ok so my sound problem has been solved with using my old A500's PSU but I'm noticing a 5 second delay from the time I turn power on the PSU to the time my A1200 actually starts booting? also every 2nd boot I have to ctrl-A-A to get it to boot up properly.
Checked the voltages & they seem fine at 5.2 and 11.9
You also need to check -12V it's used for sound in Amigas ...
You can recap PSU too but only if you know what you're doing ...