Yeah, I would definitely start with a reflow--I see quite a few less than great looking solder joints. Here are a couple of threads you might find helpful:
viewtopic.php?f=9&t=52211viewtopic.php?f=9&t=6401To measure DC voltage levels, set your multimeter to the DC voltage mode, indicated by a solid line above a dotted one. Use the 20VDC range setting if it's not an auto-ranging meter. Your power source needs to be connected and there needs to be a cable in the input jack. If the pedal is assembled into the metal enclosure, put the black probe into one of the corner screw bosses of the enclosure--this is your ground connection. If the "guts" are out of the enclosure, use the
sleeve tab of the input jack for the ground connection. Then touch the red probe to each point that you want to measure.
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