Android8675 Posted September 12, 2014 Share Posted September 12, 2014 Hey all, got my ebayed 1040STf hooked up and I'm getting 3 and occasionally 4 bombs at powerup, rarely I can make it to the desktop. Please tell me it's something easy to fix. Quote Link to comment Share on other sites More sharing options...
Charlie_ Posted September 12, 2014 Share Posted September 12, 2014 Hey all, got my ebayed 1040STf hooked up and I'm getting 3 and occasionally 4 bombs at powerup, rarely I can make it to the desktop. Please tell me it's something easy to fix. Here is a list of the bomb codes: http://en.wikipedia.org/wiki/Bomb_(symbol)#Atari_ST_TOS I would open it up, remove all the RF shielding Remove any socketed chip and plug it back in, nice and snug. Make sure to use a proper PLCC extractor tool for the square ones. They are easily damaged if you don't have this tool and try to pry them out. You could even crack the socket. http://www.amazon.com/s/?ie=UTF8&keywords=plcc+extractor&tag=mh0b-20&index=aps&hvadid=3488329600&ref=pd_sl_3kglljow5g_e Quote Link to comment Share on other sites More sharing options...
English Invader Posted September 12, 2014 Share Posted September 12, 2014 My understanding is that the bombs are the ST equivalent of the Windows blue screen of death i.e. a sign that the OS has given up trying to perform a particular task and doesn't know what else to do. They often occur with minor things like defective disks or when you try to run another program when the previous one is still in the system memory, but they can be symptomatic of more serious issues. Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted September 12, 2014 Share Posted September 12, 2014 3 Bombs = Address Error (Illegal address or odd address accessed) 4 Bombs = Illegal Instruction I'd say you have faulty RAM. As it's not an STe, changing the RAM requires soldering. Good luck. Quote Link to comment Share on other sites More sharing options...
ParanoidLittleMan Posted September 13, 2014 Share Posted September 13, 2014 I recommend that do what Official Ninja wrote, + checking power supply. Later needs at least voltage measuring equipment. Maybe to bring it to some electronic service where can check it with oscilloscope. Usually, in such old devices electrolytic capacitors are weakened. In this case, bombs just mean unreliable work of some component(s). Quote Link to comment Share on other sites More sharing options...
English Invader Posted September 13, 2014 Share Posted September 13, 2014 I'd say you have faulty RAM. As it's not an STe, changing the RAM requires soldering. Good luck. Faulty RAM usually means you get a black screen with a white border on boot-up and nothing else. Also, STfm RAM can be upgraded without soldering if the motherboard has socketed MMU and video shifter chips with the help of a Marpet kit. Quote Link to comment Share on other sites More sharing options...
+CyranoJ Posted September 13, 2014 Share Posted September 13, 2014 Yep, and for the price of a Marpet you may as well throw it out and buy an STe Faulty RAM usually means you get a black screen with a white border on boot-up and nothing else. Also, STfm RAM can be upgraded without soldering if the motherboard has socketed MMU and video shifter chips with the help of a Marpet kit. Quote Link to comment Share on other sites More sharing options...
Android8675 Posted September 14, 2014 Author Share Posted September 14, 2014 Here is a list of the bomb codes: http://en.wikipedia.org/wiki/Bomb_(symbol)#Atari_ST_TOS I would open it up, remove all the RF shielding Remove any socketed chip and plug it back in, nice and snug. Make sure to use a proper PLCC extractor tool for the square ones. They are easily damaged if you don't have this tool and try to pry them out. You could even crack the socket. http://www.amazon.com/s/?ie=UTF8&keywords=plcc+extractor&tag=mh0b-20&index=aps&hvadid=3488329600&ref=pd_sl_3kglljow5g_e Gonna try that, I think I have a PLCC extractor somewhere. My understanding is that the bombs are the ST equivalent of the Windows blue screen of death i.e. a sign that the OS has given up trying to perform a particular task and doesn't know what else to do. They often occur with minor things like defective disks or when you try to run another program when the previous one is still in the system memory, but they can be symptomatic of more serious issues. Yes, I know that, trying to figure out the most common reason for the 3/4 bomb error codes. (Address/Instruction Error) 3 Bombs = Address Error (Illegal address or odd address accessed) 4 Bombs = Illegal Instruction I'd say you have faulty RAM. As it's not an STe, changing the RAM requires soldering. Good luck. Thanks dude, wanna do it for me, I'll pay ya... Kidding, I don't have any spare cash at the moment. Yep, and for the price of a Marpet you may as well throw it out and buy an STe Some tool got a 1040ste off ebay last night from me for $75. I was camping at the time, didn't really put a lot of effort into it. I should of put in a higher bid, ah well. THanks for the responses people. Quote Link to comment Share on other sites More sharing options...
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