Hello again,

Photo here of the power board from an HP DeskJet printer.
http://members.shaw.ca/peasthope/DeskJetPowerBoard.jpg

This is the back of the board.
http://members.shaw.ca/peasthope/Des...rBoardBack.jpg

I removed the three medium sized capacitors in the upper
left and, not surprisingly, found residue with the appearance
of thinned molasses beneath them.

The photo of the back side shows where this residue has flowed
through some of the holes and corroded along traces.

I've never tackled anything this badly damaged. Cleaning
exposed surfaces with swabs and alcohol won't help the corrosion
in the holes and under the green polymer coating. What are the
recommendations? Is repair a realistic possibility? If so,
pointers about technique will help.

Thanks, ... Peter E.