Quote Originally Posted by epatsellis View Post
Man, you're really going about this the hard way. I would start by measuring all the voltages with reference to the schematic. quite likely you have a single or at most a few resistors or caps that have gone off value. While I admire your dedication, it's a rather simple repair that shouldn't be all that hard.
Dumb question, but how do you test components that are part of a circuit? I know I can use a multimeter to measure resistance when the resistor is out of a circuit, but will it give the same reading when a resistor is in a circuit? Same with testing capacitors, diodes and other components. Or are you saying the schematic should contain test points and marked voltages?