Originally Posted by Nick4K
My first unit is sended two times, than i was getting a replacement by the store. A brand new, after a couple of months the same problem, just send it back for repair two weeks ago.
Exactly what you say, the claim the can't find the problem. Its giving me headaches over a year.
I have a couple of questions:
Are the loose binding post problems only familiar with Marantz devices or also other brands like Denon ?
Is it better to try banana plugs, because than I can leave alone the screw terminals. Or do get loose inside the receiver where the terminal is soldered on (so not the terminal itself) ?
Verstuurd vanaf mijn SM-G900F met Tapatalk
It really does not matter whether banana plugs, spades, or simple wires are used. The loose contacts occur well inside the speaker binding posts.
Your case also proves the point that because it is a design flaw, most units would exhibit the problem at some point in time. Even a brand new replacement would have the same defect.
Below is a direct quote from Mista Muffin's previous post above.
"The binding posts themselves are gold plated and have a little gold "tongue" that sticks inside the case. The motherboard/PCB has a piece of silver metal that is soldered to it. That metal rises up and bends 90 degrees right where the binding post's little gold tongue enters the case. The problem is that the gold tongue and silver piece only make contact by pressure. They are both slid inside a little plastic housing. With enough flexing of the binding posts the little gold tongue no longer makes good contact with the silver leg that connects to the motherboard. I used a Dremel to remove the plastic housing so I could see where the gold tongue and silver leg were making contact and laid some solder across the two. I would hope that if this issue is widespread that it will be changed in future models."
There are pictures and close ups of the area where the loose contact occur in previous posts. Check them out.
The defect is due to a "design flaw" of the binding posts that cannot be repaired thru warranty. I am positive that the cost to fix, thru repair, of the design flaw will be more than the cost of the receiver itself so you must not entertain any hope that an authorised repairer would really repair your unit. So, if you cannot repair it yourself then the only alternative is ask for your money back
so you can start over again purchasing a suitable receiver.
I only know of the 2016 Marantz models having this defect. I personally prefer Marantz despite this defect because I can fix it myself, than a Denon with a sound that cannot be fixed.