Good question.When you say everything else seems fine what do you mean exactly?
Do the various source choices light up on these amps? That's the only other thing I can think of as 'everything else'Good question.
There's no sound and at least? 3 indicator lights don't light.....
but everything else seems to work fine What else is there?
If you can make use of a service manual Harry, then you'll know it's your cure - once you know what you're curing.
The first click on the top search result immediately downloads it all as a PDF.
Otherwise there's not much you can do other than get someone to repair it.
In days of old Al, that was a reasonable assumption. But things have changed. There's certainly no power to some of the lights - but sadly for the OP, his internal fuse(s) probably are OK .No lights means no power so all fuses cannot be fine....
You are right there. I would have expected things like lights to be on a circuit seperate from anything else but I am obviously behind the times...In days of old Al, that was a reasonable assumption. But things have changed. There's certainly no power to some of the lights - but sadly for the OP, his internal fuse(s) probably are OK .
Last night I was looking at that PDF service manual. Even the block diagram (which simplifies things) is surprisingly complicated for what, on the face of it, is a simple budget amp. Once you get into the full circuit diagram.....there are volt regulators / control ICs etc....several things that could be causing no lights / sound.
Bring back the simple old days I say
Just the one actually.Exactly how many fuses are there?
That one was all I could see on photos of the insides thought it odd that the OP said 'all the fuses', however you are right it needs a qualified engineer to have a look at it I feel.Just the one actually.
It was a fusible resistor that went open circuit to cause permanent mute on my own Marantz amp.....looks like there's a few of those in the PM6003, but I wouldn't blame the OP if he doesn't want to get involved.