pcb

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    Widespread PCB Pollution

    Since polychlorinated biphenyls (PCBs) are produced through industrial processes or activities, it is assumed that people living in industrial cities will have higher concentrations of these toxic chemicals in their blood than people in rural communities. Researchers at the University of Iowa...
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    What is the difference between a 1-layer and 2-layer PCB?

    Is there any practical reason that I should consider having traces in both sides of my board? It's intended to be an educational kit, and the components are going to be soldered by hand using through holes components (NOT SMDs)
  3. J

    pcb design of ac-dc converter?

    how to make a simple ac-dc converter
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    How to mount KC 21 Bluetooth Modue on PCB?

    I am doing a college project and am using the KC 21 Bluetooth Module to communicate with a mobile device, but I am having problems mounting the KC 21 on PCB as I cant find any connectors with a small pitch as on the KC 21. Any suggestions...
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    Swapping PCB boards in Hitachi XBOX 360 DVD Drive?

    My Xbox 360 Recently started having trouble reading some games and no matter how I tried it wouldn't read it. I have a faulty Xbox also that has same Hitachi DVD drive and I know you can swap the PCB boards. My Xbox drive is ROM version 0046DH Faulty Xbox drive is ROM version 0059DJ Does this...
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    My 360's Benq drive's PCB board is fried but i have another exact same...

    ...Benq drive. How do I swap the dvd key? I have two Benq drives that are the exact make and model. The one for my original 360 has a fried board and will not even work on the computer. (I get the E65 message when I hook it up to the 360) I swapped the old drive with the new one and it works...
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    need help identifying a resistor on a pcb?

    i am repairing a power drill charger, and found a large resistor burned up with bands that dont match standard format... i do have a pic avail, but it a large ceramic resistor, "dog bone" shaped with BROWN bands on both ends, and 2 BLACK bands in the middle.. please help ?!?
  8. M

    What type of LEDs are able to be mounted to a PCB? I think SMT LEDs but like

    from the handle LEDS from BMW? If you look in the handle (on the exterior of most BMWs) they have these LEDs that light up either underneath the handles or the mirrors. They are very small but very bright. I believe they are called SMT leds (surface mount technology) but where can I find them to...
  9. T

    jaguar combi boiler F3 error heat exchanger clean but boiler wont reset small pcb

    and pump changed could prob? be electrical does the main pcb need changing
  10. S

    SMD PCB using chip transisters & capaciters in circuits how can we dentify its...

    ...correct value or number? In SMD based PCB several chip components are connected in the circuit, we don't have circuit details, we only have to checked by Multimeter or LCR meter , after confirm these components are faulty, we need correct number to replace the same components,Chip capacitor...
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