Question about Sony MHC-G100 Shelf System

1 Answer

Standby led sony MHC-GNZ888D blinking (intermitent)

The standby led was blinking, and I cannot switch on the unit.
But it is intermittent, sometime the unit working properly and suddenly switch off and standby led blinking again.
Which the part was problem?

Posted by on

  • 4 more comments 
  • patno72 Jan 14, 2009

    Dear Nuwan chinth, thanks for your answer.
    This is helpful, but it is so global answer : )
    Could you narrow the problem ?
    If the problem on the power supply or power amp, which the component was broke ?
    Any body,s suggestion are welcome




  • patno72 Jan 15, 2009

    I have checked the connection , and no problem.
    When problem occured , I hear sound like mousquito sing at power supply part.
    But when the unit working properly, the sound (mousquito sing) is mute
    is it problem problem caused the condesator or ic or transistor or zener diode ?

    Thanks



  • patno72 Jan 15, 2009

    Dear Nuwan, Thanks for your suggestion.
    Where is the position of the relay, on power supply board or on Power amp board ?

    Thanks


  • patno72 Jan 15, 2009

    Thanks for your fast respone.
    A little question : on the manual guide said, if we close the ventilasi of the fan, the standby led will blinking.
    What is the sensor on the unit to detect it ? Is this temp sensor or light sensor or other ?





  • patno72 Jan 16, 2009

    I'll try to send the manual to you.
    I will explore the unit to check the relay, and inform you for the result
    Thx


  • patno72 Jan 21, 2009

    I have explored the unit.
    But I did'nt find the relay.
    any suggestion ?

    thx


×

1 Answer

  • 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.

    New Friend:

    An expert that has 1 follower.

  • Expert
  • 111 Answers

Power amp.or power supply printed circuit board.

nuwan.

Posted on Jan 13, 2009

  • 2 more comments 
  • nuwan chinthaka
    nuwan chinthaka Jan 15, 2009

    first of all check the power supply for loose connections.



    then try others.

    i will help you.

    nuwan.

  • nuwan chinthaka
    nuwan chinthaka Jan 15, 2009

    ok,please observe one of relay swiched when the problem occured.it will happence simultanionsly.it is speaker protection or stanby relay.please tell which relay turnd on .stanby relay is closed to power suplly circuit and anotherone is closed to speaker connector.

    nuwan.

  • nuwan chinthaka
    nuwan chinthaka Jan 15, 2009

    please find the relay yourself.power relay can place power supply board and speker protection board can place closed to power amp board or bouth can placed same board the power amp board.

    nuwan.....

  • nuwan chinthaka
    nuwan chinthaka Jan 15, 2009

    IT SHOULD BE THERMISTER.closed to fan or heatsink.(2pin device).

    IF YOU HAVE ANY OF MANUAL PLEASE EMAIL IT TO ME.

    roshanw@ccl.lk



    nuwan.

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Sony mhc-rv888d standby light is flashing


Output ic stk403-120 changed but still same problem.

Jan 04, 2013 | Sony MHC-RV888D Shelf System

1 Answer

Mhc-rg222 red light blinks power button wont turn on unit


Check the back of the unit for speaker wire shorts, if everything looks fine suspect the output ic's in the stereo.

May 26, 2012 | Sony MHC-RG222 CD Shelf System

1 Answer

Sony gnz888d stanby bulb is blinking


Check the back of the stereo to make sure none of the speaker wires are shorted, if okay! it is one or two audio output ic's that are shorted causing the protection circuits to activate to prevent further damage.

May 01, 2012 | Sony Audio Shelf Systems

1 Answer

I HAVE A SONY MHC-GT444 KEEPS SWITCHING TO STANDBY


Check the back to make sure no speaker wires are shorting, if okay! the audio output ic's in the receiver are suspect.

Apr 28, 2012 | Sony Audio Shelf Systems

1 Answer

The system is always in standby mode and do not turn ON


The problem you are describing is typical of audio output ic problem when there is a high current load the protection circuit kicks in preventing further damage. But lets check a couple things! turn down volume, power off, and remove speaker wires from the back. now power on, if protection kicks in the audio ic needs to be replaced, if it powers up properly checks wires for shorts and speaker issues and hook up one at a time until protect comes on revealing the problem.

Mar 03, 2012 | Sony MHC-GX470 Shelf System

1 Answer

Sony mhc ag590s standby button want switch on or off


VENDO UNO DE ESTOS MHC-RG590S, exc estado, cordoba, arg.

Jan 12, 2012 | Audio Shelf Systems

1 Answer

Sony hcd-gx470 manual


My Sony Mini MHC-GX470 have been working until a power outage yesterday and now it will start coming on the goes back to standby mode. I can hear it going through the system, starts the radio and immediately goes to STANDBY.
I need HELP!!!!!!!!!!!!!!!!!!!!!!!!

Jan 07, 2012 | Sony MHC-GX555 Mini Hi-Fi System Shelf...

1 Answer

After turning on my Sony MHC-GX750 it goes into stand by mode. What can i do to fix the problem?


Turn the unit off and dis-connect the speaker wires, press power and turn down volume, if it comes out of standby mode and comes on it means there is a short in the wires or one of the speakers. But! if it stays in standby with everything dis-connected it proves that one or more of the audio output ic packs is shorted and needs a tech to resolve the issue.

Jan 28, 2011 | Sony Audio Shelf Systems

1 Answer

How do you actually turn the MHC-EC50 off? The standby light is always on so that means its pulling power.


It's minimal, don't worry about it. If the 1/2 watt of current it draws bothers you, unplug it from the wall.

Feb 11, 2010 | Sony MHC-EC50 Shelf System

Not finding what you are looking for?
Audio Shelf Systems Logo

Related Topics:

955 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio Shelf Systems Experts

The Knight
The Knight

Level 3 Expert

68352 Answers

 Grubhead
Grubhead

Level 3 Expert

4590 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Sony Audio Shelf System Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...