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Thread: Schematics/Pin Outs/Diagrams

  1. #41
    FLAC W3bMa5t3r's Avatar
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    Since it was brought up elsewhere, I figured I'd post it in here as well since this is an appropriate section.

    If you need to drop 12vdc down to say 6vdc or 8vdc for external devices (hubs, tv tuners, etc), you can use the calculator -HERE- to figure the resistors needed to drop the voltage. It will even show you the circuit to build. This is a voltage divider circuit.

  2. #42
    MySQL Error jcdillin's Avatar
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    Quote Originally Posted by W3bMa5t3r
    Since it was brought up elsewhere, I figured I'd post it in here as well since this is an appropriate section.

    If you need to drop 12vdc down to say 6vdc or 8vdc for external devices (hubs, tv tuners, etc), you can use the calculator -HERE- to figure the resistors needed to drop the voltage. It will even show you the circuit to build. This is a voltage divider circuit.

    Just a warning, dont try to use this circuit with high amperage items, unless you are prepared to get rid of some serious heat and buy some monster heatsinked resistors. Some of these USB hubs and such draw upwards of 2.5A which to put through a resistor is some serious wattage. In those cases you have to go with a switching power supply, or even a high amperage linear chip.
    肚子笑痛了
    S60 Install

  3. #43
    FLAC W3bMa5t3r's Avatar
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    Quote Originally Posted by jcdillin
    Just a warning, dont try to use this circuit with high amperage items, unless you are prepared to get rid of some serious heat and buy some monster heatsinked resistors. Some of these USB hubs and such draw upwards of 2.5A which to put through a resistor is some serious wattage. In those cases you have to go with a switching power supply, or even a high amperage linear chip.
    lol good point. I was only thinking of dropping the voltage, not really the overall outcome from doing so... I guess this is good for the low current apps, but not for the hubs, etc like you said. I think my hub's pull is ~1.75A.

  4. #44
    And then I was mod. Tidder's Avatar
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    Hey, here is a diagram of my inverter/PC power-on/shutdown control.

    It's a pretty big picture, but the file size is small. Less than 50k.

    http://www.dynamic-i.com/carpc/inver...-controlle.gif

    Here's a smaller version.


    Quickly-found link to cube timer:
    Here's one for $20. http://www.weisd.com/store2/NATQ4F-00010-326.html
    Tidder

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    The best resurrected frontend I've ever used, period.

  5. #45
    FLAC W3bMa5t3r's Avatar
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    Ok well I searched ALLL over and though I'm sure I read about it somewhere I couldn't find it, so I have decided to post what I found along with a diagram of what I found. :-)

    This is for a Dell Latitude D800 Laptop Power Supply Brick (and I'm 'assuming' all the other laptops that this brick and similar support).

    Basically there are 3 wires coming from the brick to the laptop. It was easy enough to figure out the +19.5vdc and the GND, but the third wire... wasn't sure if it was needed and if all hell would break loose if not connected or whatever...

    So... here's the diagram

    The Power Supply Type Wire IS NOT NEEDED, but when you power on the laptop, the BIOS will say that it can't tell what power supply is connected. Just say you know and you don't want to be bothered by the prompts again. You're golden ;-) Hope this helps.

  6. #46
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    Quote Originally Posted by 4u2n View Post
    Here is the total pinout for the Blaupunkt
    This is complete for newer models:


    And for old models:

  7. #47
    Low Bitrate Maxis24's Avatar
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    Thank you for the pin out diagram, I finally have an excuse to replace my after market stereo with a stock Ford Blaupunkt unit.
    2000 Ford Focus ZTS

  8. #48
    Variable Bitrate rubicon's Avatar
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    Alpine KCE-422i "Full-Speed" iPod Cable


    Code:
    KCE-422i pin	Corresponding iPod dock pin(s)
    ------------	------------------------------
    1		3     (Line-out, Right +)
    2		21    (Accessory Indicator)
    3		12    (Serial Tx)
    4		4     (Line-out, Left +)
    5		19,20 (FireWire +12VDC [in])
    6		18    (+3.3VDC [out])
    7		13    (Serial Rx)
    8		2     (Line-out, Common GND)
    9		11    (Serial GND)
    10		16    (USB GND)
    Jacket		29,30 (FireWire GND)
    Dock connector pin designations from Dock Connector - wikiPodLinux

  9. #49
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    EL Backlight with inverter HD44780 character LCD Diagram

    EL Backlight with inverter HD44780 character LCD Diagram
    Attached Images Attached Images  

  10. #50
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    Quote Originally Posted by Chairboy View Post
    gah, no sense of humor.

    Quick method for regulating 12+ to 12v steady. There's a voltage drop off of around 1v or so. Using a 7505 or 7509, you can get regulated 5v or 9v too respectively.

    Note: Less then 1 amp load. You cannot get regulated 3amps by just using 3 7512s or the like, so don't try.

    you need a big capacitor too cause the diodes in youre alternator might not be all there cap goes across output and should be more than 15v . I would take one out of a existing 110v to any DC output power pack and use that type capacitor this would get less ripple on scope reading! GOOD LUCK.
    an 340t5 is a 5v one and hooks up same . I use them in Atari2600
    2200uF 16v should work if you want quality pick a 50v one! this should eliminate ripple out out put of regulator just fine...

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