jessiewonka
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« on: June 20, 2015, 06:29:09 pm » |
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I have a Dragon Blaze PCB that's giving an EEPROM error on startup. It played fine for a while, but eventually freezes and restarts. Sometimes after turning on it just gives a bunch of frozen blue vertical lines and has to be turned off and on. Someone with a Gunbird 2 PCB had the same error - http://shmups.system11.org/viewtopic.php?f=6&t=45866. The hardware is probably pretty similar, but I don't see the same EEPROM chip on the board that they suggested he buy, which did fix it for him. http://jessiejohnson.net/arcade/2015-06-17-dragonblaze.jpg
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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iankellogg
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« Reply #3 on: June 20, 2015, 09:19:03 pm » |
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Yep the atmel one will work just fine. But that is coming from china so thats like 3 week delivery, mouser is like 2 day delivery.
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jessiewonka
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« Reply #4 on: June 20, 2015, 09:23:40 pm » |
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Yep the atmel one will work just fine. But that is coming from china so thats like 3 week delivery, mouser is like 2 day delivery.
I saw "factory lead time: 4 weeks" but they do seem in stock. Fingers crossed that a .75 cent part will be the fix! Thanks again Ian. Hope I don't botch such a tiny solder.
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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iankellogg
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« Reply #5 on: June 20, 2015, 09:25:07 pm » |
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do you have solder wick and what soldering iron do you have? it isn't a dip chip and if you haven't done surface mount before you might want to slow down a bit and do some research.
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iankellogg
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« Reply #7 on: June 20, 2015, 09:31:56 pm » |
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You can buy solderwick from mouser. you will want noclean type and fairly thin. Do you have a thin chisel or thin conical tip? The iron should be okay.
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jessiewonka
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« Reply #8 on: June 20, 2015, 09:34:39 pm » |
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Yeah I may as well get solderwick there -- noclean, fairly thin. Mouser has 4 pages of solderwick! I have the tip it came with and this one - http://www.amazon.com/gp/product/B00DK2D0MU
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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jessiewonka
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« Reply #10 on: June 20, 2015, 09:49:37 pm » |
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I'll get this and get a no-clean elsewhere to try them both.
Already watching tutorials. And I'll practice on an old board first.
Thanks again Ian!
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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iankellogg
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« Reply #11 on: June 21, 2015, 11:00:04 am » |
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You'll only need one. The no-clean is nice because it won't leave behind a sticky mess but it doesn't work quite as well as rosin does. When you are done you will want to try to wash it off with alcohol or something.
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jessiewonka
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« Reply #12 on: June 27, 2015, 06:22:19 pm » |
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Noooo... What I needed was 93LC56/SN. Ordered.
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« Last Edit: June 27, 2015, 06:36:28 pm by jessiewonka »
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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jessiewonka
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« Reply #13 on: June 29, 2015, 12:51:50 am » |
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While waiting on the chips I pulled the existing eeprom. I took off as much solder as I could, but a little must have remained. When I got the chip to budge it pulled up two pads. Fortunately they just lifted, so it seems like they should solder back down ok. I hope.
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« Last Edit: June 29, 2015, 12:53:27 am by jessiewonka »
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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jessiewonka
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« Reply #14 on: July 03, 2015, 04:45:35 pm » |
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Replaced the eeprom, but now the board boots to a "security ng!" message...
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« Last Edit: July 03, 2015, 09:37:17 pm by jessiewonka »
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Hunting for a Gyruss top marque bracket and Centuri coin door.
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