great i thought that where it might be, the problem is getting that board out of the cabinet. i can unplug all the connectors, slide the bottom out and tilt it up to access the bottom, but trouble shooting is no good with every thing unplugged. ESR? im umfimilar with that. i have a DVM with a capacitance function on it and a fluke ocillicope. ive nothing but time. im currently out of work so time is not a factor, lol. i have to have kidney surgery on the 23 nov. so where can i find service lit? changing the entire board would not be difficult, but it cost money, something i lack of at this time, lol. thanks for your valuable advice and time