 Hi, I'm Steve with Retro Tech and welcome back to another episode of Quick Talks. Today we're going to look at CRT's a little bit more and we're going to cover focus. Focus is going to adjust your blurry picture, so if your picture is blurry at all or if you don't feel like you're getting the proper sharp crisp picture overall on your screen that you should be, today's episode is going to cover how you fix that. I also wanted to cover something else in today's episode, of course this technique is going to be able to be used on pretty much any CRT. This, we're going to also go through the proper way for opening the CRT, or at least this PVM for this type of adjustment. There are a couple ways to get to the back of a PVM but I'll show you the easiest way for this adjustment. Looking around the side of the monitor here, there's actually three screws on this side, one here, one here and one here, Phillips head screws and it's the same thing on the exact opposite side. I'm sure you've seen those screws, obviously today we'll have to remove all six of those screws and then there are four more screws on the back that we'll have to get to. If you're ever working on a PVM making these kind of adjustments, these are the screws you want to worry about, those six and then there's a black screw down here, one right here, one right here and then another one down here in the corner and that's it. You don't have to worry about pulling these rivets. These rivets can be pulled if you need to make, if you need to take the shell completely apart and clean it fully, which we'll talk about in a new episode. But to get to the PVM you just want to remove those ten screws. So let's do that now. Back behind the PVM now with the cover removed and once you have your screws out and you just want to slip that pull the shell, stand behind the monitor and pull the shell backwards and it just slides behind and comes right off. And now the part we're looking for to adjust our focus is back here. It's on this fly bag ninety percent of the time. It's on here on this one. So it's right down here. There's a little black potentiometer knob down there if you can see it. And I have to just turn it. I have to turn that little knob with my finger just left or right, basically clockwise or counterclockwise to make an adjustment. The monitor does have to be powered on to get this adjustment done right. And so basically what I'm going to be doing behind the monitor is just turning that potentiometer and clearing up our focus. I'm going to move the camera back to the front so you can watch that. I've got my screen turned on here with my test suite. This is a good test so you can kind of see throughout the entire screen how focused and sharp your picture is. You can see we've got a blurry picture here so let's start turning this. I'll move the camera a little bit so maybe you can see me doing it. And as I turn it, I'm going to watch the screen. Again it has to be running. Watch the screen and see how it just sharpens up very quickly. If you go too far it'll get blurry again. You want to get it just a happy medium and there you go. And that's basically it how you clean up focus. You're going to want to just go back and put your shell back on, put your screws back in and you're cleared to go. Thanks again for watching this episode of Quick Talks and look for more episodes in the future. I'm Steve, have a great day.