Marantz pm66se

paulsoulsby · 7th August 2009, 07:08 PM

Hi,

I've got a Marantz PM66SE. I've blown the internal fuse (admittedly by turning it up too loud!). I bought an identical replacement (1.6A 250V quickblow) and it goes pop as soon as you turn the power on.

At first glance there isn't any other components that are completely black or clearly bust.

Any ideas where I should go from here?

thanks

Paul

tiefbassuebertr · 7th August 2009, 07:26 PM

I would check first the power devices of output stage so as the driver transistors. If there are no fault, remove the power amp from the power supply and check your power supply separately.
Either the power supply has a short (if the internal fuse blown again) or the fault comes from the rest of the power amplifier (if the internal fuse don't blown again)

7th August 2009, 07:08 PM	#1
paulsoulsby diyAudio Member Join Date: Aug 2009	Marantz pm66se Hi, I've got a Marantz PM66SE. I've blown the internal fuse (admittedly by turning it up too loud!). I bought an identical replacement (1.6A 250V quickblow) and it goes pop as soon as you turn the power on. At first glance there isn't any other components that are completely black or clearly bust. Any ideas where I should go from here? thanks Paul

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7th August 2009, 07:26 PM	#2
tiefbassuebertr diyAudio Member Join Date: Jul 2005 Location: D-55629 Schwarzerden	I would check first the power devices of output stage so as the driver transistors. If there are no fault, remove the power amp from the power supply and check your power supply separately. Either the power supply has a short (if the internal fuse blown again) or the fault comes from the rest of the power amplifier (if the internal fuse don't blown again)

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