Mark repairs a dead CRT monitor from a SEGA Out Run arcade machine.
Жүктеу.....
Пікірлер: 263
@Hagemann666 Жыл бұрын
You don't find many techs who will rewind a transformer. This man is an artist.
@780bpmclicktrack4
Жыл бұрын
I was a TV Tech for 40 years and never rewound a transformer. Im really impressed..!
@grave8digger8
Жыл бұрын
Now you have find the second ;) I do the same :)
@Durzel
Жыл бұрын
My jaw was just open while he was doing that, very impressive
@davidleeroth805
Жыл бұрын
Mark is not only a tech, he's an electronics engineer by trade.
@absurdengineering
8 ай бұрын
I wonder if it’s antique and/or Japanese. You can buy identical ones from China. They look old the day you buy them.
@biotrekker2 ай бұрын
I never thought I'd see a man on KZread winding a transformer for an Arcade CRT. Your attention to detail is outstanding. As are yout tools.
@Mcqlfc28 күн бұрын
Someone should interview Mark. I would love to know how he gained the knowledge in so many areas. The guy is a genius!!
@davidsmith-ih2kk
6 күн бұрын
And he plays the guitar.............
@zhaohaigaogu78213 күн бұрын
It is the best place in the world to revive anything. It was amazing.👍
@rogervd666gamer Жыл бұрын
Wow, I've never seen someone rewind a transformator. You have very special tools in your workshop. Great job.
@TechGorilla1987
Жыл бұрын
Have you seen the channel called Glasslinger?
@rogervd666gamer
Жыл бұрын
@@TechGorilla1987 He makes valve tubes itself. Very interesting channel. Thx.
@ernieschatz3783
3 ай бұрын
Glad to see you had no Electroboom moments around that thing.
@Ahmedfj2013
2 ай бұрын
ابنانية@@ernieschatz3783
@Ahmedfj2013
2 ай бұрын
مونيتا
@douggale596222 күн бұрын
"I don't want it to grow the charge back" - A man that understands the real world.
@anibalartemio9110Ай бұрын
This kind man never ceases to amaze. In addition to having a very well-equipped laboratory and workshop, it turns out that he is soldering the varnished copper cable and I say to myself: "Doesn't he remove the varnish? And as soon as I finish my thought, he says it! Greetings from Argentina. ps, translated text listen to Google. sorry
@markanglin173811 ай бұрын
You are brilliant, Mark! It is so rare in this day of specialists to see a true Mender at work. Everything from coil winding to fabricating replacement parts for the structure; whatever is needed to return a thing to usefulness. You are talented to the extreme, yet very pleasant to see and hear. Time spent in your workshop is pleasant indeed. I knew one other like you once (my father), so I've seen enough of this to know what you are doing and how skilled you are. He told me that when he was a boy, the only toys he ever got were the ones that other kids had broken and discarded, so he starting fixing things early. I wish I would have learned more from him. I see that same level of confidence in your work, and in the way you approach and analyze things.
@MrFixiit Жыл бұрын
Makes his own circuit boards , rewinds his own transformers my god your skills are boundless. im so glad i found this channel
@domasia014 күн бұрын
Your skills are amazing. And this old rewinding tool is a masterpiece 😊
@TechGorilla1987 Жыл бұрын
@1:11 - The first appearance of the Cliff Quick Test outside of a BigClive video. Splendid!
@Gubalicious2 жыл бұрын
The intro had me. Then it turned out to be one of the most interesting repair videos I've seen for a while. Especially the TX winding. Awesome stuff 👍
@welshminty Жыл бұрын
Fair play Mark old school technician, this is how I started my electronics life doing bench repairs, but that winding machine is pure class and still does its job perfectly
@jasonsomerville2504 Жыл бұрын
Enjoyed seeing a repair on a CRT, takes me back 30 years in my early career,,,occasionally getting a belt from 1/2 live chassis on old TVs and monitors, to my Dads delight when I worked in his TV and audio repair shop at weekends during my formative electronics studies...Good job
@Ampex196
7 ай бұрын
The odd unpleasant 'belt' or two is/was the best way to gain respect re. old CRT sets. They can deliver a very nasty 'bite'. Early sets with mains derived EHT could be lethal. It is foolish to mess with anything you don't understand. Nevertheless, we all have to start somewhere, and we have all made mistakes. It is just part of the learning process.
@dave-d Жыл бұрын
Ah, the good old, (scary!), days. That coil winder is a real beauty. I remember the second T.V. I worked on. I was looking inside at switch on and a cap blew up in my face! I hide on the other side of the workshop too now! Still lots of tube stuff to fix but the CRT anode HT was always a great teacher of respect. I think some of the last big CRT's were up around 100kV. Thanks Mark.
@mjouwbuis
Жыл бұрын
Large CRTs never went above roughly 30kV, because of the risk of generating X-rays.
@Ampex1967 ай бұрын
Discharging CRT final anodes to the dag braid is always fun. Very wise to keep it permanently shorted while working!
@MikeGervasi5 ай бұрын
Rewinding a transformer. Brilliant. That monitor was in excellent shape. No burn in, good colors, and geometry was nice and straight. Moving the convergence magnets around is a beast so lucky it didn't need it
@imammarc7 ай бұрын
I think you’d give Scotty a run for his money, Mate! That’s Star Trek level engineering!
@ricobass02532 ай бұрын
What a fabulous old hand winding machine!
@MikeGervasi5 ай бұрын
I used to repair and refurbish pinball and arcade machines. Power washing monitors was an accepted and totally fine method to remove years of dirt and dust. Of course being CRTs we had to be extra vigilant of fly back transformer voltages and not turning them up to the point where they became X-ray generators ;)
@KaleOrton Жыл бұрын
So satisfying to see old tech being brought back to life! Fantastic personality, to the point, and very informative presentation. Great editing too. Thank you so much, subscribed.
@ambrosejeremiah7869
Жыл бұрын
⁰
@LZDEN2 жыл бұрын
excellent work Mark, love the winding machine.
@kthwkr Жыл бұрын
In 1997 I had a nice 19 inch computer monitor. It cost 1k$. After being ON for an hour or so the image would start to wiggle and jump. Usually a Percussive Engineering Adjustment(PEA) would fix it for a few minutes. PEA means you slap the case but only engineers are allowed because everyone else hits it too hard and breaks it. Then an hour or two later it would do it again and another PEA was required. Finally after like 6 months I was fed up. I took it apart and removed three substantially large circuit boards. Each had hundreds of components. I put on my magnifying headset and inspected. I reflowed the solder on a few suspect places and put it back together. But it still had the same issue. Took it apart a second time and this time I reflowed the solder on every solder joint. Every one! Took a few hours. Even the big clunky ones that surely had no issue but they got some nice new solder too. Put it back together and it was an excellent monitor until it eventually got replaced with an LCD. It was still working just fine but it went into the recycle bin at work. Frankly I think the recycle company just dumps them in the city dump and charge us money for pretending to recycle.
@bklynboombox Жыл бұрын
I really admire your KNOWLEDGE of electricity!! I wish i knew a fraction of what you know! TY from NYC!❤️
@JumbleLane Жыл бұрын
Great to see someone carry out an actual repair as opposed to condemming it due to age and the inability to work just that little bit harder. Great work, loving your videos and I am watching as many as I can.
@v1970lima
5 ай бұрын
Mmmmmmmmmmm, I'm glad to know I'm not the only one addictec to this channel. (LOL)
@KetilDuna Жыл бұрын
I'm getting addicted to your repair videos - good job, and thank you for sharing.
@ianhuxstep211 Жыл бұрын
This takes me back, I used to work on amusement machines and video games, Wells Gardner and Hantarex were a common monitor to use
@bfhfhfhdjАй бұрын
Good to keep the fingers well back when discharging the CRT, if I remember correctly the charge can jump 1cm for a CRT charge of 30,000 volts. Learnt the hard way back in the day. Found a specialised discharging tool eventually, happy days.
@Apothekari2 жыл бұрын
Your good humored joy at your work is a joy to watch. Thanks !
@iandouceartist5 ай бұрын
I love these videos, amazing electrical / mechanical engineer and a suberb craftsman... really impressed with his patience and skills... there can't be many like him left with our disposable society. ⭐⭐⭐⭐⭐
@robertroe19566 ай бұрын
Never realised you can solder through the varnish. Always learning something from your excellent channel
@carlgray67645 ай бұрын
Thanks mark your channel is a great watch ... i don't dabble with stuff you do/mend .. but it's fun to watch you do it !
@MrPnew1 Жыл бұрын
I love how you actually fix and rebuilt things Mark. A real technician's technician. 27:12 vertical hold - that brings back memories of trying to get good reception on the telly in the 60's and 70's
@chrisbartram3034 Жыл бұрын
Loved the anode discharge bit- I always did it the way Mark did, with a lead. I was accused of being soft by the other blokes in the workshop who just used to cross a couple of screwdrivers to short it!
@GrandslamTim14 ай бұрын
i worked at a manufacturer that made video games in 80's that used same chassis - not the most reliable monitor ! happy memories
@3rdandlong5 ай бұрын
Congratulations Doctor. The surgery was a success. Patient feels like a new CRT now.
@briandwyer9767 Жыл бұрын
I’m so glad as a curious kid with no electrical knowledge that I never took apart an old tv. Love the way you do these videos
@madtopp2 жыл бұрын
amazing just amazing i never thought i would see a electrical repairer even attempt any thing like a re-wind well done to you every tome i see a new video of your i hope its the repair on my receiver
@MendItMark
2 жыл бұрын
Hi Tony, coincidentally, I’m filming it right now! It will be the video no 21 I reckon. Not that I number them…
@hans-joachimschroder54696 ай бұрын
Hi Mark, I look at this footage with the greatest fun an appreciation. More than your skills its the humor and positive approach that makes your videos so entertaining. Being an engineer working in the automotive industries for more than 40 Years, this direct encounter of physical and electronics related problems is far away now in my job. So this kind of electronics adventures bring me back a little bit and I remember, why I choose this profession once in a while. Thank you so much for that, take care and don´t let the high voltages "bite" you
@santociambrone2364Күн бұрын
This is very amazing fix, because you replace ........rebuilt coil for the pilot transformer.................VERY COMPLIMENT FOR YOU THANK FOR YOU VIDEO
@marksgmail665 ай бұрын
After watching many of your videos and marveling at your skill I've an added benefit. I've found a friend! Cheers, mate. Mark in CT, USA
@mikeh68768 ай бұрын
I can tell you have been at it for a long time and have studied more than just electronic circuits. Rewinding a transformer is an art.
@camhyde97017 ай бұрын
I could watch that transformer winding machine all day
@douglasRbrown6 ай бұрын
LOL, I haven't done a CRT in near 25 / 30 years! Great Video. The Transformer winding is epic!
@donlunn792 Жыл бұрын
When I was a kid,in the 50s the tv engineer used to just short capacitors with a screwdriver. Yes including the “Big” one. Being interested I asked him if there was a tool to do that,he said yes there is, but when you’ve worked on Radar during the War now that really was high voltage these are nothing.😀😀 We had a PYE fully automatic 17 inch tv set. Not sure what was automatic about it. The horizontal hold always let go when we’re watching something interesting. The TV guy never did cure it. I always hoped he had better luck on the Radar. But he was a nice guy,who put up with a kid watching what he was doing.Although I kept fairly well back!
@brianhoskins1979 Жыл бұрын
I have just discovered this channel. I used to work in the trade, back in the day. 20 years ago now. I consider myself very competent with electronics diagnosis and repair, but I have to admit I would not even have contemplated rewinding that transformer. However, watching you do it has taught me that it's possible. The winding machine is kind of important, though. I was chuckling often at the very healthy respect that was shown for the line tranformer output, and even the self recharge capability of the tube. That is the kind of respect that can only be shown by someone who has worked on these long enough to get a jump off one. And I've been there, and I am frightened of the HT cap in _exactly_ the same way. 😂 This was an excellent repair.
@georgealibinisis4816 Жыл бұрын
Jeez I now need a winding machine, too? Great job Mark! Myself and RetroLabAthens will definetely stay tuned to your channel!
@blindscribe16799 ай бұрын
When your winding your own transformer you are most certainly down a rabbit hole, fantastic repair, well done!
@s.wilson56757 ай бұрын
Well done Mark. After seeing how you dealt with that transformer, I now know you're a wind-up merchant! Hee hee.
@ossianhaufe4671 Жыл бұрын
I never thought you are able to bring this sucker back to live. You are a genius 👍
@T2D.SteveArcs2 ай бұрын
Another great video mate 😃👍, the "helping hand resistor" access the b plus regulator is common in monitors, ive seen those regulators shorted a lot of times, a dead give away before you even open her up is the set will power up at lower voltage on the variac but cuts out as you increase the input voltage and the xray protection circuit triggers...
@Rs500ybd6 ай бұрын
Blimey Hantarex . I Used To Install these monitors and repair them for British Rail. They were Everywhere . We did The RTA Clocks As Well.
@Rs500ybd
6 ай бұрын
Sorry R T A Rugby Time Antenna ..
@Rs500ybd
6 ай бұрын
We Share the same Solder Sucker Rs.
@ianbishop247 Жыл бұрын
Mark, as someone who has undertaken monitor repairs onsite, including in public spaces, I am in awe of the work you do. We used to swap out driver and scan boards and then repair the boards back in the workshop. I cannot believe now that I would take the back of a terminal, sometimes on the reception counter of University libraries - Defo less H&S rules around then! Fortunately for us we worked for the system manufacturer (Cifer) so was able to source all new parts so I have never had the joy of rewinding a transformer. I've dabled with LCD TV Repairs and retro electronics but hoping to do more once I move house and setup a better workshop. You and your setup are an inspiration sir...
@jpdevilliers2783 Жыл бұрын
I scrape the wire before soldering great videos enjoy watching from south africa
@ccronn Жыл бұрын
Top quality in every way. Well done.
@user-cb6fq2gx7c6 ай бұрын
Sei in gamba , mi piace molto il tuo laboratorio .Complimenti , io sono Giuseppe .
@antonjansenvanrensburg4145 Жыл бұрын
Way back when i use to work for LG i always took 2 long AF screwdrivers, stick one in and other one on the other going closer and close to the ground, those high voltage jumps always amused me. picked up a charged base one day and my belt buckle touched it, knocked me on my butt, 18years later and i still burn holes in my hands with high voltage stuff that i forget to discharge..
@esuohdica8 ай бұрын
Transformer winding was brilliant to see! good to see those old tools used!
@KevinHallSurfing8 ай бұрын
Worked on the VIP7800 "monitors' for Honeywell late 70's Much fun, Picture was skewed so adjusted by sticking those little grey fridge magnets around the tube. It worked. 😆
@patrickjmorgan Жыл бұрын
Skill! I did a similar but crude repair to my brothers central heating boiler. The gas valve was open and the gas supplies shops- not plumbers- wouldn’t sell me one because I wasn’t CORGI. Registered. I’m a lift technician, or was in the early 70’s. So, I took the potted core out and dismantled it substituting the coil with a varley one, rewinding it onto the original former and re-potting it. With tar. Worked a treat! This of course was pre snowflake times and my little brother was training for his P1/2 exams. He’s now a multi millionaire and lives in France in an old Mill! So, study accounting and you can retire at 50!
@andrewlittleboy8532 Жыл бұрын
I’m subscribed to lots of fixing it channels like this but I’ve never seen anyone able to repair things to such a level as you do. I’m watching in complete disbelief. Incredible…. Andrew
@grave8digger8 Жыл бұрын
I love this Old school Repairs. i have done the same on a Telefunken TV :) But without a Windingmaschine :)
@basimpsn7 ай бұрын
I hope he have kids that will carry on his legacy😊
@Retirement_Life Жыл бұрын
Love the rewinding of the transformer. Real old school skills
@joaomoreira2745 Жыл бұрын
Very good! I m from Brazil!👏👏🇧🇷
@Lhenndyn Жыл бұрын
90th… The worth génération of PCB…. Thanks for this knowledge !
@thektulu1985 Жыл бұрын
probably the most wholesome electronics fixing channel, love watching this while working from home.
@ambrosejeremiah7869 Жыл бұрын
Mark keep doing what u do as I imagine my many years in an electronics lab tweaking away. Good on u
@cjh0751 Жыл бұрын
Rolls his own transformers, a legend.
@alexdelara98588 ай бұрын
Not as much as rewinding the transformer, but undoing the thin wiring in a way that allowed you to figure out its turns count is remarkable. Great job !
@J0se_Garcia Жыл бұрын
Bravo !!!!!! il y a longtemps que je n'ai pas vu la réparation d'un moniteur a tube cathodique, et en plus la panne, le plus difficile a trouver pour un technicien une self en panne (et je sais de quoi je parle !!!), et en plus cerise sur le gâteau "Cherry on the cake", refaire une self, tout un art, tu est vraiment un as !!!!!, franchement vous les anglais vous êtes très fort, dur a dire pour un Français 😄😄😄
@johnmarchington3146 Жыл бұрын
Thanks again, Mark. That transformer rewinding was brilliant.
@Kasetpitajadul4 ай бұрын
owesome your equipment ,like osiloscope,winding cable and etc like lab electronic!
@ccronn7 ай бұрын
Your a goddamn legend, Mark...
@davidgari32402 жыл бұрын
The CRT is a giant 10 Kv capacitor, thus his craven fear. He must have been shocked (as I have) ONCE before.
@Synthematix9 ай бұрын
I recapped one of these with nichicon FW series caps, I tell you what after doing it the picture was bright as hell and pin sharp, these are excellent monitors.
@crumplezone1 Жыл бұрын
You are like all us Brummies Mark a happy chappy, bostin fix bud
@drummerhammar Жыл бұрын
That winder is awesome!!!
@PoppinWheeliez5 ай бұрын
In every other video, I am very impressed with your capabilities. You possess a deep wealth of knowledge and experience. Thank you for sharing.
@MrPitatom Жыл бұрын
Ok, wow. Mark this is NASA level repairs.
@MicheIIePucca Жыл бұрын
wow.. so cool to rebuild the primary and secondaries of that transformer. I love the winding/unwinding machine too. Actually quite easy to build a transformer with the right tools.
The man's a genius with the patience of a Saint, love it!
@fantummenelkinstruments19599 ай бұрын
Just look at that coil winder! Oh man! Great job, as always!
@9a1cool7 ай бұрын
Tom Cruise is a little baby....mission imposible---done! Fantastic job man!
@hoojchoons2258 Жыл бұрын
You hate the anode cap about as much as me! Used to hate the things, probably from when discharging one with a massive pop when I was learning!! I've got to recap my old arcade machine monitor soon, can hardly wait!
@jimbojet8728Ай бұрын
That was interesting Mark. Thank you.
@VidelicetMoi Жыл бұрын
Thoroughly educational!
@Justplast Жыл бұрын
Love the old winder
@floydlaza8751 Жыл бұрын
Thanks you're very methodical its great to watch
@ecc84 Жыл бұрын
I had to chuckle at the beginning with fingers in the ears as that's me when i'm doing defective 440v electronic drives, I turn them on from the other side of the room lol I'm also glad they don't make crt's anymore as that is what i started on doing in the service industry, i used to work with this rather interesting technician who would turn a tv on and put a screwdriver under the flyback transformer cap and see if he could pull a spark from the it to his screwdriver to check it was working he was a bit of a fruit loop to be honest lol
@wladmiros4234 Жыл бұрын
You are an excellent technicians And a Very Nice person
@SidebandSamurai Жыл бұрын
Brilliant video, never saw a technician actually take apart and rewind a transformer. that winder was really cool. Great work! I subscribed to see more.
@MikesArcadeMonitorRepair Жыл бұрын
"Don't wash your telly, people." Brilliant. Gonna steal that. I fixed one recently with the exact same issue. Stole one from a Hantarex Polo.
@PaulBakewell5 ай бұрын
Watched many of your video over the last 2 week and I must say your attention to details is absolutely legendary. I like to get suck in and repair things like you but normally give up at the first hurdle. May be because I only got access to a multimeter these days. Keep up the great work.
@FUNKINETIK Жыл бұрын
Really enjoyed every minute. Yep definitely a fondness for crt tv. The coil winding was so interesting, the machine looked Victorian in a nice way,
@leofaxika Жыл бұрын
dang, what a repair class
@joefarr3304 Жыл бұрын
Watching your videos I've realised why I'm not great at repairing equipment. There is no way I would have suspected that transformer. It's a couple of lengths of wire, what could possibly go wrong with that. I need to stop assuming things. Thanks for doing these videos, they make great watching and are very educational.
@bigfilsing Жыл бұрын
dont jet wash your monitor . Best advice ive heard all week :-)
@Leon-qc7fe Жыл бұрын
I worked on stuff like that for 40 years. The fast and simple way to start is to check the collector of the horiz output transistor for a short. If no short connect power to the monitor and check for B+ voltage at the collector of the horiz output. If ok the drive signal is likely missing. If no B+ go back to the power supply. That transformer you repaired is the horiz drive transformer .The horiz osc comes from IC 2 to the base of TR10. Another thing to be aware of when you work on monitors like that is they may require sync from a video signal to turn on the horiz osc. NO video signal connected the monitor may not come on.
Пікірлер: 263
You don't find many techs who will rewind a transformer. This man is an artist.
@780bpmclicktrack4
Жыл бұрын
I was a TV Tech for 40 years and never rewound a transformer. Im really impressed..!
@grave8digger8
Жыл бұрын
Now you have find the second ;) I do the same :)
@Durzel
Жыл бұрын
My jaw was just open while he was doing that, very impressive
@davidleeroth805
Жыл бұрын
Mark is not only a tech, he's an electronics engineer by trade.
@absurdengineering
8 ай бұрын
I wonder if it’s antique and/or Japanese. You can buy identical ones from China. They look old the day you buy them.
I never thought I'd see a man on KZread winding a transformer for an Arcade CRT. Your attention to detail is outstanding. As are yout tools.
Someone should interview Mark. I would love to know how he gained the knowledge in so many areas. The guy is a genius!!
@davidsmith-ih2kk
6 күн бұрын
And he plays the guitar.............
It is the best place in the world to revive anything. It was amazing.👍
Wow, I've never seen someone rewind a transformator. You have very special tools in your workshop. Great job.
@TechGorilla1987
Жыл бұрын
Have you seen the channel called Glasslinger?
@rogervd666gamer
Жыл бұрын
@@TechGorilla1987 He makes valve tubes itself. Very interesting channel. Thx.
@ernieschatz3783
3 ай бұрын
Glad to see you had no Electroboom moments around that thing.
@Ahmedfj2013
2 ай бұрын
ابنانية@@ernieschatz3783
@Ahmedfj2013
2 ай бұрын
مونيتا
"I don't want it to grow the charge back" - A man that understands the real world.
This kind man never ceases to amaze. In addition to having a very well-equipped laboratory and workshop, it turns out that he is soldering the varnished copper cable and I say to myself: "Doesn't he remove the varnish? And as soon as I finish my thought, he says it! Greetings from Argentina. ps, translated text listen to Google. sorry
You are brilliant, Mark! It is so rare in this day of specialists to see a true Mender at work. Everything from coil winding to fabricating replacement parts for the structure; whatever is needed to return a thing to usefulness. You are talented to the extreme, yet very pleasant to see and hear. Time spent in your workshop is pleasant indeed. I knew one other like you once (my father), so I've seen enough of this to know what you are doing and how skilled you are. He told me that when he was a boy, the only toys he ever got were the ones that other kids had broken and discarded, so he starting fixing things early. I wish I would have learned more from him. I see that same level of confidence in your work, and in the way you approach and analyze things.
Makes his own circuit boards , rewinds his own transformers my god your skills are boundless. im so glad i found this channel
Your skills are amazing. And this old rewinding tool is a masterpiece 😊
@1:11 - The first appearance of the Cliff Quick Test outside of a BigClive video. Splendid!
The intro had me. Then it turned out to be one of the most interesting repair videos I've seen for a while. Especially the TX winding. Awesome stuff 👍
Fair play Mark old school technician, this is how I started my electronics life doing bench repairs, but that winding machine is pure class and still does its job perfectly
Enjoyed seeing a repair on a CRT, takes me back 30 years in my early career,,,occasionally getting a belt from 1/2 live chassis on old TVs and monitors, to my Dads delight when I worked in his TV and audio repair shop at weekends during my formative electronics studies...Good job
@Ampex196
7 ай бұрын
The odd unpleasant 'belt' or two is/was the best way to gain respect re. old CRT sets. They can deliver a very nasty 'bite'. Early sets with mains derived EHT could be lethal. It is foolish to mess with anything you don't understand. Nevertheless, we all have to start somewhere, and we have all made mistakes. It is just part of the learning process.
Ah, the good old, (scary!), days. That coil winder is a real beauty. I remember the second T.V. I worked on. I was looking inside at switch on and a cap blew up in my face! I hide on the other side of the workshop too now! Still lots of tube stuff to fix but the CRT anode HT was always a great teacher of respect. I think some of the last big CRT's were up around 100kV. Thanks Mark.
@mjouwbuis
Жыл бұрын
Large CRTs never went above roughly 30kV, because of the risk of generating X-rays.
Discharging CRT final anodes to the dag braid is always fun. Very wise to keep it permanently shorted while working!
Rewinding a transformer. Brilliant. That monitor was in excellent shape. No burn in, good colors, and geometry was nice and straight. Moving the convergence magnets around is a beast so lucky it didn't need it
I think you’d give Scotty a run for his money, Mate! That’s Star Trek level engineering!
What a fabulous old hand winding machine!
I used to repair and refurbish pinball and arcade machines. Power washing monitors was an accepted and totally fine method to remove years of dirt and dust. Of course being CRTs we had to be extra vigilant of fly back transformer voltages and not turning them up to the point where they became X-ray generators ;)
So satisfying to see old tech being brought back to life! Fantastic personality, to the point, and very informative presentation. Great editing too. Thank you so much, subscribed.
@ambrosejeremiah7869
Жыл бұрын
⁰
excellent work Mark, love the winding machine.
In 1997 I had a nice 19 inch computer monitor. It cost 1k$. After being ON for an hour or so the image would start to wiggle and jump. Usually a Percussive Engineering Adjustment(PEA) would fix it for a few minutes. PEA means you slap the case but only engineers are allowed because everyone else hits it too hard and breaks it. Then an hour or two later it would do it again and another PEA was required. Finally after like 6 months I was fed up. I took it apart and removed three substantially large circuit boards. Each had hundreds of components. I put on my magnifying headset and inspected. I reflowed the solder on a few suspect places and put it back together. But it still had the same issue. Took it apart a second time and this time I reflowed the solder on every solder joint. Every one! Took a few hours. Even the big clunky ones that surely had no issue but they got some nice new solder too. Put it back together and it was an excellent monitor until it eventually got replaced with an LCD. It was still working just fine but it went into the recycle bin at work. Frankly I think the recycle company just dumps them in the city dump and charge us money for pretending to recycle.
I really admire your KNOWLEDGE of electricity!! I wish i knew a fraction of what you know! TY from NYC!❤️
Great to see someone carry out an actual repair as opposed to condemming it due to age and the inability to work just that little bit harder. Great work, loving your videos and I am watching as many as I can.
@v1970lima
5 ай бұрын
Mmmmmmmmmmm, I'm glad to know I'm not the only one addictec to this channel. (LOL)
I'm getting addicted to your repair videos - good job, and thank you for sharing.
This takes me back, I used to work on amusement machines and video games, Wells Gardner and Hantarex were a common monitor to use
Good to keep the fingers well back when discharging the CRT, if I remember correctly the charge can jump 1cm for a CRT charge of 30,000 volts. Learnt the hard way back in the day. Found a specialised discharging tool eventually, happy days.
Your good humored joy at your work is a joy to watch. Thanks !
I love these videos, amazing electrical / mechanical engineer and a suberb craftsman... really impressed with his patience and skills... there can't be many like him left with our disposable society. ⭐⭐⭐⭐⭐
Never realised you can solder through the varnish. Always learning something from your excellent channel
Thanks mark your channel is a great watch ... i don't dabble with stuff you do/mend .. but it's fun to watch you do it !
I love how you actually fix and rebuilt things Mark. A real technician's technician. 27:12 vertical hold - that brings back memories of trying to get good reception on the telly in the 60's and 70's
Loved the anode discharge bit- I always did it the way Mark did, with a lead. I was accused of being soft by the other blokes in the workshop who just used to cross a couple of screwdrivers to short it!
i worked at a manufacturer that made video games in 80's that used same chassis - not the most reliable monitor ! happy memories
Congratulations Doctor. The surgery was a success. Patient feels like a new CRT now.
I’m so glad as a curious kid with no electrical knowledge that I never took apart an old tv. Love the way you do these videos
amazing just amazing i never thought i would see a electrical repairer even attempt any thing like a re-wind well done to you every tome i see a new video of your i hope its the repair on my receiver
@MendItMark
2 жыл бұрын
Hi Tony, coincidentally, I’m filming it right now! It will be the video no 21 I reckon. Not that I number them…
Hi Mark, I look at this footage with the greatest fun an appreciation. More than your skills its the humor and positive approach that makes your videos so entertaining. Being an engineer working in the automotive industries for more than 40 Years, this direct encounter of physical and electronics related problems is far away now in my job. So this kind of electronics adventures bring me back a little bit and I remember, why I choose this profession once in a while. Thank you so much for that, take care and don´t let the high voltages "bite" you
This is very amazing fix, because you replace ........rebuilt coil for the pilot transformer.................VERY COMPLIMENT FOR YOU THANK FOR YOU VIDEO
After watching many of your videos and marveling at your skill I've an added benefit. I've found a friend! Cheers, mate. Mark in CT, USA
I can tell you have been at it for a long time and have studied more than just electronic circuits. Rewinding a transformer is an art.
I could watch that transformer winding machine all day
LOL, I haven't done a CRT in near 25 / 30 years! Great Video. The Transformer winding is epic!
When I was a kid,in the 50s the tv engineer used to just short capacitors with a screwdriver. Yes including the “Big” one. Being interested I asked him if there was a tool to do that,he said yes there is, but when you’ve worked on Radar during the War now that really was high voltage these are nothing.😀😀 We had a PYE fully automatic 17 inch tv set. Not sure what was automatic about it. The horizontal hold always let go when we’re watching something interesting. The TV guy never did cure it. I always hoped he had better luck on the Radar. But he was a nice guy,who put up with a kid watching what he was doing.Although I kept fairly well back!
I have just discovered this channel. I used to work in the trade, back in the day. 20 years ago now. I consider myself very competent with electronics diagnosis and repair, but I have to admit I would not even have contemplated rewinding that transformer. However, watching you do it has taught me that it's possible. The winding machine is kind of important, though. I was chuckling often at the very healthy respect that was shown for the line tranformer output, and even the self recharge capability of the tube. That is the kind of respect that can only be shown by someone who has worked on these long enough to get a jump off one. And I've been there, and I am frightened of the HT cap in _exactly_ the same way. 😂 This was an excellent repair.
Jeez I now need a winding machine, too? Great job Mark! Myself and RetroLabAthens will definetely stay tuned to your channel!
When your winding your own transformer you are most certainly down a rabbit hole, fantastic repair, well done!
Well done Mark. After seeing how you dealt with that transformer, I now know you're a wind-up merchant! Hee hee.
I never thought you are able to bring this sucker back to live. You are a genius 👍
Another great video mate 😃👍, the "helping hand resistor" access the b plus regulator is common in monitors, ive seen those regulators shorted a lot of times, a dead give away before you even open her up is the set will power up at lower voltage on the variac but cuts out as you increase the input voltage and the xray protection circuit triggers...
Blimey Hantarex . I Used To Install these monitors and repair them for British Rail. They were Everywhere . We did The RTA Clocks As Well.
@Rs500ybd
6 ай бұрын
Sorry R T A Rugby Time Antenna ..
@Rs500ybd
6 ай бұрын
We Share the same Solder Sucker Rs.
Mark, as someone who has undertaken monitor repairs onsite, including in public spaces, I am in awe of the work you do. We used to swap out driver and scan boards and then repair the boards back in the workshop. I cannot believe now that I would take the back of a terminal, sometimes on the reception counter of University libraries - Defo less H&S rules around then! Fortunately for us we worked for the system manufacturer (Cifer) so was able to source all new parts so I have never had the joy of rewinding a transformer. I've dabled with LCD TV Repairs and retro electronics but hoping to do more once I move house and setup a better workshop. You and your setup are an inspiration sir...
I scrape the wire before soldering great videos enjoy watching from south africa
Top quality in every way. Well done.
Sei in gamba , mi piace molto il tuo laboratorio .Complimenti , io sono Giuseppe .
Way back when i use to work for LG i always took 2 long AF screwdrivers, stick one in and other one on the other going closer and close to the ground, those high voltage jumps always amused me. picked up a charged base one day and my belt buckle touched it, knocked me on my butt, 18years later and i still burn holes in my hands with high voltage stuff that i forget to discharge..
Transformer winding was brilliant to see! good to see those old tools used!
Worked on the VIP7800 "monitors' for Honeywell late 70's Much fun, Picture was skewed so adjusted by sticking those little grey fridge magnets around the tube. It worked. 😆
Skill! I did a similar but crude repair to my brothers central heating boiler. The gas valve was open and the gas supplies shops- not plumbers- wouldn’t sell me one because I wasn’t CORGI. Registered. I’m a lift technician, or was in the early 70’s. So, I took the potted core out and dismantled it substituting the coil with a varley one, rewinding it onto the original former and re-potting it. With tar. Worked a treat! This of course was pre snowflake times and my little brother was training for his P1/2 exams. He’s now a multi millionaire and lives in France in an old Mill! So, study accounting and you can retire at 50!
I’m subscribed to lots of fixing it channels like this but I’ve never seen anyone able to repair things to such a level as you do. I’m watching in complete disbelief. Incredible…. Andrew
I love this Old school Repairs. i have done the same on a Telefunken TV :) But without a Windingmaschine :)
I hope he have kids that will carry on his legacy😊
Love the rewinding of the transformer. Real old school skills
Very good! I m from Brazil!👏👏🇧🇷
90th… The worth génération of PCB…. Thanks for this knowledge !
probably the most wholesome electronics fixing channel, love watching this while working from home.
Mark keep doing what u do as I imagine my many years in an electronics lab tweaking away. Good on u
Rolls his own transformers, a legend.
Not as much as rewinding the transformer, but undoing the thin wiring in a way that allowed you to figure out its turns count is remarkable. Great job !
Bravo !!!!!! il y a longtemps que je n'ai pas vu la réparation d'un moniteur a tube cathodique, et en plus la panne, le plus difficile a trouver pour un technicien une self en panne (et je sais de quoi je parle !!!), et en plus cerise sur le gâteau "Cherry on the cake", refaire une self, tout un art, tu est vraiment un as !!!!!, franchement vous les anglais vous êtes très fort, dur a dire pour un Français 😄😄😄
Thanks again, Mark. That transformer rewinding was brilliant.
owesome your equipment ,like osiloscope,winding cable and etc like lab electronic!
Your a goddamn legend, Mark...
The CRT is a giant 10 Kv capacitor, thus his craven fear. He must have been shocked (as I have) ONCE before.
I recapped one of these with nichicon FW series caps, I tell you what after doing it the picture was bright as hell and pin sharp, these are excellent monitors.
You are like all us Brummies Mark a happy chappy, bostin fix bud
That winder is awesome!!!
In every other video, I am very impressed with your capabilities. You possess a deep wealth of knowledge and experience. Thank you for sharing.
Ok, wow. Mark this is NASA level repairs.
wow.. so cool to rebuild the primary and secondaries of that transformer. I love the winding/unwinding machine too. Actually quite easy to build a transformer with the right tools.
absolutely brilliant mate......very impressive indeed....
The man's a genius with the patience of a Saint, love it!
Just look at that coil winder! Oh man! Great job, as always!
Tom Cruise is a little baby....mission imposible---done! Fantastic job man!
You hate the anode cap about as much as me! Used to hate the things, probably from when discharging one with a massive pop when I was learning!! I've got to recap my old arcade machine monitor soon, can hardly wait!
That was interesting Mark. Thank you.
Thoroughly educational!
Love the old winder
Thanks you're very methodical its great to watch
I had to chuckle at the beginning with fingers in the ears as that's me when i'm doing defective 440v electronic drives, I turn them on from the other side of the room lol I'm also glad they don't make crt's anymore as that is what i started on doing in the service industry, i used to work with this rather interesting technician who would turn a tv on and put a screwdriver under the flyback transformer cap and see if he could pull a spark from the it to his screwdriver to check it was working he was a bit of a fruit loop to be honest lol
You are an excellent technicians And a Very Nice person
Brilliant video, never saw a technician actually take apart and rewind a transformer. that winder was really cool. Great work! I subscribed to see more.
"Don't wash your telly, people." Brilliant. Gonna steal that. I fixed one recently with the exact same issue. Stole one from a Hantarex Polo.
Watched many of your video over the last 2 week and I must say your attention to details is absolutely legendary. I like to get suck in and repair things like you but normally give up at the first hurdle. May be because I only got access to a multimeter these days. Keep up the great work.
Really enjoyed every minute. Yep definitely a fondness for crt tv. The coil winding was so interesting, the machine looked Victorian in a nice way,
dang, what a repair class
Watching your videos I've realised why I'm not great at repairing equipment. There is no way I would have suspected that transformer. It's a couple of lengths of wire, what could possibly go wrong with that. I need to stop assuming things. Thanks for doing these videos, they make great watching and are very educational.
dont jet wash your monitor . Best advice ive heard all week :-)
I worked on stuff like that for 40 years. The fast and simple way to start is to check the collector of the horiz output transistor for a short. If no short connect power to the monitor and check for B+ voltage at the collector of the horiz output. If ok the drive signal is likely missing. If no B+ go back to the power supply. That transformer you repaired is the horiz drive transformer .The horiz osc comes from IC 2 to the base of TR10. Another thing to be aware of when you work on monitors like that is they may require sync from a video signal to turn on the horiz osc. NO video signal connected the monitor may not come on.