loudforce 2000.1 class D amplifier, the source is ok, the audio output is ok, however, the amplifier works for a minute and the sound is distorted and cuts off, no physical damage, I don't know where to start, everything looks good , Thank you
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hello perry, if the rail voltage drops, also the voltage +-15 volts of the regulators drops to 4-5 volts, and the green power led blinks almost to off.
my source is 13.5 volts and 25 amps, when the amplifier distorts the rail voltage drops but the source does not drop below 13.2 volts, suddenly when the amplifier works well if it consumes more amperage and the voltage drops to 12 volts
that is, the amplifier failure is intermittent because on occasions it works without distortion at low and medium volume
Are you drawing more current than the 12v power supply can provide?
Do you have a larger supply to see if it makes a difference?
Do you have a larger supply to see if it makes a difference?
when the amplifier does not fail its current consumption is normal, when it distorts the current consumption is very little, I do not have a larger source.
You stated that after about a minute, it started to shut down. If you let it idle for 5 minutes, will it play for the same 1 minute like you described in the original post?
hello perry, no, actually the problem is so intermittent that it works well when it wants to, not for time, I mean that when it works well it is only for a short period of time, but I doubt that it has to do with the heating of some component since the failure is constant and can occur from the power on of the amplifier.
sorry for my english, I'm using the translator.
sorry for my english, I'm using the translator.
Which pin on the PS driver board is receiving a signal that's shutting the amp down?
How many pins on the PS driver board?
How many pins on the PS driver board?
14 legs in PS, I have no idea how to check the leg that receives the amplifier shutdown signal
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On the 8-pin IC on the PS driver board, do you see either pin 1 or pin 7 going high when the amp shuts down?