![]() ![]() (there's another prominent seller that puts the jumper under the EPROM which is the dumbest design I've seen in ages. ![]() ![]() He put the 2MB / 4MB jumper on the back of the board so you can still change it when you make a mistake and have already soldered the EPROM on. You can use surface mount or through hole parts. He did a very, very nice job on these PCBs. I will be placing an embarrassingly larger order soon. I emailed the creator and he had a few in stock. THEN I take a thumb tack and manually force it through the holes. THEN I put my tubing on the exhaust port of the vacuum and blow the remaining solder out of the back of the PCB. Maybe the carts ran hot and quietly smoldered? My best strategy has been to do as many pins as I can, then break off the ROM chip (oh no, RIP Madden 93) and individually do the remaining pins. Oddly, it's the same pins that are problematic. I don't know what the hell kind of solder they used, but it's taking me over an hour per cartridge to get the holes clean. ![]() I have officially thrown in the towel on depopulating EA pcbs. You'll watch a molten turd go flying down the tubing. Keep the flame on the tube until you burn your thumb, and then turn on the vacuum. So, I figured there had to be a quicker way to clear clogs, and found out this works really well. Boots and plays fine and I didn’t do a thing to the pcb. The eventual solution was to snap off the rom, then add fresh solder to the legs, and then desolder. Even with hog flux, I wasn’t having much luck. SEGA boards you kiss with the desoldering rig and I swear you can just shake the old rom chip off. Grabbed a copy of Madden 93 and burned a 1MB Blades of Vengeance without any padding. My theory is that so long as the rom is the same size or smaller as what was on the donor board, a new game shouldn’t ever try to address the saving circuits and it’ll just run cheerfully ignoring half the pcb. I’ve got all these damn EA boards, they’ve all got complicated saving circuitry, and I don’t want to do 20 jumper wires and trace cuts like I did on my first copy of Blades of Vengeance. Lot of kids out there with games that never worked right I imagine. Some of the soldering jobs on the old batteries are beyond terrible. Monster World 4 also working perfectly on that Troy Aikman pcb with a new battery. I cut that connection and jumped it to ground and we’re in business. By default on this board it’s already connected to 5V, which ordinarily disables that line and makes it act like a 1MB chip. After the panic subsides, I decide it has to be related to pin 42 on the eprom. I mean, this is a very early game so I can kind of understand it but I guess you’re boned if any of the save game chips fail.Īnyway, when soldered to the Sports Talk Baseball pcb, it won’t even boot. You hit start and it attempts to check for a save file and it locks. On my 2MB SRAM tester pcb, the game boots up to the title screen. Turns out Wonder Boy uses the same set up as Sports Talk Baseball. Basically I’m trying to figure out which worthless sports games with saving circuits can be converted. I was doing some reading on the various saving methods and there’s a PDF out there that talks about the serial eeproms and all that. So, Wonder Boy in Monster World is an interesting one. ![]()
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