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    Change My Motherboard Myself? Need Recommendations

    Based on what you have so far, and what you intend to upgrade to, I am going to guess your ultimate goal is a gaming computer. Am I right? If I was going to suggest a motherboard brand, my preference is now ASUS. I was an ABIT fan before. I built my first ASUS Motherboard gaming computer in...
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    Change My Motherboard Myself? Need Recommendations

    If you are replacing the current motherboard with the same make and model motherboard, it is similar to a puzzle that you take apart and put back together. If you intend on replacing your current motherboard with an upgraded version, or a different brand and model. It is a bit more...
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    Need help to identify a part number

    Can you post a photo of the other side of that circuit board so we can look at that side too. It appears it has also gotten wet. In the attached photo, one of the solder joints appears to have fractured, unless it is simply the way the photo was taken. I have a badly drawn arrow pointing at...
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    Harmon Kardon hk570i Stereo receiver only plays on one side - grounding issue?

    That receiver is probably 40 or more years old. Based on your description of the problem, the most likely cause(s) are due to failed/failing capacitors. You will have to open it up and do a visual check first, if you know what you are looking for, and then do some component replacement more...
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    Dewalt DC012 radio - No sound

    Well I will just tell you what I did to fix the other one. On the component side, C1, a 220uF 16V capacitor had gone bad. This prevented the smd voltage regulator (IC1) on the other side of the board from turning on. I replaced the capacitor (C1) and the regulator worked afterward, as did the...
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    Dewalt DC012 radio - No sound

    Before you toss this, can you take clear pictures of the front and back side of the printed circuit board like others have done. I just repaired one of these for a neighbor. If yours is similar, there may be a fix.
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    Can anyone identify this component for me please.

    Have you tried taking it off of the board and testing it with the various multimeter settings? It might not really be "shorted thru" as you call it.
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    Dewalt DC012 radio - No sound

    Take clear pictures of the front and back sides of your board, the same as the previous posters have done. I may have a fix for you. I can let you know more after seeing the pics. For now, though, don't mess with anything else.
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    Dewalt DC012 radio - No sound

    You should check that the speaker(s) is working properly then. Sometimes they stop moving as they should. You can disconnect the speaker leads and put another radio amplifier on them to test them. Make sure you pay attention to the ohm rating and wattage for the speaker you are using and...
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    Dewalt DC012 radio - No sound

    If you are trying to test those components (caps, mosfets, diodes) while they are still soldered in circuit, you will not always get the proper results. They need to be removed, or partially removed, in order to test them. And again, visual evaluations of electrolytic capacitors is never a...
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    Dewalt DC012 radio - No sound

    Yes. They appear to be entirely different boards. Yours is probably a newer model board with more smd components taking the place of the other through hole components. You will probably have to remove that Zener from the board to get an accurate test. Testing it in circuit is not reliable...
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    Dewalt DC012 radio - No sound

    Can you post clear pictures of the front and back of the board. Let us take a look.
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    Dewalt DC012 radio - No sound

    You could always try the fix that PH5 reported worked for him. Did you understand which components he replaced? It looks like he replaced one transistor (Q504) and one electrolytic capacitor (C228). You may get lucky with doing the same. The other option includes testing the components on...
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    SMD resistor ID

    You cannot do it by size. A resistor will have a resistance value, regardless of its physical size, and similar sized resistors can have different resistance values. Larger physical sizes usually have to do with the amount of current/wattage they can handle. When they are that small, they...
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    Typewriter LCD display repair

    Isn't the point of having the display operable so you can see what will eventually be typed on the paper? I don't know. That's why I'm asking.
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    Vintage Gremar Female BNC Connector Identification?

    Post a picture.
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    Typewriter LCD display repair

    Let us know if you are able to fix it. :)
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    Typewriter LCD display repair

    Thanks, Bluejets, but Astro mentioned the majority of the display "lights up" when adjusting the "contrast potentiometer." This is the clue that leads me to believe the module is still functioning properly.
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    Typewriter LCD display repair

    No worries, Astro. Let's do the easy stuff first though. For now, take very clear photos of the front and back of the circuit boards in that thing. The larger one that is still in the machine and the smaller board the display module is connected to. It looks like the board in the machine is...
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    Solenoids

    The solenoid is operated by an electric current supplied to a wire coil, which then creates a magnetic field usually around a core. The magnetic field moves that core in a direction needed to operate the device. So the answer to YOUR question is that it would run off of the batteries you have...
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