 Hey there everyone. Thank you for joining me today. I'm RetroTech and now welcome to a new question and answer session So I'm specifically going over YouTube questions that I've gotten over the last three weeks I've got quite a few good ones. It's gonna be about a 20 minute video So just sit back relax and see if there's something on here that might interest you in the background. I've got my JVC D series with a pre-recognizable movie and that is on VHS So I'm just gonna leave that going. Hopefully it turns out okay for the viewing audience, but Let's just go ahead and jump right into the content. I think there's some interesting things here So first I want to talk about a discussion. I have with Keith Gable Keith and I have been discussing the PVM N series a Sony PVM N series. I have an N1 20 N1U that I'm gonna be RGB mining. That's gonna be coming. That video is gonna be coming this week I think but we're gonna work on that. I specifically am but Keith's been helping me Go through schematics and we realize a lot of these things match up with other N series Almost all the N series parts are pretty kind of almost interchangeable. So that just lets me know that kind of reinforces the the point that we proved in the restoration video Where sometimes you can swap around parts from certain PVMs back and forth and they'll work together Okay, so it's going on. Albert has some color problems with one of his PVMs He's only got one color showing or maybe he's missing a color and Generally, there are color drives on the back of the yoke neckboard and they're just little Parts that are and you can Google them to see more information about them But they're the color drives and they'll have Parts that go bad on that line. So I've got one that needs to have that done So eventually you'll be able to do a video whenever I go through and do that one It's just one of the smaller PVMs a eight inch. So That's generally the problem That would be if you're missing a color or missing two colors Now if the tubes bad and it's missing a color changing that part won't help So if you still have the problem after that, it's either the two is bad or some other part In that color line is broken by their transistor or something. So again, good question there. OJ How hard do you change? I'm sorry. How hard do you chase corner convergence? And he said he's added strips on the back of one of his PVMs and it's pretty good But he's got a little bit of a color separation that he's trying to work out Again, you can chase this as long as you want and honestly, it is almost Near impossible to get them a hundred percent Perfect I'll cross all the corners and everything and that's why if you read the manuals It'll actually tell you that these CRTs most of the time are only built to be at the most like 97 percent accurate Screen depiction. So they're even admitting that with this this type of technology. You're just it's really hard to get it perfect So I always say get it as best as you can because you could spend hours trying to adjust something and never really get it Right, and then you'll never stop looking at the problem area So just try to get it out of your head and accept a little bit of problems It hasn't just ignored and enjoy the other areas that look great on the screen Henry Cardenas is on he has a JVC also television and has a picture-in-picture board and if he removed it with the TV still function The same minus the loss of the picture-in-picture functionality I think so most of time picture-in-picture boards that are just little cards inserted into a television board or the chasey Chassis, excuse me, and why have a hard time saying that that the chassis if it's not in there It's not going to affect the TV from turning on or functioning with every other function usually Bartek Schuster had a great question about how many hours do I think a consumer grade CRT would handle This is kind of a difficult to judge because there's not a CRT That's a consumer grade that I'm aware of has our counter in it most of the time now You're pretty safe with the consumer grade CRT and the reasons are For the most part if you turn it on it looks really good there's no bleeding or if it if it shows all our colors pretty good and You want to check for any kind of screen burn because screen burns You're not going to be able to fix usually So if there's no screen burn the TV should be fine and as far as hours Let's just think about a Mathematically if you had your CRT running four hours three hours a day Nearly every day of the year you'd still only put about a thousand hours at the end of the year on the TV So, you know these TVs weren't used heavily for a long period of time Generally, I mean the longest somebody might use one is ten years, but most of time people didn't use them full ten years. They never used The TV so it's a high-quality TV like a Sony Trench on or a JVC your pants, you know one of those good brands It's it's gonna be able to go up there You know 40 50,000 hours and you yourself, you know, you're only put a thousand hours a year on it So you're gonna give ten years good use out of the screen looks pretty good Usually it's the other Parts of the TV that fail not the screen so the good news is is you can tell a lot about a screen just by pretty much turning it on and Just have something with you that you can put a signal to when I go check CRTs I generally take like a second genesis. It's small easy to carry around and You know plug it in pretty easily to anything with composite or you can even take the RF with you So that's my recommendation for that LAC64 so do I have any parts lists or Compatialists I've been gonna ask for that from other people too. So the deal is with that that we're gonna I'm gonna offer that as part of my patreon Benefits you will get access to all my cap kids. I'm still working on Perfecting those I have got about four or five PBM cap kids ready And obviously I've got a cap kit for the Samsung CRT as well as the other Sony CRT But I you know and also as far as like the build outs on things like the RGB mods Things like that is going to be benefits of that patreon So I'm sorry to have to do it that way But I've got to I've got to do something to try to try to do Get some funds up for things like this next question Paul Derek to ask do you have a Any kind of CRT rejuvenating device or CRT? Tester and the truth is no I don't I want to get things like that I want to get things like that I want to get a silkscope some other important tools to get around here so we can make some more video content do some more tests on these tubes and Perfect even more what we're working on and that's all gonna be done mostly through probably patreon because YouTube just doesn't give you a whole lot of Sharing on the money or anything, you know, so it's not like you get a lot of money there to really buy anything So that's the best way I see it. Is it that the you know as a channel can grow I'll be able to reinvest in it but by getting new tools and rare tools like that and using them to make more content Kenny Latterdale always has some great Questions and he has one here for his he has a pvm where his corners seem to veer off and And Get wonky and he can't change them through his pin settings in the menus And if it's consistent like that more than one corner than he has probably your caps that caps needs to be replaced on there I'd get I get checked out because you don't want caps to go bad in league But that's probably that's a sign that the capture bad another sign is if you make an adjustment and it Holds only for like an hour or two to come back and the adjustments gone. It's wonky again in the corners That's generally a sign Another thing to check is screen linearity if anyone's weird on that and you try to change your linearity settings And it's not changing it. That's another sign that you've got bad caps in your deflection board And you can't do anything from bad caps except change them So if you're not having any success through the service menu change the caps Scrawlings I have Tronatrons that all exhibit horizontal bowing a lot like the last question and He wants to keep them But yes again try the service menu if you've never serviced at the CRT you you're worried about before It's probably because it's time to be serviced Generally speaking it's going to be 25 years old most likely so that means taking apart cleaning it cap replacement and That whole process of recalibration afterwards With the service menu. So that's that's the whole recommendation I make for those TVs Kenny Lauderdale again our 800 line pvms darker than 600 lines in nature What's the difference a little bit? That's just a little bit of resolution increase lines They're going to be a little bit more line count a little bit denser line count should have a little tiny bit sharper picture, but honestly You won't see a huge amount of difference between 800 600 line monitor sometimes even if an 800 line monitor is worn out Could look worse than a 600 line monitor that is in good shape So it's hard to say it's really going to depend on the condition of the individual monitor And it's not a huge jump at all by any case between 800 600 lines seek Barrett Are all these methods that you apply to CRT? Can they be done to other types of CRT monitors? The truth is yes now? It's not going to work on you know a different type of technology like flat screens, but any type of CRT is going to use the same Style and type of technology for the most parts Okay for the next question Stephen Norton He's been using RGB cables for his consoles and scar Specifically on his 20.05 and you wanted to get more color saturation out of his TV Now you're not going to really be able to do that Using RGB because RGB pumps in is just straight-up color You can't use gain or phase or any of those chroma adjustments on that. What you can do is if you really want to The first thing I do is check what your color temperature setting is for your Monitor and pick the one that looks best for you on that one and then go in and check your sub brightness and your sub contrast on your service menu and Turn those up a little bit and see how that looks and then If you're still not satisfied, you know The only way to really push that further would be to convert your RGB to component And then use the component in on that monitor and then you can use all those chroma and phase increase and gains you can actually Blast those colors, but you're going to get color bleed if you do that And it's going to really fade out of your scan lines. It's push the monitor to a point where it's not really good to run it like that So don't go too over the top with it David G asked about capacitors and he was wondering if it's true that they're more dangerous He said he had read it was more dangerous than the cathode or the anode cap or the Connector in the back of the TV, which isn't true. That's the most dangerous is that That area in the back of the CRT that that cathode Connects to the CRT. That's that's where the electricity is held up It's much more dangerous than the caps are on these CRTs most of the time the caps are going to be under the board I'll show you how to discharge a cap and the next time I change a cap on there But You know the only time you're going to do some is if you actually even went down and had energy in it You put your hand down barehand and touch both ends together You might get a current run through your finger right there, but I've never even been shocked by a capacitor I don't want anybody to think that's really gonna hurt them or you know these TVs usually aren't full of Extremely high voltage capacitors or anything That are going to be that harmful Just again take precautions Don't do anything silly and even give yourself a risk of hurting yourself So just because I mean if you fell and hit that part of the board anyway, you're going to poke your hand all up and you know Scratches that hurt without a good shot and many people have been asking about a screwdriver or something to change To get to the flyback and change focus and screen brightness And that's a good idea. I'm trying to think of a way I need somebody to help me with a 3d printer so if you're interested contact me, let me know and I'll work with you if you know how to do a 3d printer if you're an expert on that and we could come up with something because I need Something small and plastic that we can just get in there and easily turn those Without having to touch it with your fingers because right now. I mean I always have to just touch it with my fingers after I thoroughly inspect it I Touched with my fingers and have to use it that way Sully 1986 can he swap tubes? with similar consumer Cot's and PVMs Maybe if it's Sony or some similar type of tube you might get away with that, but it's not a guarantee You first you got to make sure the pin out on the back of the neck or where the neck board goes in matches The problem is then you know, you've got You want to make sure it's like similar or so similar that I don't know I don't know that a consumer grade could go into a PVM Maybe if it was that we could try that some time if we came across that situation And they asked about replacing a flyback with a consumer flyback from that to a pvm I don't think that's going to be possible. I've not again found anything good for flybacks replacement and Other than just trying to get a whole new replacement board that's already got the flyback in it Those become available sometime on eBay, so keep your eyes up for that Okay, I got a couple more questions here. Well, I do a video about adjusting yoke rings probably but again I need some more tools. There's a specific proper procedure For adjusting that and you've just got to have a right setup. That's unfortunately one of those things You've got to have a certain setup to be able to generate the right test pattern and to be able only to generate single colors Through you too, so you can line up those rings correctly. It's not a hard procedure once you have the right things set up but I don't have those things set up and I Just don't I don't have them myself So that would be something else that hopefully I'll be able to acquire from the you know patreon stuff Charlie cat asks a great question here and it's gonna be one of the last questions and you said what's the Least favorite CRT model that you come across That wasn't to your liking and I've been thinking about that I've had a lot of CRTs obviously and one of the worst ones though is one of my first pro monitor experiences It was a Sony BVM and I thought I got a great deal on it I did get a pretty good deal and it was four years ago again. There was no information about BVMs This was maybe one video was available from phone dork and one page on retro RGB And so I just randomly got one in an auction that was near me where guys pumping out BVMs left and right I got one for 300 bucks delivered to me and I thought I got a great deal And I was so excited But I got it home and it was an a series and this was like before anybody knew anything about avoiding an a series So I personally had to go through the experience of learning about how rare the video card is in it That supports RGB and component that I didn't get with my monitor. It only did HD SDI form of video input. So I had that problem. That's so I couldn't even use it for a while I had to get a 61d card for it So it would do s video and composite just so I could use it then I got to play with somebody made me so upset because I Wanted RGB and I got the most expensive composite as video monitor ever. So I couldn't find a 68x card that's About 2,500 to 3,000 were only made of that ever so I wasn't going to pay the thousands of dollars it cost to get one of those When they come available Most expensive thing in this hobby is that that card. So I sold the TV to or the monitor to a video Production company in New York who worked on documentaries. So that's where went and they haven't been using it for Documentaries you know film editing ever since so that was pretty good story I got at least to get rid of it and I didn't lose any money. So I Think that we've got one more question here and came from quite a few people and it's what do You look for in a TV if you want to RGB mod it I'm gonna try to go real quickly here But you have to first off find the schematics for that TV and that looks like a giant blueprint. So find that look for two chips and The TV will need to have two chips major chips You know, they'll have a lot of pins on them and one of those chips needs to be a jungle chip or an IC that Usually says video chip and it needs to have RGB into that as well as a blanking into that and say OST or some type of blanking most of the time the pins are all right there in a row all four together So check them sometimes you have to trace the lines You have to find those four pins it has to have that set up to make it the way we've been doing it in the videos That's how it has to be The other thing it needs is you'll have to find a good ground spot a good five volt spot And then you have to have some way to tap into Composite video and ground for sync and then you tap into your audio line So if it does AV already like if it's just an RF TV that probably be difficult I don't know it might not even have the chip set up. So if it has audio it usually needs to have at least RCA hookups AV hookups and those two chips But you're always going to need the schematics on that. So don't even try to do it without you won't be able to do it Anyway, that's all the time for today. Thanks very much for hanging out and watching the video I hope you have a great weekend. Please look for the new content coming next week We'll also have things from the show coming up. I got a lot of things to show when we get it set up So look for that from the convention. That'll be next weekend. Again. I'm Steve. Have a great day