Have you confirmed that you have output from all 4 voltage regulators (7815, 7915, 7812, 7912...)?
What output transistors are being used in this amp?
You stated that this amp has two halves. Are both identical?
Are there any connections (wires, jumpers...) between the two boards?
What output transistors are being used in this amp?
You stated that this amp has two halves. Are both identical?
Are there any connections (wires, jumpers...) between the two boards?
Yes I do have both the +- 15 volts and the +- 12 volts This amp uses Irf640 and Ifr9640's
Both halves are identical but there are no internal connections.. All the bridgeing is external..
I pulled the potted box out yesterday.. they used some monster epoxy it seal that thing..
Both halves are identical but there are no internal connections.. All the bridgeing is external..
I pulled the potted box out yesterday.. they used some monster epoxy it seal that thing..
Ok sorry perry..like I told 1 moreamp..work has caused car audio to go on the back burner.. but now I am back on this project...
Ok updates... after messing with the amp today I found a trace about half the size of my hair that was burnt fixed that and now the amp powers on... relays activate and i get sound . The problem is now that its horribly distorted..sounds kinda like a record being scratched... What should I look at?
Ok updates... after messing with the amp today I found a trace about half the size of my hair that was burnt fixed that and now the amp powers on... relays activate and i get sound . The problem is now that its horribly distorted..sounds kinda like a record being scratched... What should I look at?
yes i have access to a scope but i do not have it on hand. I'm still working with Massive to try to get a schematic.. I have talked to one of the reps and he told me he would contact a tech because massive no longer services this amp... Where should I probe with the scope when I get it? I also have a signal generator now too..
well it appears the my scope took a dump on me.. went to power it up, the light comes on but no one appears to be home.. Looks like I'm going to have to get a loaner.. Oh and I forgot to mention before Perry.. I got the epoxy out of the little box without ripping any of the components off.. I found the two other little 8 pin IC's that you where telling me about in there... the numbers have been removed though...
What does this little board do/ control?
What does this little board do/ control?
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