Hello all, I have a couple Old School Diamond Audio D3 1100.1 amps (class D amp) which the output FETs failed on. After replacing the outputs, it's still dead. I checked for the gate pulse on the outputs and nothing so that leads me back to the class D modulator board which is where the problem lies. For some reason, they put the board in a little plastic box and filled it with potting material so there is no way to repair it. They were pretty paranoid when building this amp as ALL the ICs have their numbers grinded off, even the OP AMPs in the preamp stage. They didn't want you repairing this thing. I attached a picture of the board and the class D module is right in the middle with the green sticker on it. What are my repair options? I have 3 of these things all needing the same part.
Attachments
It can be tons of fun but it is possible to get the "goop" off.You can try soaking it in acetone or etc but that never worked for me.
I actually used a butane torch and a small screwdriver very carefully until I could get it to split down the middle.The only problem I had was it wanted to rip off a smd resistor or two.
But luckily they were caught in the "mold" so I simply just installed a new one.
Good luck
I actually used a butane torch and a small screwdriver very carefully until I could get it to split down the middle.The only problem I had was it wanted to rip off a smd resistor or two.
But luckily they were caught in the "mold" so I simply just installed a new one.
Good luck
What is a good ICs replaced for the amp? I have one the power supply fet looks too caught on fire their melted extremely bad.
Please don't post in a repair thread that was started by someone else unless you are trying to help them.
Start a new thread if you need help with a repair of your own.
Start a new thread if you need help with a repair of your own.