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Thread: What swiches should I use?

  1. #1
    Newbie Saiyan's Avatar
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    What swiches should I use?

    A litttle Background: My basic in-car mp3 player is about 80% done. It's powered by an old Gateway Pentium 100mhz cpu/mobo with 32megs and a stripped down version of Win98. Winamp plays the MP3 playlist with a plugin to autoplay music at startup and to pick up where I left off after shutting down the system- I wanted my system to be extremely simple and it operates with no monitor, keyboard, or mouse attached.

    I've disabled the scan-disk so I can just shut the power off to shut the whole system down. After I purchase my inverter, I will have spent about $60 total in parts. The goal was to use as much existing stuff as I could and make a basic MP3 player without spending lots of $$$$. (Building your own is still cheaper than any commercial player and you have complete customization control.)

    The only part I can't figure out is what type of switch to use. I've and I've and I don't see anything that stands out in the kind of detailed info I'm looking for.

    I want a rocker switch to cut the 12v to the inverter mounted indash and another switch to power up the computer's power supply. A single pole single throw will do the job on the + side of the 12v to the inverter. The computer PSU is another story all together.

    It has a push button switch that I've already mounted in my case located behind the bench seat of my truck to turn it off and on. I don't want to reach behind the seat everytime I want to power up, and I don't want to screw up the PSU by using the wrong type of switch. It's a push on/push off switch with four wires connected to it. Blue/Brown/Black/White. One set is input AC voltage- the white (neutral) the black (hot) and the output AC voltage is blue (neutral) brown (hot).

    I just need to know if this is a double throw/double pole switch. I figure I can put a DPDT rocker switch indash alongside my 12v rocker switch if that's what this is. I'll just connect four wires to some sort of connector on the case (I remove the case to transfer songs and check the system out in the house) and run those four wires to the new indash switch. I know that it will have to be rated for 120v AC and I'm sure I can use another just like it for the 12v. If you have any suggestions or information, I am all ears.

  2. #2
    Variable Bitrate Batmanatthenewb's Avatar
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    Saiyan

    Sounds like you are using one of the old AT power supplies for your board. The ATX power supplies only require a momentary swich wired to the power posts on the m/b. I have done this with my system and it works well. A push on/off switch turns on the inverter, a momentary switch fires up the pc, and another momentary switch turns on the monitor. It might be alot easier to swap to a newer power supply so you don't have to run 4 wires from the pc up into the dash.

    Just my 2 cents worth.

    Batman
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  3. #3
    Variable Bitrate Bodgy's Avatar
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    with my setup (at power supply) i just leave the original pc power supply switch on, leave the inverter switched on, and operate the whole lot with a rocker switch on the 12 volt line to the inverter.

  4. #4
    Newbie Saiyan's Avatar
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    Yep, that's what I want to do but I thought the inverter needed a few moments before it could have a load or the inverter would trip out. I haven't purchased the inverter yet, but if it will work that way with one switch on the 12v supply to the inverter, that's even better and I'll try it. Thanks!
    Where ever you go- there you are...

  5. #5
    Variable Bitrate Bodgy's Avatar
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    good luck... some do, some dont i guess.

  6. #6
    Variable Bitrate Batmanatthenewb's Avatar
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    If I don't give my inverter a few seconds to turn on (till I hear the fan run), the pc won't turn on.

    Batman
    Batman@TheNewBatcave.com
    AMD XP 2000, 1gig PC2700, 80gig 7200RPM HD, DVD CD/RW, ATI All in Wonder 8500DV w/remote, DataChute, IRDA, Wireless 802.11b, cell modem, Lilliput 7" VGA TS, XP Pro, GPS w/Routis
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  7. #7
    Variable Bitrate Bodgy's Avatar
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    sucks to be you then

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