820-00138-a fan spin, no chime or image on screen..

[shlom]

hello

i have a problem with the 820-00138-a
mid 2015 retina 15'' model...

the board seem to be working, screen power on the apple on the back is light up
both fans are spinning, but no chime or reaction to keyboard..
also no image at hdmi..

i want to do some diagnose and tried to get boardview for it
but i saw that there was none available in the past... is it still unavailable? nowhere to get\buy boardview for this?

thanks..

 

[2informaticos]

Look if 820-00163 is close enough...

 

[TCRScircuit]

No files available for this one that I know of. They cheat you into buying a older board view listed as a 00138. Use a 00163. What is the history? Voltage on CPU vcore?

 

[JohnB8812]

If you are indeed getting backlight but no image, I would try another BIOS for testing. KEEP the old one!

 

[dukefawks]

If backlight comes on then the board is working mostly! Try external screen from thunderbolt and disconnect LCD.

Do a PRAM reset and see if chimes comes back.

 

[shlom]

does not respond to pram reset

will try with external keyboard, if not work i will try to replace the bios

thanks...