I'm looking at this surround receiver that has a mains switch turn on pop (rocker power switch at the back of the unit) from the subwoofer out. It has several line outs aside from speaker outs. There's no pop from the speakers when turning on.
From the mains switch pop, I measured the sub out and there's no DC spike, but there's AC spike anywhere between 20-60mV.
During standby theres no DC on the outputs, turning on with the front panel switch the sub out has either -20mV or 7mV DC offset. There's a thud and the noise tapers down as the offset drops.
With regards to the mains switch pop, I'm going to replace the X2 mains snubber caps for good measure.
I'm not sure what to do about the pop from turning on from standby. Can't find documentations or adjustments for it.
Anyone could point me in a general direction for this?
From the mains switch pop, I measured the sub out and there's no DC spike, but there's AC spike anywhere between 20-60mV.
During standby theres no DC on the outputs, turning on with the front panel switch the sub out has either -20mV or 7mV DC offset. There's a thud and the noise tapers down as the offset drops.
With regards to the mains switch pop, I'm going to replace the X2 mains snubber caps for good measure.
I'm not sure what to do about the pop from turning on from standby. Can't find documentations or adjustments for it.
Anyone could point me in a general direction for this?
