Hi everybody,
I would like to tell you my story with the A3000D. I bought it five years ago, from a designer. The computer did not boot and displayed a black screen. There was a battery leakage which eroded the protective paint layer on the motherboard and the acid has infiltrated under it. I removed the battery and I cleaned the zone. Now the computer seemed perfectly working and I thought that probably the failure was due to a short circuit of the battery... I was wrong.:-(
Sometimes later I turned it on again and it display a green screen!
I disassemble the mainboard and re-checked all the components, chips, ram, welds but there was nothing abnormal; the card looked like new and everything seemed OK. Before re-installing everything I tried to turn it on and it worked again. I thought that probably the failure was due to a bad contact with some socket... I was wrong (again).
After three years I turned it on and... same old story, the green screen.
I did not like the idea of having a computer that turns on once in a while, so I disassemble again the mainboard and looked at it more closely. There was some blue spots here and there on the pins of the components and on some welds, even away from the leakage zone. The Amiga worked intermittently pushing on the Agnus socket sides. I tried to pull out the chip and to check and clean the pins but this did not solve the problem. Finally, I had confirmation of my theory about what might have happened.:nuts: Inside the quite small case, with heat and forced ventilation, the acid vapor were brought on the components and on the weldings, also distant from the battery, and with the help of the powder it fixed on these starting corroding them. This is what happened to Agnus socket, believe it or not!:-o
After refreshing the weldings, Amiga started to be fast and stable and I never had the problem.:smile:
I hope this will be useful for those of you who have a battery leakage problem. Good luck!
Regards
I would like to tell you my story with the A3000D. I bought it five years ago, from a designer. The computer did not boot and displayed a black screen. There was a battery leakage which eroded the protective paint layer on the motherboard and the acid has infiltrated under it. I removed the battery and I cleaned the zone. Now the computer seemed perfectly working and I thought that probably the failure was due to a short circuit of the battery... I was wrong.:-(
Sometimes later I turned it on again and it display a green screen!
I disassemble the mainboard and re-checked all the components, chips, ram, welds but there was nothing abnormal; the card looked like new and everything seemed OK. Before re-installing everything I tried to turn it on and it worked again. I thought that probably the failure was due to a bad contact with some socket... I was wrong (again).
After three years I turned it on and... same old story, the green screen.
I did not like the idea of having a computer that turns on once in a while, so I disassemble again the mainboard and looked at it more closely. There was some blue spots here and there on the pins of the components and on some welds, even away from the leakage zone. The Amiga worked intermittently pushing on the Agnus socket sides. I tried to pull out the chip and to check and clean the pins but this did not solve the problem. Finally, I had confirmation of my theory about what might have happened.:nuts: Inside the quite small case, with heat and forced ventilation, the acid vapor were brought on the components and on the weldings, also distant from the battery, and with the help of the powder it fixed on these starting corroding them. This is what happened to Agnus socket, believe it or not!:-o
After refreshing the weldings, Amiga started to be fast and stable and I never had the problem.:smile:
I hope this will be useful for those of you who have a battery leakage problem. Good luck!
Regards
