shaffermarka

The close proximity of cumulus and Meson to each other means that by replacing one you are always reflowing the other. Reflowing these is not a long term solution because the exposed pads on the bad joints oxidize which doesn't allow a good joint to form. It may leave your shop working, but will easily fail again. You should always replace both.

Also, I've found that the "grey bars" can often be intermittently fixed by applying pressure directly to cumulus which would indicate that it is the source of the fault.