I replaced capacitor and I gauged it. The value changed to 17V and 19V. I decided to buy one piece of 30V - 1000 micro , 2 piece of 25V- 1000 micro and one piece of 25V-200 micro. I went to Akihabara and found that 25V-200 micro was out of production. I asked the staff of parts shop that the availability of parts almost same as 200 micro. He said, "180 micro or 220 micro are available." The amplifier is so old one produced 30 years ago and the specification seems different from modern one. Is it natural that such old product is broken?
I asked the staff which parts he recommended me. He said "299 micro might be better." So I bought it.
On the way from parts shop to my home I dropped by Hi-Fi Do. I told about TRIO amplifier and showed the parts. He grinned and said, "I hope you can fix it." Then he said, " If you can not fix it, can I ask maintenance staff to repair at your charge." I decided to repair it by myself.