Question about Marantz SR4002
If you've checked all your speaker connections and there is no short, reset the amp by holding down the "S. Speaker B", "ATT", and "EXIT" buttons for three seconds.
Posted on Jan 21, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Generally speaking, an amp attempts to protect itself from heat, shorts, overloads and operator exuberance by refusing to turn on or stay on.
Overloads can be from excessive periods of high output or marginally low impedance loading by the speakers; and shorts would be wiring issues or a speaker blowing up.
You should be able to feel if it's hot. WHY is it overheating? Make sure it has sufficient ventilation on all sides and that vent holes are not blocked by dust balls. Ensure the fan (if equipped) is running as designed (some only operate on demand). Clean dust and debris from it.
If the amp comes back on after cooling, you're lucky. They only have so many self-protection cycles in their lives so continuously resetting or cycling their power without addressing the cause can do more harm than good.
If it protects immediately on a cool power up you should disconnect the speaker connections and try it 'naked'. If it comes up then diagnose which lead(s) are shorted. If it does not come up the problem is internal and should be left to an experienced and competent hands-on tech.
Check for loose speaker connections at the speaker as a root cause for intermittent shutdown.
Posted on Apr 19, 2011
Tips for a great answer:
Oct 16, 2012 | Marantz SR4002
Apr 18, 2011 | Marantz SR7002 6.1 Channels Receiver
May 14, 2010 | Marantz SR4002
Apr 17, 2010 | Marantz SR4002
Nov 02, 2009 | Marantz SR4002
Sep 10, 2009 | Onkyo TX-SV373 Receiver
Sep 06, 2009 | Marantz SR4002
Dec 04, 2012 | Marantz SR4002
Oct 26, 2012 | Marantz SR4002
327 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: