Question about Denon Audio Players & Recorders
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Posted on Jan 02, 2017
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 email@example.com 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 firstname.lastname@example.org 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
The problem is not with the inputs. This unit is in protect because a problem has been detected in the output section. Try disconnecting the speaker wires and turning it on. If the unit remains on, there is a short in one of the speaker wires. If the unit still shuts down, there is an internal problem that will require repair. It sounds like this is a new piece. If so, it should be covered under warranty.
Keep us posted,
Posted on Jul 28, 2008
Protection circuit turns off the unit because of critical conditions- wrong power supply voltages or one of the power amplifier channels is bad. First, visual inspect the power amp board near the heat sink for burned resistors, test outputs for a short. If there are no problem you may try to turn the unit on and you have several second before it shuts down to check power supply voltages and power amp output voltages and bias, then ... Long story you'd better take it to a repair shop or repair at ebcelectronics.com
Posted on May 09, 2009
SOURCE: Protect keeps flashing
Protet mode is a special diagnostic mode that starts when a fault is detected.
When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.
Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.
Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.
If you do all the above and still get Protect, then there is a real fault.
In that case the unit may be disassembled and tested to find the fault.
If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.
Posted on May 29, 2009
Your result indicates the unit is not passing its power up self test. The first thing to try would be to remove all connections to the unit and try to power up. If it still mis-behaves, the unit has an internal problem best left to pros unless you're pretty good digging through circuitry. If it comes up stable, then reconnect things one at a time until the issue occurs again. Detach the offending connection and look for issues in the cables or the connected unit.
Posted on Oct 23, 2010
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