Question about Onkyo TX-DS777

2 Answers

Onkyo TX-DS777 goes straight to protection mode

When I press the stand-by button to turn the unit on it turns on then as soon as you hear the speakers click in it goes into protection mode. This is even with everything removed and the unit sitting on a bench stand alone.

Posted by on

  • wise_guy47 Nov 05, 2008

    I have exactly the same problem with my HT-R520..... may have been caused by overheating is what I was told.... and is now a voltage/current issue with a rectifier or diode somewhere in Power Supply. Needs to be sent to a repair shop. Not a problem for a DIY'er.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

My Onkyo TX-DS77 has very low sound output even when the whole volume is turned on. Please assist me.

Regards,
Joseph

Posted on Sep 01, 2011

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 142 Answers

Hello.You have shorted audio outputs. One of your channels has shorted output transistors. If your unit uses output ICs then one of them is shorted. Both types ( individual transistors or ICs ) are located on the large finned heat sink. The parts are available from http:\\www.tritronicsinc.com. good luck

barneyluc

Posted on Oct 19, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Onky TX-DS777, no sound from speakers


Are the speakers selected for A or B or AB check the speakers by using a 1.5 volt batter on the cable going to the speakers, if you get a sound from the speaker, you know they are ok, if not, speakers are faulty.

Apr 01, 2014 | Onkyo TX-DS777

1 Answer

Receiver goes to stand by when turned on. All components and speakers disconnected and still goes to stand by. Any suggestions?


This is most likely a "protect" mode. A problem has been detected and the unit shuts down to prevent further damage. The most common cause of this are defective output transistors. Plan on a parts cost of $25-$40 for this repair.

Dan

Jun 15, 2010 | Onkyo TX-SR500 Receiver

1 Answer

Hi, after i turn the power on and then press the stand-by button, it clicks off to stand-by mode instantly. This is an Onkyo TX-SR500


This indicates that the system is going into protect mode. First disconnect all speaker wires (with the power cable disconnected). Then turn the unit on and see if it sill shuts aff ofter a few seconds. If it does not, then you have a problem with the speakers or speaker wires. inspect the wires at both ends for frayed strands that may touch. If that all lookd good, plu the speakers in, one at a time, until the problem reappears. Be sure to turn the sytem off before plugging in any speaker just to prevent any accidental short which could be catastrophic. If the system goes into protect mode with all speakers disconnected, you probably have a shorted output transistor.

Apr 05, 2010 | Onkyo TX-SR500 Receiver

1 Answer

Hi I have an Onkyo TX-SR304E. When I try to play music via a dvd/cd player, it lasts for about 20 seconds then shuts off with the STAND BY light flashing on and off.When I try to turn it on , off it goes...


The unit is in protect mode. A problem was detected in the final stage of the amp and the unit shuts down to prevent further damage to either the amp or speakers. Check the speaker wires to be sure that they are not crossed anywhere. If with the sepaker wires disconnected, the amp still enters protect mode, the problem is internal to the amp. This is usually defective output transistors. Expect a parts cost between $15-$40.

Dan

Dec 04, 2008 | Onkyo Audio & Video Receivers

1 Answer

Onkyo TX-NR905 Protection Circuit Activated


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,
Dan

Jul 28, 2008 | Onkyo TX-NR905 Receiver

2 Answers

Onkyo 870 relay problem?


do you have speakers hooked up on B?

Jun 26, 2008 | Onkyo TX-DS777

1 Answer

Amp protection circuit


disconnect all speaker leads at the unit,power it up then see if it'll stay on. if it does, reinstall one speaker lead at a time until it goes into protect mode. that speaker line will probably have a short in it. Just run a peice of skr wire straight from the unit to the sspeaker in doubt, hooks em up see what happens. if it shuts down have that skr ckd.if it works, just rip out the old shorted line and run new stuff.

Dec 29, 2007 | Onkyo TX-NR801 Receiver

1 Answer

Onkyo receiver TX-DS777


You have a bad amplifier left or right whichever pops if both sides pops then it both amps

Dec 25, 2007 | Onkyo TX-DS777

1 Answer

Onkyo tx-sr800 PROTECT mode


Hold video1 and press speakers A button, it will say "clear" If the message protect appears again, then its service time.

Aug 28, 2007 | Onkyo TX-8511 Receiver

1 Answer

Power light on, unit will not turn on with push button


When power was intermittant, were there any other discrepencies or audible power deprivation to the speakers? Your problem has many possibilites from fuses to major amplifier problems to common power supply failures. Being intermittant then dead may still be a simple fix, but not without some physical intervention of test gear. Sorry, Jaszy

May 30, 2007 | Onkyo TX-DS777

Not finding what you are looking for?
Onkyo TX-DS777 Logo

Related Topics:

504 people viewed this question

Ask a Question

Usually answered in minutes!

Top Onkyo Audio & Video Receivers Experts

D. E. Hev

Level 3 Expert

1059 Answers

gbob59

Level 3 Expert

2963 Answers

Matthew Spark
Matthew Spark

Level 3 Expert

1042 Answers

Are you an Onkyo Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...