Same issue as this thread only I dont think this one was ever solved: https://www.diyaudio.com/community/threads/kicker-dx500-1.270379/
Amp takes about ~8 seconds to fully power up.
During that time, theres only 1.2vDC across speaker terminals.
After 8 seconds, 12.8vDC across speaker terminals.
Amp rail voltage is 56vDC. I know this is a
I know there should always be about 27vDC on speaker terminals referencing ground, but one of the terminals is only at 14vDC. That terminal with only 14v on it; fets of this side are getting just every-so slightly warm to the touch.
Amp idles at 0.5A.
I've found R273/R274 underneath looking to have gotten hot but still measuring correctly at 8.8ohms as they're paralleled.
This amp is using two IRS20957S in the output stage. The partial service manuals on file for DX300/DX700 show HIP4080 as they're different amps.
Any help with why I may be seeing DC on speaker terminals.?
Amp takes about ~8 seconds to fully power up.
During that time, theres only 1.2vDC across speaker terminals.
After 8 seconds, 12.8vDC across speaker terminals.
Amp rail voltage is 56vDC. I know this is a
I know there should always be about 27vDC on speaker terminals referencing ground, but one of the terminals is only at 14vDC. That terminal with only 14v on it; fets of this side are getting just every-so slightly warm to the touch.
Amp idles at 0.5A.
I've found R273/R274 underneath looking to have gotten hot but still measuring correctly at 8.8ohms as they're paralleled.
This amp is using two IRS20957S in the output stage. The partial service manuals on file for DX300/DX700 show HIP4080 as they're different amps.
Any help with why I may be seeing DC on speaker terminals.?