These were exotic stuff when i was in my electronics TV and radio repair classes in high school! One classmate eventually went to a shop that carried Sony and became quite good at repairing them. Years later when I'm living in san francisco, i met him again which was pretty cool. He was doing well fixing trinitrons and VCR's at the time, wonder what's happened to him..
You said it before: "Never try to rejuvenate a trinitron, it will get worse". Of course this one was already quite broken, so there was not much to lose.
Absolutely, Trinitrons do not respond to rejuvenation, in fact it can completely kill the CRT. Even if you had a good replacement CRT, setting it up is difficult to say the least!
I've had some luck rejuvenating those early trinitrons, it's the later ones that don't like it.. This one is worn out due to the instant on keep the heater running thing.. The 2UK, European models I did it on haven't got that fortunately, maybe it's only the mark version with the mains transformer that has it, mark 2 had the switching type supply Shango was mentioning at the beginning.
@@HughTVDX that’s not true - I’ve rejuved high end Sony monitors with great results, that last. Those tubes were on the market from 1995 thru to the end of the crt era. That said, you have to be careful and try to limit it to clean & balance on the 467.
When you were restoring the green I swore I thought I could here the cathode boiling but it occurred to me it was another airplane coming up. So typical. Thanks for your videos and commentary. I have enjoyed them for years.
The Zenith dealer which I worked for in high school also sold Sony, but mostly radios. There were five techs in the shop, and two on the road, but only one who worked on/with Sony equipment. He was the equivalent of a "Rolls Royce mechanic". If memory serves, the chroma sections were nearly bulletproof, however, the HV/horizontal oscillator sections were prone to needing work.
Great video as always and I know this is irrelevant but I remember seeing this TV in The Newsroom on the Mary Tyler Moore Show in the seventies the same Sony Trinitron model
I've got one of these sets setting in my shop on the shelf. I got it from Goodwill about 7 years ago. It was just about to be tossed out. It works. The picture is kinda tired but watchable. It really needs a home.
Well the chassis is working. Somewhere there’s a CRT that needs a home. Who knows? Or somebody who needs a chassis? This was a good video, regardless. Thank you!!
We had a Sony Trinitron TV growing up. It was very similar to the one in the original Poltergeist movie. It had a remote that operated on RF instead of IR. There is a funny scene in the movie where the neighbors kept changing the channel on each other's TV.
I have a zenith floor model on RF, if I don’t turn on the vacay switch the vacuum turns it on lmao, dogs also get weirded out when you point it at them and click the button (it’s electric, not the tuning fork one)
You're like the vice grip garage guy of TV's. I love this old vintage resurrections and diagnosing old electronics. My dad used to do this kind of stuff way back then.
I listened to this debate live a few weeks ago. Times radio had it, it was night that I couldn't sleep as it was about 02.00 in the morning when it started for me in the uk, good tv btw
I have a 1972 Hitachi solid state TV. I retired it 12 years ago when the picture tube darkened I would guess the tube was finally shot. but I still have it displayed in my living room.
shango066 i really think you should try to find a crt, just because of how hard it is to see many of these left, also i bet this set had such a beautiful crisp and colorful image compared to the regular crts of the day
Wonder how the picture would look with 8-9V on the CRT filament. Would be easy to rig up, since the filament runs on it's own little line powered transformer, and not off a flyback winding.
I've never had much luck with rejuvenating Trinitron CRT's. The few that came up looked good for a brief period. Then, they fell back down and looked worse than ever.
You have good quality diagrams to work with !!!, not what we have original diagram but looks like a copy of a copy a copy. Good job !!! Hello from Poland :D
My old unit in '81, the gun was low, but still good picture at nite in AZ.. Trinitron phosphers were pretty cool. True TV luv, thanks for the memories.
i wonder what would happen if you connected the filaments up separately to a bench power supply and slowly cranked up the voltage to see what kind of effect it will have?
It looks so clean, like he pressure washed it. The CRT has a French impressionistic quality to it, but the artist ran out of paint. If you could find a cubist CRT that would be cool.
Why not use it as a dog bed, or a cat bed so they can take naps. Or use it as a screen for a movie projector where you show 8mm, 16mm and Super 8 movies.
It may be spent but the repair was easy. These sets were pretty reliable except for the CRT. Thankfully I have one with a good CRT. I haven't turned it on in awhile but I imagine it still works. These sets outdid every other set for picture quality at that time.
As a kid I had a KV-1201, first TV I ever resurrected, but in the end I couldn't find a transistor to bring back all 3 colors so I was left with just red and blue but no green. I don't remember what happened to it, I think it got necked by accident while I was working on it, that was a sad day. It also used to do the 3 color dots when it was turned off.
Sometimes I wonder how would it be if shango went the "telewaifus" route instead of debates. Especially on those broken, carbontracking, weak crt, rat infested TV's. That would be an unique experience.
Hi from the UK. As a long retired TV engineer from the 1950's to 2002, I am fascinated by your terminology, and your approach to not repairing a TV. I didn't see you check the hight voltage (HT), or the CRT final anode voltage (EHT). Even if the CRT guns are low emission, the picture should focus. That there was no green in the mid to low lights, yet there was in the peak white, is quite confusing. Of course, the problem with Sony's Trinitron series wasn't only with the 'Beam Indexed' CRT, it was also their unique 'get around' circuitry. Here in the UK, where we used the PAL colour system, Sony used their 'get around' circuits which didn't make a lot of sense to us technically. Incidentally, here in the UK, old analogue TV's no longer work. We are completely digital now.
I enjoyed the video as I’m an old Sony TV guy with some knowledge on them internally . That’s all I’d ever buy for the house, and most of them still work perfectly today even though they are put aside for new Sony LCD sets. I had to stop watching this when Harris can on the tired old KV 1210. Can’t take her, not even in purple.
all the Trinitron TVs i've had for repair, the horizontal output transistor blew either caused the high voltage rectifier shorting, or it shorting due to the transistor blowing making it not economical to repair. most of my repairs were the good old rca xl100 ct chassis, fixed so many of them i didn't need a schematic. the xl100 chassis were used in so many rca tvs it didn't matter if it was a small one or a big floor model console tv, cold solder joints, bad chroma processor, bridge rectifier, and h-op transistor for common failures. rejuvenate the weak crt, and send it home
I got a Sony AN14 or similar antenna with the 1990s Stony stereo cabinet from the neighbor's estate sale. But there was no Sony Trinitron, he had a Toshiba 42HL117 my mom was looking at and they made her take it.
I've got a KV-1310, not a bad set. It previously had an issue where the screen would get a reddish tint that just required cleaning the potentiometers.
Interesting old TVs. Are they all the original components? I don’t know a lot about these but VERY interesting. I volunteer at a nice living museum here in England and we are having a 1940’s, 50’s and 60’s street located at the museum including an old music/TV shop where we’ll keep old vintage TVs and I’m so keen to assist in the shop. You sure know your stuff though as you’ll know, TVs like this back in the day built up THOUSANDS of volts NOT to be messed about with. Am I right mentioning the colour gun at the end of the tube is made up of red, green and blue? I noticed the blue colour parts working. Again most interesting.
Reminded me of the Sony custom SG-613 (Gate controlled Switch - special type of SCR) in the horizontal output circuit. They were AU$50 a throw and even when the set was working normally could fail after a few weeks. I eventually found a mod using a cheaper transistor but it never worked quite right. This is going back 30 years now.
Most of the junk hear in the UK you could bridge a resistor on the tube base and get a bit more heater voltage, I remember doing that on some of my mates junk rentals to give them a few more months , bare in mind he was running just about the cheapest tv rental there was , so most were happy if you got a picture at all even if it ment closing the curtains, I remember looking at a old Hitachi he put out on rental brand new in the 70's and it broke down first time in the 90's for the very first time now that was a profit , his customer insisted if at all possible he repaired it as they liked it and it's fake wood
@shango066 have a question. If you had a old TV like this one with a weak/dead CRT could a newer CRT like from the 90/2000s in it to save the older TV with a newer CRT. Would be a interesting challenge because of voltages coils etc.
Question - it's got a separate cathode HV power. How does a rejuvenator work exactly? My theory is reversing the flow of electrons to throw off junk on the cathode? I assume you don't need HV power anyway - you don't need the set on... but does it matter that it doesn't have the typical HV cathode going through the CRT board? (I would appreciate not having to change my underwear if I touched the CRT board when it was on lol)
I have tried to rejuvanate, boost or kick a few of these with the same result. Sony Tubes do not respond. Here in the UK we had mostly Mullard tubes that generally did and Mazda which were very hit and miss. You;re best bet is to drive the heaters really hard from an external supply - I mean really hard! - and them hit Rejuvanate 2. It may blow the heaters but the tube is already dead so nothing to lose. The best answer for such a rare set is a new tube..... put the set back in the Chicken Coop and see if there is a tube to be had.
Once the tube goes, how they gradually fade, the colour becomes distorted, they are probably too expensive to fix and therefore only worth using for spare parts. Very interesting.
TV channel 6 should be analog everywhere in the US and Canada. It’s a great way to get information out on two different formats, that being radio & TV. Leave channel 6 analog, channels 2-6 are junk for digital anyways.
a question because at the end of the supposed repair the screen looks blue because I have the same model of tv that my grandmother gave me and it looks excellent
I see Shango video. I drop what I am doing. I watch. Always a winner.
That's the TV from Mary Tyler Moore's newsroom!
I really enjoy your videos. I'm disabled and unable to mess with electronics anymore. These videos kind of fills that void. Thank you.
These were exotic stuff when i was in my electronics TV and radio repair classes in high school! One classmate eventually went to a shop that carried Sony and became quite good at repairing them. Years later when I'm living in san francisco, i met him again which was pretty cool. He was doing well fixing trinitrons and VCR's at the time, wonder what's happened to him..
You said it before: "Never try to rejuvenate a trinitron, it will get worse". Of course this one was already quite broken, so there was not much to lose.
Absolutely, Trinitrons do not respond to rejuvenation, in fact it can completely kill the CRT.
Even if you had a good replacement CRT, setting it up is difficult to say the least!
I've had some luck rejuvenating those early trinitrons, it's the later ones that don't like it.. This one is worn out due to the instant on keep the heater running thing.. The 2UK, European models I did it on haven't got that fortunately, maybe it's only the mark version with the mains transformer that has it, mark 2 had the switching type supply Shango was mentioning at the beginning.
@@HughTVDX that’s not true - I’ve rejuved high end Sony monitors with great results, that last. Those tubes were on the market from 1995 thru to the end of the crt era. That said, you have to be careful and try to limit it to clean & balance on the 467.
@@philexile2954 You must use the clean and balance or remove shorts function on a trinitron. Rejuvenate almost never works.
So what was going on with these Trinitron CRTs? Is there less emitting material comparing to other tubes?
I still have mine from 1970!! It is my understanding that this was the first TRINITRON!!
When you were restoring the green I swore I thought I could here the cathode boiling but it occurred to me it was another airplane coming up. So typical. Thanks for your videos and commentary. I have enjoyed them for years.
The Zenith dealer which I worked for in high school also sold Sony, but mostly radios. There were five techs in the shop, and two on the road, but only one who worked on/with Sony equipment. He was the equivalent of a "Rolls Royce mechanic". If memory serves, the chroma sections were nearly bulletproof, however, the HV/horizontal oscillator sections were prone to needing work.
Great video as always and I know this is irrelevant but I remember seeing this TV in The Newsroom on the Mary Tyler Moore Show in the seventies the same Sony Trinitron model
I've got one of these sets setting in my shop on the shelf. I got it from Goodwill about 7 years ago. It was just about to be tossed out. It works. The picture is kinda tired but watchable. It really needs a home.
Well the chassis is working. Somewhere there’s a CRT that needs a home. Who knows? Or somebody who needs a chassis?
This was a good video, regardless. Thank you!!
That Smurf debate was great!
shango066 for prez !
Don’t throw this out. Give it to a tv/radio science museum or give it to someone who wants it or something.
You never fail to make my day.
I can smell the atari fumes right through my phone
We had a Sony Trinitron TV growing up. It was very similar to the one in the original Poltergeist movie. It had a remote that operated on RF instead of IR. There is a funny scene in the movie where the neighbors kept changing the channel on each other's TV.
I have a zenith floor model on RF, if I don’t turn on the vacay switch the vacuum turns it on lmao, dogs also get weirded out when you point it at them and click the button (it’s electric, not the tuning fork one)
@@AshAndCamilleMiller the one we had didn't have a battery in the remote.
You're a real viewer when you remember when he got this labor day 2013.
and he did the rejuvenation on it, it made it worse...
You're like the vice grip garage guy of TV's. I love this old vintage resurrections and diagnosing old electronics. My dad used to do this kind of stuff way back then.
I listened to this debate live a few weeks ago. Times radio had it, it was night that I couldn't sleep as it was about 02.00 in the morning when it started for me in the uk, good tv btw
Push and Turn: child proof entertainment
I have a 1972 Hitachi solid state TV. I retired it 12 years ago when the picture tube darkened I would guess the tube was finally shot. but I still have it displayed in my living room.
Your videos are all so great thank you for making them
Alternative title: "Extinct Japanese species discovered in chicken coop."
shango066 i really think you should try to find a crt, just because of how hard it is to see many of these left, also i bet this set had such a beautiful crisp and colorful image compared to the regular crts of the day
Wonder how the picture would look with 8-9V on the CRT filament. Would be easy to rig up, since the filament runs on it's own little line powered transformer, and not off a flyback winding.
I've never had much luck with rejuvenating Trinitron CRT's. The few that came up looked good for a brief period. Then, they fell back down and looked worse than ever.
"Electron gun" Shango, were you having a senior moment?
Most of these were goners by 1980, the picture got dimmer and dimmer and dimmmm. Thanks for another greatly intelligent video.
I think showing this debate in blue is quite fitting--it fits in with the dim, washed-out theme
Those things had an excellent picture as I recall.
Ma'm, you also watch this type of videos. That's amazing indeed!
I guess I'll have to drive 2450 miles to come be your camera man.
You have good quality diagrams to work with !!!, not what we have original diagram but looks like a copy of a copy a copy. Good job !!! Hello from Poland :D
22:30 There are a few other LPTV’s still on 6. I think the FCC announced they all have to shut down in early 2021.
Awesome! Love your work man!
Along with the sony you can take those candidates to the dump with you
Lol
Amazing that someone watched it up to this point?
Probably not. The instant on feature could had burned it out in months after not being used when they realized the picture is garbage.
My old unit in '81, the gun was low, but still good picture at nite in AZ.. Trinitron phosphers were pretty cool. True TV luv, thanks for the memories.
23:14 Well, Shango, when they (the Catholic station) go, get one of those low-power 500mW TV transmitters and use that for OTA testing.
I repaired more of these than I can count. Used to work for a Sony warranty station.
That picture, was fantastic. All purple, slow death
i wonder what would happen if you connected the filaments up separately to a bench power supply and slowly cranked up the voltage to see what kind of effect it will have?
Gamer's choice, as always
Of course, it's a shango066 trademark!
@@joshm264 you have to say it the same way
@@jeffscomp 𝓖𝓪𝓶𝓮𝓻'𝓼 𝓒𝓱𝓸𝓲𝓬𝓮
Just watch InuYasha on that thing, Perfect
It looks so clean, like he pressure washed it. The CRT has a French impressionistic quality to it, but the artist ran out of paint. If you could find a cubist CRT that would be cool.
"...we had a hard short..."
Insert Shart
Well, toss the CRT, sell the rest as Operational at least. A working circuit has some value.
Why not use it as a dog bed, or a cat bed so they can take naps. Or use it as a screen for a movie projector where you show 8mm, 16mm and Super 8 movies.
Who knows? Maybe a NOS CRT hiding somewhere looking for a home.
@@Musicradio77Network or e-recycle it or give it to me.
It may be spent but the repair was easy. These sets were pretty reliable except for the CRT. Thankfully I have one with a good CRT.
I haven't turned it on in awhile but I imagine it still works. These sets outdid every other set for picture quality at that time.
He's Hardcore...
He's A Rocker!!!
The traces on the boards were also well designed. I would still clean it up and put it on the shelf with the others despite a dead crt.
Love to see the old crt tvs going again 😀
As a kid I had a KV-1201, first TV I ever resurrected, but in the end I couldn't find a transistor to bring back all 3 colors so I was left with just red and blue but no green.
I don't remember what happened to it, I think it got necked by accident while I was working on it, that was a sad day.
It also used to do the 3 color dots when it was turned off.
Love it as always great video
Sometimes I wonder how would it be if shango went the "telewaifus" route instead of debates. Especially on those broken, carbontracking, weak crt, rat infested TV's. That would be an unique experience.
I did not know that was a thing. But now that I do, I feel that my hobbies have come full circle somehow.
Hi from the UK. As a long retired TV engineer from the 1950's to 2002, I am fascinated by your terminology, and your approach to not repairing a TV. I didn't see you check the hight voltage (HT), or the CRT final anode voltage (EHT). Even if the CRT guns are low emission, the picture should focus. That there was no green in the mid to low lights, yet there was in the peak white, is quite confusing. Of course, the problem with Sony's Trinitron series wasn't only with the 'Beam Indexed' CRT, it was also their unique 'get around' circuitry. Here in the UK, where we used the PAL colour system, Sony used their 'get around' circuits which didn't make a lot of sense to us technically. Incidentally, here in the UK, old analogue TV's no longer work. We are completely digital now.
I enjoyed the video as I’m an old Sony TV guy with some knowledge on them internally . That’s all I’d ever buy for the house, and most of them still work perfectly today even though they are put aside for new Sony LCD sets. I had to stop watching this when Harris can on the tired old KV 1210. Can’t take her, not even in purple.
all the Trinitron TVs i've had for repair, the horizontal output transistor blew either caused the high voltage rectifier shorting, or it shorting due to the transistor blowing making it not economical to repair. most of my repairs were the good old rca xl100 ct chassis, fixed so many of them i didn't need a schematic. the xl100 chassis were used in so many rca tvs it didn't matter if it was a small one or a big floor model console tv, cold solder joints, bad chroma processor, bridge rectifier, and h-op transistor for common failures. rejuvenate the weak crt, and send it home
its not the content but does anyone else get uncontrollably tired watching 1 or 2 youtube videos?
Its been kicking my ass
the plane always love yours videos
:-)
This set needs a string of 40 brighteners, you know you want to
29:34 reminds me of max headroom in a way
Wonder if it could produce an OK image for a few hours with the R and G filaments running way too hot..
R.I.P CRT. They were great tv's in the day & weren't ugly styled either!
I love your triniton videos m8, and folks please stop posting spoilers!
Boa noite um clássico TOP parabéns
I got a Sony AN14 or similar antenna with the 1990s Stony stereo cabinet from the neighbor's estate sale. But there was no Sony Trinitron, he had a Toshiba 42HL117 my mom was looking at and they made her take it.
I've got a KV-1310, not a bad set. It previously had an issue where the screen would get a reddish tint that just required cleaning the potentiometers.
Interesting old TVs. Are they all the original components? I don’t know a lot about these but VERY interesting. I volunteer at a nice living museum here in England and we are having a 1940’s, 50’s and 60’s street located at the museum including an old music/TV shop where we’ll keep old vintage TVs and I’m so keen to assist in the shop. You sure know your stuff though as you’ll know, TVs like this back in the day built up THOUSANDS of volts NOT to be messed about with. Am I right mentioning the colour gun at the end of the tube is made up of red, green and blue? I noticed the blue colour parts working. Again most interesting.
First time i see this model, nice!
I had that issue with the set back in the 80s used it just for atari 2600 use. Wow, they had the color bug
That was probably Beavis and Butthead's (No Remote - so parent's) TV - everything is beautiful and the picture tube is SPENT lol
Ha, right from the factory Sony forgot to remove that metal packing cover they put on the tuner
1970 when Sony was primarily making reel to reel tape decks
There's no hope here, as long as its not my doctor telling me that
Reminded me of the Sony custom SG-613 (Gate controlled Switch - special type of SCR) in the horizontal output circuit. They were AU$50 a throw and even when the set was working normally could fail after a few weeks. I eventually found a mod using a cheaper transistor but it never worked quite right. This is going back 30 years now.
Fortunately this TV is before those horrible things appeared!
Most of the junk hear in the UK you could bridge a resistor on the tube base and get a bit more heater voltage, I remember doing that on some of my mates junk rentals to give them a few more months , bare in mind he was running just about the cheapest tv rental there was , so most were happy if you got a picture at all even if it ment closing the curtains, I remember looking at a old Hitachi he put out on rental brand new in the 70's and it broke down first time in the 90's for the very first time now that was a profit , his customer insisted if at all possible he repaired it as they liked it and it's fake wood
Hello brother I like your video Thank you
@shango066 have a question. If you had a old TV like this one with a weak/dead CRT could a newer CRT like from the 90/2000s in it to save the older TV with a newer CRT. Would be a interesting challenge because of voltages coils etc.
“It’s A Sony”
This is just like the set used in the Mary Tyler Moore show, which 1st aired in 1970.
I was hoping for an EOL
Question - it's got a separate cathode HV power. How does a rejuvenator work exactly? My theory is reversing the flow of electrons to throw off junk on the cathode? I assume you don't need HV power anyway - you don't need the set on... but does it matter that it doesn't have the typical HV cathode going through the CRT board? (I would appreciate not having to change my underwear if I touched the CRT board when it was on lol)
We used to call the colour emitter thingies "Guns" red gun blue gun and green gun or B&W tube "the gun" ;-)
don't throw it in the trash yet. Somebody might be looking for a functional chassis.
I’m sorry that it had a crummy picture, the cathode on mine nearly suffered a complete burnout towards the end of your video if you know what I mean
Which airport do you live near? Just very curious. Great Videos!
I love sony television
I have tried to rejuvanate, boost or kick a few of these with the same result. Sony Tubes do not respond. Here in the UK we had mostly Mullard tubes that generally did and Mazda which were very hit and miss. You;re best bet is to drive the heaters really hard from an external supply - I mean really hard! - and them hit Rejuvanate 2. It may blow the heaters but the tube is already dead so nothing to lose. The best answer for such a rare set is a new tube..... put the set back in the Chicken Coop and see if there is a tube to be had.
Too bad about the picture tube, would have been nice to see it fully function.
Watt doesn't make an airplane fly, the engine does. 😎
Maybe as your not allowed to say the electron g#n word you could call it an electron hose pipe?
I thought all Trinitrons were one gun CRT's? Maybe someone can correct my understanding. Thanks
They are in-line guns as far as I know
Ah that's a mix up with the early Sony color tube of the chromatrons the trinitrons work pretty similar to regular Porta color type tubes
Whoever owned it before used and enjoyed it. Maybe Sony will buy it back.
Was that Lupe from Guadalupe playing the guitar? 😄
Sony seems to be the exception for early japanese build quality
How does the tube make the 3 colours on switch off with 2 dead gunns?
What's up with the high voltage on the neck of the CRT? never seen one before?
I think that lead is for horizontal static convergence. It only seems to appear on the very early Trinitrons. To bad there are no new CRTs for these.
Once the tube goes, how they gradually fade, the colour becomes distorted, they are probably too expensive to fix and therefore only worth using for spare parts. Very interesting.
Good vid
Cool set. Liked,shared. And In memory of Steven King. " TRUMP 2020 " All my best.
TV channel 6 should be analog everywhere in the US and Canada. It’s a great way to get information out on two different formats, that being radio & TV. Leave channel 6 analog, channels 2-6 are junk for digital anyways.
The FCC is not about informing the American public but is all about cleaning up the air waves so they can auction off bandwidth.
a question because at the end of the supposed repair the screen looks blue because I have the same model of tv that my grandmother gave me and it looks excellent
The picture tube in this TV is garbage. I think you missed the diagnostic part in conclusion
@@shango066 So, summing up, this television is no longer useful, it has no remedy or that
@@krispinaelisondorivadeneir8523 correct it's a prop. The point of the video is it's a diagnostic Theory and execution video
@@shango066 I'm sorry about this TV, it's a shame because it's a gem, a fabulous TV
I think during the first season of the MTM show they used that exact same TV to show Ted Baxter's newscasts