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David, faulty capacitors will mess with voltages which could lead to all kinds of effects. Without replacing them there is no point even thinking what else may be wrong.
I would:
1. Ask your friend to replace all the electrolytic (large) capacitors. Your photo shows 3 (or possibly 4) bad ones, I would not be keeping the other ones.
Any electrolyte on the top indicates a need for immediate replacement. Big leakage like you have is bad and it will damage the PCB.
Get quality Japanese replacements, rated for long hours of operation and if possible rated for higher temperature than you already have.
2. Clean the PCB and check for track damage.
3. Email the manufacturer. Sometimes they are willing to send troubleshooting diagrams, with the testpoints and corresponding voltages on those points. After capacitor replacement your friend could check then that all voltages are correct.
Make sure you protect the CCD, don't want to be cleaning flux spatter from it later on.
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