SP-12 Repair Squad Pt. II
Here we go again. I'm still trying to repair my SP-12 i bought off ebay. The issue was the display suddenly not showing any characters anymore which i could locate to the connections of the flat ribbon cable between the mainboard and the display. After a closer check i could see that the cable broke right behind the soldering points. In the pictures you can see a little story on how we exchanged the cable and resoldered the display to the mainboard. This took us several hours but in the end we couldn't help anything with it. The Display still won't show any characters and we have another issue coming up: After powering up, the machine will boot and then after working for a second it will stall and not respond to anything. This could have something to do with the battery which powers the sample RAM, that might have lost it's power over the last 25 years, so I ordered a new one that will arrive this week. Wish me good luck. To be continued...
