LCD Backlight problem I mac27 late 2013
I have received the above imac for FREE : ) with the below issues and trying to figure out if it is worth to fix it. I hope you'll be able to help me out :)
Internal Dispaly is not working - external OK
Diagnostic LED's - 1,2,3 OK - 4 is off
Replaced LCD cable ( 2 pins were bent and sticked to each other )
I did a SMC/PVRAM Reset
A faint image is not visible ( checked in dark room and flashed the light on )
Run hardware test : may be an issue with System Management Controller PFM006 and with the display VFD001
The visual check showns blown part - as on the attached link( not shure if it has been caused by connecting a faulty cable and have not found logic board schematic to figure out what is it - fuse / capacitor etc....
Is there any way to test LCD panel it self ?
The L4400 has now been replaced and the 4th LED is on !!! There is only a lot of stripes on my LCD unfortunetelly ....
What do you think guys ? is it dead display or something else ? - when I touch the LCD connector on the logic board the stripes are changing.......
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