Stephen wrote: " Well is the cpu has 5V and there is no clock at pin 37 then..."
However, the voltage between CPU pins 40 and 20 is 0.235VDC or so. Too little to light up anything. Somewhere between the power input and the CPU there must be one or more components that are failing. Worse yet, SOMETIMES failing. Finding them is not my long suit but I'll give it a try. The temptation is to blame the electrolytics, but I thought they either work or they don't.. How to approach this? Would you replace all the caps as a start? Or follow the power train and look for a place where the voltage is lower than expected? Thanks for suggestions. -CH-
