The PRS505 is dead: long live the PRS600
I'm sad to announce that the PRS505 is dead. I installed a new battery, but that wasn't the problem, but the charging circuit. Though I'm competent in electronics these micro-circuits don't lend themselves to repair.
I bit the bullet and purchased a PRS600, which seems to be a capable little machine, despite the quoted reflectivity and contrast issues (you just need a bit more light).
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