Hi,
I have a NAD C370 that goes into protection mode when I turn it on. I have tried the protection board fix, but the behaviour is the same. If I put the amp into bridge mode it stays on (ie, out of protection mode) and at least one of the smaller heatsinks on one side of the amp get very hot (eg, around Q315).
Does this likely indicate a problem there, or something further down the line? Does anyone have the service manual and/or schematic? Everything I find online seems to either be a dead link or want payment.
Cheers, Jamie
I have a NAD C370 that goes into protection mode when I turn it on. I have tried the protection board fix, but the behaviour is the same. If I put the amp into bridge mode it stays on (ie, out of protection mode) and at least one of the smaller heatsinks on one side of the amp get very hot (eg, around Q315).
Does this likely indicate a problem there, or something further down the line? Does anyone have the service manual and/or schematic? Everything I find online seems to either be a dead link or want payment.
Cheers, Jamie
Sign up here. https://www.hifiengine.com/manual_library/nad/c370.shtml
Check the output stage DC bias current (VR302), Q315 is part of that circuit.
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