Serin serout problem

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  1. - 1st February 2007, 23:52 #24
    lerameur's Avatar
    lerameur
    lerameur is offline Senior Member
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    HI,
    hope you are doing good.
    I read a thread on this site concerning the 7805 overheating.
    My 7805 is overheating even with a heat sink and I just have a LCD a pic chip and a RF receiving module. I tried the tricks they say but none is working.
    I tried conencting the backlight directly to the 12v battery using a 150 IOhm resistor, or t o the 5V output of the 7805 with a 22 ohm resistor. Whils always keeping the LCD Vdd to the 5v of the 7805.
    It heats op in every case ?
    any ideas ?
    Lcd 16 x2: UNIQ/eVision GC-1602I1
    Last edited by lerameur; - 2nd February 2007 at 00:04.
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