New to me 2000x. After thorough clean and deox of all switches, I recapped and changed all transistors, diodes and zeners. Found a pesky open on a trace that looked good but wasn’t (I jumper wired it and she started to sing on that left channel finally). It took me a month and guidance from AKers to finally find that fault. At volume it now sounds awesome, but with no volume it has a low hum in both speakers that bugs me still.
Ground loop? Checking all ground connections, I’m getting 0.2 and 0.3 ohms. Is this good enough or is this THE problem and I need to reflow all these ground connections to chassis.
Or should I go back and recheck all the transistors?
Any directions would be appreciated.
Ground loop? Checking all ground connections, I’m getting 0.2 and 0.3 ohms. Is this good enough or is this THE problem and I need to reflow all these ground connections to chassis.
Or should I go back and recheck all the transistors?
Any directions would be appreciated.
