How To: Remove, Clean, And Replace Socketed ICs, Eproms, And Mask Roms On An Arcade PCB
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- čas přidán 17. 07. 2011
- I received an email from a YTuber who what having some problems with his Street Fighter 2 Pcb and decided I would make this video to help him or anyone else who may be having arcade board trouble. From time to time, the socketed ICs, Eproms, and Mask Roms on an arcade pcb will lose contact with the sockets they are in which will inturn cause glitches in graphics and freezing of game ect. Sometimes this problem can be rectified by just removing the chips, cleaning the legs and then reseating them. This isnt a 100% sure thing fix for all problems but if something strange starts happening with your arcade game, try this first before getting out your soldering pen and poking around. Hope this helps.
- Hry
You literally made me save $200 for a new board I was about to purchase because some EEPROMs were showing errors. I just followed the instructions of your video and everything went back to normal. Thank you!
This video saved me a lot of time and money with my Golden Tee 99' Arcade Machine (Original Arcade Unit, Not the Arcade 1up Version). I had distorted graphics on my screen, after running a full board test it informed me that my machine's GRMC_3 chip was bad. I removed the graphics chip from the motherboard per the instructions from this video, unfortunately during the process I did bend a couple of the legs on the chip, however, I was able to straighten them back out and get the chip correctly back onto the motherboard and once I fired the power back on my arcade unit started working better than ever. I did end up buying a set of tested chips and an extra motherboard (tested as well) just in case I need it for the future as parts for my Golden Tee 99' as it is a relic and parts are somewhat hard to come by anymore. But, as for now it is working great again thanks to Luke!
On the gold edge connectors, I would not use sandpaper. I would use a pencil eraser. I works very well and you are not going to cut any traces. Once completed you can lightly brush off the excess eraser material with a dab of alcohol on Q-Tip
^^^
Fiberglass pen works ok too
Luke, you absolutely do not want to sand the JAMMA connector. You can use isopropyl alcohol and a Q-Tip to clean the connections. If the JMMA connector is REALLY nasty, you can add solder to the connections, then use braid to wick it off. This will remove dirt and fill in any scars or cracks. When shopping for PCBs, I always avoid buying boards that have sanded JAMMA connectors.
I don't own a cab or arcade boards but love watching these videos from Luke. Interesting stuff, man.
Awesome Vids & Bubble Bobble boards. I bought a Bubble Bobble Arcade Machine from an Arcade back in 1995. It's a Real Taito board, and was a Fun Restore Project. My buddy Bill knows how to Sodier boards better than Me, so we've kept BB working all these years. I was stationed in Japan for a year, and had Many Fun Times living in the Yokohama/Tokyo Bay Area.
Nice video Luke, and very helpful for those new to the hobby. I remember my first time pulling out EPROMS from some of my CPS2 boards to have the Phoenixed. I was pretty afraid of bending/breaking the pins but with a little time a patience all went well.
Legit, just what I was looking for - although not for an arcade machine. However, good information nonetheless as it's applicable to a multitude of electronic devices. Thanks!
Same here, 9 years later! Have a legacy device that still runs DOS 6.22 and needed to replace a socketed IC to get it working again. In 2020 this vid still rocks!
lovin the arcade vids man! picked up my first machine not too long ago, a pac-man converted to a super pac, with a ms. pac board inside lol. been a lot of fun cleaning it up and restoring it.
Great tutorial as always! Luke is awesome! he has the best videos on CZcams for anything video game related and arcade related! I would have been scared to even try this on my own, but with this video tutorial, it makes it look really easy! I wonder how many problems are fixed with this....like how often games are glitching over dirty contacts
Really cool video there Luke, thanks for this! Might even come in handy soon :)
Thanks a bunch. This saved my Centipede game and I only bent a couple of pins. Not bad for a first time. I used a big brick-type erasers to clean the pins and it works great now.
So DIY, so handy, so resourceful. I love you.
awesome man. very handy video for ppl who dunno how to clean and repair the old jamma boards
Very helpful Luke. Thanks for this.
Good as always luke!
Use Isopropanol or 2-Propanol to clean. Its 99% pure alcohol and doesnt leave residue on the metal. Dip cotton swabs in the Isopropanol and just rub them against the metal. It will clean it and not damage it. Its the best way to clean electronic parts.
I use a glasfiber pen to clean legs and connectors - great for the job.
Hi Luke, thanks for the video. Have you done one about writing to EPROMs, and where do people go to get that code for a particular EEPROM
Great video Luke.
sweet vid bro, the never ending knowledge of lukes brain =D
@NeonGenesisPlatinum the pin, is only 1 connection, you can do inside and outside of the pins, to clean as much surface area as possible, but the outsides most of the times should do the trick. do all the pins, the two rows. both the inner sides of the pins and the outer sides.
@GrynHelix No, no, that was two months ago. He's working on HAL 9000 now.
Great work, Luke :D
Sweet, hopefully it's that easy on my pinball machine display controller board. And yeah!!! Double Dragon. That mofo ate a lot of my money as a kid lol.
that being said I'm so gonna get into Arcade gaming ^^
thanks, very helpful !!
Speaking of dead boards in a previous video you talked of sending them out for repair? How often have you manually inspected a boards components, is it hard or does it just take a lot of time and concentration? Just asking since I have a possibly dead Intellivision and was wondering how much time I'd be dedicating to circuit testing.
Thanks for the vid!
Using a chip insertion tool will avoid mismatching the pins to the socket like that, just for info.
Some real good info there man, nicely done ^_^
What's up with that DD2 anyway?
Thanks for the video...any suggestions on what i can do if the legs are broken off in the socket? Thanks
You could solver the trace directly to the board
@lukemorse1 you really should get a chip puller, they can be found in some computer repair kits. they let you get under both sides of the chip, and pull them straight up, I've used them on some Commodore 64 computers, to save the SID chips.
gr8 video, thx Luke
What about the inside edge of the chip's legs, do you do them as well??
It reads both sides no?
I have a broken pin from corrosion in just one of the sockets.😢 Is it possible to repair one pin or do I have to replace the whole 10pin socket?
When you remove a eeprom the game will not erase??? And when you put it back on do I have to press the test button before I trun ON the Jamma board??
nice info sir.
could you potentially modify boards by using roms from 2 different games basically turning one version of the game to another eg street fighter 2 to say street fighter 2 champion?
Can I buy a new eeprom and replace an old one in a pcb board?
I have a Road Riot that is Common Ram bad on the test, also no sound. Could the Yamaha eprom be the cause? Or does that register under something else
I'm going to try to upgrade my mortal kombat 2 to mortal kombat 2 plus, never done this before, wish me luck.
Hello Luke: I was cleaning an eprom but a leg was sensitive so I blow it accidentally; and want to ask you how could I repair it; I still have the leg; the board doesn't work and I thinks is because of that, it shows a palid white/grey screen with distortion and two small vertical blue/darkgrey stripes at the left side of the monitor. I don't have experience but I thought I could use some solder or something. I appreciate the advice you could give me in advance.
Going to try to get mortal kombat 2 plus roms for my arcade.
hi luke im from morocco
can i change eproms in cps1 the one with a b c pcb like street fighter 2 can i change it to another game cps1 like knights of the round ... by changing roms on eproms the one with sockets hope you understand me sorry for my english
fun fact: you can finish all of double dragon with only the elbow move. The entire game. You're welcome, internet.
LUKEMORSE1, some arcade games use MASKED ROM chips, any reasons why they use MASKED ROM chips and not EPROM chips?
Do you sell these chips for slot macbines?
did someone teach you to do this kind of stuff or did you teach yourself?
Nicccccccce.
I find it useful to take a picture.
@codenamegamma Cheers bro!
@lukemorse1 Thanks mate!
and 2 months later Luke built skynet
35,500th view!
Sand paper! That is not good. And 120 grit it too rough. This will make more problems in the future.
So what's your advice? I'd like to know how to make pins on chips look shiny and new again.
@@kelpkelp5252 TranX generally works pretty well for the IC pins. A quick dip and then rinse with warm water does the trick. Let them air dry and you can blot them with paper towel to speed up the drying.
@@GenerationXT Thanks! I'd forgotten I'd made this comment.
@@GenerationXT Also, what is TranX? Google is giving me fishing related results.
@@kelpkelp5252 For future people -- that is Tarn-x, not Tranx.
What ever happened to people using grounding straps. I sure would not want to buy a board from you
your repair vids make me cringe .. before breaking legs off of DIP packages by wedging a screw driver between the socket and the component test with a multi-meter... it you don't have a meter walk away from the board and let someone with a clue have a look. If you are removing DIP packages get a chip puller or something that is long and flat.. lift the whole chip together otherwise you are going to break legs off. Sand paper! WTF!! IPA is more than enough. FFS
IPA?
@@kelpkelp5252 Isopropyl Alcohol