 Hey everybody, welcome back to Retro Tech. So I am currently working on the Sony BVM D24 And I'm working on my cap kit for a lot of the boards and I often get the question How do I develop my cap kits? Where do I get the information from and how do I go about ordering it? So I thought I'd make a video just real short here and show you how I go about it that way if you happen to be working on really any CRT and you can find the service manual for your specific CRT then you can go through and do this exact same process that I'm going to do with the D24 boards and then you can build a cap kit specific for your Monitor or television or whatever you have that might be a CRT that you need to recap So again first off you need to start off with a PDF file of your manual Again, it needs to be the service and operations manual for example. This manual has 239 pages in it And I've gone ahead and looked ahead, but there's a table of contents. We're going to jump down here to page 148 Which is the board I'm working on which currently is this one. I'm going to hold up right in front of you This is the main Power board for this BVM It is again the D24 E1WU and this is a card that slides out It's fully shielded with the main power Input and power button on it and it has quite a few electrolytic capacitors in it Again that are over 20 years old so I want to go ahead and recap them and rather than just like looking inside here and Trying to figure out what each cap value is I'm going to go down to the specific spot on here That is for the G board and this is the part slash components list and if I look right here It says G complete so that's the beginning of the G board and if you just scroll down a little bit Whoops went a little too far there Towards the bottom of the page It will show you the capacitor list for it and The capacitors always are going to start with letter C So we've got just keep going a little too far but down here towards the bottom you can barely see it on your screen I'll go to the next slide and it'll be up here towards the top see it says C16 So today we're just looking for the electrolytic capacitors on This particular board so I'll come over here and I'll go C 18 is an electrolytic capacitor 47 micro faran 50 volts with a 20% tolerance which is a pretty standard easy thing to order for an electrolytic capacitor from a Digi-key mouser any kind of capacitor resource that you have you can go there and order that capacitor with just electrolytic capacitor and then type in that value and it'll pull up a bunch of different high quality replacements that you could use So anyway, I go through here. I've got a reference to C18 so what I like to do now you can do this by Just you could do this just by using say a piece of paper But I like to do it on these forms in Microsoft Word because that way I can save it so again, that is C18 and then I'll go through here and it says C18 is a 47 micro faran 50 volt tolerance so 87 micro faran 50 volt tolerance and most capacitors nowadays are going to be 20% or better So as long as you shoot for that 20% and always try to get like 85 degrees Celsius or 105 degrees Celsius Those are generally Upgraded caps on what was originally done 20 years ago So again, I'll put that in and then you just move on to the next one skip down and the next electrolytic capacitor for example Is C102 and there's the value for it So that's what I'll go through here and do for this entire board I'll go through and get all the C's that are electrolytic on this Listing here put them in my Word document and I bet this was probably going to come out to about 40 Different capacitors and then I'll just take that list And I will go into like I said mouser Dot-com and order it but before I do that I again can use Excel for example And let's say I've got multiple boards that are all different But they're using a lot of the same capacitors for example, you'll notice there's the same capacitors on different boards So if you're working on one giant monitor and you want to order all the caps at once rather than going in and individually ordering each board you can save money by consolidating those orders and Just you know what because once you get over like Quantity of ten or more on the capacitors from the order wholesale you get a price decrease on your parts, so You can go in here. I'd like to go into Excel and then again Reset and and put down here the values for every capacitor that is on the cap kit list So I'll take and refer to my sorry wrong one I'll refer to my Sony Cap kit list for example, and then I'll match that up and put that with the list of capacitors in here And that way I can have a full You know like for example, if there's one fifty volt or with one Uf fifty volt on each board well I could put two in here and that way I only have to know to order two from the wholesale site But then if you get to quantity over tens You can start to actually save money if you're doing bigger cap orders But I feel like that's a real easy way to go in and see you know Then you could double-check how many capacitors are in the kit total So that's just again. That's all I'm gonna be working through. I just want to show you that real quickly so Again you can do all this by freehand and I used to do it by hand years ago, but then it's better to save the data so I like to go through and make a bunch of different cap kits You know and just do that now there are some capacitors that might be changed and recommended by say the manufacturer like Sony did have service bulletins that they would often announce so Unfortunately, we're probably not gonna have access to a lot of those and so still just going back and Recapping it to the manufactured Standard it's gonna be better off than just leaving it with the old capacitors So if you do have access to those then consider yourself very lucky And make the changes that the manufacturer recommends Otherwise just go through and cap it according to the parts list in the manual But that's how you do it You just get a straight out of the back pages of these service manuals It literally lists it right here and it lists the location and then that location for example that C 102 I can find that on the circuit board in here and That way I could quickly remove all the capacitors at one time go in there and say okay I'm looking at C 102 on here And then I put it in the correct value and put the new cap in that way and that's pretty much it So I hope that helps a little bit and I'll see you guys definitely next time with some more recapping and more retro content