Onkyo Integra A-8870 (1991) - serwis i konserwacja wzmacniacza stereo

Report from the service of my Onkyo Integra A-8870 amplifier. In a similar way I take care of other models A-8650, A-8670, A-8690, A-8850 and similar. Feel free to watch and comment :) Email me: [email protected] 0:00 - Introduction 3:35 - A peek inside the amplifier 4:26 - The bottom of the amplifier, removal of the front panel 6:38 - Preamplifier section, phono stage 7:45 - Dusting off, preparing for further work 8:31 - Selector, control board, front panel switches 11:22 - Measurements of electrolytic capacitors 14:37 - Standby board, power supply board 16:30 - Cleaning the boards, replacing capacitors 19:43 - Starting work on the switches and relays 23:05 - Measuring relays before cleaning 24:53 - Cleaning the amplifier housing 26:24 - Cleaning the encoder, selector circuit, switches and relays 34:47 - Relay measurements after cleaning 35:44 - Cleaning the circuit boards after soldering, assembling the amplifier 36:25 - Start-up the amplifier after service 42:07 - Adjusting the idling current of the power amplifier 45:37 - Performance of an amplifier 49:57 - Summary