Donkey Kong, Jr. restoration help needed

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I recently scored a highly trashed DkJR machine and have three questions I need assistance with to bring this baby back:
1. I had a cap literally fall of the board (see pic)Can somebody point me to the proper replacement part and detail how to properly solder it to the proper pads? Details like you are talking to a 3rd grader would be appreciated!
2. Power supply. Please advise on how to properly meter and check voltages on an original Nintendo power brick.
3. The easy one- did the cabinet originally have leg levelers?

I'm a noob and am learning- please be nice!!!!

Thanks guys!
 

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Try to help you out a bit.

First off your questions involve a lot more that can be explained in a simple reply.

Look around for some pinned topics or use the search feature on the forums. This is how I learned #1 & 2. Or even YouTube is a great place to check.

Yes to #3.Check our arcadeshop.com or mikesarcade.com for parts and prices.

Hope this helps a little.
 
I recently scored a highly trashed DkJR machine and have three questions I need assistance with to bring this baby back:
1. I had a cap literally fall of the board (see pic)Can somebody point me to the proper replacement part and detail how to properly solder it to the proper pads? Details like you are talking to a 3rd grader would be appreciated!
2. Power supply. Please advise on how to properly meter and check voltages on an original Nintendo power brick.
3. The easy one- did the cabinet originally have leg levelers?

I'm a noob and am learning- please be nice!!!!

Thanks guys!

1. Looks like you had a transistor fall off, not a cap. The easiest way to tell is that a cap typically has two leads while a transistor has three. Q8 is a c1384, which appears to be obsolete. Caps are easy to replace but transistors get a little trickier as there are more specs to match. I'm not great with finding substitutes so hopefully somebody else can chip in with some advice on what transistor you need to put in there. You'll need to remove the three legs, clean the solder out of the holes, and put a new transistor in its place.

2. Here is a thread that lists the pinouts of the Nintendo power supply. This assumes you have the original in there and not a replacement switching PS. You put the black lead of your meter on one of the ground pins (in most cases there are three ground pins in a row, use the middle one to avoid causing a short) and then carefully touch the red probe to the other pins to test each output. The +5 is the voltage that is crucial to the board operations, you want that as close to +5 as you can get (+/- .25 volts is usually OK).

https://forums.arcade-museum.com/showthread.php?t=112055

3. My DKJr does not have leveling feet, it just sits on the wooden box at the bottom of the cabinet, and that wood box on the bottom of the cabinet often takes a beating. It should have two wheels on the back though, so you can tip it to an angle and then roll it around.
 
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