Comments on: Checking And Replacing A Power Supply http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/ Fix The Game, Play The Game Tue, 03 Jan 2012 18:52:58 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Jonathan Leung http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-4196 Jonathan Leung Thu, 17 Mar 2011 19:38:06 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-4196 Trevor, Even though we might be able to get this power supply working, it's disappointing to see how far out of range it is. We would recommend lowering the +5 VDC line down to about 5.1 and the +12 VDC line down to 11.5. If you cannot get the power supply in this range then you might need to contact Happ about getting a new one. As for the positive/negative readings, it could be that you have your black and red leads mixed up either during your test (the black should be on the ground) or hooked up to your multimeter wrong. I wouldn't worry too much about it, just see if you can get the voltages around where we recommend. We have also featured your question on episode 23 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and good luck with your repair. Trevor,

Even though we might be able to get this power supply working, it’s disappointing to see how far out of range it is. We would recommend lowering the +5 VDC line down to about 5.1 and the +12 VDC line down to 11.5. If you cannot get the power supply in this range then you might need to contact Happ about getting a new one. As for the positive/negative readings, it could be that you have your black and red leads mixed up either during your test (the black should be on the ground) or hooked up to your multimeter wrong. I wouldn’t worry too much about it, just see if you can get the voltages around where we recommend.

We have also featured your question on episode 23 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and good luck with your repair.

]]> By: Trevor http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-3989 Trevor Sat, 26 Feb 2011 16:11:56 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-3989 I have an area 51/maxforce. I replaced the disk drive since it was bad and the power supply sounded bad so I bought one from Happ. The power supply I bought reads the +5 around +5.5 and the +12 around +11.7. thats as good as it gets. this sounds to far out of range for me. Also according to the diagram on the power supply what should be positive is reading negative and negative is reading positive?????? I am lost.....any suggestions would be highly appreciated. Trevor I have an area 51/maxforce. I replaced the disk drive since it was bad and the power supply sounded bad so I bought one from Happ. The power supply I bought reads the +5 around +5.5 and the +12 around +11.7. thats as good as it gets. this sounds to far out of range for me. Also according to the diagram on the power supply what should be positive is reading negative and negative is reading positive?????? I am lost…..any suggestions would be highly appreciated.

Trevor

]]> By: Arcade Repair Tips - Checking A Classic Power Supply http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-3515 Arcade Repair Tips - Checking A Classic Power Supply Thu, 13 Jan 2011 01:57:11 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-3515 [...] better way to go if you don’t want to fool with wiring that yourself. Check out our posts on Checking And Replacing A Power Supply and Checking A Classic Power Supply for more [...] [...] better way to go if you don’t want to fool with wiring that yourself. Check out our posts on Checking And Replacing A Power Supply and Checking A Classic Power Supply for more [...]

]]> By: Jonathan Leung http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-1077 Jonathan Leung Tue, 18 May 2010 03:06:25 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-1077 David, You asked us if this is a power issue and it sure sounds like one. We recommend checking your 5 VDC and 12 VDC on your power supply to make sure that both are giving you the correct voltages. You can also try checking the power at the board on the JAMMA harness to see if you're getting the same 5 VDC and 12 VDC there. Keep in mind that it's better to be a little high on these voltages than low so make your adjustments accordingly. If you continue to have problems after you have adjusted the power supply then it might be time to look at your board for problems. We have also featured your question on episode 11 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and good luck with your repair. David,

You asked us if this is a power issue and it sure sounds like one. We recommend checking your 5 VDC and 12 VDC on your power supply to make sure that both are giving you the correct voltages. You can also try checking the power at the board on the JAMMA harness to see if you’re getting the same 5 VDC and 12 VDC there. Keep in mind that it’s better to be a little high on these voltages than low so make your adjustments accordingly. If you continue to have problems after you have adjusted the power supply then it might be time to look at your board for problems.

We have also featured your question on episode 11 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and good luck with your repair.

]]> By: Jonathan Leung http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-1075 Jonathan Leung Tue, 18 May 2010 00:56:25 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-1075 Ste, We are curious as to what arcade game this is going into. Some of the newer style games use 24 VDC but typically have the 12 VDC and 5 VDC included as well. While we have never seen an arcade game that just uses 24 VDC, it is very possible that you have one in your possession. We recommend locating the pinouts for this game to see if they show the 24 VDC line and where it goes on the harness. It is also possible that someone installed the wrong power supply in your game. Should you need a new power supply, we recommend a standard switching power supply from <a href="http://www.therealbobroberts.net/" rel="nofollow">therealbobroberts.net</a>. These are very similar to the one we use in our <a href="http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/" rel="nofollow">Checking And Replacing A Power Supply</a> post. If you buy one and follow the instructions there you should be fine. We have also featured your question on episode 11 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and keep us updated on your progress. Ste,

We are curious as to what arcade game this is going into. Some of the newer style games use 24 VDC but typically have the 12 VDC and 5 VDC included as well. While we have never seen an arcade game that just uses 24 VDC, it is very possible that you have one in your possession. We recommend locating the pinouts for this game to see if they show the 24 VDC line and where it goes on the harness.

It is also possible that someone installed the wrong power supply in your game. Should you need a new power supply, we recommend a standard switching power supply from therealbobroberts.net. These are very similar to the one we use in our Checking And Replacing A Power Supply post. If you buy one and follow the instructions there you should be fine.

We have also featured your question on episode 11 of our Q&A podcast. Please listen to it for more of our thoughts on your question. Thank you for your question and keep us updated on your progress.

]]> By: David http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-1044 David Fri, 30 Apr 2010 04:23:33 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-1044 Hi, I'm running a Neo geo 1-slot through a cabinet, and it works perfectly, except sometimes, often when the game resets in attract mode, the picture goes off, with the sound/game still running fine, and only comes back on again when I unplug the whole cabinet and then plug it back in. Do you think this is a power issue? The cutout also happens when switching between the main game and continue screen, or during the intro of Last Blade (which is a bit visually complex). The MVS and cartridges all work perfectly, as I've had them running in another cab for hours at a time. Any help on this would be great, thanks! Hi, I’m running a Neo geo 1-slot through a cabinet, and it works perfectly, except sometimes, often when the game resets in attract mode, the picture goes off, with the sound/game still running fine, and only comes back on again when I unplug the whole cabinet and then plug it back in. Do you think this is a power issue? The cutout also happens when switching between the main game and continue screen, or during the intro of Last Blade (which is a bit visually complex). The MVS and cartridges all work perfectly, as I’ve had them running in another cab for hours at a time.

Any help on this would be great, thanks!

]]> By: ste http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-1019 ste Thu, 22 Apr 2010 12:09:14 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-1019 hi guys, just discovered your website. excellent info you have here. anyway, ive got a switching power supply for arcade use, but its +24, +24, GND, GND, FG, AC(L), AC(N). my question is, how do i wire up this power supply since there are no 12v or 5v?? thanks guys. hi guys, just discovered your website. excellent info you have here. anyway, ive got a switching power supply for arcade use, but its +24, +24, GND, GND, FG, AC(L), AC(N).

my question is, how do i wire up this power supply since there are no 12v or 5v??

thanks guys.

]]> By: Jonathan Leung http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-211 Jonathan Leung Sat, 02 Jan 2010 01:54:32 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-211 Michael, We would say that your old power supply was is pretty good shape and could probably be put back in place of the new one. This problem sounds more like a monitor issue. We would definitely check the wiring going from your PCB to your monitor and maybe tap on you monitor frame with the game on to see if it generates the vertical lines you've described. If you get the vertical lines, check for cold solder joints on your chassis. We have also featured your question on episode 3 of our Q&A podcast. Please listen to it for more of our thoughts on your issue. Thank you for your question and good luck with your repair. Michael,

We would say that your old power supply was is pretty good shape and could probably be put back in place of the new one. This problem sounds more like a monitor issue. We would definitely check the wiring going from your PCB to your monitor and maybe tap on you monitor frame with the game on to see if it generates the vertical lines you’ve described. If you get the vertical lines, check for cold solder joints on your chassis.

We have also featured your question on episode 3 of our Q&A podcast. Please listen to it for more of our thoughts on your issue. Thank you for your question and good luck with your repair.

]]> By: Michael Cruz http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-184 Michael Cruz Fri, 18 Dec 2009 07:09:35 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-184 I have a have a Neo Geo that works ok for most os the time,sometimes it ,goes to verticle lines. My buddy who works on these things looked at it and said I needed a new power supply as my 5v was too high at 5.5 volts.My 12v was just over 12. Someone converted this unit to a peter chow power supply, so I bought the same one to replace it. I can adjust it to 5.1 volts, but the 12v won't come lower than 15.2 volts. I assume this is a bad power supply. The problem is the samet, except it's only good for about two minute before it goes to verticle lines.Should I go back to a HD pc type power supply? I have a have a Neo Geo that works ok for most os the time,sometimes it ,goes to verticle lines. My buddy who works on these things looked at it and said I needed a new power supply as my 5v was too high at 5.5 volts.My 12v was just over 12. Someone converted this unit to a peter chow power supply, so I bought the same one to replace it. I can adjust it to 5.1 volts, but the 12v won’t come lower than 15.2 volts. I assume this is a bad power supply. The problem is the samet, except it’s only good for about two minute before it goes to verticle lines.Should I go back to a HD pc type power supply?

]]> By: Jonathan Leung http://www.arcaderepairtips.com/2009/07/22/checking-and-replacing-a-power-supply/comment-page-1/#comment-128 Jonathan Leung Tue, 27 Oct 2009 14:16:24 +0000 http://www.varcadeentertainment.com/arcaderepairtips/?p=336#comment-128 We received an email question about a Point Blank arcade machine that does not turn on at all. Here was our response: The best place to start on this problem is to make sure you have power coming in from the wall. If you saw the video on Checking And Replacing A Power Supply then you should be familiar with using a multimeter. Take a multimeter, switch it to VAC mode and check the AC voltage coming into the power supply. It should read around 115, if it's a little high or a little low that's fine. If you are getting good AC readings, check your DC voltage. There should be slots on the power supply for 12 VDC and 5 VDC. These are typically indicated by yellow wires and red wires respectively. Switch your multimeter to VDC and check these slots. If the voltage is too high or too low, use the adjustment knob to change it. If you get no voltage then you probably have a bad power supply. Now this problem could be indicative of a bad board or bad monitor. If you check your power supply and everything seems good you might move on to some of our other videos on monitors. Thanks for watching our videos and good luck with your repair. We received an email question about a Point Blank arcade machine that does not turn on at all. Here was our response:

The best place to start on this problem is to make sure you have power coming in from the wall. If you saw the video on Checking And Replacing A Power Supply then you should be familiar with using a multimeter. Take a multimeter, switch it to VAC mode and check the AC voltage coming into the power supply. It should read around 115, if it’s a little high or a little low that’s fine.

If you are getting good AC readings, check your DC voltage. There should be slots on the power supply for 12 VDC and 5 VDC. These are typically indicated by yellow wires and red wires respectively. Switch your multimeter to VDC and check these slots. If the voltage is too high or too low, use the adjustment knob to change it. If you get no voltage then you probably have a bad power supply.

Now this problem could be indicative of a bad board or bad monitor. If you check your power supply and everything seems good you might move on to some of our other videos on monitors. Thanks for watching our videos and good luck with your repair.

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