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-> 0.003a . Kiểm tra
- no 3v5v
- Pin19 (-PWRSWITCH) = 2.9vMAX 17003 (u41) như sau:
- pin 21 (in) =20v
- pin 20 (LDO5) =5v
- pin 5,6 ( on3, on5) = 3.2v
- pin 4 ( -SHDN) = 3.2v
- pin 7 (REF) = 1.9v
U28 như sau:
- Pin 24 = 3.2v
- pin 32 = 3.2v
- pin 7(vcc)= 3.2v
- pin 17(-SHUTDOWN2) = 3.2v
- pin 54(-THERM) = 0v
=> change C216, C511 ( 3v5v )
=> change MAX 17003
=> change U61, U28
Help me !
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