Your videos helped my a lot. A present for you: I am doing professional electronics since 30 years. You repaired ok. But to make it perfekt, first check all solder junctions under a microscope. Clean PCB and the solder junctions with alcohol or with a cleaner spray extra made for PCB`s and electronic. Check again under a microsope, search for a mechanically failed solder junction (sometimes not easy to see). Often more than one solder junction is defect, if defect or not depens sometimes on the temperature of the PCB, there is a mechanical gap of 0.0xmm. After cleaning it well put a flux for electronic solder on the solder junction, solder with PbSn (Plumbum-Tin solder, lower melting point, more ductile, at the date of production it was probably the same PbSn). Resolder all junctions, don`t put the solder iron temperature to high, ideal use a modern temperature controlled solder iron with a suitable solder iron tip size. Clean again with alcohol all solder junctions, inspecht again under the microsope. To make it perfect - if possible replace the old electrolytic capacitors by new electrolytic capacitors, same capacitance, same or higher nominal voltage, prefer japanese manufacturers. At least 105°C types or 105°C + Longlife types. Spray the solder junction with a clear 1K paint (extra made for PCBs, e.g. Kontakt Chemie Plastik 70) against humidity, this paint can be soldered again for repairing thru the paint.
You're a braver man than I! With my bad eyesight and shaky hands, I wouldn't have dared taking a soldering iron to my Vmax's circuitry, especially holding it over my thigh.
Thanks for commenting. It was a very easy fix and something I wanted to try for a long time. I hope my video and your comment will help people have a go at fixes theirs as well. KR
Your videos helped my a lot. A present for you: I am doing professional electronics since 30 years. You repaired ok. But to make it perfekt, first check all solder junctions under a microscope. Clean PCB and the solder junctions with alcohol or with a cleaner spray extra made for PCB`s and electronic. Check again under a microsope, search for a mechanically failed solder junction (sometimes not easy to see). Often more than one solder junction is defect, if defect or not depens sometimes on the temperature of the PCB, there is a mechanical gap of 0.0xmm. After cleaning it well put a flux for electronic solder on the solder junction, solder with PbSn (Plumbum-Tin solder, lower melting point, more ductile, at the date of production it was probably the same PbSn). Resolder all junctions, don`t put the solder iron temperature to high, ideal use a modern temperature controlled solder iron with a suitable solder iron tip size. Clean again with alcohol all solder junctions, inspecht again under the microsope. To make it perfect - if possible replace the old electrolytic capacitors by new electrolytic capacitors, same capacitance, same or higher nominal voltage, prefer japanese manufacturers. At least 105°C types or 105°C + Longlife types. Spray the solder junction with a clear 1K paint (extra made for PCBs, e.g. Kontakt Chemie Plastik 70) against humidity, this paint can be soldered again for repairing thru the paint.
You're a braver man than I!
With my bad eyesight and shaky hands, I wouldn't have dared taking a soldering iron to my Vmax's circuitry, especially holding it over my thigh.
It was easier to hit every bit of solder than missing and hitting something that’s been asleep for years! KR
Those are produced using cold solder joints, notorious for cracking loose.90 percent of the time I can fix pcb's just the way you did right there.
Thanks for commenting. It was a very easy fix and something I wanted to try for a long time. I hope my video and your comment will help people have a go at fixes theirs as well. KR
Контакты надо пропаять и все...
Я был шокирован, когда это сработало. Счастливого Нового года всей твоей семье, друг мой.