DS1287 realtime clock replacement

[ppppenguin]

Annoyingly, the replacement module doesn't work properly. There must be some subtle differences between the DS1285 (the chip used in the DS1287) and the Benchmarq chip used in the replacement module. So I carefully cut away the epoxy from the DS1287 and removed the dead battery. I then swiped the battery holder from the replacement module and fitted it to the DS1287. This worked OK.