I just recently picked up a EM2200x for a somewhat descent price with a known no AC output issue. I got it from I guy who bought it with intentions to fix and never got around to it. After getting it home I found there was no Voltage regulator on it at all. (AVR) That posses a problem. I went to the library and found a repair manual and one of the tests has you unplug the AVR and apply 12v across the points and voila I was producing 120v output. This I believe tells me that if I get a voltage regulator I should be in business. (I hope) Is there anything else I need to test? A voltage regulator is $100 bucks new but do not want to buy it if there is something else wrong. I cant finds frame serial number but need either a 32350-ZB3-004 or a 32350-ZB4-14. I would love to find a used one if possible. Just in case there is another underlying issue. Any feedback would be appreciated.