Question about Yamaha RX-V450 Receiver

1 Answer

Amp. doesn't turn on

Amplifier has no power . fuse is ok and not blown. try to check transformer. help me pls.

Posted by on

  • Anonymous Jan 11, 2009

    same problem here !!!



    any solution ???

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

22nf 630dc/300ac capacitor inside back left board, i found mine on top of this board, a magnifine glass will help to check the writing on capacitor, replaced mine, works as new, g.knight. uk. ( rs components.)

Posted on Oct 04, 2009

  • 2 more comments 
  • jean louis BOIX
    jean louis BOIX Jul 02, 2011

    also same troubles
    i tried to fix with your support (22nf swap) ---> 100 % ok
    thank you for your support
    BR from southern france
    Jean louis

  • jean louis BOIX
    jean louis BOIX Jul 02, 2011

    hi
    same troubles, i tried your fix process (22nf to swap)
    100% OK, many thanks for your support
    best regards from southern FRANCE
    jean louis

  • Harbans Singh Jan 30, 2013

    Hi, Thanks. I fixed my amp as well by replacing C405 that horrible 22nF cap. Harbans from New Zealand

  • John Schrijver Mar 15, 2013

    Hi, this fixed mine also. Thanks. John from the Netherlands.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Why power fuse blown without connecting outputs


Your lucky that fuse was there or you would have blown your output transformer. Unless an amp tells you that it was made for D.I. work you have to have a lload on the outputs, matching speakers with output. 8 ohms is the norm.

Oct 23, 2015 | Audio & Video Receivers

2 Answers

My yahaha htr-5840 wont switch on. When I press the standby button thee is no click of the relay energising. I have checked and there is no power to the transformer. Fuse is ok, I have only found 1 th


i would check the bridge rectifier then trace back from there. its quite simple to check the b,rec heres a link. good luck mike!http://www.youtube.com/watch?v=dqkT6hF0O3E

Mar 11, 2014 | Audio & Video Receivers

1 Answer

No audio. Checked all the basics. Internal fuses are ok. Is this worth fixing?


Check power supply transformer, that could be last thing before deciding to throw it away.

-SS.

Oct 27, 2013 | Sony Stereo Am Fm Receiver Tuner Amplifier...

2 Answers

Dead receiver/amp.No sound no dial lights. Voltage ok at wall outlet, present at back of amp, but not at auxiliary built-in AC outlet on case of amp. All 4 fuses OK. On/Off switch seem OK. What is the...


the power transformer may have blown the primary winding causing no power for the secondary windings witch means that the main power board has no power

Mar 06, 2011 | Onkyo TX-SR501 Receiver

5 Answers

My xl ex70 is dead


There is a small glass automotive fuse that is located inside the unit next to where the power comes into the unit. You can check this fuse to make sure that it is not blown. If the fuse is blown, you can replace it. But chances are that it will blow again. But sometimes it will work for a long while.

Dec 08, 2010 | Audio & Video Receivers

1 Answer

Power will not stay on


Activated protection circuitry means that the amplifier is seeing conditions it does not like and is shutting down the power to prevent further damage.
Either you have a short in your speaker wires, in your speakers, or a blown amplifier.
Disconnect both speakers and turn on the amplifier. Does it still give the error message? If it does, your amp is blown. If it does not, carefully inspect your speaker wires and their connection. Make sure all looks good and reconnect the speakers and try it again. Still get the error message? You likely have a problem in your speaker cabinet(s).

Apr 21, 2009 | Onkyo HTR500 Receiver

1 Answer

I have a cambridge audio A300 V2.0 amplifier that wont power up. i've checked for power at the switch and there is power and i've checked on the main board at the fuses but there is no power there, the...


Hi there get a multimeter place across mains input on transformer,FIRSTLY DISCONNECT AMP FROM MAINS,set your meter to contiuity ,if good you should get a low ohms reading (resistance),then check the secondaries (output of transformer) either 3 wires or four going into amp board..if readings acroos all wires are low ohms then transformer is good if one is open ,transformer has had it ...hope this helps

Dec 08, 2008 | Audio & Video Receivers

1 Answer

Need a new transformer for an old kenwood stereo intergrated amplifier ax-31 cant find out where to get 1


let me give you a tip ;) power transformer has thermal fuse inside its tape-bounding area. try to locate it and check..transformer might be Ok and fuse has blown.

Aug 13, 2008 | Kenwood Audio & Video Receivers

2 Answers

Onkyo tx-ds676 dead no power up


power down the amp totally to reset processor, then try again. If still no go, may have blown internal fuses- replace and try again
.... or failed thermal fuse in mains transformer. this is a workshop repair as it involves mains voltage that can kill :)

Nov 24, 2007 | Onkyo TX-DS676 Receiver

Not finding what you are looking for?
Yamaha RX-V450 Receiver Logo

Related Topics:

667 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Audio & Video Receivers Experts

Larry Stiles
Larry Stiles

Level 2 Expert

286 Answers

jonpoint

Level 1 Expert

4 Answers

Are you a Yamaha Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...