68kMLA Classic Interface
This is a version of the 68kMLA forums for viewing on your favorite old mac. Visitors on modern platforms may prefer the main site.
| Click here to select a new forum. | |
| Se/30 with gouged board, need to locate traces | |
| Posted by: ClintonGoodfellow on 2023-02-26 17:47:27 Alright folks! I bought an se/30 board which I thought was alright, no battery damage, caps looked replaced etc. But on closer inspection the caps were installed very badly, some missing and electrolyte still on the board. The biggest issue was that one of the vram chips was half removed from the board and sitting at an angle. Two mins had it removed properly but it revealed the previous owners bodgery. He must have heated the board as it’s slightly warped and levered the chip with a screwdriver. No need for that. Anyhow, underneath the chip there’s a gouge and I’m wondering what traces are damaged. There’s clearly a break to one of the vias visable which would be a handy fix, but being multi layer I’m concerned there might be other damage I can’t see. Is there images of each layer of the board I can use to check? Or even a detailed pic of board stripped of components? Im not even sure why the previous person would have been lifting this chip to begin with, but hoping once I repair this area and redo and check the caps I might be brave enough to connect it and give it a test. Hope you can advise as it’s a very tidy board and a real shame it’s been treated like this. | |
| Posted by: Bolle on 2023-03-03 00:24:07 There's an internal trace going that way  | |
| Posted by: ClintonGoodfellow on 2023-03-03 01:57:21 Awesome, really appreciate this info. Will check this out later when I get home. Hopefully can fix some of this bodgery. Still no idea why this chip was being lifted, does the vram tend to fail? | |
| Posted by: ClintonGoodfellow on 2023-03-23 16:18:13 I got a chance to check this tonight. The red line highlighted is still connected but the trace heading from the via is clearly broken. Currently deciding on whether to run some kynar wire or repair the trace under the chip. Obv still don’t know why this chip was lifted so thinking of installing a socket in the meantime? Would these be suitable replacements if one of these ram chips comes back as faulty? Thanks again | |
| Posted by: Fred1212 on 2023-03-23 19:47:31 Those chips will work | |
| 1 |