Back in the 1990s I helped a friend silk screen some small, simple circuit boards he had designed so that a customer could do an RGB video hookup from commercial video game systems to several Mitsubishi 35" CRT TVs. Worked like a champ.
@@12voltvids I'm sure they were, or he wouldn't have done it, he had been fixing TVs at his dad's TV shop since age 10 or so. His dad never really got the hang of the new transistor tech back in the early 1970s.
This chassis reminds me of some Hantarex video monitors a friend used in arcade games around 1990. Italian made? I got a couple and stripped them, they just tossed the games when damaged or obsolete
LCD sucks. I was looking at a vintage game that the owner had put an lcd in. He was asking 1000 so I offered him 400 max and the reason was that was all it was worth. I could buy a brand new replica at the local store for 450 if i wanted a stand up Pac-Man with an LCD. He said the monitor had burn in and my reply was exactly. And that is why it was worth 1000 or more in that condition. But now it is completely ruined and then I walked away.
One of the high schoolers that worked in the shop after school called it "the. Cobra" after he was messing around with an old tv out back ripping it apart to throw out. The tube had a charge in it and he got bit. We all were rolling on the floor laughing when he said the "cobra bit me". It stuck. From that day on the HV cap was know as "the cobra"
Speaking of the CRT picture tube, I've seen YT users knows how to salvage the good CRT picture tube along with flyback transformer from 19" TV to Arcade Game Console and got it working again, and I find it is a brilliant idea to resurrect the Arcade Console for anyone who is playing the games at home or at the game store. For example: any Funai made 19" CRT TVs that I find that has a good picture tube along with the comments where they left on the curb saying "free" or getting TVs for free from Yard Sale, Garrage Sale, Estate Sale, and/or from flea market, I would grab it and take home to my repair shop and then, restore the Arcade Console and get it going again.
I fixed video games for a good 20 years, pinballs jukes you name it. Those were very reliable and mostly vertical problems due to caps. The 47 uf 250 v is high failure. Not much dust in there. The monitors went down hill later with multi scan vga and switching regulators. Your one is linear.
@@12voltvids i never used the kits. I would just change the caps needed. You could fix em quick. I kept the wires connected. Just zipped out a cap or two.shove the board back in and go to next machine or call. . .
@@markanderson350 This was brought in with a bag of parts. I changed them and was paid for the work. I didn't trouble shoot as it was working. Had it been mine I would have just changed the bad cap.
Hrrrrrmmm maybe we should start a business making capacitors that replace themselves at end of life. The surface mounted ones can replace themselves with two appropriate ones in parallel so they don't have to do it again for a longer time. lol
I would assume the CRT is still good because of the trouble of fixing the chassis? I haven't watched it all yet, but it would be nice to see it working once it's back in the game console or whatever. Interesting stuff!
@@12voltvids thanks. I hope he lives longer and then goes peacefully. I just lost someone close to me today. My auntie passed away from dementia and alzhimer dease. She also had C.o.p.d so she is in a better place now.
39:06 why did you make that loop/circle from that high voltage cable? What I understand the electronics, by doing this, you simulate a simple coil behaviour. But why?
Back in the 1990s I helped a friend silk screen some small, simple circuit boards he had designed so that a customer could do an RGB video hookup from commercial video game systems to several Mitsubishi 35" CRT TVs. Worked like a champ.
Not hard but tv needs to be cold chassis type
@@12voltvids I'm sure they were, or he wouldn't have done it, he had been fixing TVs at his dad's TV shop since age 10 or so. His dad never really got the hang of the new transistor tech back in the early 1970s.
This chassis reminds me of some Hantarex video monitors a friend used in arcade games around 1990. Italian made? I got a couple and stripped them, they just tossed the games when damaged or obsolete
Yes, the MTC and Polo's were hugely popular, usually fitted with Italian 'Videocolor' tubes which always went soft, but lasted forever!
Great to see another Arcade CRT saved and not replaced with a garbage LCD
LCD sucks. I was looking at a vintage game that the owner had put an lcd in. He was asking 1000 so I offered him 400 max and the reason was that was all it was worth. I could buy a brand new replica at the local store for 450 if i wanted a stand up Pac-Man with an LCD. He said the monitor had burn in and my reply was exactly. And that is why it was worth 1000 or more in that condition. But now it is completely ruined and then I walked away.
Love how you fix CRTs
Having played with flybacks in a hobby project, I find it funny that the HV cord and the suction cup is called 'cobra'. But yeah, it can bite!
One of the high schoolers that worked in the shop after school called it "the. Cobra" after he was messing around with an old tv out back ripping it apart to throw out. The tube had a charge in it and he got bit. We all were rolling on the floor laughing when he said the "cobra bit me". It stuck. From that day on the HV cap was know as "the cobra"
Speaking of the CRT picture tube, I've seen YT users knows how to salvage the good CRT picture tube along with flyback transformer from 19" TV to Arcade Game Console and got it working again, and I find it is a brilliant idea to resurrect the Arcade Console for anyone who is playing the games at home or at the game store.
For example: any Funai made 19" CRT TVs that I find that has a good picture tube along with the comments where they left on the curb saying "free" or getting TVs for free from Yard Sale, Garrage Sale, Estate Sale, and/or from flea market, I would grab it and take home to my repair shop and then, restore the Arcade Console and get it going again.
Many were interchangable.
That machine used to be in one of Jamie Davis trucks didn't it?
wells k4900, one of the better monitors from the 80's
I fixed video games for a good 20 years, pinballs jukes you name it. Those were very reliable and mostly vertical problems due to caps. The 47 uf 250 v is high failure. Not much dust in there. The monitors went down hill later with multi scan vga and switching regulators. Your one is linear.
Yes I know and must be run on isolation transformer
@@12voltvids thats a Wells Gardner chassis. Yes the transformer is in the game. I doubt half the caps are bad and yes, that main filter, never dies.
@@markanderson350 I am aware of the chassis model as I had the repair kit for it.
@@12voltvids i never used the kits. I would just change the caps needed. You could fix em quick. I kept the wires connected. Just zipped out a cap or two.shove the board back in and go to next machine or call. . .
@@markanderson350 This was brought in with a bag of parts. I changed them and was paid for the work. I didn't trouble shoot as it was working. Had it been mine I would have just changed the bad cap.
Hrrrrrmmm maybe we should start a business making capacitors that replace themselves at end of life. The surface mounted ones can replace themselves with two appropriate ones in parallel so they don't have to do it again for a longer time. lol
I would assume the CRT is still good because of the trouble of fixing the chassis? I haven't watched it all yet, but it would be nice to see it working once it's back in the game console or whatever.
Interesting stuff!
Well the console isn't here
Can you fix my crt board?
How is your cat doing? Did he ever have his surgery? That's all I have.
No they wouldn't do surgery. They did chemotherapy. Hard to say how long he will last :(
@@12voltvids thanks. I hope he lives longer and then goes peacefully. I just lost someone close to me today. My auntie passed away from dementia and alzhimer dease. She also had C.o.p.d so she is in a better place now.
39:06 why did you make that loop/circle from that high voltage cable?
What I understand the electronics, by doing this, you simulate a simple coil behaviour. But why?
I think it's just to take up some slack. The inductance is negligible at these frequencies.
I would like to get my canon cam corder fixed could you help me?
Won't be worth fixing. None of them are.
@@12voltvids It is a more modern one
The one I have is from 2003 and won’t turn on after hooking it up to a bench power supply
What about b+ side of affairs?
It was brought in just for a recap and was working when removed.