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xcaliber
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« on: February 01, 2015, 08:51:56 pm » |
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So I traded a game for a Frogger Cocktail. The guy said it needed some work and he believed it may be the monitor. The monitor is 100v. I would like to plug it up and see what happens, but are there any precautions I should take beforehand?
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« Last Edit: February 01, 2015, 09:14:50 pm by xcaliber »
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xcaliber
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« Reply #1 on: February 01, 2015, 11:19:50 pm » |
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xcaliber
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« Reply #2 on: February 01, 2015, 11:44:20 pm » |
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I turned the game on and I can coin up, but there is no picture on the screen. There is a crazy buzzing noise and no picture. I have sound and the game responds to the controls. I'm binging the hell out this, but I haven't found anything on 100v monitors yet.
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iankellogg
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« Reply #3 on: February 02, 2015, 09:47:42 am » |
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If the monitor is truly a 100V monitor (which one is it? sanyo?) you need to make sure the isolation transformer is also a stepdown to 100V. under no condition can you plug this into your wall, you will damage the monitor and hurt yourself if you touch it.
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DarkStar
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« Reply #4 on: February 02, 2015, 12:17:23 pm » |
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Most isolation transformers are not exactly a 1:1 ratio, so hook up one side to your household voltage (120v ish) and measure the other side. If the voltage is higher, flip the isolation transformer around and check it again. I have a few transformers and generally with 120v in I get 110v out, that is close enough to 100v to make the monitor function properly.
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--Chris ^_^
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iankellogg
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« Reply #5 on: February 02, 2015, 01:06:49 pm » |
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it looks like it already has the transformer installed, so as long as you connect to it properly you will be fine to give it a try but probably nothing will happen if the monitor is bad. Without seeing the PCB for the monitor I have no idea which it is. Once you know what monitor it is we can work on fixing it.
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xcaliber
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« Reply #6 on: February 02, 2015, 05:55:27 pm » |
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Ian and Darkstar, Here is a pic of the tube ( I'm finally able to identify some components correctly Ian, LOL). I know it may not help since it is not the monitor PCB, but I thought I would throw it out there. The number is S-97335-P. I did find a thread that was on this forum that covered a similar issue. I have checked the fuses that are by the transformer and the one on the PCB, they all check out ok. If you guys can't identify the monitor by the tube I will pull the monitor. DarkStar, I have tested a switching power supply, but never a transformer. Would you mind telling me what contacts to test?  |
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iankellogg
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« Reply #7 on: February 02, 2015, 06:42:16 pm » |
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If you look at page 86 in this manual http://www.arcade-museum.com/manuals-videogames/F/Frogger.pdf you will see the wiring diagram for the cabinet. over on the left side you will see what is labeled 150 xfmr, that is the isolation transformer. There is a 115V tap that goes to the wall plug and then on the other side there is a 100V tap that goes to the monitor and a 115 tap that goes to the marquee light (which may not be in the cocktail) If you put your multimeter on AC mode you should be able to measure the voltage at any point on the tap. but remember that you will need to measure it with the black lead on what the manual calls 0V for either side. Most likely the transformer is completely fine and the monitor blew a fuse. Have you tried to plug the whole cocktail in and see if the game will coin up? |
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xcaliber
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« Reply #8 on: February 02, 2015, 06:46:29 pm » |
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The game will coin up and play, but no screen. There is no tube glow either.
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iankellogg
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« Reply #9 on: February 02, 2015, 06:51:50 pm » |
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Yeah it probably blew a fuse. Time for a monitor repair!
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xcaliber
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« Reply #10 on: February 02, 2015, 07:04:43 pm » |
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Which one do you think it is? I could only find four of them and they all checked out ok.
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iankellogg
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« Reply #11 on: February 02, 2015, 07:06:57 pm » |
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Its going to be on the monitor im sure. You will have to remove the monitor from the cab to take a peak at it.
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xcaliber
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« Reply #12 on: February 02, 2015, 07:17:59 pm » |
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I will check it out. When you say monitor repair, does it need a cap kit or something more serious, or both
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iankellogg
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« Reply #13 on: February 02, 2015, 07:19:02 pm » |
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probably both.
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xcaliber
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« Reply #14 on: February 02, 2015, 07:29:13 pm » |
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Well I just got my solder iron today so now it is time for a cap kit and whatever else I need
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