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all look ok

apple logo on lcd but whit no backlight if i use flashlight from the back and light the apple logo i can see no ssd flashing folder so it is working but no backlight like on this photo from internet

C9719-12,59 no backlight

I can change U9701 i got one on 3323 board

lcd_hpd is 2,77V on r9000 -leg 1 leg 2 - 0v on l 9000 there is 4,99 V LCD_BKLT_EN 3,34v LVDS_BKL_PWM_R - 3,21v BKLT_EN - 3,12v

i can reball the camera chip. it could help?

bkl_en - 3,34 blk_pwm - 0

3-on r7715 - 568 4-on c7704 - 553 5-on d7701 - 595 6,7 on d7701 - 428 8 - on r7714 - 554 9 - on r7716 - 568 10 - gnd 11/ 16 - on c7710 - 424 12 - on u7701 - 565 13 - on tp7701 - 554 14 - on c7711 - 347 15 on r7719 - 633 17 on r7755 - 565 18 - on r7753 - 494 19 - on r7757 - 495 20 - on r7718 -...

no history , i get him whit ssd problem.

u7701 check lines : 1-gnd 2-gnd 3-1 4-1081 5-1 6,7- 1600 rising to 2000 then 1 8-1324 slowly rising 9-1434 slowly rising 10-gnd 11-1410 12-1420 13-1 14-532 15-1 16-1416 17-1944 for sec then 1 18-844 19-844 20-1 21-1 22-1 23-1 24-gnd 25-1

there is continuity D7701 and A5 , R7717-22 are ok , i check on 2 lcd - the same ...

l4009/7 ok , and there is continuity J4002 - L4009/7

i got keyboard backlight , camera not recognized in system report

i change u 7701 still the same, on c8317 power is droping slowly from 19-8,5v any idea? there is apple logo but no backlight

Camera not connected in photo booth . camera is connected and its powered J4002 pin 12 5v i check on other camera - and the same

i got apple logo but no backlight, U7701 look ok there is continuity, will check forum too

Q7707 1-0V 2-3,3V 3-0V 4-0V 5-3,3V 6-0V D7701 2 - 8,5V C 8317 1- 18V at start and going down to 8,5V

ok now its working. thx a lot and sorry

U3740 1-3,44V 2-1V 3-3,3V 4-3,44V 5-0V 6-3,3V 7-0V 8-0V

ok i got 0V again P3V3_SSD_EN_L R8070 1-0V 2-0V Q8070 1,2,3-3,3V 4-0V 5-3,3V PP3V3_S0SW_SSD -3,3V