Yamahahaha RX-A730 with a Faulty Texas Instrument's DSP Chip (REPAIR ATTEMPT) [Video 18]

[@scottvangulik8744]

If you still have it, is there any chance that you'd be willing to sell the digital board from that RX-A730? I just bought one and the guy who had owned it actually burned the PCB while trying to "cook" that bad IC.

[@780bpmclicktrack4]

Thanks for the vid my friend. I have a yahahaha RX-V381 that if theres a power outage or its unplugged it "Forgets " what it is..And I have to hit a series of buttons to remind it that its a RX-V381 from USA.. After that it works fine..I have a large set of DCM Timeframe 600 speakers that are rated at 6 ohms. If I crank up the volume to a pretty loud level it shuts off... Any idea what could be the problem? Im thinking maybe the emitter resistors are bad or have ring cracks, or maybe I need to recap my crossovers in my speakers..?

[@Mr.ElectroniCET]

I'm not sure if the Yamahahaha units have a CMOS battery for settings like you mention. If yours seems to have one, it could probably need replacing. As for your issues with your speakers, I would check the impedance rating on the back of your unit. It could be that 6 Ohms is too much for your amplifier to handle. Or, if it is the case that your amplifier can handle that kind of load, I would start by checking the main positive and negative rails for the power amplifier section. If they are not in spec, your amplifier might not be operating at optimal performance.