{"id":230,"date":"2009-05-01T04:17:54","date_gmt":"2009-05-01T09:17:54","guid":{"rendered":"http:\/\/www.pealefamily.net\/tech\/arcade\/?p=230"},"modified":"2009-05-01T04:37:40","modified_gmt":"2009-05-01T09:37:40","slug":"finally-getting-to-this-project","status":"publish","type":"post","link":"http:\/\/www.highscoresrepair.com\/?p=230","title":{"rendered":"Finally getting to this project"},"content":{"rendered":"

The cabinet is still in storage, but since I knew the board has issues I brought it home to repair here in my spare time. Luckily the Galaxian cab conversion in my boys room still has the factory Galaxian harness in it. All I had to do was populate the fuses, pop on the video connector and I have a “test bench” for Galaxian. For Pac-Man and Ms Pac-Man too, but my Pac-Man board is far from getting to the ‘test phase”.<\/p>\n

As well as the board from the cabinet, I also have a board I purchased off a BYOAC<\/a> member a number of years ago. I don’t even know why I bought it, I had no plans at the time to resurrect my Galaxian conversion to Galaxian, and didn’t know I’d be buying a complete one.<\/p>\n

Needless to say that board doesn’t work properly. Well…neither of them do. The one I bought seems to have correct colors, but the video sync looks to be off and it’s a big smeared mess. On the one from the cab it produces a red screen filled with zeroes. <\/p>\n

First thing I did on both boards was replace the 245s. I’ve read they can cause all kinds of problems with memory addressing. A KLOV<\/a> member kindly sent not only the 245s, but also sockets!<\/p>\n

Replacing them did nothing on the board I purchased, but on the cab board suddenly I had changes on screen, so I knew I was getting somewhere. I read that problems with ROM H (going by memory here, I’m probably wrong about the ROM number) can cause boot issues. I removed the ROMs from that area, and 30% of the legs weren’t even there, and even more came off when I removed them from the sockets.<\/p>\n

That meant bad sockets, and luckily I had replacements. What a pain; first I removed the plastic surround. Then heated each individual pin and pulled it from the hole. Sucked the hole clean as best as I could, and cleared any remaining clogs with a stainless steel dental pick. <\/p>\n

When I was done with that, I replaced the bad ROMs with the ones from the other board and it came up with the beginning of the boot sequence. A definite step forward. And then a new message: “BAD RAM #2”. According to what I’ve read, that means either one or both the 2114 RAM on board are bad. Since I don’t have them (or the corresponding sockets) I’ll have to wait to get them. I hate waiting, especially since I can almost guarantee there’s more wrong than just that, so I’ll have to justify shipping on more than just two chips an a couple sockets.<\/p>\n","protected":false},"excerpt":{"rendered":"

The cabinet is still in storage, but since I knew the board has issues I brought it home to repair here in my spare time. Luckily the Galaxian cab conversion in my boys room still has the factory Galaxian harness in it. All I had to do was populate the fuses, pop on the video […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[25,12],"tags":[24,51],"_links":{"self":[{"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=\/wp\/v2\/posts\/230"}],"collection":[{"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=230"}],"version-history":[{"count":4,"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=\/wp\/v2\/posts\/230\/revisions"}],"predecessor-version":[{"id":236,"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=\/wp\/v2\/posts\/230\/revisions\/236"}],"wp:attachment":[{"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=230"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.highscoresrepair.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}