Combo problem of my backlight disappearing and random sleep mode?
Model A1181 mid 2007 Black Macbook, software all up to date.
Background: Twice last week I was on Facetime and the display went black (not sure if it was dim ala backlight or black) I could still hear the person speaking, hear my music, but no display.
Friday night I threw in two new memory sticks. Not related to any issues, just wanted to upgrade from the 1gb of factory RAM. Everything was working fine.
Saturday night. I was browsing the internet and about 10 minutes in, my screen went dim (not black, ala looking with a flashlight and you could still see some display.) After the display went black about 10 seconds later the machine went into sleep mode. I hit the space bar, it came out of sleep, the display did not come back (dim, not black) but after about 5 seconds it went back into sleep mode.
If you power down and power up via the power button the display will flash a dim white for about two seconds then go completely dim. I can barely see the apple logo. Tried to turn the brightness all the way down and all the way up trick numerous times. No dice.
Last night I got a flashlight out and tried to boot up and "get in" so I could see if there was anything I could do. Regardless of activity the machine just keeps going into sleep mode. Also, I noticed that upon boot, once it goes into sleep mode, two things... 1: It only goes into sleep once the log in screen shows up. 2: If you open and close the lid, it does not wake or sleep the machine.
What I've checked: I took out the new RAM and replaced with the old. Triple checked that it was seated right. Same problem. I've reset the PRAM and SMC multiple times.
Would it make sense that all at the same time my backlight or inverter or inverter cable took a dive the same time as the sleep sensor?
If it is the logic board, is there a means for me to test it?
I'm assuming my board is toast. But, it would make sense to repair/replace the cheapest options first. Right? This screams hardware failure. But right about the same time I noticed a few people posting the same thing on various other forums. No one is answering. I wonder if people are too afraid to send them the telegram that their soldier has died in combat.
Is this a good question?