Chosen Solution
So after the mess of replacing a hard drive and reassembling I have found that the LCD will not power on. It seems like it is not getting power but I have checked the inverted plug and it is connected. Any ideas? Also I’ve noticed the LED603 indicator bellow the battery is not lit, anyone know what this is for?
Why did you replace the hard drive? What was happening before you replaced it? Are the 601 and 602 lights bright? What happens when you try to start up? Have you tried starting from the CD drive? Do you get any flashing lights? Do you get a chime on start up?
Is anybody can tell me what’s led603 mean ? 601 - machine power at all 602 - logic board is receiving power 604 - display communicating with logic board 603 - ??? I have problem with 24" iMac - he’s start, but without any sound on usb ports - no power display is black of course led 601,602,604 is lighting but 603 isn’t logic board or power supply (i guess) ?
603 is “LCD_SHOULD_BE_ON” according to m38 schematic. Hope this helps!
