 This is the Sony PVM-20M2 MDU CRT monitor. It is a medical grade CRT and it is one of the more desirable PVMs in the CRT format. I also want to warn you of some things that you won't want to be aware of if you're considering owning one of these or if you happen to be lucky enough to already own a 20M2 or MDU series CRT. First off, it has a Trinitron tube with 600 lines of TV resolution and it also does support 240p and 480i analog video signals. Those will be supported in the form of composite video, S-video component and then RGBS or sync video formats. It does not support the higher resolution video content that being anything in 480p or higher resolution that is not supported on this monitor. Now there are a couple of tube variants available on this medical series. There was a darker tube that was available and then a lighter tube. So just be mindful that some of the CRTs do look different. Now the Sony PVM-M series is one of the most popular Sony PVM CRTs that you're likely to see at this point. There were tons of them made for mostly medical purposes and other laboratory purposes. There were also different variants of this model. So what we have today that we'll be looking over is the M2MDU slash ST. And this is basically a full-on medical variant and one of the preferred M2s. Now there are reasons that this is the most desirable M2 and we will go over that today. We'll also look at a lot of the internal hardware. We're going to take a look at some of the incredible hardware that's driving this picture and the Sony PVM inside the CRT. First off you'll notice quite a few different circuit boards broken out here. This was one of the last times Sony would use this particular design. This design did start with the 50 series which was the predecessor to the M series. And they look very similar inside. And sometimes we'll use similar parts. There is a power supply there on the left-hand side. And then we've got the CRT tube which leads into the deflection yoke and then the neck board. And then our main board down here which I have already gone in and serviced so it was removed. And then there is a specific cap kit for this that is preventative if there is no problems. Which this one was one of the better condition ones that I've seen in a while. So there were not a lot of issues. The input board is the reason that the M2MDU series is the most desirable of all the M2s. And the reason is you get a second input at the bottom that can be switched between RGB and sync with mono audio. Or it can be also switched over to component input. And you also have support up here for a single composite and a single S video in and out with mono audio. The rest of this is not as important. You do have grounding in and out on this monitor. That was a feature for only medical. And then you have some other connections for controllers. And then actually a DC 8 volt 0.8 amp out. If you for some reason wanted to connect power out of this input board that is available. Alright let's finish up by going over some of the pros and cons again on this Sony PVM 20M2MDU. Some of the pros has a nice built in service menu on this monitor which is highly adjustable. So things like adjusting horizontal and vertical centerness or making adjustments to corner geometry is pretty user friendly. And it's much easier than other models that don't have a service menu. It offers a variety of color temperatures. It supports nearly all types of sync that is output by gaming consoles. Specifically ones that are troublesome on other monitors. This one seems to be the most forgiving of all the PVMs for sync adaptation and compatibility. Some of the cons though. They do always pretty much need some kind of servicing. And they can develop problems over time due to design faults usage. And then ultimately how they've been stored. This one has been serviced. It's had a cap kit done to it. We've gone through and replaced capacitors that are problematic. That cause things like vertical blanking issues and other geometrical issues on screen. And we've upgraded those parts. And hopefully that will not be something that really is a con anymore for this particular MDU. Now you do have limited deflection yoke. It's not as adjustable as the higher end PVM and BVM yokes. So it's not like saying that it's a bad yoke. It's just there is a more complex and adjustable yoke available from Sony that was not used in this monitor. And finally they are getting expensive and can easily cost over a thousand dollars for one. That's not even been serviced. And so if you do have one serviced that can add another few hundred dollars to that price. So these are highly desirable but it's definite condition dependent. So there's obviously ones that are in bad condition that are pretty much worthless. Again if they have problems on the main board that are not fixable. Or if there's some damage to the tube like screen burn or some other unfixable problem. That's going to do it for today's review of the wonderful Sony PVM 20M2 MDU. Please let me know if you have any comments or questions. Thanks again I'll see you all next time with some more retro content.