Question about Marantz PM7200 2-Channel Amplifier
One common explanation is the capacitors fail after a number of years. The lineage of these electrolytic caps usually last about 10 years or so with regular operation.
This is a disappointment and many PC's, top of the line receivers such as yours 10-15 years old are plagued with these failing capacitors.
Suggest if you are DIY replace all electrolytic. If not look for a electronics repair local and get an estimate.
the repair manuals are available.
The capacitors does not have to leak to fail. Also check for open/cracked solder joints around the power supply and power amps.
I have repaired several PC's and receivers for these defects with only an inspection lamp and multi-meter.
Purchasing a used replacement of the same age will likely require similar repair. Some older units are more reliable?
Good solder skills are critical and if you DIY practice on scrap boards before attempting.
hope this helps?
Posted on Dec 15, 2016
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Posted on Jan 02, 2017
As dunnbiker said, get a headphone to RCA adapter. After that you may find that you still need a bit more gain out of your ipod. There are lots of solutions. Google preamp or check out Sound Shocker by PHP Audio.
Posted on Dec 20, 2009
You can check the fuse with a battery and a bulb. Take the fuse out and use it to make a circuit with some wire, the battery and bulb. If the bulb doesn't light it has gone.
Apart from that other things to check are the power switch, to see if it works and the transformer.
It might be worth buying a cheap Ohm meter, if you haven't got one. You can check most of the parts in the power supply with it. By the way if the fuse has blown, buy a few as you might find it could blow again when you try it again. If it does you are looking at a device (such as a transistor) that as shorted and acting like it was a piece of wire. Which is easily found with an Ohm Meter!
Posted on Sep 28, 2010
So something is making a hum inside the unit? Well the answer is to listen to what is making the hum, with your ear (a drinking straw held to your ear will help locate where it's coming from). Once you have found the part "huming" replace it. See if that cures it.
Posted on Jan 22, 2011
The top link is for a manual for your model. The second link is a Fixya link concerning "no power". I'm not sure why you are looking for fuse but, have to assume it's a no power issue.
The above link is a support link for Marantz. Hope this helps.
Posted on Mar 10, 2011
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