I took a first attempt at replacing the caps on my MV-1FZ board today and am having a real hard time desoldering the old caps.
For the first try I chose a remote cap near the JAMMA edge with little in the way of components in its proximity - basically its a no go, whatever I try I cannot get the solder molten enough to set the cap loose. I do not have a dedicated desoldering tool like e.g. Hako FR-300, but with the tools I have (WEP 872D soldering / hot air station, manual desoldering pump, desoldering braid etc.) I cannot make any progress on removing the old caps, let alone clearing the via's up for insertation of the new caps.
I tried all the usual methods - apply new solder to the old joints, using different tips (e.g. needle to pry the via), preheat area with hot air to reflow the old solder etc. but ain't making any progress.
It seems the extensive PCB thickness is part of the problem. The other week I replaced the caps in a PCE Supergrafx and SNES Mini and just now finishing up doing a model 1 HDG Megadrive - these were all relatively simple jobs but this is proving really difficult - any ideas would be welcome.
For the first try I chose a remote cap near the JAMMA edge with little in the way of components in its proximity - basically its a no go, whatever I try I cannot get the solder molten enough to set the cap loose. I do not have a dedicated desoldering tool like e.g. Hako FR-300, but with the tools I have (WEP 872D soldering / hot air station, manual desoldering pump, desoldering braid etc.) I cannot make any progress on removing the old caps, let alone clearing the via's up for insertation of the new caps.
I tried all the usual methods - apply new solder to the old joints, using different tips (e.g. needle to pry the via), preheat area with hot air to reflow the old solder etc. but ain't making any progress.
It seems the extensive PCB thickness is part of the problem. The other week I replaced the caps in a PCE Supergrafx and SNES Mini and just now finishing up doing a model 1 HDG Megadrive - these were all relatively simple jobs but this is proving really difficult - any ideas would be welcome.