Anybody know what type of 12 volt transformer (the one with the butt end connectors) the series 4 requires (wattage, etc).
Also, if the transformer is dead, does the 15 volt link 6 backfeed into the 12 volt link? I tested a dead 4 series yesterday and at the time thought the transformers were good because the top one was feeding the keypads and I was getting 15 volts in the bottom one but now I see that it's really 12 volts so I just want to rule out that for sure the processor is dead before giving the customer a very very bad news.