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  1. K

    Photocopier Service manual needed

    Does anybody have or know where i can find the service manual of any copier. Any type. I am trying to learn.
  2. K

    Timer. What's wrong

    Thank you Alun
  3. K

    Timer. What's wrong

    What about this one?
  4. K

    Timer. What's wrong

    I have done all the changes suggested here and came to this one. I will build later.
  5. K

    Timer. What's wrong

    Yes  the switch is a momentary action one. It is possible that the IC has gone bad because in the beggining i changed  the power wires by mistake (connected ground to Vcc snd Vcc to ground ) and IC heat up so much that it couldn't be touched with hand (it might have remaind in that state for...
  6. K

    Timer. What's wrong

    Still the output stays high.
  7. K

    Timer. What's wrong

    I have projected this timer and built it. But the output stays always High, i don't know what's wrong with it? The cap is 2200uF and the resistor is 10k. I have also tried with a 100uF cap but still no change. Any help?
  8. K

    2SC828 datasheet needed

    Thank you man i can see you searched a lot i really appreciate it               Thanks again.
  9. K

    2SC828 datasheet needed

    Hi   i need the datasheet of 2SC828 transistor. I really need it guys.
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