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No image on screen, BUT with external monitor its working 100% fine
SINCE I do not have same MBP A1502 screen to test and check if its BAD screen. Is there any other test that I could make?
Can I test an old A1278 screen on this model to check?
Any other method to test before going...
Why do you care for SATA if the machine does NOT turn on? for me it does not make any reasonable sense.
The machine is in short connected to POWER how the HELL sata will make any difference. I already tried connected with SATA + POWER connector and its the same beahavior. However I REMOVE...
WERE MY MESSAGES NOT CLEAR?
I already told you that I tested:
01 HD 2.5";
01 Original iMac HD 3.5
All of them USING the only and one J4511 which came with a cable to connect to it.
J4530 = SATA ports so I dont get it why you mention it if its related to the POWER connector J4511 and...
Disconnect thunderbolt and ODD.
Also remove HDD from the end cable; keep the cable connected to J4521.
The board turns on and have LED 3, I didn't put the speaker but I guess it has chime also.
I DO NOT HAVE NOTHING CONNECTED TO J4530/31
Of course the cable is OK
Of course the cable is connected on the right position
Of course the thunderbolt was connected the right way
I am afraid the ODD connector I could plugged it wrongly since it came off the board..... only this one
My latest test I only plugged the 2 power connector on...
I do not have another iMac PSU. Unfortunately so I can do as many tests as I can with this one or ONLY if you are 100% sure I need to another one to get this working machine yes.
Should I look for short on the thundertbolt connector? J9400?
Only with HDD same beahvior as with thunderbolt...
The board connected with iMac PSU, CPU COOLER, RAM connected goes to LED 3 FULLY STABLE with fan spinning like its normal.
However if I connect or try to turn on with an external monitor through HDMI on the thundebolt port it only appears LED 1 and doesnt even have fan spin...
Also tried directly on S5010 shorting pin 1 and 3 for some seconds
Now I NOTICED the fan tried to start stronger but it only gives a STRONGER HALF SPIN and its in a LOOP also
I guess it tries to start in SMC BYPASS and it's not able to.
Anything else to check?
External Monitor through thunderbolt port using HDMI cable is it possible?
S5010 hold for 10 secs with a tweezer PIN 1 to PIN 3 ok?
Then plug the power cord on it and release? thats SMC ByPass right?
I tried holding the tweezer for 10s right on the power button (J5010) and then...
With HDD POWER (J4511) connected to the board
ODD NOT connected as requested
LED 1 = Stable Working
LED 2 = Bling as soon as the power cable is connected and then turn off totally
LED 3 = OFF
LED 4 = OFF
PP12V_S5 = 11.98
PP12V_S0 = tries to go to 11.98 and then it drops to 1V ... 0.300 ...