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  1. pharaon

    mouse x7 xl-747h randomly stop responding

    i replaced all the chemical capacitors and it worked fine for a day but now i'm back to the same issue it's driving me crazy what else could cause the drop in voltage
  2. pharaon

    mouse x7 xl-747h randomly stop responding

    i've fixed it close the thread please...
  3. pharaon

    mouse x7 xl-747h randomly stop responding

    is there any explanation what cause the voltage on the infrared to drop from 1.9V to 1.3V
  4. pharaon

    mouse x7 xl-747h randomly stop responding

    oh that's a factory glue not mine and anyway it's soldered from the back to the board and i think it's infrared beam not laser one
  5. pharaon

    mouse x7 xl-747h randomly stop responding

    which wire and glue do you mean?
  6. pharaon

    mouse x7 xl-747h randomly stop responding

    i re soldier all the joints. but still the voltage at the laser diode is 1.3 V not 1.9v to make it operate so what do you think cause such drop in voltage ?
  7. pharaon

    mouse x7 xl-747h randomly stop responding

  8. pharaon

    mouse x7 xl-747h randomly stop responding

    [/url] i found the issue when the voltage on the laser led diode is 1.9V the mouse pointer work fine when it drop to 1.2V the mouse pointer stop moving so what cause the voltage to suddenly drop from 1.9V to 1.2V? and the led diode's wires aren't connected to the small capacitor
  9. pharaon

    mouse x7 xl-747h randomly stop responding

    yes and it work fine and tried the mouse on different ports and same issue the mouse light and all the button are working but no leaser beam as before it worked fine today but then again stop laser beam although all buttons works and mouse lighting fine
  10. pharaon

    mouse x7 xl-747h randomly stop responding

    i rechecked all the wires connection and all is fine but the same issue still exist
  11. pharaon

    mouse x7 xl-747h randomly stop responding

    unfortunately the issue back again i rewired all the wires yesterday and now same issue mouse light is on but no laser light so cursor freeze and i'm pretty sure the wires after being solder won't move cause i fixed all with glue so what else would be the issue
  12. pharaon

    mouse x7 xl-747h randomly stop responding

    that was right guess. i fixed it thanks
  13. pharaon

    mouse x7 xl-747h randomly stop responding

    wired mouse
  14. pharaon

    mouse x7 xl-747h randomly stop responding

    hello every one i'm having an issue with my mouse mouse x7 xl-747h i notice that the mouse stop responding randomly for seconds or minutes then work again. i found out that when it stop responding the reason is the laser light is not working what cause this issue and how to fix it
  15. pharaon

    help fixing fluorescent lamp circuit

    i think there's some misunderstand this is the type of lamp i'm using this is new picture for the board after it been cleaned . notice: I removed two transistors to replace them. I also removed to ceramic capacitors in order to test them as well I'll re connect all after figuring out what's...
  16. pharaon

    help fixing fluorescent lamp circuit

    i'll test them
  17. pharaon

    help fixing fluorescent lamp circuit

    it's new lamp and each give like 9 ohms reading
  18. pharaon

    help fixing fluorescent lamp circuit

    I cleaned it before i connect the circuit UtE61e
  19. pharaon

    help fixing fluorescent lamp circuit

    This is an electronic neon bulb circuit. Two transistors No. 13003 were changed. Two quarter-watt resistors, 15 ohms. The rest of the resistors and diodes are good. When connected, the bulb lit for a few seconds, then a spark came from the two transistors 13003, and I found that they were...
  20. pharaon

    UT61E multimeter AC measurement issue

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