Hitachi HA-270 amplifier restoration (part 1)

This amplifier was brought to the workshop as "working", but with a bit of intermittent issues in the controls. Upon checking the amp, I found quite some serious issues in the power supply section and I decided to do a full service on this one. It needs it urgently! 00:00 Introduction & general overview of the amplifier 04:43 Checking DC offset 05:46 Testing the current condition 08:52 First look inside & further disassembly and diagnosis 28:18 Recapping results 33:20 Outro WARNING: Do not attempt to repair electronic equipment if you don't know what you're doing. If you enjoy my content, consider buying me a coffee: https://www.buymeacoffee.com/retrotech Electrocution logo: Nesdon Booth, The Noun Project License codes: BMXOTUVEJ4JAXPLZ