820-3115 LCD_IG_PWR_EN is missing

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yes I measured with known good LCD connected.
and on U9000 pin one LCD_PWR_EN is missing but pin 2 and 3 are ok.
and on the LCD connector pin 2 and 3 PP3V3_LCDVDD_SW_F is missing
pin 6 LVDS_DDC_CLK is 3.4
pin 7 LVDS_DDC_DATA is 3,4

 

[2informaticos]

Seems that LCD is not detected.
Do you surelly have USB activity?

 

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Yes Sir when i plug a usb mouse the red light turns on ( I tried with different mouses ). And also on L7510 and L7520 I get 0.88v but on L7550 I gent 0.35v.
(The L7550 is PPVCORE_S0_AXG_R)

 

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I've replace the U7000 with a new one( not from a downer board) because be for L7520 and L7510 had 0v.

 

[2informaticos]

What relation you've seen between U7000 and L7510/20???

"L7510 and L7520 I get 0.88v but on L7550 I gent 0.35v
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for L7520 and L7510 had 0v"
What this mean???

 

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be for i didn't have cpuvcore because of the U7400 I decided to replace U7400 and Q7510, Q7520 and Q7550 after replacing them I get 0.8 on L7510,20 and 0.3 on L7550

 

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CPU_VCC_VALSENS_N and CPU_AXG_VALSENS_N are missing but

PPVCORE_S0_CPU is ok and CPU_VALSENS_P is also ok