I'm working on an MMATS D3000.1 amplifier with the green driver board. It's confusing me as I can't get it to work, but the green board does not have the HIP4080 installed (I thought they removed it in the previous repair attempt). Apparently without the HIP4080 it oscillates, but it has a big noise and a loud POP when turning on and off. The integrated TLC2274 gets very hot, I suppose it will have some problem. I asked in another thread, replacing the IRFB4710 since it was discontinued, with the IRF3710Z, but of course, without having the HIP4080 installed, will the 3710z still be a good replacement for the IRFB4710? What reference are the integrated ones scraped from the green plate installed as a driver?
Post a photo of the driver board.
The originals, when available, are generally the best option but I used the 3710Z extensively and never had a problem with reliability.
I don't remember the 2274 getting hot. What's the voltage across its supply terminals?
The originals, when available, are generally the best option but I used the 3710Z extensively and never had a problem with reliability.
I don't remember the 2274 getting hot. What's the voltage across its supply terminals?
I agree that it appears to be defective if that resistance was with at least one of those pins out of the circuit. Do you have one in stock?
Unfortunately I don't have stock. I'm going to place an order. When I have it, I will write again. Going back to the green driver board, is it definitely not equipped with the HIP4080? What reference will the scraped integrated ones be?
The other thread said the 14p ICs were IRS21844s. You can easily confirm with the datasheet, checking pin connections.
The IC socket is simply to allow the board to be plugged into the original 4080 socket. The driver board is used in place of the 4080. It would be interesting to know if the 4080 could be plugged directly into the main board and the amp would function as they did before the driver board.
The IC socket is simply to allow the board to be plugged into the original 4080 socket. The driver board is used in place of the 4080. It would be interesting to know if the 4080 could be plugged directly into the main board and the amp would function as they did before the driver board.