iMac.s Internal Display not working, External does.
Internal Display not working, External does.
Hi, I have read a lot about this issue and have done some of the things to rectify this issue but could not resolve this.
First, When I power on the Imac, I can hear chime, Hard drive and fan noise, Three led are lit on the logic board, while fourth remains off. I checked by changing Graphics Card, Inverter Board, Power Supply and lvds connector, and even LED. But still not able to see anything on internal LED while when I connect External monitor, I can use it as a normal mac.
Please help, What can be the issue.
Cette question est-elle utile ?
First couple of troubleshooting questions are: Have you done either a PRAM reset or an SMC reset?
par Shmajay
See if you can discern the desktop with a flashlight.
par mayer