My crackle problem resolved after having the drawings from Oldturkey03 which was of great help - I have replaced 2SA1145 tarnsistor and my right channel is now back to normal. But now I got another problem, all of a sudden all my video outs are having distorted picture. Checked and found the -5V voltage regulator is faulty(no voltage). I replaced it and the -5v is restored but now I get no picture at all. Where could the problem be. Access to the video PCB is also very troublesome, I will only dismental it if necessary. This vintage AV is a sentimental item I hope if I can get it to work. Anyone can offer any help. Thanks.
Vincent Chua