Good day Gentelmen,
Hope everyone is staying safe these days...
Got a dead A1418 with NO service LED's turning on, yet I guess it is a popular thing with this generation of iMacs.
Searched the entire forum here for anything on a dead iMac with no service ON.. LED(s) with a supply that puts-out 12v at the power connector. I guess mine is the exception with a unique problem.
I was expecting to see multiple voltages like a PC power supply from that six-wire output, but all it's just "+12v DC"( 3 wires for ground and 3 wires for +12.1v ). All the other voltages needed the main digital board regulates them down.
Wondering if really the "Power Good" connector really has anything to do as it really seems I should have the one-LED lit-up with the 12.1 volts at the main output terminals, or did the "power good" electronics on the power supply went out, and it just cannot communicate with the digital board.
The power supply is a Delta Electronics ADP-185 BFT CCA. Some numbers on the supply are +12.1v @15.4A TDC-168
I wish I had a pin-out of the power-good connector, or maybe inject some voltage, orrr short something to jump-start it to see the diagnostic LED(s) come-on.
I removed the main board and removed the coin battery, and shorted the terminals of the digital board at the coin battery, and my coin battery is measuring 2.99 v
Should I just gamble it and buy another power supply when I have 12.1v at the main terminals?
Some other info on this A1418 iMac it went dark on a stormy day in Puerto Rico.
Any suggestions/tips...
Thanks,
Martin
Hope everyone is staying safe these days...
Got a dead A1418 with NO service LED's turning on, yet I guess it is a popular thing with this generation of iMacs.
Searched the entire forum here for anything on a dead iMac with no service ON.. LED(s) with a supply that puts-out 12v at the power connector. I guess mine is the exception with a unique problem.
I was expecting to see multiple voltages like a PC power supply from that six-wire output, but all it's just "+12v DC"( 3 wires for ground and 3 wires for +12.1v ). All the other voltages needed the main digital board regulates them down.
Wondering if really the "Power Good" connector really has anything to do as it really seems I should have the one-LED lit-up with the 12.1 volts at the main output terminals, or did the "power good" electronics on the power supply went out, and it just cannot communicate with the digital board.
The power supply is a Delta Electronics ADP-185 BFT CCA. Some numbers on the supply are +12.1v @15.4A TDC-168
I wish I had a pin-out of the power-good connector, or maybe inject some voltage, orrr short something to jump-start it to see the diagnostic LED(s) come-on.
I removed the main board and removed the coin battery, and shorted the terminals of the digital board at the coin battery, and my coin battery is measuring 2.99 v
Should I just gamble it and buy another power supply when I have 12.1v at the main terminals?
Some other info on this A1418 iMac it went dark on a stormy day in Puerto Rico.
Any suggestions/tips...
Thanks,
Martin
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