Question about Onkyo TX-SV373 Receiver

1 Answer

Amp keeps switching off

Hi ive got an onkyo tx-sv373 and i got home from work today and turned it on and after about 1 second it switched off and the stand by light started flashing and now this is all that happends every time i turn it on, can anyone help

Posted by on

  • 5 more comments 
  • Anonymous Nov 09, 2007

    Onkyo TX-SR804 7.1 Channels Receiver does not stay on. It automatically turns off within a second after I turn it on. Happens everytime now......TJ

  • grcub4me Nov 18, 2007

    hi ive got an onkyo tx-sv373 and i got home from work today and turned it on and after about 1 second it switched off and the stand by light started flashing and now this is all that happends every time i turn it on,
    can anyone help

  • Candyk Feb 27, 2008

    Our receiver keeps blowing a fuse and stays in Standby! Does anyone have any suggestions as to the problem.?

  • Eastcoastron Mar 21, 2008

    I have the same exact problem. Has anyone had theirs repaired, I was wondering how much it cost to fix? Thanks, Ron

  • Norsch Nov 20, 2008

    Power on ... charging condensators ... after very short delay:enters with blinking LED.

    Prior to the issue; Exposed to some heavy use in a 5.1 speaker configuration, though working after this.

    B-Speakers also connected though not engaged while incident occurred.

    Schematic for this with measurepoints and reference voltages -anyone?

  • lalala848 Mar 05, 2009

    I forgot why i put the receiver in the closet: its "power off" mood swings.  I've noticed that when the stand-by light is flashing, it's in one of it's moods.  Once light stops flashing, e.g. three days later, the receiver will work... for awhile.

  • wetztv Apr 18, 2009

    My Denon AVR-1600 amp simply shut off last night.  Came back on for awhile then quit again.  Power light still on.  Any ideas?  Should I fix or trash?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 3,130 Answers

There is a problem with one or both of the audio amp circuits. The amp is going into a protect mode as to protect and save your speakers. Sorry but there is no simple fix. this will need to go to the shop to be diagnoised. Good Luck

Posted on Apr 29, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

My stand by light flashes on my onkyo tx-sr501

Check output transistors for short, change emitter resistors

Mar 30, 2014 | Onkyo TX-SR501 Receiver

1 Answer

Onkyo tx-ds656 stand by power light comes on volume control knob rotates to max but display or unit wont start

Try factory reset: while holding the(CD) button on front panel,press (POWER) button.
After "Clear" is displayed the unit should be back to its factory default. :) If this dont work for you take the unit to be checked by service . :)

Jan 24, 2014 | Onkyo TX-DS656 Receiver

1 Answer

I got an Onkyo amp- TX-SR674, don't know why i turn on it but after 2 seconds, it will switch off and standby light is flashing, can many times. Please help

If the stand by red light starts blinking after 4 seconds of switching On it indicates an output short circuit. In all probability one of the Amplifiers output stage is defective and to prevent speaker damage the protection circuit is getting activated in 4 seconds. You will need professional help to fix this.

Sep 11, 2011 | Onkyo Audio Players & Recorders

1 Answer

Hi, I have a TX-8511 Onkyo. The left channel is silent. It's not the speakers or the wiring - checked and swapped. Using 8 ohm speakers and switch is set to 8 ohms. Does the same thing on both A & B -...

hello 1 of the transistor could be dry jointed if joint ok then you may a leak on the transistor also check the capacitor around the transistor for bulging all the best


Sep 13, 2010 | Onkyo TX-SV373 Receiver

1 Answer

When I push the stand-by/on button - stand-by blinking


Sep 10, 2009 | Onkyo TX-SV373 Receiver

3 Answers

Onkyo tx-sr605 remote codes

Just go to support.. all the manuals are online in pdf form

Dec 14, 2008 | Onkyo TX-SR605 Receiver

1 Answer

Will not power up but stand by light is powerd up

I have onkyo tx-ds575 and i need to conect it to my tv and have audio from a LCD flat panel.

Oct 05, 2008 | Onkyo TX-DS575 Receiver

2 Answers

No Sound

Called Onkyo and here is the solution they gave me.

1. Turn on unit.

2. Press and hold VIDEO 1 button.

3. While pressing VIDEO 1, press Speaker A button.

4. You should see "CLEAR" on the display for a second and it will go on stand-by mode.
5. Turn on the unit and check if sound is back.

Hope this helps

Mar 30, 2007 | Onkyo TX-DS575 Receiver

Not finding what you are looking for?
Onkyo TX-SV373 Receiver Logo

Related Topics:

694 people viewed this question

Ask a Question

Usually answered in minutes!

Top Onkyo Audio Players & Recorders Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers


Level 3 Expert

5390 Answers

The Knight
The Knight

Level 3 Expert

75283 Answers

Are you an Onkyo Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides