Question about Marantz SR4600

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The amp will not turn on from stand by. Each time we try, it turns on briefly, a sign that says "protect" shows up on the screen and the amp then turns off once more, back to stand by. We have tried detaching the power cable and resetting the amp by holding the "7.1 Ch input" and "Att" buttons similtaneously for 3 seconds or more, in order to reset the amp, however this has no effect. Do you know of any other possible solutions.

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6ya6ya
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Posted on Jan 02, 2017

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techman
  • 3130 Answers

SOURCE: can't get receiver out of "protect"

You have a problem in the main power supply or the output circuit in this reciver. If you have any solid state repair experience, go inside and unsolder or take out the main output devices, and try to turn on the unit. If it still does not come on, your going to need to troubleshoot the power supply. If it does come on then the output devices you took out are bad. If you have no training in this stuff, seek out a pro to assist you in this repair. There are no user replaceable parts inside these units. Good Luck

Posted on Dec 28, 2006

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SOURCE: can't get receiver out of "protect"

My Receiver is on standby mode, no display & does not switch on suggest soloution Pramod R. Pandey 302, Gloma Apatment, At. Mount Mary Steps, St. John Baptist Road, Bandra (W), Mumbai 400050 ? India Tel: 91-22-26412151 Mob: 91-9869256420 pp070862@yahoo.co.in Date: 08-09-2007 To, The Manager, Technical Support, Marantz Europe B.v P.O.Box 8744, 5605 L S Eindhoven, Netherlands. Sub: MARANTZ SR 4600, S.No. MZ000551008756 Dear Sir, This is to inform you that I am a Merchant Ship Mercantile marine officer & our ship had been to the port Antwerp some where in December 2006 & I Purchased The above AV receiver from Nani Ki Dukan that is the duty free shop in Antwerp. The above Receiver is in the Standby mode & does not switch on only the power LED lights up, but the system does not turn on, I consulted your authorized service centre in Mumbai i.e. Rivera International where they told me that since the set is not bought in India they cannot help me, but after persuading them they checked my system & informed me that an IC named NJU3430F is bad & needs replacement, I told them to go ahead but they do not have stock & they cannot procure one for me, in this regard can I please request you to kindly dispatch me the said IC NJU3430F & possible service manual to get it fixed in India. I will pay you for the courier & spare part charges by wire or by DD which ever way you advise as without this spare part the receiver is just a show piece. F.Y.I. I wrote to InstoComp, Inc. dba IC Power Exchange steve@icelect.com Tel: 813-672-8300 Fax: 813-672-8335 http://www.icelect.com & this was there reply. Quote ? *** Part NOT Available *** Although we have over ? 812,173 ? different devices in-stock we can ship today, I regret to inform you we do NOT have this device in-stock or availability (at this time). We are always acquiring new inventory, should this part become available in the near future we will contact you. Thank you for this opportunity to quote, I hope to hear back from you soon.? Unquote. I hope at least you will help me & do the needful to get this AV receiver fixed up at the earliest. Thanking you, I Remain, Yours truly, Pramod CC: Marantz America, Inc. 1100 Maplewood Drive, Itasca, IL 60143, U.S.A

Posted on Sep 12, 2007

tech48
  • 624 Answers

SOURCE: In a guest house and

Have you tried the reset procedure I am outlining below at the end of this post?

If you have not done it exactly this way, try it. The "protect" that is displayed is the protection circuit being activated. Most times it is activated is to prevent further damage to the unit. Sometimes it can be activated from the unit being over-driven (played at very loud volume for prolonged periods or having the improper speakers or a bad speaker).

If this reset procedure does not work, you need to take it in for service preferably at a Marantz authorized service center because the problem you are having is not something that can be fixed by any sequence of keys being pressed. It normally happens when the unit has a blown channel. That is not the only reason, but it is the most common reason.

If you have the proper tools, a schematic, and knowledge of how to check electronic components to know when they are faulty, you can then fix it yourself. If you do not have these tools and the proper skills, you can cause much more damage to the unit than you started with, even to the point of starting a fire or making the unit un-fixable. This type of unit is not an easy one to repair, even for a well trained electronic technician. I work at an authorized Marantz service center and have repaired many of these and other receivers over the past 17 plus years.

Be aware, by using this procedure and then turing the unit on can sometimes cause more damage to the unit if it has a shorted channel or other problem that makes it draw a lot of current. This method is meant for qualified service technicians to perform after they have checked the output stages for any problems and the unit is still in the protect mode. You have been warned, so don't say I didn't tell you it should be taken to a service center first. If you see or smell any smoke or buring smell, unplug the unit immediately. You may want to have one hand on the plug when you do this, just in case.

Here is the proper reset procedure:

SR4500 Turn the unit on (standby without pressing the power button), press and hold the 7.1CH INPUT and ATT buttons simultaneously for3 seconds or more.

If you have found this free information helpful, a "FixYa!" rating would be appreciated, and if you need any more help I am happy to offer it, just ask!

Dave

p.s. I have told you all the warnings and suggested a service center because this is a very good receiver and I would hate to see it damaged more than it may possibly have already. It is possible that this reset procedure will return the unit to normal operation, but more often than not, the "protect" circuit activating means that you have a serious problem that can not be fixed by anybody without the proper training.

Posted on Jul 09, 2008

  • 1 Answer

SOURCE: need to give a FULL RESET in a MARANTZ SR5004 RECEIVER

marantz sr5004 power led is blinking very fast pls give me the solution

Posted on May 25, 2010

sonicboomele
  • 1557 Answers

SOURCE: For no reason I know of, my Marantz SR8001 will

blinking power lights are a factory setting to inform the customer there is an internal electronic fault. and the unit needs to be repaired by a service pro in 99% of cases the owner can do nothing to fix it.

send it in

best luck

Posted on Oct 14, 2010

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