This unit was in for solder job about 6 months ago and new EEPROM Now, F4150 blows in about 3 seconds after plugged in. I replaced it with a 100w light bulb with hopes of trouble shooting this thing, but then the main 5a fuse blows. HOT tests OK, Q4150/4151 test fine. I can't find any shorts any where. Has anyone run into this before? Thanks Jeff mailto:Jeff@xxxxxxxxxxxxxxxxxx www.9-11-2001tragedy.com FAX 1-413-280-0677 Intrepid Video & Electronics Harrisburg, PA 17111 717-909-8844 www.intrepid-video.com www.tech-repair.net www.thetoolcaddy.com ***************************************** Help make your TechAssist online repair tips database better! Submit your fixes here: http://www.circuitwork.com/techassist/tip/#tips ***************************************** To UNSUBSCRIBE write to: techassist-request@xxxxxxxxxxxxx with unsubscribe in the subject line.