MBP turns on with chime but no picture
first of all, I'm an idiot. I have replaced the keyboard on this MacBook Pro but made a terrible mistake while doing it.
When connecting the display cable, the bar of the cable made contact with the connector itself and shorted it. that resulted in some smoke in the area of the first couple of pins on J9000 after turning it on.
Now the system turns on but it doesn't show an image on the screen or external monitor.
After further inspection, I found out that U9000 doesn't put anything out on pin 4/5. it receives 3.3V on pin 2/3 but LCD_IG_PWR_EN shows 0V.
J9000 to gnd:
LCD_IG_PWR_EN seems to come directly from U1800.
Has someone an idea on how to continue?
Es esta una buena pregunta?