Imac Power Supply: PA-2311-02a

tansquared

http://bios-schematic.com/account/upgrades
Hello, Do you have the schematic diagram of imac power supply model: pa-2311-02a and board view? Thanks in advance.
 

admin

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The PSU is a Delta ADP-200DF and a search on that may reveal more. In the meantime, I would use the pins listed for the test points. Use your multimeter to measure those on your actual PSU:
Pin 1
Ground
Pin 3
5V power for Hard Drive(s). Note: If present, the 12V power will come directly from the Power Supply to the Hard Drive thru the power harness cable.
Pin 4
Standby 12V power (permanent power coming from power supply, present as long as AC cable is connected, even if computer is off)
Pin 6
Backlight Control pulse width modulated signal (from logic board to LED backlight board, to adjust the backlight level setting according to user setup)
Pin 11
12V Run-Mode power to logic board (coming from power supply, present as long as system is on or asleep)
Pin12
Power On Request signal (from logic board to power supply when power button is pressed)
Pin 13
Backlight Enable (signal from logic board to Backlight Controller board, to enable backlight)
 
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