Reply 20 of 30, by psaez
rasz_pl wrote on 2024-04-04, 14:52:they never were, that yellow stuff underneath is copper sheet, they are all connected to it, all the little guys and that big ca […]
psaez wrote on 2024-04-04, 14:36:Originally they were separated
they never were, that yellow stuff underneath is copper sheet, they are all connected to it, all the little guys and that big capacitor hole, they are all one the same VCC plane.
psaez wrote on 2024-04-04, 14:36:, but they are mixed now, I mean they are connected with tin. And its absolutely impossible to unconnect them. I tryed everything. So I openned this post to request for help.
its all ok, you didnt mess anything up. Old soldermask - the paint covering copper - started flaking off and that caused your solder to start wicking up the copper plane due to surface tension.
psaez wrote on 2024-04-04, 14:36:So... then.. if I start the motherboard.. will it break if the red circle is still connected with the positive leg of the capacitor throught that tin on the reverse of the motherboard?
no, it was always connected to it, that capacitor is filtering voltage coming from the coil
Pickle wrote on 2024-04-04, 13:21:I think the problem was the cap leg was forced into the small via and not the larger one
majestyk wrote on 2024-04-04, 12:55:Aaah, I see - I got this totally wrong in the beginning. I understood you were in doubt, because the blank area had become large […]
Aaah, I see - I got this totally wrong in the beginning. I understood you were in doubt, because the blank area had become larger and you were unsure if you can connect them when soldering the new capacitor. Silly me...
Of cause you do not have to connect them, you can keep everything seperated as was the original stuation. Just do as everybody does, replace the capacitor and make exactly two (tiny) solderings. There´s absolutely nothing wrong with the original state.
Then again, what was the problem?
And what exactly do you mean by "mixing" the soldering points / vias?
well guys... something is wrong now... first I put straight all the legs of the capacitors heating the tin, and cut them. After that I used a magnifying glass to check that all is OK, obviously, the thing from the first photo I uploaded here is still the same, but as you told me is fine, I tought it whould work. Then, I connected the motherboard, and first it started correctly, and even entered to Windows 98, but suddenly it rebooted and speaker started to make a crackling noise and compact disk reader started to reset itself constantly and screen turned off. If I shut down and start again, the same.
I tryed removing everything, and simply waiting on the screen that tells you that there is no boot, and the same, suddenly it comes to black and starts to reset constantly.
I'm very frustrated, don't know what is happening, it is very sad that I think I broken the motherboard