820-3115 its me i already know it, just really hope to find out what i am fucking up

Repairable

Active member
5 lcd assmeblys tested on a known

3 pieces of 820-3115

CHIME: YES
MOUSELIGHT: YES
BACKLIGHT: NO
IMAGE: cant see, un able to even find a part where you see the wave form when you turn it on
no video when connecting screen with displayport
other lcd same issue


PPBUS_G3H 12.58v
PPVCORE_S0_CPU 0.893Volt
SMC_LID 3.463Volt
R5071 99.9K
R6961 99.7K

LCD_IG_PWR_EN 0.000 volt when you just connect charger

PRAM Reset dont on al 3 (nice long dongs everytime )

J9000

pin 4 3.3V
pin 6 3.3V
pin7 3.3V
pin 21/22 0.0000V (on 1 i get 0.0009V)

Pin 4 0.312
pin 6 0.490
pin 7 0.515
pin 21/22 0.536 (on 1 i get 0.558)

Lost something with staring mutch to long at these boards and losing it...
 
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