Recent content by funtotos

u1950 pin 7 and 3 = 3.43v (fan spin) When i connect the magsafe the first time , no boot (green light and orange ) When i connect the second time , the fan turns then stop (green light and orange )

when the fan spins ALL_SYS_PWRGD : 3.35v 2 second I don't know the history thks

Hi all I've got a 820-3437. When I connect the magsafe the fan spins then stops, then spins then stops but no start. green light on charger : pp5v_s5 ok PP3V3_S5 ok PPVRTC_G3H ok no P5VS4RS3_EN no PM_SLP_S5_L no SMC_S4_WAKESRC_EN no S4_PWR_EN no PM_SLP_S4_L no short any ideas ?

thanks you Jadao I just replace u7090 , not smc. i always have short on pp3v42 but i find 3.39v ......i don't understand !! you want me to make a video on youtube ? with the camera thermal , the smc and u7090 heat = 86 Fahrenheit thanks

i need you

I know . it's crazy diode mode in both directions I have 0.27v and when I plug in the magsafe, I have 3.39v on pp3v42 rails thanks

i don't understand, when a put black probe on ground and red probe = on l7095 pin 2 or u7090 pin 2 . my multimeter beep!!! 42.5ohm multimeter on diode mode on rails pp3v42_g3h = .026v why he beep ? thanks

I replaced u7090, smc bc acok 3.34v u7090 pin1 1,238v pin2 3.46v pin3 7.23v pin4 3.43v pin8 14.61v pin6 14.61 l7095 pin1 3.44v pin2 3.39v f7140 12.34v smc reset l 3.35v why i still have a short circuit on pin2 u7090? still no green light

ahh good news, where is 3v42 regulator ? thanks

board for corrosion on r7095, c7094 and l7095 no dammage liquid . When i inject 3.4volt on pin 2 l7095 = smc burn

pin 6 and Pin 8 on U7090. = 14.31v Diodemode reading on L7095. = .027v

hello 820 3476 no dammage liquid I dont have PP3V42_G3H on this board. r7020 16.6v i have short on u7090 pin 2 resistance pin 2 u7090 42.6 Ω Can u guys try help me figure out? Thank you

I have a macbook air with this main board 820-00165. Laptop was liquid damaged. It is not turning on. Green and orange charger light is present. Fan spin for about 1 second then stop. PPBUS_G3H 8.63v PPDCIN_G3H_ISOL 15v PPDCIN_G3H 14.43v PP3V42_G3H 3.45v PPVRTC_G3H 3.33v PP5V_S5 5.5v PP5V_S4RS3...

no short ppbus g3h

no green lights. i still replace u7100 (green light ok with orange light) and i took the measurements: 1) 8.2MV 2) 14.58V 3) 3.62V 4) 3.31V 5) 180MV 6) 3.42V 7) 0.731V 8) 0.268V 9) 4.36V 10) 3.41V 11) 3.42V 12) 3.42V 13) 3.39V 14) 3.39V 15) 0V 16) 1.6V 17) 1.6V 18) 1.6V 19) 5.53V 20) 5.53V 21)...