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Brought my first amp -T1 audio LS 500.2. After installing have found the power goes off after about 30 secs, have triple checked wiring, it all seems fine. The remote connection to the head unit works fine as the LED indicator illuminates, the main power LED doesn't though. The fault LED isn't illuminated either so this indicates the amp isn't faulty. Have tested the sub on another amp and it works fine. I disconnect all the connections and left the amp for a couple of hours, reconnected it and the main power LED come on, music played for about 30 seconds and then it shut down again. Can anyone help please its driving me mad

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5 Suggested Answers

  • 1 Answer

SOURCE: Yamaha RX-V657 Zone 2

Suggestion by clarkent22

I called and spoke with Yamaha support staff (Chuck) who was very helpful. I was able to get my issue resolved hopefully this works for you too.

Couple of solutions:
1) Go into the Menu setting (Manual SetUp/Speaker Set) and make sure that you do not have Presence Speakers or Suround Back Speakers
2) Also in the Menu settings (Manual SetUp/Options/Multi Zone Settings) make sure that your Zone 2 Amplifier is set to "Int" (assuming you are not using external amp
3) Zone 2 can only accept an analog signal (not digital)... so there are two steps to this one. First, make sure that you either run only analog, or if you run digital and analog then you need to select "Analog Input" on the front of the unit. If yours was working earlier, my guess is that your input settings got switched to digital (or auto) You need to have analog set up for each specific external source (DVD, Cable/DTS, etc)....
4) This model receiver will only let you control Zone 2 with the remote control. You can power it on the receiver unit. But to select your source you have to press the Amp button, then the ** button. Then you control Zone 2 and you can toggle sources and adjust volume. (Check your owners manual for programing remote for zone 2.. think I pressed the "code" button and then 2999.)

Hope this helps... it worked for me If not call Yamaha they were very helpful.

Posted on Dec 05, 2007

tech48
  • 624 Answers

SOURCE: Shutdown protection? HELP please

All of the Denon recievers I have repaired (over 100) that shut down after a very short time are going into protect mode. The display lights up and after about 10 seconds the display goes out and the standby led blinks red.
I have found that they have one of 3 possible problems and they all require that the reciever be taken apart and fixed at component level. No way to tell what your problem is until it gets put on a bench and troubleshot.

Problem 1. This is the most common problem. One of the front channels shorts out. On the big heat sink the front channels are at each end. It is the front left channel (close to the display) This requires that the output transistors be replaced as well as some driver transistors and some resistors and a capacitor. Lots of work for a blown channel. Denon has put out a bullitin to upgrade the bias transistor and change a couple of resistors to help compensate for this failure. That channel overheats more than any other channel.

Problem 2. There is a resistor that is right next to the preamp board that opens up. It is a 10 ohm 1 watt resistor and when it opens, it causes the unit to go into protect.

Problem 3. The +12 volt regulator fails. It is in the power supply area on a smal heat sink right next to the -12 volt regulator. Generic part number is KIA7812 It also causes the unit to go into protect.

Most decent repair shops can fix these from about $120 up to about $200. Depending on which problem it is and how fast they are at finding the problem. Most charge labor by the hour.

Posted on Jun 18, 2008

SOURCE: denon avr 2105 died (3 times) dead AVR2105 faulty avr-2105

I have had this same problem. What is going on? Mine has blown twice, now out of waranty. What am I going to do?

I will never buy Denon again. ****!

Posted on Jul 22, 2008

  • 2 Answers

SOURCE: no output to Zone 2 from preout to 2nd power amp for second room speakers

OK, From what I am understanding is that you both are trying to uilize a digital audio source (HDMI cables are digital audio only) and hence this is the problem. You can only use an analog audio source (connection) to utilize the audio output to zone 2. A simple soultion is to use the analog audio in conjuction with the digital. Connect the digital (HDMI, Optical, Coax) to the main zone and the left and right audios to zone 2.

Posted on Jun 27, 2009

dunnbiker
  • 8546 Answers

SOURCE: Sony STR DE845: rear speakers not working, three fronts are OK.

The rear amp is malfunctioning (duh). Take it to a tech for a real diagnosis.

Posted on Jan 21, 2011

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