Bernie, post an image of your logic board test points. You are definitely having issues with it since you are missing some voltages:
Test Point Functions:
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* Pin 1 Ground
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* 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.
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* Pin 4 Standby 12V power (permanent power coming from power supply, present as long as AC cable is connected, even if computer is off); '''corresponds to LED #1'''
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* 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)
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* Pin 11 12V Run-Mode power to logic board (coming from power supply, present as long as system is on or asleep); corresponds to LED #2
-
* Pin12 Power On Request signal (from logic board to power supply when power button is pressed)
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* Pin 13 Backlight Enable (signal from logic board to Backlight Controller board, to enable backlight"
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* Pin 4 is about the only one that is correct.
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* Pin 1: Ground
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* 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); '''corresponds to LED #1'''
+
* 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); corresponds to LED #2
+
* 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"
Bernie, post an image of your logic board test points. You are definitely having issues with it since you are missing some voltages:
Test Point Functions:
-
* 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); '''corresponds to LED #1'''
-
* 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); corresponds to LED #2
-
* 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"
Bernie, post an image of your logic board test points. you are definitely having issues with iot since you are missing some voltages:
+
Bernie, post an image of your logic board test points. You are definitely having issues with it since you are missing some voltages:
-
Test Point Function
+
Test Point Functions:
-
Pin 1 Ground
+
* Pin 1 Ground
-
Pin 3 5V power for Hard Drive(s). Note: If present, the 12V power will come directly
+
* 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.
-
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); '''corresponds to LED #1'''
-
Pin 4 Standby 12V power (permanent power coming from power supply, present as long as AC cable is connected, even if computer is off); '''corresponds to LED #1'''
+
* 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 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); corresponds to LED #2
-
Pin 11 12V Run-Modepower to logic board (coming from power supply, present as long as system is on or asleep); corresponds to LED #2
+
* Pin12 Power On Request signal (from logic board to power supply when power button is pressed)
-
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"
-
Pin 13 Backlight Enable (signal from logic board to Backlight Controller board, to enable backlight"
Bernie, post an image of your logic board test points. you are definitely having issues with iot since you are missing some voltages:
Test Point Function
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); '''corresponds to LED #1'''
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); corresponds to LED #2
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"
Pin 4 is about the only one that is correct.