This amp is in protect .There is no short in the output section .When I power it up the first time it played good audio until I bring up the gain.I already tried the jumper from pin 8 to 14 but no luck
Any suggestions
Any suggestions
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According to the information I have (for a different amp, but maybe similar), pin 13 is over-voltage. Does the input on that pin vary when you adjust the 12v supply voltage?
I see 5.20v on that pin,
I don’t have a variable supply but with a inline limiter it went down to 5.13.
The resistor in series with that pin I pull it.voltage on that pin now is 0.726 but am seeing the same 4 blinks.
I don’t have a variable supply but with a inline limiter it went down to 5.13.
The resistor in series with that pin I pull it.voltage on that pin now is 0.726 but am seeing the same 4 blinks.
I think it's odd that they would have an input that would be above the supply for the MCU (correct me if that's wrong).
Some of these Stetsom amps use a 15 or 18v zener to stop any input to that pin before the Zener voltage is exceeded. See if there is a Zener in that high-voltage circuit.
Some of these Stetsom amps use a 15 or 18v zener to stop any input to that pin before the Zener voltage is exceeded. See if there is a Zener in that high-voltage circuit.
I said 5v because there is a 5v regulator used to power it.I dont remember exactly but i think is was around 5.25v.
If it was an actual over voltage issue the voltage probably would have been lower but in that case i am starting to think the over voltage circuit itself has a fault.
A schematic would have make things easier but these people wont even sell you a micro.
If it was an actual over voltage issue the voltage probably would have been lower but in that case i am starting to think the over voltage circuit itself has a fault.
A schematic would have make things easier but these people wont even sell you a micro.
I thought these was for under voltage.In an old post someone said they were about 7.2v.
I Pull both to test and got them mistaken,I install them back and the amp seem to be working good now.what should I do?
I Pull both to test and got them mistaken,I install them back and the amp seem to be working good now.what should I do?