year career and have had large doses due to many medical procedures. By your logic, x-rays does NOT cause cancer. How can you prove that the cancer was not caused by some vapours given off by the monitor?
I would say... You can't beat skilled engineers who don't need schematics.. Why? Cos they have been doing this too long.. Great vid.. Look forwards to more. Watch and learn people!
One of the advantages of flat panel TVs, cats can't sit on top of them! I've got a very similar model of TV to this, a Mitsubishi 15 inch FST model, with scart socket, bought new, in 1993, still works perfectly, I still use it occasionally in the bedroom to watch DVDs.
At least it’s just a crow, and not a grackle; those things are even worse - get a few of those, and they’ll make enough racket to put a jet engine to shame. 😎
Good grief man, you are a true glutton for punishment. That said, I admire your tenacity, and talent, not to mention your proper pronunciation. Good show!
maybe try testing all the capacitors for a future video. i bet theres a bunch dried out and bad. A $10 cap kit should improve picture even more. With arcade monitors its common practice to replace almost all the caps after a certain amount of years and the monitor looks like new afterwards. ive also seen guys wash the circuit boards with water-soap in a sink then letting it dry and it does no damage. thx for the videos ive learned alot from u.
This was really good old school repair! Too bad that noone do repairs like this. New electronics are so cheap and boring and almost nothing to repair if even worth to repair
Don't bother about your pronunciation. I'm Spanish and I understand you perfectly, i really do. Much better than other English-speaking people. SoLder, in spanish is soLdar, strong accent at the final, quite similar, a word from the Latin "soldare" with means make solid. Congrats for your vids!
Dave, My Grandma Nellie's Old 1997 White Westinghouse CRT TV Has a Bit of flare when all the controls are up all the way on ch 4. But... On 3, THERE IS ALMOST NONE AT ALL!!!!! WEIRD!!!! She had Spectrum Cable boxes from 4/5/2018-5/16/2020 and she had it on 3 which had no flare but still does obviously when it fades in. It is now in the spare room as she got a roku onn tv when she thought the tube broke on 2/10/2020 when she just heard soind and no picture. Just a cable box glitch. Unplugged the box and it worked. It will be turning 24 in June and it STILL WORKS!!!!!
Sorry for all the comments but this video is awesome. The diodes, the display of pure skill. You do not need a schematic for anything. I'm from a town near the ferry to newfie and solllllder is correct. One country in the world thinks they're right. They're the reason we spell colour wrong as well lol
LOL @ those who complain about different pronunciations of words. I like listening to various dialects. If we all sounded identical the world would be a lot more boring.
Yeah that's an interesting one. Perhaps the mere act of observing if the cat hiding next to the tv is alive or dead from the x rays hopelessly obscures the data. However, you have proven that the tv is alive in this scenario. Very nice! I saved a TV from cat barf but only because I saw it happen, pulled the cord and cleaned the neck and pcb's.
@@NOWThatsRichy I like most cats, but they do wreck cable boxes and other things when people let them use electronics as heated beds by blocking the vents, filling them with fur+.
All electromagnetic waves traveling along a wire will radiate around the wire. Higher frequencies radiate more easily, and travel further distances. These are known as RF or Radio Frequencies.Some frequencies, typically vetween 60KHz and 30MHz can travel extremely long distances. Frequencies above 60MHz are generally considered line of sight, as they don't reflect off the ionosphere like the lower shorywave frequencies do, except under specific condition that happen every once in awhile.
You ALMOST have enough diodes there to put my collection to shame! 😆 Give it another 10-20 years or so, and we’ll see; since I pretty much don’t do salvage work anymore, you have an honest chance to catch up! Just don’t get me started about LEDs, resistors, or capacitors, though, unless you’re Mouser or Digi-Key (or the equivalent in your country of residence.) 🤓
At the beginning "this is the short version, the full version is available to patreon supporters"... 4mins in "this could be a very short video"... video length of short version = just shy of 55mins lol. Guess it was one like my PM3200-X 'scope, very far gone & likely not worth the effort BUT you couldn't pass up the challenge :D Looking forward to the next hour of my life thanks.
PS, That last diode I think is a point contact Geranium Diode, as it looks very close to the diode I used for a crystal radio I put together over half a century Err-53 to 55 years ago, Long story short I got it from a service tech who had just retired and because it was old he gave it to me along with many other old treasures that was considered junk way back then..
interesting. that poor thing been through alot and fact still made it work with 2 simple replacements is impressive. i have a working 1986 tv that someone threw out by dumpster was nothing wrong with it other than it would some times randomly change channels by it self then would go into static no signal mode after long while.. not sure what causes that some said probably just the buttons since they were weird at that time but who knows. but the set it self looks new looks like came out of the factory yesterday so was a neat find anyhow.
HAHA! Finally some love for that remote! I also have 2. Just found one on eBay for 14 bucks, brand new. You can also program two functions on each button and clear the programming by holding cancel and 0 in the learning mode.
I could not have worked on that TV! I am severely allergic to cats! Had a Mitts. come into shop, took back off, eyes started watering, nose swelled up, gave it to another tech to work on. Far from my bench!
Wow i didn't think that would live again, smashing repair dave :-D I really expected most of the parts/legs to be corroded away, any acid from the cats stomach would have been horrible. The poor cat must have been very ill :-( it's body chemistry would have been really screwed up, that often screws up brain function. I'm sure it didn't do it on purpose. Ahh tunnel diode, i had an oscilliscope (techtronics) with two in the timebase section, they must have been ok as the timebase was spot on. It did have an odd bright up fault, my mate said he would like to have the scope so he swapped it for a cossor scope that i was quite happy with. I say Solder as well, Maybe people could call it metal glue lol.
This was long before the cat got sick. This monitor has been out of service for probably 10 years. I lost that can 4 years ago. Hairballs. That is why the cat chucked. It is just this cat used to crawl up on the tv or satellite box and barfed on both of them. When the satellite box went up it shot sparks and flames out the top, singed the cats fur a d scared the crap out of my daughter whom was watching tv at the time. She would have been perhaps 14 at the time.
i don't think anyone would forget that lol, it was a cat astrophe wa wa wa, sorry bad joke :-D Could you imagine if the cat peed on the eht section...oww 20Kv or more, now that would sting a bit :)
@@zx8401ztv Don't even go there. I have 4 cats and even thou they have all been chopped one of them leaves his calling card from time to time. One of them pissed on a live power bar once and the smoke and smell drove me out of the house. Think mov going nuclear along with burning cat piss! I hope when my kids fly the coop they take their cats with them. My wife would probably have something to say about that though as she loves her cats more than the kids. (That's because they are grown up now and we remember when we were their age we had our own place). We were motivated to get a good job and buy a house. Today's generation just wants a minimal job so they can use that as an excuse as to why they have to live at home till they are in their 30s or 40s
My 2nd grandma still has a black 14 inch I believe white westinghouse crt from June 1997, and IT SURVIVED A BIG EPIC LIGHTNING STRIKE!!!!!! DID NOT DO ANY DAMAGE PERIOD:)
Possibly. But maybe the poor cat was subsceptable to cancer. A lot of animals get cancer just living outside. Interesting video, and sorry about your cats. :(
The only light of day my cats see is through a window. They don't go outside as we have predators here. Big ass eagles that will swoop down and grab a cat as a tasty snack. Recently a neighbout was walking her small dog off leash along the beach when out of nowhere a bald eagle swooped down and picked up her poodle. We have hundreds of them here. Americas bird? Tell that to the eagles that make southern BC their home.
12VOLTVIDS< what are the G1 & G2 signals used for? TV repair techs say that using a Rejuevenator is bad not good on the RGB gun which is killing the life of the RGB guns, any reasons why? I thought you use a Rejevenator when the RGB colors look dim and fade of color.
It was actually the French that dropped it because they don't have the letter L in old french vocabulary. Nor do the chinese. I worked for a Chinese guy at the first shop I worked at and he pronounced it "Sorder" A monochrome tv was a "Brack and White TV"
For the first 5 min I thought you said a cap might have thrown up inside and I thought it was going to be a quick capacitor replacement video. Then I realized you actually said cat.
What would be the result after opening it first and spotting the cat goo (before even plugging it in), then starting with: Thorough hot water spray, leaf blower and then 30 day wait for it to dry out completely, before any power was applied? (WD-40 and then a solvent rinse optional.) *GREAT JOB YOUNG MAN: 5.1v Zener and some trace repair* You know your stuff! BTW, in Illinois, it costs $25 just to throw it away at the electronics recycling facility. $35 if over 20" diagonal screen size, just because.
We pay that fee on all new electronics. Buy a new led light bulb for a buck 50, bay an extra 25 cents for recycling. Buy a tv it varies from 20 to 50 bucks. Added at the till.
A big thanks goes out to the idiot that reported this video. What are you about 10 and get your jollies wasting people's time? Of course it is acceptable for advertising but you just wasted not only my time but someone at TH-cam that had to watch it. Don't like my channel, fine go crawl back under the rock you crawled out from. And this was a viewer because I received an email telling me that my video had been demonetized due to a viewer complaint. Hi 12voltvids, Great news! After manually reviewing your video, we’ve determined that it is suitable for all advertisers: "Mitsubishi CRT TV from hell Worst damage I have ever seen can it be fixed lets find out" Thanks, The TH-cam team
“You put it in a storage unit and left it there...” Well, there’s your problem! Made that mistake before with a computer. The HD, CPU, and RAM were the only things salvageable; the rest is parts. Thermal expansion and contraction (and probably some condensation) and that one was a write-off. 😢 of course, having cat droppings/pee/vomit/hairballs/etc... isn’t going to help the set, either... 🥺
@@ItsPyrus That is correct - pure/distilled water is an insulator, not a conductor and when carefully used, does little or no harm to any electronics. Cheaper than commercially available alcohol cleaners.
@@RoughJustice2k18 although if you just use straight alcohol it not only works better but has the benefit of fast evaporation, so you don.t have to wait on it to dry, as it evaporates almost instantly
They don't give af about where they barf ehh lol I have 5 myself. Expensive critters to take care of properly. I love the little buggers though haha. We bought a new house and they have their own bathroom and a floor to ceiling condo in almost every room. We have strategically placed cordless vacuums around the house and an industrial strength one that gets used once a week while the cordless ones are used twice a day. Good place for cat towers is newegg believe it or not. 230 dollar condos go on sale half price or lower all the time. We keep spares on hand lol they're worth it though
Couldnt you write a piece of code to shift the screen around to stop the burn in? or maybe build your own circuit inside the tv and fit a button at the back to switch it on that flips the picture every 10 minutes
From an analog signal. Good luck. Plasma sets did do the pixel shift and one of my plasma sets is almost unwatchable now thanks to global tv and their stupid screens on the news. Like fox and cnn but I dont watch those channels. The pixel shift may reduce it but not eliminate it. They just make the burn in a little blurry as opposed to razor sharp.
@@12voltvids A circuit to flip the image using the crts vertical wires, basically a timer circuit, this would invert the image for 5 seconds every 30 minutes, alternatively a piece of hardware that attaches to the cctv system that does the same thing using a 555 timer. its defo possible in both cases. plasmas should be burned in for 30 hours on a pure white screen before use, then image retention will never happen.
yours is the british way of saying it. according to google it says "saa·dr" is the american pronouciation and it says "sawl-dr" is the british pronounciation. so i can see how it's different in canada where you are. so you're both correct
Why even save a TV with cat yak in it? I understand that CRTs are so much harder to find these days, but at this point, I'd just throw it out and search the curbs for another one.
Extra thumbs up, or comment in this case, for pronunciation rant ! As a fellow local Canadian schooled when our education system was still acceptable, I completely understand this. I'd better stop there or I'm going to go off on a much more *colourful* rant.
I used to write on my paperwork " repaired cold soldier joint" after 7 years the manager points it out to me, i said you never told me, he said i dont care ,you fix everything
20:33 "negative resistance"? Wouldn't that be analogous to a superconductor? Strange that this is mentioned in a video where one of the other comments relates to Shrodinger too.
47:24 -- That's the same remote as the one my grandparents had for their Mitsubishi big screen TV way back when I was little! Back then I thought that was the coolest remote I had ever seen! :D Wow, that brings back memories...
Sodder, aluminum, valve, inch, fahrenheit. Funny blokes who play 'futbowl'. English is my tertiary language, but I love it! 😆 When you try to speak English and actually speak American without realising it lol Wait... realise... realize? Let me apologize for my crappy English. Apologise, I mean.
The band is called "Niacin" which is a play on words for the lead instrument the Hammond B3. Of course the vitamin B3 is also called Niacin. John novollo, on the hammond, Billy Sheehan on the bass and Denis chambers on the drums. 3 giants in the music industry.
After seeing the damage I don’t understand why you would even attempt a fix except for fun. This seems like driving a flood damaged car. You’re just asking for more failures and repairs down the road.
@@12voltvids Good to know, I thought maybe it was bad practice because some have anti glare coating that can be more easily scratched than the glass itself. You’d know better than me though 👍🏼
Tube is probably getting a little soft. It has thousands of hours on it. I used it as a camera monitor so it was left running all the time. I have a few with serious screen burn and that is relatively hard to do.
@@austinthevhsvideogamelover5265 I have had monitors that have run 24/7 till the tubes are totally shot. The one in my shop I use to view the cameras on I put in service in 2006, and kept it in service running every day from 0700 hours to 2300 hours on a timer until 2015 when I was given an LCD. SO I put the LCD in it's place and moved the severely burned CRT to the shop where it is still turned on when I am working in the shop. I have a Sharp LCD computer monitor that as of now has 50858 running hours according to the total time display. Much of that was 24/7 operation too. I tend to turn things off more now as the price of electricity is much higher than it used to be. Used to be almost free so I used to waste much power. Now it is 2.5X more so I conserve as much as I can.
@@austinthevhsvideogamelover5265 yes for several years and it was old when I got it because I picked it out if the garbage at the shop I worked at. Customer did not want to repair.
If anyone comes across a red blinking light on a samsung TV, and tried the capacitor replace or just cant find why voltages are erratic, there is a 8 pin IC that drives the frequency of the secondary tranny. I couldnt find this 8pin IC anywhere. Save yourself time and get a new PS board for $60 Bucks. They deleted the 8pin ic on the new board.
@@austinthevhsvideogamelover5265 Flaring is a sign of a weak crt. Many newer tubes had relatively short lived due to dark face glass to increase contrast requiring running the tube hot which reduced its life.
Fortunately I am not allergic to cats. I am allergic to dogs though. Had a dog at a customer house come to greet me and licked my hand and I had to wash it right away and where it licked me got red within a few minutes. Allergic to their saliva. Probably cat too but they generally don't try to lick you.
Between the eagle screeching from January to may, and the owl that sceeches all night and now the crows screaming all day. Makes the neighbours dog that howls not so bad. Then there is the neighbours kids when they are in the hot tub directly across the fence from my office. They get the rap music blasting and every other word is f***** ni**a ect. The only type of music that when I hear it I want to go hit something.
They are banned from the garage. Just kidding. In the summer I have the door open so if they get in the garage they can get outside and they are not allowed outside. We have eagles in the trees and they have picked off a few small dogs and cats in neighbourhood. One attacked neighbours cat. Didn't kill it but took off its leg. Vet bill was 3000 to save the now 3 legged cat.
Nobody. It was an old TV I used as a monitor for my security camera. People still use CRT sets for things like retro gaming, but that is about it. It was more for the challenge to see if it could be fixed. A teaching video.
Back in my sophomore year in a technical college (1961-62) I worked part time in one of the labs. The fellow who ran the lab had figured out how the make tunnel diodes and graciously showed me and let me make a few. At the time I had no idea what to do with the ones I made and they were lost. Now I wish I’d kept some. And yes I really am that old and I’m still putzing with this stuff thanks to you and a couple of other youtubers. Thank you.
"I'm not going to spend a lot of time on this" That was a GREAT video on how to track down multiple problems! Cats rule...
cat killed the tv, the tv killed the cat.. oh my, thats a paradox.
Only if you allow the quantum state to decohere! It was Schrodinger’s cat resting on Schrodinger’s TV; both were quantum entangled. 🤣
Special case of Schrödinger's cat. Is it a dead cat in that box or a dead TV. Or something like that. Better versions are welcome.
CRT to lcd/OLED tech, would probably be better. Lol
CRT recycle. No xray hazards anymore. Why don't you get a modern outdoor lcd HD TV. Lol
That sure looks familiar. I use to open TVs that would make me gag, filled with poop and roaches.
Those Mitsubishi projection TVs had serious convergence problems right out of the box. The ICs in the registration panel failed constantly
I feel sorry for your loss. I hope that little kitty is in a warm soft place in heaven, nowhere near a CRT. ☹️
I have same TV. Still works!! Never had any problems with it. Good job on the repair. You can fix anything !!!
I have another one the same but a 28" version that still works great.
I saw your video on how to reflow a BGA using a halogen light bulb,great idea.Can you tell me what wattage bulb you used and how high above the BGA did you place the bulb? you said you heated up the BGA for 2 hours
File under "make work project" LOL It is the perfect candidate for that purpose by the way ! Loved seeing you peer into that little bugger.
I like how you troubleshoot many of your projects without a schematic. It allows for more learning for the viewers with methods for troubleshooting and circuit tracing. I thought it was interesting how the tuner worked and would like to know where I could find out more about them. I have several IF sections from old VCR's that I have scrapped and wanted to see what I could do with them
I say solder with an "L" in it like you. My father came from England, and said it that way till he passed away years ago. He fixed the old vacum tube tvs. Keep up the good work! I once saw what happens when a cat runs inside a vacum tube tv console. Lots of meowing and a quick dart. The cat did survive. The console did get some damage though.
Yes its the correct way to pronounce it here in Australia and everywhere else in the world , it drives me crazy watching all the American videos and Tv shows and the way they pronounce it and many other words.
Effects of x-rays from CRTs are well overstated. Such minuscule amounts are generated. Only part way though the vid yet, but I would not like to be around that TV when it powers up and gets warm. Umm, warm cat-puke smell.
Why don't you go sleep on a CRT for a few years and then get a check up! 😂 If people knew how much poisonous radiation CRTs gave off there would be hella class action lawsuits. Instead, they have been rolled out of production and the consuming masses are none the wiser.
@@HazeAnderson
Let me tell you a story about CRTs. This is not shit this is facts because the people I am going to talk about, all worked in the tv business or digital animation business and they are all dead now due to cancers that have been linked to close exposure to low level x rays from crt. Talk to anyone in the tv business and they will have more stories like this. 3 of the guys mentioned here I worked with at the community station where we did our internship. 3 stayed in broadcast I started my own production company and went into the repair business. 2 of them were cameramen, 1 was an eng shooter and the other a studio camera operator. Both died of a brain tumour. The eng operator had a tumor on the right frontal lobe and the studio operator had one form center of forehead. Right where the x-rays from the b/w viewfinder crt would have been aimed. The 3 guy worked in master control. Had a bank of monitors directly in front of him for 8 hours a day. He died of liver cancer. None of them saw their 40th birthday. Coincidence? The 4th was my neighbours son. He was an animator. Worked for Pixar studios. Was directly working in finding Nemo and toy story. One of the lead animators. Spent sometimes 18 hours a day sitting directly in front of multiple very high res computer monitors. Cancer in both his liver and pancreas. What are the chances of that? He was 36. The difference here is professional equipment is run at higher voltages so they produce more x-rays than consumer gear because they don't need to pass certifications under the cosmetics and radiation emoting devices act like consumer devices. I spent 20 years working around CRTs but my exposure at close range was limited to a few minutes because as soon as the set was fixed I put it together and pushed it to the corner to test run. When I did video production. I did have an x-ray spewing professional camera but my exposure was a few hours a week, not 8 hours a day like my friends that chose that occupation.
The x-rays consumer sets produce are very low, but for a cat lying on top of the set, they are probably not good for them. My old cat used to seek out dangerous things. Her favorite places. On the satellite receiver, on this tv, and sitting on the wifi router because it was also warm. Of course that thing emits microwaves. Also not good for you.
Sorry for your losses. 😢 I think the proof is in the pudding --- those things are gone and nobody talks about them anymore. When WE all are finally gone .... those things will be talked about. After all, doctors shunned the notion of washing their hands after handling cadavers so they could get right to delivering a baby ... and that was in the 1800s.
@@12voltvids In science, to prove what you say is fact, there would have to be a massive double blind trial to rule out coincidence. If I rubbed chicken guts on your head and your headache went, would you say I cured your headache? Similarly, there is a direct correlation between colour TV purchases and road deaths. Does that mean that there isn't causative link. FWIW, I have worked with x-rays every day of my nearly 40 year career and have had large doses due to many medical procedures. By your logic, x-rays does NOT cause cancer. How can you prove that the cancer was not caused by some vapours given off by the monitor?
@@HazeAnderson Do you wear an aluminium hat so "they" cannot read your mind?
Your quite correct... There is an 'L' in Solder for a reason :)
I would say... You can't beat skilled engineers who don't need schematics.. Why? Cos they have been doing this too long..
Great vid.. Look forwards to more.
Watch and learn people!
One of the advantages of flat panel TVs, cats can't sit on top of them!
I've got a very similar model of TV to this, a Mitsubishi 15 inch FST model, with scart socket, bought new, in 1993, still works perfectly, I still use it occasionally in the bedroom to watch DVDs.
At least it’s just a crow, and not a grackle; those things are even worse - get a few of those, and they’ll make enough racket to put a jet engine to shame. 😎
Good grief man, you are a true glutton for punishment. That said, I admire your tenacity, and talent, not to mention your proper pronunciation. Good show!
I was bored.
What can I say. Then it became a challenge.
maybe try testing all the capacitors for a future video. i bet theres a bunch dried out and bad. A $10 cap kit should improve picture even more. With arcade monitors its common practice to replace almost all the caps after a certain amount of years and the monitor looks like new afterwards. ive also seen guys wash the circuit boards with water-soap in a sink then letting it dry and it does no damage. thx for the videos ive learned alot from u.
when you put it back in a box it doesn't matter
That's right solder has a L in it the Queen's English just love your bids thanks to you I have now repaired two TVs
This was really good old school repair! Too bad that noone do repairs like this. New electronics are so cheap and boring and almost nothing to repair if even worth to repair
I won't spend time like this on new stuff. Too much stuff burried in LSI chips.
Don't bother about your pronunciation. I'm Spanish and I understand you perfectly, i really do. Much better than other English-speaking people. SoLder, in spanish is soLdar, strong accent at the final, quite similar, a word from the Latin "soldare" with means make solid. Congrats for your vids!
Dave, My Grandma Nellie's Old 1997 White Westinghouse CRT TV Has a Bit of flare when all the controls are up all the way on ch 4. But... On 3, THERE IS ALMOST NONE AT ALL!!!!! WEIRD!!!! She had Spectrum Cable boxes from 4/5/2018-5/16/2020 and she had it on 3 which had no flare but still does obviously when it fades in. It is now in the spare room as she got a roku onn tv when she thought the tube broke on 2/10/2020 when she just heard soind and no picture. Just a cable box glitch. Unplugged the box and it worked. It will be turning 24 in June and it STILL WORKS!!!!!
My dad had a Mitsubishi for like a decade in the 80s it was great .
Sorry for all the comments but this video is awesome. The diodes, the display of pure skill. You do not need a schematic for anything. I'm from a town near the ferry to newfie and solllllder is correct. One country in the world thinks they're right. They're the reason we spell colour wrong as well lol
LOL @ those who complain about different pronunciations of words.
I like listening to various dialects. If we all sounded identical the world would be a lot more boring.
Yeah that's an interesting one. Perhaps the mere act of observing if the cat hiding next to the tv is alive or dead from the x rays hopelessly obscures the data. However, you have proven that the tv is alive in this scenario. Very nice! I saved a TV from cat barf but only because I saw it happen, pulled the cord and cleaned the neck and pcb's.
The TV had the last laugh!
@@NOWThatsRichy I like most cats, but they do wreck cable boxes and other things when people let them use electronics as heated beds by blocking the vents, filling them with fur+.
Is there any way you could explain " Radio Frequency." You are truly remarkable. I do not miss your video.
All electromagnetic waves traveling along a wire will radiate around the wire.
Higher frequencies radiate more easily, and travel further distances.
These are known as RF or Radio Frequencies.Some frequencies, typically vetween 60KHz and 30MHz can travel extremely long distances. Frequencies above 60MHz are generally considered line of sight, as they don't reflect off the ionosphere like the lower shorywave frequencies do, except under specific condition that happen every once in awhile.
I had a little bit bigger mitsubishi tv. from that era. looks like it. but it had a bunch of RCA in and out jacks.
You ALMOST have enough diodes there to put my collection to shame! 😆 Give it another 10-20 years or so, and we’ll see; since I pretty much don’t do salvage work anymore, you have an honest chance to catch up! Just don’t get me started about LEDs, resistors, or capacitors, though, unless you’re Mouser or Digi-Key (or the equivalent in your country of residence.) 🤓
I have another bin full of LEDs and various ICS and obsklete transistors. And a big box of antique vacuum bulbs as Shango calls them.
At the beginning "this is the short version, the full version is available to patreon supporters"... 4mins in "this could be a very short video"... video length of short version = just shy of 55mins lol. Guess it was one like my PM3200-X 'scope, very far gone & likely not worth the effort BUT you couldn't pass up the challenge :D Looking forward to the next hour of my life thanks.
The patron version us closer to 2 hours.
Coming back to watch this one again, love the challenging stuff. Thanks again for sharing these repairs.
PS,
That last diode I think is a point contact Geranium Diode, as it looks very close to the diode I used for a crystal radio I put together over half a century Err-53 to 55 years ago, Long story short I got it from a service tech who had just retired and because it was old he gave it to me along with many other old treasures that was considered junk way back then..
interesting. that poor thing been through alot and fact still made it work with 2 simple replacements is impressive. i have a working 1986 tv that someone threw out by dumpster was nothing wrong with it other than it would some times randomly change channels by it self then would go into static no signal mode after long while.. not sure what causes that some said probably just the buttons since they were weird at that time but who knows. but the set it self looks new looks like came out of the factory yesterday so was a neat find anyhow.
Your powers dear, we got highest energy prices in the world
HAHA! Finally some love for that remote! I also have 2. Just found one on eBay for 14 bucks, brand new. You can also program two functions on each button and clear the programming by holding cancel and 0 in the learning mode.
One of the best remotes I have. I can even control my Lutron light dimmers with it.
I could not have worked on that TV! I am severely allergic to cats! Had a Mitts. come into shop, took back off, eyes started watering, nose swelled up, gave it to another tech to work on. Far from my bench!
Wow i didn't think that would live again, smashing repair dave :-D
I really expected most of the parts/legs to be corroded away, any acid from the cats stomach would have been horrible.
The poor cat must have been very ill :-( it's body chemistry would have been really screwed up, that often screws up brain function.
I'm sure it didn't do it on purpose.
Ahh tunnel diode, i had an oscilliscope (techtronics) with two in the timebase section, they must have been ok as the timebase was spot on.
It did have an odd bright up fault, my mate said he would like to have the scope so he swapped it for a cossor scope that i was quite happy with.
I say Solder as well, Maybe people could call it metal glue lol.
This was long before the cat got sick. This monitor has been out of service for probably 10 years. I lost that can 4 years ago.
Hairballs. That is why the cat chucked. It is just this cat used to crawl up on the tv or satellite box and barfed on both of them. When the satellite box went up it shot sparks and flames out the top, singed the cats fur a d scared the crap out of my daughter whom was watching tv at the time. She would have been perhaps 14 at the time.
i don't think anyone would forget that lol, it was a cat astrophe wa wa wa, sorry bad joke :-D
Could you imagine if the cat peed on the eht section...oww 20Kv or more, now that would sting a bit :)
@@zx8401ztv
Don't even go there. I have 4 cats and even thou they have all been chopped one of them leaves his calling card from time to time. One of them pissed on a live power bar once and the smoke and smell drove me out of the house. Think mov going nuclear along with burning cat piss! I hope when my kids fly the coop they take their cats with them. My wife would probably have something to say about that though as she loves her cats more than the kids. (That's because they are grown up now and we remember when we were their age we had our own place). We were motivated to get a good job and buy a house. Today's generation just wants a minimal job so they can use that as an excuse as to why they have to live at home till they are in their 30s or 40s
My 2nd grandma still has a black 14 inch I believe white westinghouse crt from June 1997, and IT SURVIVED A BIG EPIC LIGHTNING STRIKE!!!!!! DID NOT DO ANY DAMAGE PERIOD:)
Possibly. But maybe the poor cat was subsceptable to cancer. A lot of animals get cancer just living outside. Interesting video, and sorry about your cats. :(
The only light of day my cats see is through a window. They don't go outside as we have predators here.
Big ass eagles that will swoop down and grab a cat as a tasty snack. Recently a neighbout was walking her small dog off leash along the beach when out of nowhere a bald eagle swooped down and picked up her poodle. We have hundreds of them here. Americas bird? Tell that to the eagles that make southern BC their home.
12VOLTVIDS< what are the G1 & G2 signals used for? TV repair techs say that using a Rejuevenator is bad not good on the RGB gun which is killing the life of the RGB guns, any reasons why? I thought you use a Rejevenator when the RGB colors look dim and fade of color.
Canadians and Brits pronounce the L; Americans don't we gave that up in 1776.
Which is the correct way.
It was actually the French that dropped it because they don't have the letter L in old french vocabulary. Nor do the chinese. I worked for a Chinese guy at the first shop I worked at and he pronounced it "Sorder"
A monochrome tv was a "Brack and White TV"
@@12voltvids fim and flashbubs for my camera
@@tinicum54 Old school
You dropped the U from Colour too.
Nothin' a 3000 psi pressure washer and a hair dryer won't fix ;)
For the first 5 min I thought you said a cap might have thrown up inside and I thought it was going to be a quick capacitor replacement video. Then I realized you actually said cat.
That would make it a CAT-astrophic failure - caused by some bad CAT-acitors.
We used tunnel diodes in an airborne radar system I worked on in the Air Force.
What would be the result after opening it first and spotting the cat goo (before even plugging it in), then starting with:
Thorough hot water spray, leaf blower and then 30 day wait for it to dry out completely, before any power was applied?
(WD-40 and then a solvent rinse optional.) *GREAT JOB YOUNG MAN: 5.1v Zener and some trace repair* You know your stuff!
BTW, in Illinois, it costs $25 just to throw it away at the electronics recycling facility. $35 if over 20" diagonal screen size, just because.
We pay that fee on all new electronics. Buy a new led light bulb for a buck 50, bay an extra 25 cents for recycling. Buy a tv it varies from 20 to 50 bucks. Added at the till.
@@12voltvids ...Oh yea, just because, goobermint
Niacin! With Billy Sheehan, John Novello, and Dennis Chambers :-)
Right, your bloody well right.
A big thanks goes out to the idiot that reported this video. What are you about 10 and get your jollies wasting people's time? Of course it is acceptable for advertising but you just wasted not only my time but someone at TH-cam that had to watch it.
Don't like my channel, fine go crawl back under the rock you crawled out from. And this was a viewer because I received an email telling me that my video had been demonetized due to a viewer complaint.
Hi 12voltvids,
Great news! After manually reviewing your video, we’ve determined that it is suitable for all advertisers:
"Mitsubishi CRT TV from hell Worst damage I have ever seen can it be fixed lets find out"
Thanks,
The TH-cam team
“You put it in a storage unit and left it there...” Well, there’s your problem! Made that mistake before with a computer. The HD, CPU, and RAM were the only things salvageable; the rest is parts. Thermal expansion and contraction (and probably some condensation) and that one was a write-off. 😢 of course, having cat droppings/pee/vomit/hairballs/etc... isn’t going to help the set, either... 🥺
My storage space is heated so no moisture problems. It is a secondary work space. I keep my beta and 3/4" decks in there.
How would you go about cleaning the cat gunk off the PCB? I'd imagine after the set warmed up it would stink?
discharge all the caps and stuff then clean it with distilled water and a soft bristle brush. WATER! I know, crazy isn't it?
@@ItsPyrus
Water will do, but it has to be totally dry before plugging in. This set will never be used in the house again.
@@ItsPyrus That is correct - pure/distilled water is an insulator, not a conductor and when carefully used, does little or no harm to any electronics. Cheaper than commercially available alcohol cleaners.
@@RoughJustice2k18 although if you just use straight alcohol it not only works better but has the benefit of fast evaporation, so you don.t have to wait on it to dry, as it evaporates almost instantly
They don't give af about where they barf ehh lol I have 5 myself. Expensive critters to take care of properly. I love the little buggers though haha. We bought a new house and they have their own bathroom and a floor to ceiling condo in almost every room. We have strategically placed cordless vacuums around the house and an industrial strength one that gets used once a week while the cordless ones are used twice a day. Good place for cat towers is newegg believe it or not. 230 dollar condos go on sale half price or lower all the time. We keep spares on hand lol they're worth it though
Couldnt you write a piece of code to shift the screen around to stop the burn in? or maybe build your own circuit inside the tv and fit a button at the back to switch it on that flips the picture every 10 minutes
From an analog signal. Good luck. Plasma sets did do the pixel shift and one of my plasma sets is almost unwatchable now thanks to global tv and their stupid screens on the news. Like fox and cnn but I dont watch those channels. The pixel shift may reduce it but not eliminate it. They just make the burn in a little blurry as opposed to razor sharp.
@@12voltvids A circuit to flip the image using the crts vertical wires, basically a timer circuit, this would invert the image for 5 seconds every 30 minutes, alternatively a piece of hardware that attaches to the cctv system that does the same thing using a 555 timer. its defo possible in both cases. plasmas should be burned in for 30 hours on a pure white screen before use, then image retention will never happen.
yours is the british way of saying it. according to google it says "saa·dr" is the american pronouciation and it says "sawl-dr" is the british pronounciation. so i can see how it's different in canada where you are. so you're both correct
Cat yak and gadgets,dont mix!
Looks like the picture has some pretty bad blooming and geometry, any fix for that?
Looks like i was not the only one who was playing with crt's back in 2019 and adjusting the pictures quality on it as well.
CRT sets can be fun to play with. For me it is mostly audio these days. I have little interest in televisions especially flat panel sets.
Why even save a TV with cat yak in it? I understand that CRTs are so much harder to find these days, but at this point, I'd just throw it out and search the curbs for another one.
Why not fix it.
That crows is really irritating than bald eagles out there, and need to be quiet while focusing the TV repair.
Extra thumbs up, or comment in this case, for pronunciation rant ! As a fellow local Canadian schooled when our education system was still acceptable, I completely understand this.
I'd better stop there or I'm going to go off on a much more *colourful* rant.
Don't even get me started on that one. A total fail in my books these days.
This must smell wonderful lmao.
I noticed your watch is missing. Is this for safety or a time consideration
I remove it when working around high voltage. Tv and microwave ovens generally.
If that really came from your cat.. that's some acrid acids ... lol
I don't think he said "HIS" cat did it unless I missed that part.
I used to write on my paperwork " repaired cold soldier joint" after 7 years the manager points it out to me, i said you never told me, he said i dont care ,you fix everything
I looked for the video on Patreon and could not find it.
For some reason, I kept imagining it having an unfortunate collision w/ a brick! :D
Wrong channel. That is photonicinduction
Hmm, I'd think that he'd put (at *minimum*!) 230v through it!
@@12voltvids Or shango066 ... he has been known to EOL modern plastic TV's.
@@Madness832 Shango066 is also known for EOL'ing plastic TV's but he'd go for something more "exotic" such as fireworks inside it.
20:33 "negative resistance"? Wouldn't that be analogous to a superconductor? Strange that this is mentioned in a video where one of the other comments relates to Shrodinger too.
Oh that's naaaaaaaaaasty. I'd be washing that board in isopropyl alcohol before trying to fix it, cat barf is acidic and corrosive.
Hey, 12volt, were GE CRT TVs made after 1985 decent?
GE were RCA sets and were identical.
Thats when we would show the customer the damage and say no repair
*** ADDENDUM***
Cat Probably Puked due to radiation poisoning.. :|
Problem?
Conductive cat yak still on the board . . .
SoLdering on that board gave you a fresh whiff of the vomit . . . nice . . .
47:24 -- That's the same remote as the one my grandparents had for their Mitsubishi big screen TV way back when I was little! Back then I thought that was the coolest remote I had ever seen! :D
Wow, that brings back memories...
That's what I had a 50" big screen.
How are you getting Analog TV stations as they switched to digital?
Closed circuit
Sodder, aluminum, valve, inch, fahrenheit.
Funny blokes who play 'futbowl'.
English is my tertiary language, but I love it! 😆
When you try to speak English and actually speak American without realising it lol
Wait... realise... realize?
Let me apologize for my crappy English.
Apologise, I mean.
In cape Breton you're not allowed to shoot shyt hawks (crows) within town limits lol
Was that Edgar Winter Group at 49:28 ? Ah, Just saw that it was Niacin. My bad!
The band is called "Niacin" which is a play on words for the lead instrument the Hammond B3. Of course the vitamin B3 is also called Niacin.
John novollo, on the hammond, Billy Sheehan on the bass and Denis chambers on the drums. 3 giants in the music industry.
TV must of STUNK when this happend
Most people train their cats to not get up on stuff.
Does one deGauss a louse in a house?
You obviously don't know much about "cats" :P
Train a cat? No I think you got that one backwards. The cat trains you!
You still have analog broadcasting there!?
Nope, only at my place as i generate analog signals in house with a bank of modulators.
That tv would make for a good candidate for doing a rgb mod on it.
Yes it would because the low voltage side isolated by the flyback.
@@12voltvids Will you ever do an rgb mod video on one of them ? Would make for a good video, even more with all your knowledge ^^
@@chainedenintenloup
Well first I will need something that puts out an RGB signal. All the current stuff I use is DVI and HDMI.
@@12voltvids If you have a computer that has a vga video card that can output at 15khz, it should work, but yeah I see.
After seeing the damage I don’t understand why you would even attempt a fix except for fun. This seems like driving a flood damaged car. You’re just asking for more failures and repairs down the road.
There you go. Future repair videos.
You are pronouncing solder correctly. Why anyone would not pronounce the "l" is a mystery to me.
Can setting the tv on the face of the tube like at 3:12 damage it? I see you do that a lot
If I had diamond dust on the bench and dragged it across sure. Glass is pretty tough. This tv went in the bin when the video was done FYI.
@@12voltvids Good to know, I thought maybe it was bad practice because some have anti glare coating that can be more easily scratched than the glass itself. You’d know better than me though 👍🏼
I think that tv has the most flare I have ever seen despite the picture low.
Tube is probably getting a little soft. It has thousands of hours on it. I used it as a camera monitor so it was left running all the time. I have a few with serious screen burn and that is relatively hard to do.
@@12voltvids did you leave it on for an ENTIRE 168 HOURS/7 DAYS?!?!?!
@@austinthevhsvideogamelover5265
I have had monitors that have run 24/7 till the tubes are totally shot. The one in my shop I use to view the cameras on I put in service in 2006, and kept it in service running every day from 0700 hours to 2300 hours on a timer until 2015 when I was given an LCD. SO I put the LCD in it's place and moved the severely burned CRT to the shop where it is still turned on when I am working in the shop. I have a Sharp LCD computer monitor that as of now has 50858 running hours according to the total time display. Much of that was 24/7 operation too. I tend to turn things off more now as the price of electricity is much higher than it used to be. Used to be almost free so I used to waste much power. Now it is 2.5X more so I conserve as much as I can.
@@12voltvids So did the Mitsubishi get left on all day/night?
@@austinthevhsvideogamelover5265 yes for several years and it was old when I got it because I picked it out if the garbage at the shop I worked at. Customer did not want to repair.
Well done great work
Your videos have helped me so much. I love the electronics tinkering, more for how it works and if I can get it working again, 73s ve6rfl
If anyone comes across a red blinking light on a samsung TV, and tried the capacitor replace or just cant find why voltages are erratic, there is a 8 pin IC that drives the frequency of the secondary tranny. I couldnt find this 8pin IC anywhere. Save yourself time and get a new PS board for $60 Bucks. They deleted the 8pin ic on the new board.
So leaving the tv on for a extremely long time can give it more flare?
Well as the tube gets tired yes they will start to bloom or flare.
@@12voltvids well some newer tvs flare at the color, contrast, brightness, red or greenest tint all the way up.
@@austinthevhsvideogamelover5265
Flaring is a sign of a weak crt. Many newer tubes had relatively short lived due to dark face glass to increase contrast requiring running the tube hot which reduced its life.
@@12voltvids Well my panasonic tv vcr combo from 8/2002, Only does it for 5 seconds when I turn it on.
@@austinthevhsvideogamelover5265
Right as the tube cathode warms up and emission goes up.
Well done on the solder, i just cant stand soddering!
Soddering, the process of putting down sod, or turf
Three diamonds.
Cats and electronics don't mix well. Not only because of vomit but also the hair and dander. I have bad allergies to cat dander.
Fortunately I am not allergic to cats. I am allergic to dogs though. Had a dog at a customer house come to greet me and licked my hand and I had to wash it right away and where it licked me got red within a few minutes. Allergic to their saliva. Probably cat too but they generally don't try to lick you.
Did you really say "cat-a strophic failure"!
Good pun eh
me too.. its called solder.. not sarder.. but i am british. from leicestershire uk
Solder is the Canucks way of saying it. Which is wrong.
Bzzt wrong. Americans say it wrong.
Shut up crows dammit lols
Use ring tester if flyback is good
22:30, maybe a germanium diode?
That crow is bloody annoying
Between the eagle screeching from January to may, and the owl that sceeches all night and now the crows screaming all day. Makes the neighbours dog that howls not so bad. Then there is the neighbours kids when they are in the hot tub directly across the fence from my office. They get the rap music blasting and every other word is f***** ni**a ect. The only type of music that when I hear it I want to go hit something.
@@12voltvids Just load up some Drake and annoy them back.
@@RoughJustice2k18
That would annoy me even more. Perhaps some metallica will do..
@@12voltvids yes - much better. A lot of people don't like Drake for some reason.
The wrong zener diode.
Talking about cats i have not seen then for a long while
They are banned from the garage. Just kidding. In the summer I have the door open so if they get in the garage they can get outside and they are not allowed outside. We have eagles in the trees and they have picked off a few small dogs and cats in neighbourhood. One attacked neighbours cat. Didn't kill it but took off its leg. Vet bill was 3000 to save the now 3 legged cat.
Lookup the schematic for the Mitsubishi 14" tv on Google.com
I am sure it is available but wasn't needed this time. Perhaps for a theory video
Silly cat
this tv very old fashion who is the man that wants to repair this ??????
Nobody. It was an old TV I used as a monitor for my security camera. People still use CRT sets for things like retro gaming, but that is about it. It was more for the challenge to see if it could be fixed.
A teaching video.