Macbook Pro 13 A1502(820-3476-A) No image

[Ciki]

Hi the board start and chime ,the backlight output give 49V on pin 1 Lvsd but no image no backlight ,try 2 different screens still same ,PP_vcore is 1.8V ,Lcd connector looks fine no corrosion or damage,I also getting 5V on L8300

 

[Ciki]

Its very strange situation again ,replace screen and works ok,I put that same screen in another macbook working perfect .Just to say that all same models A1502 just one is from 2013,second 2014 whats the difference

 

[dukefawks]

2013/14 are the same. 2015 with force click trackpad is the model that is different.