Multicade Help

kmtgod

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Total newbie here. I bought a Multicade 48 in 1 about three years ago. Has worked great ever since and gotten a decent amount of play on it. Well last week, I went to turn on so my son could play and it appears the monitor may have given out? The cabinet lights turn on and I hear a few noises sounding like it is going to startup. A couple of times the screen flickers a little, other times it will just stay inactive and black. Will replacing the monitor be an easy thing? Is there something else I could be running into issue wise? I have sent an email to the seller, but havent heard back and know this is a great informational site so thought I would check here. OTherwise thinking to post on Craigslist to find someone who can fix that I can pay. Thanks for the help in advance.
 
where are you located, might be someone here who is local to you?

what kind of monitor do you have in there?
 
Not sure what type of monitor as I am not very technical. I am located just west of Milwaukee, WI. I did upload pic of cabinet and monitor if this helps. Again, I am assuming it is the monitor as that is what is not turning on. I opened back of cabinet and do not see any loose wires or anything from what I can tell.
 

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Thanks everyone for helping me out on this considering all I know how to do is play the games, nothing to do with the backside and insides. IT is true, there are no sounds at all when I turn it on. And I have left on so it were to go past the initial load up stage when it gets to the game selection screen. I have included a couple of pics of the back inside with boards and tube. hope this helps.
 

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Since you are not getting any sounds, check the 48-in-1 board for the green lights (LEDs) to be showing. You may need to check your power supply for the +12 and +5 volts. (black, metal, rectangular part with all the wires coming out of it/in your picture) If the power supply is not giving close to that, you may need to adjust the voltage knob on your switching power supply. I have a 48-in-1 that did the same thing. The Power supply was not giving it exactly what it wanted. If I adjusted the voltage knob slowly back or forth, it would come back on. For some reason that power supply would do that periodically. Hope this helps, and it is not your monitor.
 
Would it be this part of the insides? kind of looks similar. It does say WG1467784 twice on it, if that is anything. Looked that up online and didn't pull up anything.
 

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When you power the machine down, do you see the display collapse into a little dot, like when you used to turn off a TV back in the day? If so, I'm afraid your 48 in 1 board has given up the ghost, provided your power voltages are still correct.

Your monitor should be OK if you have raster (screen glow)
 
ok; both when I power it up and power it down, I dont get anything on the screen. I understand what you were saying "Smalltown" about it collapsing into a dot like old TV screens, but I am getting nothing on the monitor at either time.

I have attached a pic of what I assume is the power supply, and I am not seeing any flashing LED lights on the 48in1board when it is turned on. Where would those normally be? I assume you are saying with the voltage knob just turning it with a screwdriver? And this would be with unit turned off I assume as well? Thanks all.
 

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Don't turn that knob without a volt meter, to verify what voltage it is putting out. Turning it to high can damage your board.

Mike
 
ok lets test basics here..


do you have a digital multimeter?( volt meter) or know someone who does?

If not, go buy one. A cheapie can be had at harbor frieght for like $10.


with the game on check for 120vac at the "ac" terminals on the power supply

next, set the meter to dc volts....

stick the black lead on the "gnd" terminal, and the red on the +5 terminal. WHat is your reading?
next stick black on gnd, and red on the +12. what is your reading?

ALso, at the power cord going to the monitor, backprope it with the meter, check to see if you have 120vac going to it.


no flashing leds on the multiboard make me suspect a board issue or power supply issue, but id expect a flash or dot or something on the monitor
 
That looks like an older switcher, so I'd expect it died and is your problem...
 
...I am not seeing any flashing LED lights on the 48in1board when it is turned on.

I think Mod is on to something... sounds like your power supply has died.

+1 on you buying a multimeter so you can check for 120v AC on the inputs of the power supply and for +5v on the output. If you don't have the AC, check fuses/switches/interlocks/power cable/etc..., if you do but don't have 5v out then replace the power supply. It's easy to do.

RJ
 
So I think I will go with replacing the power supply then since that seems to be the main thought, plus my seller got back to me and thinks it could be that too. If the power supply went bad, my marquee lights would still light up correct? I assume so, maybe based off being plugged in.

So is switching out the power supply easy to do, with me having no electrical experience? I assume I would just need to make sure unit is powered off and unplugged. Does anything else need to be secured or grounded for my safety? With the power supply only costing around $30, I think I will just do that, and if that is not it and not needed, I could always resell it on ebay for a small loss. Thanks again all for the help, hopefully this will be the answer.
 
A screwdriver is all you need to replace the power supply. Just make sure you connect the wires to the same places on the new power supply...
 
You should check voltages before you go replacing parts. See what your current power supply is doing now. I definitely believe that it has failed, but you should still check it - it takes seconds to do.

Also, if you don't have a meter, you should really get one, so you can adjust the 5v on your new power supply.

-Ian
 
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