Okay. I've checked the AC power cord and I'm getting power from the wall. About 120.2VAC. So I will rule that part out.
I've went ahead and pulled the power supply unit and the analog board from the SE/SE30. I put my voltmeter (DMM) on P3 connector. Pin 1 is black (+5Vdc) according to the diagram/label. Black probe is on Pin 1 and Red probe is on Pin 4, which is orange (-12Vdc). Output voltage from this is 5.34Vdc. Red probe is moved to Pin 5 (yellow); voltage is +13.89Vdc. Pin 2 (black) and Pin 3 (black) are for carrying +12V for the disk(s) and sweep. They show about 13.84 Vdc when the red probe is on yellow Pin 5 and black is on Pin 2 and Pin 3. Obviously, these are the peak voltages without other loads connected.
Power supply is a SONY model CR-44 (Apple part number: 699-5047. This is an original power supply for an SE, but I've used it no problem with an SE/30 logic board.
I'm going to assume that the power supply at this point is working fine and I should be focused on the analog board. No burnt smell on PSU or indication inside and out of fried electronics.
Any thoughts?
73s de Phreakout. :rambo:
I've went ahead and pulled the power supply unit and the analog board from the SE/SE30. I put my voltmeter (DMM) on P3 connector. Pin 1 is black (+5Vdc) according to the diagram/label. Black probe is on Pin 1 and Red probe is on Pin 4, which is orange (-12Vdc). Output voltage from this is 5.34Vdc. Red probe is moved to Pin 5 (yellow); voltage is +13.89Vdc. Pin 2 (black) and Pin 3 (black) are for carrying +12V for the disk(s) and sweep. They show about 13.84 Vdc when the red probe is on yellow Pin 5 and black is on Pin 2 and Pin 3. Obviously, these are the peak voltages without other loads connected.
Power supply is a SONY model CR-44 (Apple part number: 699-5047. This is an original power supply for an SE, but I've used it no problem with an SE/30 logic board.
I'm going to assume that the power supply at this point is working fine and I should be focused on the analog board. No burnt smell on PSU or indication inside and out of fried electronics.
Any thoughts?
73s de Phreakout. :rambo: