NEC made some fine monitors. I have had several, including CRT Projectors and LCD computer monitors. NEC never disappointed. I'd say only a Sony broadcast monitor looks better.
If it wasn't for people like you, knowledge of all the old equipment you repair and resurrect would quickly fade into history. Yes, the young ones would still know the TVs were big clunky boxes, but there'd have no idea of what followed on inside. Well done, thanks!
These "lower-res" color computer monitors from the early 80s have amazing picture and the tubes last forever. The Commodore 1702 was very similar to this one and they just generate a great image, although as you mentioned they aren't super duper sharp.
I recapped and replaced a voltage regulator in a 1702 and my god that monitor came alive. While it was limping along before the repair it looked new after the repair.
1702 even has Y/C input on the back, a cheap cable will let you connect anything with s-video. I believe that monitor was made by JVC, and used the same CRT and boards as their professional series.
@@coyote_denThat's right, it is a JVC product. All the commodore screens are pretty good but the 1701 best. The later ones like the 1080 and 1084 were nice because they could take Y\C plus both digital and analog RGB which makes them a jack of all trades but the tubes didn't last as long and the overall design wasn't as robust.
CRT technology had reached the absolute pinnacle of performance, the color and sharpness is hard to beat. Great little monitor, NEC stuff always delivered the goods.
Manufacturers knew that, and they were not making as much money as before. That's when they foisted flat screens on us, and championed for changing the entire TV broadcasting system, to get people to buy TVs again.
Shango066 thank you for all the great videos..i eager for saturday waiting for any video you post..you are a real life master tech.your down to earth diagnosis and repair and your sarcasam is so funny..
That is a helluva good colour low-res monitor. The last time I saw such dense, clean, "splattering" colours it was on a small yellow 9' Sony from the beginning of the 80's.
I had an 22" NEC 'Diamondtron' (albeit Mitsubishi tube, I believe) in the mid 2000's for photography work, I calibrated it with a colorimeter and to this day one of the best images I've seen on a display.
A great learning lesson taught here. Inspect your boards first. How Shango missed it is because he assumed a component may have been at fault first. I guess many of us have done the very same thing! Vintage NEC monitors were the best.
This was likely delivered busted and put on a shelf for 40 years until it was bought by someone on eBay thinking NOS would be guaranteed brand new, and turns out the board was cracked. Right on a corner edge where the feet of the TV are too, prime for dropping.
I agree. I got one of those commodore monitors and with the snes and other games. It’s an amazing picture. With the sharpness and richness (not resolution) of the colours I’d say it’s still better then any common flatscreen you can buy today
Waiting each Saturday night for shangos next episode reminds me of waiting for my favourite TV programme every Saturday night as a kid. Please keep them coming, learning so much and I love the no bullshit approach 👍
I used to spec these nec monitors in the remote eng studio truck designs because of the clarity and brightness as well as the weight difference sony was much heavier steel box.
It's truly hard to believe that NEC of that era can produce such a high quality picture, circuitry and components. They must have given all the table scraps to Curtis Mathes to install in their garbage.
A monitor is calibrated "flat" at the factory, because it's typically used for work on a desktop PC or video production environment. A television is adjusted to anything BUT flat - it's factory adjusted to out-shine its competitors product on a display wall in a store. And sadly, most consumers don't bother to take the set out of such mode. That's why so many flat screen TVs also last far shorter than a CRT from decades ago.
Not that Im anywhere close to Shango's level come TV's & monitors but I've come across a few sets like this that were loaned out or put away in storage and came back to their owners not working. And just like this they suffered from being dropped & broken boards. For me (like Shango) I go for the easy quick fix first, but on these printed board sets I'm looking for discoloration and breaks first & foremost, fuses then to the components. And if the tv god's are smiling on ya.....they're a quick fix and you're a hero.😅
I sadly broke the nub off the back of the tube in a Mac SE a couple weeks ago while trying to remove the drive cage. But if I had to pick a tube to accidentally vent, that'd be the one -- they're still reasonably plentiful.
@@VectraQS it’s unfortunately very common to do. I run Amiga of Rochester, we do vintage Mac restoration and so many people have done this I lost count
@@thomasandrews9355 Ahh, nice to run into you again. I think we've talked a few times before. I still need to get in touch about sending a Portable logic board your way.
I still have one of those, along with some Sony CRT medical monitors that I just can't bring myself to chuck out, they can just keep living rent free in my storage shed. The image quality is very pleasing to watch, in a visual sense they are a bit like vinyl records sounding better to listen to.
These were common in video online edit room as a secondary color monitor. The primary would be a sony or ikegami usually but these were great for things like the chyron station. It was probably set to display the full roster on purpose to qc the image.
I have a similar monitor bought in the 80's for computer stuff at that that time. I put that thing on an elevated shelf in my shop with a tuner box in 93. I use that thing everyday and I think its going to outlast me. Everyday I switch it on thinking I'll graduate to a new flat screen and nope she comes right up and has a fairly decent picture. Never had to service it once yet.
23:01 At this point I need to bring up something regarding monitors vs ordinary TVs - be they CRTs, or flat screens, or something else. The difference between a monitor and a television runs deeper than one having a tuner and the other not having one. Most monitors(for desktop use, exhibition display, or whatever purpose) are adjusted accurate at the factory. Consumer TVs? Anyone's guess! As Dan discovered, watching TV on a monitor, even an older one like the subject of this video, via digital converter box or other such tuner, is a whole nother ballgame. He's seeing what's there, because a good monitor is transparent, and neither adds nor subtracts anything to the native image. I encourage others out there to experiment like this, and see what TV can really look like, without the factory torch/store mode settings. I can get close to this on a modern OLED or QLED flat, simply by choosing the least intrusive picture mode, such as Cinema or Movie. Or I could select custom, and make the TV more like a monitor by turning off all the so-called enhancers in the Advanced Picture menus, and properly setting the basic stuff(Contrast, Brightness, Color, sharpness, etc.).
Greetings, Mr. Shango, I’ve been enjoying your videos, I have been working with electronics since I was a small kid in Pasadena Texas. I will visit with you again soon I will be watching for your next video. Talk to you soon.😊
That's an *extremely* bright picture! The voltage regulator IC might be on its way out. As they age, their output voltage tends to drift up and could potentially FUBAR the flyback. I'll bet it would play a good game of PAC-MAN, though!
More colour monitors please, i love these things, try and get hold of an EIZO branded one, you will be blown away at the quality of the picture i recommend the EIZO FLEXSCAN F55 that was the rolls royce of screens. theres even sevice data for them around.
That looks like an Ebay shipping crack. Even if it wasn't shipped or on on ebay. I fixed a pro JVC vtr with bad crush damage like that on it's card cage back-plane. No stop hole needed, the crack was nice and long, terminated at a hole at both ends, severed like 22 small traces. Also had a cracked power supply board but amazingly that's all that was wrong with it.
The Hercules green monochrome version of this monitor I believe was used in the library scene of the movie WarGames; where David is looking up information about Dr. Falken.
Appropriate that you're showcasing the monitor's color-producing abilities on the Rose Bowl Parade...on the 70th Anniversary of the the first color broadcast from the RCA system: the one the won the standards race.
Haven't really seen the video but first things in my mine with the description of the fault was, look for a BUZ90 and or BD149 I believe it was that often either de-solder them self's or let out magic smoke. repaired many a monitor from that time and that was the most common fault.
That picture looks great that CRT must not have many hours on it back in the 1980s and 90s I repaired a lot NEC products They even made Sets for JCPennny's too .
i came across a NEC 20 inch TV in the 1990s, had a dud line output transformer, i tried pretty much all main spares suppliers(i'm in the UK) and none could get any parts for ANY NEC stuff, was told no spares were available here, ...so ...why did they sell the TV here in the UK (was definitely a model designed for the UK)
Nice to see(?)/hear you again Shango. Maybe an idea for next movie - comparing a TV from the 2000s to a CRT computer monitor from the end of production, with 85Hz refresh rate. It seems similar, but? And by the way - this camera has bad auto-gain of sound...it waves a lot...
This looks like a monitor intended for the Apple ][ as it has more or less the matching styling. Any home computer from the late 70s or early 80s used composite for video.
It was probably a color security monitor. But that said... it would be usable for computers. It would be far more useful if it offered separated chroma and luma. That offers the best picture. This would be outstanding for a console though. Perhaps an NES or super nintendo.
NEC made the best products ever. I had an NEC11A cell phone in my company car, great fringe signal abilities and it was the most consumer friendly device to use. The Motorola phones were horrible by comparison.
I fitted a vertical output ic however the previous owner must have left it on & some color burn to the screen centre, doubt theres any way to remedy that ?
could you elaborate on how you used pieces of solder wick to fix the crack ? I always make a mess trying to bridge those and i'm hella good at soldering
If you get an old display and the color is biased towards looking green, blue or red, how would you know whether to turn down the stronger color(s) or turn the others up to match? One would think on an old display, if anything, something might become weaker and need to be turned up and not stronger and need to be turned down.
i love watching your channel . my interest in obsolete junk , is kept alive by watching your shenannigans . please , dont ever stop .
NEC made some fine monitors. I have had several, including CRT Projectors and LCD computer monitors. NEC never disappointed.
I'd say only a Sony broadcast monitor looks better.
I agree I repaired a lot Nec tv's and monitors in my day !
If it wasn't for people like you, knowledge of all the old equipment you repair and resurrect would quickly fade into history. Yes, the young ones would still know the TVs were big clunky boxes, but there'd have no idea of what followed on inside. Well done, thanks!
These "lower-res" color computer monitors from the early 80s have amazing picture and the tubes last forever. The Commodore 1702 was very similar to this one and they just generate a great image, although as you mentioned they aren't super duper sharp.
I recapped and replaced a voltage regulator in a 1702 and my god that monitor came alive. While it was limping along before the repair it looked new after the repair.
1702 even has Y/C input on the back, a cheap cable will let you connect anything with s-video.
I believe that monitor was made by JVC, and used the same CRT and boards as their professional series.
@@coyote_denThat's right, it is a JVC product. All the commodore screens are pretty good but the 1701 best. The later ones like the 1080 and 1084 were nice because they could take Y\C plus both digital and analog RGB which makes them a jack of all trades but the tubes didn't last as long and the overall design wasn't as robust.
its truly amassing how good analog was as it was so fine tuned technically over the years before digital
CRT technology had reached the absolute pinnacle of performance, the color and sharpness is hard to beat. Great little monitor, NEC stuff always delivered the goods.
Manufacturers knew that, and they were not making as much money as before. That's when they foisted flat screens on us, and championed for changing the entire TV broadcasting system, to get people to buy TVs again.
My recollection is the NEC monitors in the 80s were considered the "best" by the contemporary electronics and computer magazines in those days.
Shango066 thank you for all the great videos..i eager for saturday waiting for any video you post..you are a real life master tech.your down to earth diagnosis and repair and your sarcasam is so funny..
He is the George Carlin of repair technicians on YT!!
That is a helluva good colour low-res monitor. The last time I saw such dense, clean, "splattering" colours it was on a small yellow 9' Sony from the beginning of the 80's.
I had an 22" NEC 'Diamondtron' (albeit Mitsubishi tube, I believe) in the mid 2000's for photography work, I calibrated it with a colorimeter and to this day one of the best images I've seen on a display.
At 43 yrs old it has a better picture and Vibrant colors than a modern TV that one is a keeper ... Great Video Mr Shango066
Man, that picture is so sharp and crisp and the colors just pop!!! Wonder if it was a new set that got damaged in shipping or something.
No road trip? No cigarette glaze? I'm sad 😢
I used to watch tv on a old Commodore 1702 monitor,what a picture it had!
A great learning lesson taught here. Inspect your boards first. How Shango missed it is because he assumed a component
may have been at fault first. I guess many of us have done the very same thing! Vintage NEC monitors were the best.
This was likely delivered busted and put on a shelf for 40 years until it was bought by someone on eBay thinking NOS would be guaranteed brand new, and turns out the board was cracked. Right on a corner edge where the feet of the TV are too, prime for dropping.
14:50 the sporadic scratching 👌 this is why I subscribed eons ago. Chefs kiss
I love how NEC marked the underside of their boards with a schematic of sorts.
"Easy fix" this time, great for a change. Thank you and have a nice sunday.
I miss old NEC.
Used one like this years ago. Was always impressed with the performance of NEC products.
I agree. I got one of those commodore monitors and with the snes and other games. It’s an amazing picture. With the sharpness and richness (not resolution) of the colours I’d say it’s still better then any common flatscreen you can buy today
Waiting each Saturday night for shangos next episode reminds me of waiting for my favourite TV programme every Saturday night as a kid. Please keep them coming, learning so much and I love the no bullshit approach 👍
I used to spec these nec monitors in the remote eng studio truck designs because of the clarity and brightness as well as the weight difference sony was much heavier steel box.
I have always used phone station wire for trace repair. It tins easily and will keep whatever shape needed. A scrap length of 25 pair will last years.
This must be the best looking display you ever did.
It's truly hard to believe that NEC of that era can produce such a high quality picture, circuitry and components. They must have given all the table scraps to Curtis Mathes to install in their garbage.
A monitor is calibrated "flat" at the factory, because it's typically used for work on a desktop PC or video production environment.
A television is adjusted to anything BUT flat - it's factory adjusted to out-shine its competitors product on a display wall in a store. And sadly, most consumers don't bother to take the set out of such mode. That's why so many flat screen TVs also last far shorter than a CRT from decades ago.
Got to love cracks. They always seem to give you trouble!!😂
ISWYDT. 🤣
Not that Im anywhere close to Shango's level come TV's & monitors but I've come across a few sets like this that were loaned out or put away in storage and came back to their owners not working. And just like this they suffered from being dropped & broken boards. For me (like Shango) I go for the easy quick fix first, but on these printed board sets I'm looking for discoloration and breaks first & foremost, fuses then to the components. And if the tv god's are smiling on ya.....they're a quick fix and you're a hero.😅
I used one of those for my game consoles back in the 90's. It had a fantastic picture. Though I could hear the flyback from across the room LOL.
Nice, old monitor. Perfect for retro computers and consoles.
The NEC Multi-sync was one of the BEST computer monitors that I ever owned.
Recently fixed a monitor for a classic Macintosh, had a blown smps drive transistor, blown neck diodes, blown ultra fast diode…was an adventure to fix
I sadly broke the nub off the back of the tube in a Mac SE a couple weeks ago while trying to remove the drive cage. But if I had to pick a tube to accidentally vent, that'd be the one -- they're still reasonably plentiful.
@@VectraQS it’s unfortunately very common to do. I run Amiga of Rochester, we do vintage Mac restoration and so many people have done this I lost count
@@thomasandrews9355 Ahh, nice to run into you again. I think we've talked a few times before. I still need to get in touch about sending a Portable logic board your way.
@@VectraQS hi! Small freaking world
I still have one of those, along with some Sony CRT medical monitors that I just can't bring myself to chuck out, they can just keep living rent free in my storage shed.
The image quality is very pleasing to watch, in a visual sense they are a bit like vinyl records sounding better to listen to.
These were common in video online edit room as a secondary color monitor. The primary would be a sony or ikegami usually but these were great for things like the chyron station. It was probably set to display the full roster on purpose to qc the image.
Best monitors from this period
As soon as you said the LED power light didn't turn on, the alarm bell went off in my brain. I'm glad that seems to be working right.
yes shango! Cracking up.
it is in incredibly good condition, which I like to see as I love electronics from the 80s
I can remember playing Oregon Trail in elementary school with that same display hooked up to a Apple 2e. Floppy drives of course!!!
Love the Vids Shango, always keep em coming !
Cheers from Oz
That Clirfo Brokulates just fine,. Nice Job, you alwayts impress me with your legendary skills
I always wait for Saturday only for tv repairs
. please keep this legacy..
15:29 Back in the day I used wire wrap wire or phone wire. Well done! ❤
Nice fix... Keeping a nice CRT out of the waste pile.
NEC was the best monitor money could buy back in the day. The MultiSync 3D was the Cadillac of computer monitors.
That is a really impressive picture. It shows that my CRT monitor needs looking at. It's gone a tiny bit fuzzy.
I have a similar monitor bought in the 80's for computer stuff at that that time. I put that thing on an elevated shelf in my shop with a tuner box in 93. I use that thing everyday and I think its going to outlast me. Everyday I switch it on thinking I'll graduate to a new flat screen and nope she comes right up and has a fairly decent picture. Never had to service it once yet.
23:01 At this point I need to bring up something regarding monitors vs ordinary TVs - be they CRTs, or flat screens, or something else.
The difference between a monitor and a television runs deeper than one having a tuner and the other not having one. Most monitors(for desktop use, exhibition display, or whatever purpose) are adjusted accurate at the factory. Consumer TVs? Anyone's guess!
As Dan discovered, watching TV on a monitor, even an older one like the subject of this video, via digital converter box or other such tuner, is a whole nother ballgame. He's seeing what's there, because a good monitor is transparent, and neither adds nor subtracts anything to the native image.
I encourage others out there to experiment like this, and see what TV can really look like, without the factory torch/store mode settings.
I can get close to this on a modern OLED or QLED flat, simply by choosing the least intrusive picture mode, such as Cinema or Movie. Or I could select custom, and make the TV more like a monitor by turning off all the so-called enhancers in the Advanced Picture menus, and properly setting the basic stuff(Contrast, Brightness, Color, sharpness, etc.).
Well done, as always!
These are the best things to watch tv on no joke, they had an awesome picture, they will beat any trinitron
I remember looking after lots of these NEC monitors in the late eighties, only problems was with the mains switch! (240v version)
Greetings, Mr. Shango, I’ve been enjoying your videos, I have been working with electronics since I was a small kid in Pasadena Texas. I will visit with you again soon I will be watching for your next video. Talk to you soon.😊
I had this exact monitor for my commodore C64 bought at BEST in the mid-late 80s
The later but still old nec multisyncs were fantastic
That's an *extremely* bright picture! The voltage regulator IC might be on its way out. As they age, their output voltage tends to drift up and could potentially FUBAR the flyback. I'll bet it would play a good game of PAC-MAN, though!
Sounds possible....
That breakage could very well been why the tubes' in such a good condition, lovley video.
It is a cracking good quality :-D
It will look perfect at shango066 end, but the camera is clashing with the crt scan.
No component damage.
More colour monitors please, i love these things, try and get hold of an EIZO branded one, you will be blown away at the quality of the picture i recommend the
EIZO FLEXSCAN F55 that was the rolls royce of screens. theres even sevice data for them around.
That looks like an Ebay shipping crack. Even if it wasn't shipped or on on ebay. I fixed a pro JVC vtr with bad crush damage like that on it's card cage back-plane. No stop hole needed, the crack was nice and long, terminated at a hole at both ends, severed like 22 small traces. Also had a cracked power supply board but amazingly that's all that was wrong with it.
Another triumph Shango.....
Interesting. Good save.
The Hercules green monochrome version of this monitor I believe was used in the library scene of the movie WarGames; where David is looking up information about Dr. Falken.
You know correct me if I'm wrong but this monitor comes from an era when television were made pretty good
Awesome. Don't worry, the next one will be a weird mullti-component cloaked & convoluted challenge! ❤
とても素晴らしいです。👍
Those hairline cracks often very hard to see under the varnish, nice fix shango066
I wish CRT equipment was still made :( in my opinion it is far superior!!
I remember the NEC monitors, lots of them were used on the Commodore 64 computers.
Appropriate that you're showcasing the monitor's color-producing abilities on the Rose Bowl Parade...on the 70th Anniversary of the the first color broadcast from the RCA system: the one the won the standards race.
Haven't really seen the video but first things in my mine with the description of the fault was, look for a BUZ90 and or BD149 I believe it was that often either de-solder them self's or let out magic smoke. repaired many a monitor from that time and that was the most common fault.
lol OK a cracked pcb will do it. guess the old saying works again, you shale measure voltages.
I wish that you would repair more CRT monitors.
This tv is practically bran new compared to what you normally work on
That picture looks great that CRT must not have many hours on it back in the 1980s and 90s I repaired a lot NEC products They even made Sets for JCPennny's too .
Great Saturday Morning quick fix great catch. But no Crape Erase Commercials for my deg late'
I was expecting the spider to bridge the contacts of a fully charged HV cap. TV as bug light. Bzzt!
The LA7800/7801 etc data sheets are very helpful and have pretty much the same suggested circuit. Edit: Then he goes there...🤠
Bravo
i came across a NEC 20 inch TV in the 1990s, had a dud line output transformer, i tried pretty much all main spares suppliers(i'm in the UK) and none could get any parts for ANY NEC stuff, was told no spares were available here, ...so ...why did they sell the TV here in the UK (was definitely a model designed for the UK)
Have to take the tuner apart and throw the shield away made me laugh 😂
Nice to see(?)/hear you again Shango. Maybe an idea for next movie - comparing a TV from the 2000s to a CRT computer monitor from the end of production, with 85Hz refresh rate. It seems similar, but? And by the way - this camera has bad auto-gain of sound...it waves a lot...
This looks like a monitor intended for the Apple ][ as it has more or less the matching styling. Any home computer from the late 70s or early 80s used composite for video.
It was probably a color security monitor. But that said... it would be usable for computers. It would be far more useful if it offered separated chroma and luma. That offers the best picture.
This would be outstanding for a console though. Perhaps an NES or super nintendo.
If I were local, I would buy that thing in a nanosecond.
@@vhfgamer I have a Sanyo built BMC branded monitor of the same size from the same time period, yeah it has a very good, sharp picture on it.
NEC made the best products ever. I had an NEC11A cell phone in my company car, great fringe signal abilities and it was the most consumer friendly device to use. The Motorola phones were horrible by comparison.
saw the crack and lots of burnt flux from heat on the edge of the board. flux and burnt glue often tells a story
Seems it is indeed a good computer monitor
Monitors are NOT TVs. Respect that.
I remember that SWitch! : )
I fitted a vertical output ic however the previous owner must have left it on & some color burn to the screen centre, doubt theres any way to remedy that ?
could you elaborate on how you used pieces of solder wick to fix the crack ? I always make a mess trying to bridge those and i'm hella good at soldering
I have a Philips TV with the same problem hear, I hope it's just a compositor… (maybe I'll make a video of my repair attempt)
by 84 we've designed the need for tube power increasing reliability~ :)
Monitor antiga nec jc 1215 🖥😉
I was screaming "There's a fricking crack in the board!"
Cool
What a Lucky one! a broken board instead of a broken CRT...
I got an Sony Trenton Tron but it's got a perfect picture but you got to smack the back of the TV to get the signal to come in. Can't find the problem
Looks awfully lot like the NEC screen I used for color demos with my Apple ][ back in the early '80s.
Wow...invisible cracks are a nuisance!
If you get an old display and the color is biased towards looking green, blue or red, how would you know whether to turn down the stronger color(s) or turn the others up to match? One would think on an old display, if anything, something might become weaker and need to be turned up and not stronger and need to be turned down.
NEC made quality hi fi as well back in the day....before everything went shit..