I've said it before and I'll say it again, you have a great way of explaining a topic step by step without being at all patronizing. Really enjoyed the video and I learned a lot in 45 mins. Great work Adam.
Pro tip: The first set of rings furthest from the yoke control the red/blue alignment. Moving the two apart from each other will adjust them vertically. Moving them in tandem will adjust them horizontally. The next set of rings (the center set) is used for moving the red/blue on top of the green. Moving those two apart/closer to each other will adjust them vertically over the green and moving them in tandem will move them horizontally over green. The K7000 manual breaks this down really well. Awesome video though, Adam! -jimbodeanny
Awesome video, Adam! Thanks for sharing your knowledge and experience. Be keen to see a follow up video if you get to play with adding convergence strips.
This is the most thorough and patient video on monitors I have yet found. Well done! Only one thing: I'm not sure if I would wear a watch when poking around the back end of a CRT!
This is the best convergence guide I've seen, I had to do a WG U2000 a while back because the wedges were all missing and the yoke was flopping around and it didn't come out nearly as good as this mostly because all the advice I was getting on how to converge it was incorrect or incomplete. After seeing this guide I'm thinking I might pull the monitor and do it again. Just an FYI those convergence strips are very difficult to find. if you happen to find any for sale it's worth buying because they don't pop up very often. I also recommend stealing them (and the wedges) off of any tube you plan on throwing out. However I found you can make your own using break away razor blades taped to the end of plastic strips made from a "for-sale" sign. very cheap and easy way to make some if you can't find the real ones.
I always make my own strips with the razor blade pieces -- probably because I'm cheap like that ;) They're super easy to do and they are very effective. Plus, you can make them as weak or strong as you'd like depending on how many blades you use and where you put them on the strip. Most of the time though, you really only need them to fix small problem areas like corners. If it's an entire side or a larger section of the image, it's usually a yoke adjustment.
echoing eveyone else... great informative video, presented simply and effectively I have a major job with a 9200 coming up and this vid definitely helps. thanks again
Great video Adam. Thanks for explaining this in so much detail. Excellent demonstration. I am about to start learning to do this myself so this has been really useful!
Adam, Thanks a lot for this video! I had no idea how to adjust the yoke and that was in fact the problem with my Star Wars 6100 video. The colors have been off since I got it 10+ years ago. Now the colors look perfect! Much appreciated!!!
problem is gravity of the earth affects the end product. My experience is that you should do this level of setup where the game will actually live. A move of a few feet can change a perfectly executed convergence job. Awesome explanation as always!
You have fantastic timing my friend! We just moved and several of my games have monitors that are showing problems. Now I'm a bit more confident. If only my garage wasn't freezing.... :D
Thank you for the great video Adam. This video has given me the confidence to try and do this myself to a 25" Wells Gardner I have. I got a question for you though, you say at the start of the setting the purity part, "to center the red in the middle" but in my Wells Gardner K7000 manual it says "to first center the green in the middle". Does the colour you want to center in the middle depend on the monitor you have?
Thanks! Would love to see more on this. Found this through reddit's /r/coinop subreddit. It's very difficult to find any information about fixing CRTs today, most being on paper, probably thrown away at this point, little uploaded, and almost nothing in video format, usually just very small websites that have it sort of on the side, not a main feature. I have an old (late 70s, early 80s?) Sony Trinitron, heavy as hell, and while not the best TV, it's a Trinitron, one of the best lines of somewhat common (even the professional ones) CRTs. I can't get it to even turn on, and always needed something like this, /r/CRT and /r/CRTGaming ironically being useless, everyone saying to either throw it out or "take it to a professional" and "to not mess around with it"...meanwhile I'm learning electronics this year (getting more into the terms, what the parts actually do in detail, and actually putting stuff together) and many times more careful than the average person. It'd be perfect to work on, not worth much, and an interesting TV, and a good one to learn on. What would you recommend for someone just starting in repairing CRTs (Websites, etc.)? What tools should I look for? I have many copies of Electronic Technician (and the /Dealer versions) and learn a lot through them, but they're a bit old and also sort of assume you know a decent amount already. They're from ~60s-70s. I think a few are from the 50s. They are sort of useful, though, and I bought a huge RCA repairman's box and some parts along with the magazines. I've been reading through what I have, but I should probably find more beginner stuff.
Still fairly new to the hobby so I've lots of questions generally, but the one I am curious on is, you mention at 2:35 that you want to put the monitor on an isolation transformer. This is only when not working on the monitor in the cabinet right? That's something that is normally done in the cabinet's trunk/power supply, right? Also, can you ruin a monitor by trying to degauss it too much/too many times? Thanks Adam for the great videos (you should do more) and thanks for potentially answering my novice questions.
Hey! That's correct... every cab should have an isolation monitor inside so when working on a monitor inside the cab you should be all set. I may be mistaken but I don't believe you can degauss a monitor too many times. In fact many monitors have a degaussing coil built in and everytime you fire it up it degausses the tube before the raster starts.
Awesome video, it really helped me with an old arcade monitor I had problems with. I have a small question though, the colors looks crystal clear now but I have a problem with the vertical screen settings, when the control knob is turned all the to it's maximum the top part of the screen gets distorted, but when I find the "sweet spot" for the verticality it cuts off the bottom part of the image, do you know how to fix this??
I have a monitor that I rebuilt and brought it back from the dead... The problem is the picture is blurry. I hooked up another chassis and it still does the same thing (so its not the chassis). I also had someone connect a rejuvenator to it and the tube tests good (but its def the tube causing the blurry image). Can moving the yoke around help with a blurry image? It's the only thing left that I haven't done.
I really appreciate the video. Certainly the best video I have seen so far. I am wanting to work on a 2000 Trinitron, but unlike your monitor the anode cap wire is very obtrusive and in the way. If my gloved hand brushes that does it mean death for me lol? And if so how should I deal with it?
I've got a question , I cant get to my menu screen on area51 there is 2 buttons behind the coin machine one button dosnt work and the second resets the game , I want to get to my menu screen so I can calibrate my light guns . Can you help
I know this is a late post but you can also use another monitor that has a working degause to degause a monitor sat next to it. I found this out when i used to run 2 SVGA 19 iinch CRT's together and one had a degause and the other did not. Whenever I degaused my main monitor the other monitor would also degause too. Strange I know but it worked. Great vid Adam and stop stealing Johns stuff lol.
Unrelated but I after watching you on Mikes Arcade, I was wondering if you were able to build me a small micro controller that would intercept the player one button. I would like the button to function as a start button but if held for 2 seconds send a signal for another button. What I am thinking is that I would like to map ESC to quit games in Mame if the button is held for more than 2 seconds. Thoughts?
+theboy181 Sounds like the old CoinUp design. You could hook up the coin output to the ESC input of your keyboard encoder. th-cam.com/video/4SMIK6OR9J0/w-d-xo.html
If I personally brought my monitor to you, could you adjust it for me? Yesterday I drove 10 hours(round trip) to take it to a tv repair man that said he could fix it and the convergence is still off. I have a Wells Gardner k7401 in an MK2 machine. I replaced all the capacitors myself and nothing has changed.
If I personally brought my monitor to you could you adjust it for me? Friday I drove 10 hours round trip to take it to a tv repair man that said he could fix it and convergence is still off I have a Wells Gardner k7401 in an umk3 machine I replaced all the capacitors myself and nothing has changed
I have this beast to deal with. imgur.com/gallery/GLpXn The center is slightly messed up, but the corners could use the most help. Should I just get a technician to do this? Because it's kinda scary from it's size, I don't want to accidentally kill myself.
You're a fantastic teacher. However I get extremely uncomfortable watching you move your bare hand very close to the 30,000 volts! You're making gestures and all. I would wear those rubber gloves at all times getting anywhere near that stuff!
![How to Rejuvenate an arcade CRT monitor [B&K 467]](http://i.ytimg.com/vi/nWqqB_OnYzE/mqdefault.jpg)
I've said it before and I'll say it again, you have a great way of explaining a topic step by step without being at all patronizing. Really enjoyed the video and I learned a lot in 45 mins. Great work Adam.
+lesoleil70 Thanks buddy. :)
Pro tip: The first set of rings furthest from the yoke control the red/blue alignment. Moving the two apart from each other will adjust them vertically. Moving them in tandem will adjust them horizontally. The next set of rings (the center set) is used for moving the red/blue on top of the green. Moving those two apart/closer to each other will adjust them vertically over the green and moving them in tandem will move them horizontally over green. The K7000 manual breaks this down really well. Awesome video though, Adam! -jimbodeanny
Excellent video and an example of what other content providers should endeavour. Thanks for doing the heavy lifting and making this job easy.
Awesome video, Adam! Thanks for sharing your knowledge and experience. Be keen to see a follow up video if you get to play with adding convergence strips.
Thank You Adam, this is the only actual useful video I have found on purity and convergence!
Adam, this video is phenomenal. Thanks for taking the time to make it.
This is the most thorough and patient video on monitors I have yet found. Well done!
Only one thing: I'm not sure if I would wear a watch when poking around the back end of a CRT!
Yeah a metal watch I would agree... but this is an cheapo plastic/velcro one from Wal-Mart. ;)
This is the best convergence guide I've seen, I had to do a WG U2000 a while back because the wedges were all missing and the yoke was flopping around and it didn't come out nearly as good as this mostly because all the advice I was getting on how to converge it was incorrect or incomplete. After seeing this guide I'm thinking I might pull the monitor and do it again.
Just an FYI those convergence strips are very difficult to find. if you happen to find any for sale it's worth buying because they don't pop up very often. I also recommend stealing them (and the wedges) off of any tube you plan on throwing out. However I found you can make your own using break away razor blades taped to the end of plastic strips made from a "for-sale" sign. very cheap and easy way to make some if you can't find the real ones.
Thanks! Yeah I happened to find a guy on eBay that sells a set of ten convergence strips for ten bucks. Not a bad deal!
I always make my own strips with the razor blade pieces -- probably because I'm cheap like that ;) They're super easy to do and they are very effective. Plus, you can make them as weak or strong as you'd like depending on how many blades you use and where you put them on the strip. Most of the time though, you really only need them to fix small problem areas like corners. If it's an entire side or a larger section of the image, it's usually a yoke adjustment.
Hi +dinkyflix! Any guide how to make own convergence strips from razor blade pieces?
echoing eveyone else... great informative video, presented simply and effectively I have a major job with a 9200 coming up and this vid definitely helps. thanks again
Great video Adam. Thanks for explaining this in so much detail. Excellent demonstration. I am about to start learning to do this myself so this has been really useful!
Awesome video. Very concise and well demonstrated . Always a pleasure to see a new video from you.
Freaking amazing! Thanks so much for the upload.
Awesome explanation! I heard "always keep one hand behind your back" just in case!
Adam, Thanks a lot for this video! I had no idea how to adjust the yoke and that was in fact the problem with my Star Wars 6100 video. The colors have been off since I got it 10+ years ago. Now the colors look perfect! Much appreciated!!!
Thank you for the detailed how to. Very well done.
Very well explained and informative! Thanks for sharing!
problem is gravity of the earth affects the end product. My experience is that you should do this level of setup where the game will actually live. A move of a few feet can change a perfectly executed convergence job. Awesome explanation as always!
Very helpful video man, thanks for taking the time to make it.
Thanks for the great upload Adam!
I learned a lot! Thanks! Gotta grab one of those signal generators
Thanks for the informative video. Very helpful and informative.
You have fantastic timing my friend! We just moved and several of my games have monitors that are showing problems. Now I'm a bit more confident. If only my garage wasn't freezing.... :D
Also Adam, you are a fantastic teacher! Thank you so much for taking the time to make these videos.
+Snow Kitty Well said! Adam is awesome! :-)
Thank you for the great video Adam. This video has given me the confidence to try and do this myself to a 25" Wells Gardner I have. I got a question for you though, you say at the start of the setting the purity part, "to center the red in the middle" but in my Wells Gardner K7000 manual it says "to first center the green in the middle". Does the colour you want to center in the middle depend on the monitor you have?
Very informative and useful. Thanks
Great video! Well done man, thanks!
Awesome info, thanks Adam!:)
Awesome lesson! Can't wait to tug on some yokes.
Thanks! Would love to see more on this. Found this through reddit's /r/coinop subreddit. It's very difficult to find any information about fixing CRTs today, most being on paper, probably thrown away at this point, little uploaded, and almost nothing in video format, usually just very small websites that have it sort of on the side, not a main feature. I have an old (late 70s, early 80s?) Sony Trinitron, heavy as hell, and while not the best TV, it's a Trinitron, one of the best lines of somewhat common (even the professional ones) CRTs. I can't get it to even turn on, and always needed something like this, /r/CRT and /r/CRTGaming ironically being useless, everyone saying to either throw it out or "take it to a professional" and "to not mess around with it"...meanwhile I'm learning electronics this year (getting more into the terms, what the parts actually do in detail, and actually putting stuff together) and many times more careful than the average person. It'd be perfect to work on, not worth much, and an interesting TV, and a good one to learn on. What would you recommend for someone just starting in repairing CRTs (Websites, etc.)? What tools should I look for?
I have many copies of Electronic Technician (and the /Dealer versions) and learn a lot through them, but they're a bit old and also sort of assume you know a decent amount already. They're from ~60s-70s. I think a few are from the 50s. They are sort of useful, though, and I bought a huge RCA repairman's box and some parts along with the magazines. I've been reading through what I have, but I should probably find more beginner stuff.
Great video, thanks for doing it.
How do I adjust the horizontal size if the adjust knob is not working? This is the knob panel that has all of the controls for the CRT.
Still fairly new to the hobby so I've lots of questions generally, but the one I am curious on is, you mention at 2:35 that you want to put the monitor on an isolation transformer. This is only when not working on the monitor in the cabinet right? That's something that is normally done in the cabinet's trunk/power supply, right?
Also, can you ruin a monitor by trying to degauss it too much/too many times?
Thanks Adam for the great videos (you should do more) and thanks for potentially answering my novice questions.
Hey! That's correct... every cab should have an isolation monitor inside so when working on a monitor inside the cab you should be all set. I may be mistaken but I don't believe you can degauss a monitor too many times. In fact many monitors have a degaussing coil built in and everytime you fire it up it degausses the tube before the raster starts.
Thanks for sharing. Very useful.
Awesome video, it really helped me with an old arcade monitor I had problems with.
I have a small question though, the colors looks crystal clear now but I have a problem with the vertical screen settings, when the control knob is turned all the to it's maximum the top part of the screen gets distorted, but when I find the "sweet spot" for the verticality it cuts off the bottom part of the image, do you know how to fix this??
Can any isolation transformer be used? Is there a specific one you recommend for testing arcade monitors?
I have a monitor that I rebuilt and brought it back from the dead... The problem is the picture is blurry. I hooked up another chassis and it still does the same thing (so its not the chassis). I also had someone connect a rejuvenator to it and the tube tests good (but its def the tube causing the blurry image). Can moving the yoke around help with a blurry image? It's the only thing left that I haven't done.
My crt is stuck on the color red when hook up my Super Nintendo via RGB scart. Could any of these solutions work?
I really appreciate the video. Certainly the best video I have seen so far. I am wanting to work on a 2000 Trinitron, but unlike your monitor the anode cap wire is very obtrusive and in the way. If my gloved hand brushes that does it mean death for me lol? And if so how should I deal with it?
That is a deep question: How does one deal with death? ;)
Qual o nome desse aparelho usado para fazer ajuste?
I've got a question , I cant get to my menu screen on area51 there is 2 buttons behind the coin machine one button dosnt work and the second resets the game , I want to get to my menu screen so I can calibrate my light guns . Can you help
Adam I miss you on TH-cam.
Trying to make the most of the summer. :) I'll be posting more videos once the weather turns.
Haha "losten" -- good video Adam
great video! thanks a lot
Nicely done :)
If you ever are gonna build the fix it felix, is it gonna be a video series?
Great video, Adam! I am still too frightened to work on monitors though.
I like the intro style. Sort of a "homage to Randy Fromm" arcade school. If only you put more VHS tape stretching and tracking problems :)
I know this is a late post but you can also use another monitor that has a working degause to degause a monitor sat next to it. I found this out when i used to run 2 SVGA 19 iinch CRT's together and one had a degause and the other did not. Whenever I degaused my main monitor the other monitor would also degause too. Strange I know but it worked. Great vid Adam and stop stealing Johns stuff lol.
I have a problem where blue and red are rotated (tilted). Any idea what could cause this?forum.arcadeotaku.com/viewtopic.php?f=4&t=29295
Amazing video!
Unrelated but I after watching you on Mikes Arcade, I was wondering if you were able to build me a small micro controller that would intercept the player one button. I would like the button to function as a start button but if held for 2 seconds send a signal for another button. What I am thinking is that I would like to map ESC to quit games in Mame if the button is held for more than 2 seconds. Thoughts?
+theboy181 Sounds like the old CoinUp design. You could hook up the coin output to the ESC input of your keyboard encoder.
th-cam.com/video/4SMIK6OR9J0/w-d-xo.html
thanks this is a great video, but i was wondering the biggest issue with a arcade monitor i have is the picture is slanted. do you know a solution?
The entire picture? Sounds like the yoke may need to be rotated a little.
It's interesting how necessary CRT monitors will always be for light gun and 8 bit gaming.
Looks pretty tedious, looking forward to your new pole position board.
Convergence rings on crt (blast city,not the corners,just a tiny red in the first 1/4 of the picture.
♡
how to adjust the focus if you cannot change it any further with the poti ment for it
I'm not an expert, but I've read that if the focus pot on the flyback doesn't do the job, then capping might.
If I personally brought my monitor to you, could you adjust it for me? Yesterday I drove 10 hours(round trip) to take it to a tv repair man that said he could fix it and the convergence is still off. I have a Wells Gardner k7401 in an MK2 machine. I replaced all the capacitors myself and nothing has changed.
If I personally brought my monitor to you could you adjust it for me? Friday I drove 10 hours round trip to take it to a tv repair man that said he could fix it and convergence is still off I have a Wells Gardner k7401 in an umk3 machine I replaced all the capacitors myself and nothing has changed
@@camronhernandez663 hey douchebag
@@lancecowburn1693 Takes one to know one...
26:22 - subtle Toy Story 2 reference?!
Thank you Thank you Thank you!...:)
How do you emit those patterns ? pc? thanks
www.mikesarcade.com/cgi-bin/store.pl?sku=TPG
Good one thanks Adam.
thanks for the vid!
Which test pattern generator is that?
+Stephen York craftymech.com/
amazing work!!!!!!!!!!! nice
Very informative.
Good job, nice explanation? 👍🏻
I have this beast to deal with. imgur.com/gallery/GLpXn The center is slightly messed up, but the corners could use the most help. Should I just get a technician to do this? Because it's kinda scary from it's size, I don't want to accidentally kill myself.
Convergence can be such a bitch!!!! Great video Adam!!!
if CRT maintenance isn't you're forte, you must be damned proficient in areas that are your forte.
You're a fantastic teacher. However I get extremely uncomfortable watching you move your bare hand very close to the 30,000 volts! You're making gestures and all. I would wear those rubber gloves at all times getting anywhere near that stuff!