logic board not sending any video signal to display.
i got a broken macbook unibody model a1278 that im trying to fix. when the machine is turned on it does full startup with chimes, but there is no display. to make sure it is not the lcd/display i tested it on another macbook unibody and is fully functional. so i assume there is something wrong with signal getting to display.
how should i go about repairing the logic board so i can get my screen working again???
any help in this situation would be wonderful
thanks
Check with an external monitor. If you get that working, you know that your video board is working.
由 oldturkey03 完成的
You say <<when the machine is turned on it does full startup with chimes, but there is no display>> do you mean the screen is completely black or you have a lightened gray screen ?
由 lemerise 完成的
so i hooked it up to my tv through the mini display port and works wonderfully. when hooked up to the macbook screen its black. when i put flashlight to screen there is nothing there.
i bought a new lvds display connecter for screen. to make sure it wasn't screen i hooked that up to another macbook i have. when hooked up to that the screen worked wonderfully. so now im truely stumped. or could it be the actual lvd socket on logic board ????
由 hrdcrgldtr 完成的