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Thread: M2 ATX Amp turn on not working

  1. #21
    Raw Wave
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    Not to resurect an old thread but my M2-ATX has now decided not to switch the amps on! So annoying!

  2. #22
    Raw Wave tbird2340's Avatar
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    Poland, OH
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    I have the same problem. I believe the M2 doesn't put out enough voltage to power my 2 amps.. I have the remote line hooked to an IGN wire so I get the pop..

    Has anyone hooked up a relay and did it work?

    Pin 85 - Connect to J6 Remote Turn on on M2-ATX
    Pin 86 - Connect to Ground
    Pin 30 - Connect to constant 12V
    Pin 87 - Connect to Remote line going to amps.
    Current Vehicle: 2007 Dodge Nitro

    Second Vehicle: Sold it :( 2005 Dodge Ram 1500 Quad Cab

    First Vehicle: 2003 Ford Ranger

  3. #23
    Newbie
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    Sep 2008
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    I have encountered the same kind of problem last day. I hooked up J6 to a relay and on its own it shows 12v, but when I plug it into the relay or amp, it goes down to 5v.
    My solution will be to try a 5v relay, but I'm really ****ed off, $8 wasted on the 12v relay that I bought specifically for this job.
    Does anyone have any helpful suggestions besides the 5v relay? I haven't checked the firmware on the PS, but I doubt it'll help.

    Thanks.

  4. #24
    FLAC
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    May 2006
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    Calgary, Alberta
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    I'm having similar issues with mine, anyone get this figured out?
    Ampie Case
    2.5" Hard Drive 80GB Samsung 5400RPM
    256 MB DDR2 PC5400
    Xenarc 700TSV - VGA Monitor
    Intel D945GCLF Motherboard
    M2-ATX-HV

    2005 Honda Civic

  5. #25
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    Jan 2007
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    I know this is an older thread....but a lot of people seem to be having this problem with the M2-ATX PSU. I am having the exact same problem from a new M2ATX....I explained the problem to the vendor I bought it from and they acknowledged this was a known issue. I received a replacement and it's doing the exact same thing. The amp out measures 12v with nothing connected; however, under 5 volts when under a load (connected to the amps). Is there really no fix for this??

  6. #26
    FLAC
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    May 2006
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    Ya, you can wire up a transistor from Radio Shack for 10 cents and it works fine. I did it to my setup last year.
    Ampie Case
    2.5" Hard Drive 80GB Samsung 5400RPM
    256 MB DDR2 PC5400
    Xenarc 700TSV - VGA Monitor
    Intel D945GCLF Motherboard
    M2-ATX-HV

    2005 Honda Civic

  7. #27
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    Quote Originally Posted by Maheriano View Post
    Ya, you can wire up a transistor from Radio Shack for 10 cents and it works fine. I did it to my setup last year.
    Maheriano....thanks for the reply. Can you post more details of the transitor mod you did? Any help would be greatly appreciated!

  8. #28
    FLAC
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    May 2006
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    Here's the tutorial - http://www.mp3car.com/vbulletin/powe...rs-m2-atx.html
    If the pictures aren't loading it's because the database on my website got corrupted and I have to fix it. I can't tell right now if they're loading or not.
    Ampie Case
    2.5" Hard Drive 80GB Samsung 5400RPM
    256 MB DDR2 PC5400
    Xenarc 700TSV - VGA Monitor
    Intel D945GCLF Motherboard
    M2-ATX-HV

    2005 Honda Civic

  9. #29
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    Quote Originally Posted by Maheriano View Post
    Here's the tutorial - http://www.mp3car.com/vbulletin/powe...rs-m2-atx.html
    If the pictures aren't loading it's because the database on my website got corrupted and I have to fix it. I can't tell right now if they're loading or not.
    Thanks again Maheriano. Ironically one of my amps is the same rockford amp that you have (p300-1), my other is a t400-4. So the transistor basically acts as a relay? And your M2 wouldn't turn the amps on until you added this? Interesting. I will give it a shot!

  10. #30
    FLAC
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    Quote Originally Posted by crankycowboy View Post
    Thanks again Maheriano. Ironically one of my amps is the same rockford amp that you have (p300-1), my other is a t400-4. So the transistor basically acts as a relay? And your M2 wouldn't turn the amps on until you added this? Interesting. I will give it a shot!
    No, it's a transistor, not a relay. A relay is an automated switch which can turn a device on when the relay is powered. This transistor ups the voltage on the line to 800 milliamps which is what's required by the amplifier on the remote lead in order for it to turn itself on. Without getting at least 800 milliamps on that switched line, the amplifier will not turn on. And if you take a multimeter to your wire, you'll find that you're well below that. So even though a signal is coming through the switched line (remote wire), it's not enough voltage to be picked up by the P300.1.

    Did the pictures show up for you? My gallery is still messed up on my website but it appears as if the pictures stored in it may still be hotlinking correctly.

    And yes, as soon as I hooked up the transistor it worked and has been working for the last year. This will 100% solve your problem.
    Ampie Case
    2.5" Hard Drive 80GB Samsung 5400RPM
    256 MB DDR2 PC5400
    Xenarc 700TSV - VGA Monitor
    Intel D945GCLF Motherboard
    M2-ATX-HV

    2005 Honda Civic

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