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  1. pharaon

    datasheet for this IC

    the file from the link is m93s46-w, is it the same?
  2. pharaon

    datasheet for this IC

    i'm getting it from an old odometer and will install it to another board that's why i need to reprogram it what about MiniPRO TL866CS USB Universal Flash EEPROM Programmer or what do you think about this way to pc serial port although i'm not sure how to manage the +5 voltage input
  3. pharaon

    datasheet for this IC

    it's an old car odometer board is there any tutorial on how to such thing , and can i do it through old pc with serial port? but how to connect it and what application can i use to reprogram it
  4. pharaon

    datasheet for this IC

    i wonder if anyone got datasheet for this IC , also want to know if it's possible to reprogram it i also wonder if such PIC PROGRAMMER USB SMD can reprogram it or does this one able to reprogram it K150 USB PIC Microcontroller Programmer
  5. pharaon

    how to determine the right voltage for led lamp?

    thanks every one
  6. pharaon

    how to determine the right voltage for led lamp?

    yes that's true
  7. pharaon

    how to determine the right voltage for led lamp?

    see that top thin line that all each group of leds share
  8. pharaon

    how to determine the right voltage for led lamp?

    yeah sorry about that, it's the opposite
  9. pharaon

    how to determine the right voltage for led lamp?

    how did you calculate this part?
  10. pharaon

    how to determine the right voltage for led lamp?

    ok today i tried with 0.04 current and 2.6 voltage for 5 leds 1- connected for only one led and the 5 light up together 2- connect the first and last led and the 5 light up then i tried to light up 10 leds same current at 0.04 but i had to rise up the voltage to 5 V
  11. pharaon

    how to determine the right voltage for led lamp?

    so which one is the right one? here, this pic for me using 3.5 v with 0.2 ampere on one led and you can see the 5 is light up together also i made some other picture for the led stripe the little dots shows where the led is connected from the other side
  12. pharaon

    how to determine the right voltage for led lamp?

    actually it's 90/5 =18 group i counted wrong sorry how can i check? they all share the positive line but the negative is every 5 leds is that enough to light up 90 leds?
  13. pharaon

    how to determine the right voltage for led lamp?

    it's a lamp and there's no other data available , only 18 watt on the back of the lamp so based on the number and the watt can't i determine the required voltage to lighten it up
  14. pharaon

    how to determine the right voltage for led lamp?

    that wire should be connected to the adapter that give it the power it needs to
  15. pharaon

    how to determine the right voltage for led lamp?

    how can i find out and i count it's all 90 leds
  16. pharaon

    how to determine the right voltage for led lamp?

    how can i determine the right voltage that could light up some leds in old lamp because it's own adapter is missing is it related to the number of the leds in it or what it's a rounded lamp and the leds like a string around it when i test it on the diode mode with my multimeter i find out that...
  17. pharaon

    dim LCD laptop screen

    how about connecting a power to the board like 19V with 2 current and check out what component will get hot any idea where to connect the power ?
  18. pharaon

    dim LCD laptop screen

    is it possible that both sides of the capacitor is shorted to ground or only only side?
  19. pharaon

    dim LCD laptop screen

    this is the LCD label although if there's not datasheet or schematic, i would like to know what SMD component could cause the short to test and replace it
  20. pharaon

    dim LCD laptop screen

    https://photos.app.goo.gl/iDP6wPw5QqsKECGM6 https://photos.app.goo.gl/mZY52hGY4xbmphpQ6 https://photos.app.goo.gl/fR3BDjLrv1C4foXq9
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