New member from a sunny island

Hello good people. I am from a tiny, sunny island, Singapore. We are often seen as a red dot in the asia-pacific region.

I have joined this forum with hope to learn something about circuitry. I am not from an electrical engineering background. It is quite frustrating for me to see people fixing these electrical equipment and getting them working when all I can do it watch in envy. I have so much respect for those who fiddle with these equipment, getting them working when all hope is lost(when the manufacturer tells you to pack the unit up and leave it aside as a paperweight). I have asked some of these skilled tradesmen how they acquired this level of expertise and they always tell me it was honed through years of fiddling with faulty equipment or just about anything electrical they get their hands on. I guess I have to start somewhere. My aim would be to know the fundamentals about how these things work and basic troubleshooting if a fault comes up.

On a sidenote, I have been introduced to music from a young age and have been fortunate to be handed over a decent stereo set comprising a set of speakers, receiver, power amp and a cd player. At this current moment, I am trying to get all these equipment serviced for operation. Recently, I had to face some major setbacks with the power amp acting up. It is the NAD 208 THX. Yes, you heard it right. It is the beast from the 90s with a list of problems. I love this amp so much that I wanted to build my hi-fi setup around it. Those whom I have spoken with held this amp in high regard. I have been advised by many across the globe that ths amp is a keeper when fixed. It was reassuring and encouraging to hear that I have a piece that is well worth the fix. It was well cared for but no amount of care can mitigate internal wear and tear. I will post my concerns on the solid state thread. Perhaps the esteemed members here can help me out or at least point me the right way forward. Thank you for allowing me to be part of this community.