The negative side of the cap connects to pin 28 of the audio driverboard .
The positive side connects to pin22 of audio driverboard and to the positive side of C222
The positive side connects to pin22 of audio driverboard and to the positive side of C222
Do you still need answers to the above? I can dig it out.
Did you figure out what the short was in the power supply?
Did you figure out what the short was in the power supply?
I’m working or this amp lil by lil when I have time .
Im ready to install the outputs in the amp . This amp uses the 4 driver ic board (4xIR21844s)
I have enough outputs for 2 banks but not enough for all 4 banks .
My question is if I use the outputs I have for 2 banks and order more for the other 2 banks would that cause issues since all 4 banks won’t have matching date codes or should I order all new outputs for the 4 banks ?
Im ready to install the outputs in the amp . This amp uses the 4 driver ic board (4xIR21844s)
I have enough outputs for 2 banks but not enough for all 4 banks .
My question is if I use the outputs I have for 2 banks and order more for the other 2 banks would that cause issues since all 4 banks won’t have matching date codes or should I order all new outputs for the 4 banks ?
What's important is to have the FETs that work directly in parallel to match. There are two banks of FETs per IC. The FETs in bank 1 have to match each other and the ones in bank 2 have to match each other but bank 1 doesn't have to match bank 2.
Have another question on this amp .
The specs say the amp will do 7700 watts @1ohm load test voltage 14.4 volts
Since I will be running this amp at 16 volts input wondering if the amp will do anymore power ?
The specs say the amp will do 7700 watts @1ohm load test voltage 14.4 volts
Since I will be running this amp at 16 volts input wondering if the amp will do anymore power ?
If the rail voltage continues to go up between 14.4v and 16v, it should. At full power, will the charging system be able to keep the voltage at the amp at 16v?
Yes the charging system will be able to keep the voltage at 16 volts at the amp . I spent a ton of money on the charging system
I have 2 high output alternators rated at 390 amps . These are stand alone alternators the factory alt is still in the truck also I’m using the factory alternator to control the factory electronics and the 2 390 amp alternators for the charging system for the audio . I also have a 120ah c max battery they said is good for amps up to 22,000 watts
Since this amp has 2 separate boards a power supply board and output board I’m going to test the power supply board after the repairs .
I will be using this amp at 16 volts .
Wondering what’s the best way to check the drive signals ect with a variable power supply so I start looking at drive signals at 12 volts and increase it up to 16 while looking at the drive or what voltage should I start at
I will be using this amp at 16 volts .
Wondering what’s the best way to check the drive signals ect with a variable power supply so I start looking at drive signals at 12 volts and increase it up to 16 while looking at the drive or what voltage should I start at
There is no regulation for the rails so I wouldn't expect the drive to change with varying 12v supply voltage.
What's the DC voltage on the collectors of all of the NPN driver transistors? Check all 4.
What's the amplitude of the drive on pins 9 and 10 of the driver IC?
What's the amplitude of the drive on pins 9 and 10 of the driver IC?
You likely have defective driver transistors. I'm assuming that the previous waveforms were taken from the emitters of the driver transistors.
The waveforms I took in the beginning were on the gate leg of the fets only 1 bank of fets has issues . Not sure why it is everytime I switch drivers in amps I always end up with defective ones