Re: Sony STR-DB940 pulled back from the brink

I know this is an old post but maybe you guys cam help me. I have a Sony STR-K840 (110 volts-US version) and it started to enter protect mode. I opened up the case and got rid of the dust with compressed air, tighten all the screws and powered up the device. Nothing changed, still in protect after first relay and before second relay. So I disassembled the board and reflow all the solders on power mosfets, IC501 (STK350-230) and IC 701 and 702 pins in case of any cold solders. In the second try the relays started to chatter continuously....