Shredplayer
New member
Pardon me if i post it here since i can't find an imac section, iMac 820-3302-A works but no backlight
F9700 = 12v pin 1 & 2
R9712 = 12v pin 1 & 2
FB9708 = 12v pin 1 & 2
P MOSFET Q9702
Pins 1,2,3 = 12v
Pin 4 = 11.75
Pin 5 = 0v
Replaced Q9702 still no backlight pin 5 = 0v
R9721 pin 1 = 12v while pin 2 = 11.75 BKLT_EN_DIV and connected to MOSFET Gate, since this is a P MOSFET is this pin supposed to have lower voltage so MOSFET will let power through Drain?
Changed R9721 still 0v on MOSFET pin 5.
Currently i am staying away from replacing U9700 since VIN pin 23 power source is from PP12V_S0_BKLT_PWR which i believe generated by Q9702 Drain
Any help will be appreciated.
F9700 = 12v pin 1 & 2
R9712 = 12v pin 1 & 2
FB9708 = 12v pin 1 & 2
P MOSFET Q9702
Pins 1,2,3 = 12v
Pin 4 = 11.75
Pin 5 = 0v
Replaced Q9702 still no backlight pin 5 = 0v
R9721 pin 1 = 12v while pin 2 = 11.75 BKLT_EN_DIV and connected to MOSFET Gate, since this is a P MOSFET is this pin supposed to have lower voltage so MOSFET will let power through Drain?
Changed R9721 still 0v on MOSFET pin 5.
Currently i am staying away from replacing U9700 since VIN pin 23 power source is from PP12V_S0_BKLT_PWR which i believe generated by Q9702 Drain
Any help will be appreciated.