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Power Indicator dead On Pioneer A400

Hi,
I have a Pioneer A400 amp which is working fine. The only thing is the power indicator light went off but the amp still works fine. Could this be an indication that something is wrong, or is it just the bulb/neon has blown.

Thanks,

Harvey.

Posted by on

  • hstaples261 Feb 06, 2010

    Hi Anthony,
    Thanks for your answer. There is no smell of burning at all. When I recieved the unit there was nearly a blanket of fluff inside. I vacuumed it all out with a special vacuum cleaner with a rubber nozzel. The inside now looks like new. I tried the amp again today and the or LED is back on again. So you could be right, ie bad solder join. Just to point out when the LED light went off I heard a click like a relay, but the amp carried on working fine.

    Thanks again,

    Harvey.

  • hstaples261 Feb 06, 2010

    Hi,
    I might just leave it for now as it is working fine apart from the LED going out after the amp has been on for awhile. I am going to monitor the amp closely and see how long it takes for the LED to go out. Then I will examine the main board with a magnifying glass to see if I can find any dry joints and reheat as neccesary.

    Harvey.

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Hi, yes don't worry about it if you are sure it is working fine,it's just one of those things. Can you smell any sort of burning?
if not don't worry, but if you know someone who knows a little about electronics, it might just be a bad soldered connect on the neon, but neons are prone to blowing.
Well i'm just blabbering on here.
if it's ok leave well alone.

I hope this has helped in a sort of way.

Regards - Anthony

Posted on Feb 06, 2010

  • Anthony Feb 06, 2010

    If all is well, then leave alone.
    HAve you tried going to a college and asking an electronics repair teacher if they could look at it with you there.

    When I was doing electronics servicing we sometimes did this for people, it might be worth asking to see if it is a dry joint.

    Hope this helps - Anthony


  • Anthony Feb 06, 2010

    OK, good luck anyway, but give us a shout if you need more help.

    Regards - Anthony


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