Q: Sorry, a very stupid question. Have you checked all the power supply FETs? If so, are they all good, or did you replace them, and what Fets did you use? Also, are the bridge rectifiers ok?
A: Yes, I removed them and checked each one and the rectifiers and all are good.
It's Pin15 of IC4 is the second PWM.
Following your instructions, I observed that it has an excellent PWM for the initial 6 to 10 seconds before entering a loop. I have PWM connected to pin 7 of the 4227, but it has an arch on the left side, similar to pin 2 it loops. It looks like a power fluctuation. What gives 12v to the 4227?
I am currently awaiting the arrival of my cable, which is expected today, for my overhead cam. This will allow me to relocate the 10" screen from its current position, as it has been obstructing my view. I will take a detailed picture of the 4227 and the IC4.
A: Yes, I removed them and checked each one and the rectifiers and all are good.
It's Pin15 of IC4 is the second PWM.
Following your instructions, I observed that it has an excellent PWM for the initial 6 to 10 seconds before entering a loop. I have PWM connected to pin 7 of the 4227, but it has an arch on the left side, similar to pin 2 it loops. It looks like a power fluctuation. What gives 12v to the 4227?
I am currently awaiting the arrival of my cable, which is expected today, for my overhead cam. This will allow me to relocate the 10" screen from its current position, as it has been obstructing my view. I will take a detailed picture of the 4227 and the IC4.
I successfully activated the amplifier with power supply with PWM and rectifiers.
It remains in clip mode; however, I can maintain its operation without any heating issues.
I do not observe any activity on the output FETs. Please correct me if I am mistaken, but this is a push-pull amplifier, correct?
I believe the push side is functioning properly, but it will not operate if the pull side is not working? What would be the next step?
It remains in clip mode; however, I can maintain its operation without any heating issues.
I do not observe any activity on the output FETs. Please correct me if I am mistaken, but this is a push-pull amplifier, correct?
I believe the push side is functioning properly, but it will not operate if the pull side is not working? What would be the next step?
Push-pull is typically used for a power supply.
For amps that have half rail voltage on the speaker outputs, they are generally referred to as full-bridge or H-bridge. Amps that use only one driven speaker output are typically referred to as half-bridge. Half bridge nearly always have ±rails. The full-bridge often have only a positive rail.
For amps that have half rail voltage on the speaker outputs, they are generally referred to as full-bridge or H-bridge. Amps that use only one driven speaker output are typically referred to as half-bridge. Half bridge nearly always have ±rails. The full-bridge often have only a positive rail.
