8 program led light controller

Discussion in 'General Electronics Chat' started by manecsiuk, Jan 28, 2013.

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  1. manecsiuk

    Thread Starter New Member

    Jan 27, 2013
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    Hi all,
    I need your help for the 8 program led light controller circuit. The two transistors were destroyed (burned) and do not know what is called the transistor. The second question is: Why have destroyed the two transistors?
    Thanks in advance.
     
  2. tshuck

    Well-Known Member

    Oct 18, 2012
    3,531
    675
    Whoa! Talk about catastrophic failure!!!!:eek:

    Looks like WAY too much current went through those poor trannys....

    Without schematics, any guess is just that....
     
  3. Brownout

    Well-Known Member

    Jan 10, 2012
    2,375
    998
    Two possibilities:
    1) Over voltage
    2) Over current
     
  4. sheldons

    Active Member

    Oct 26, 2011
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    can we have a component side and solder side view?
     
  5. manecsiuk

    Thread Starter New Member

    Jan 27, 2013
    2
    0
    Thank you all for your help,
    I attached some pictures of the circuit. I hope to understand in these pictures.
    Thanks a lot ...
     
  6. absf

    Senior Member

    Dec 29, 2010
    1,492
    372
    What are the values of the capacitor and resistors? Are you connecting 110V or 220V AC to the power plug?

    Allen
     
  7. bug13

    Well-Known Member

    Feb 13, 2012
    1,208
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    That looks like main to LED to me, just saying...
     
  8. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,346
    Hello,

    I am closing this thread as it violates AAC policy and/or safety issues.

    Quote:
    6. Restricted topics. The following topics are regularly raised however are considered “off-topic” at all times and will results in Your thread being closed without question:

    • Any kind of over-unity devices and systems
    • Automotive modifications
    • Devices designed to electrocute or shock another person
    • LEDs to mains
    • Phone jammers
    • Rail guns and high-energy projectile devices
    • Transformer-less power supplies
    This comes from our Tos:
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    Bertus
     
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