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MacBook Pro 13 (820-3115-B) No display to the screen
https://vlab.su/viewtopic.php?f=51&t=62024
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bridx [ 01 июн 2017, 22:00 ]
Заголовок сообщения:  MacBook Pro 13 (820-3115-B) No display to the screen

Hi,

It has an i7 3rd generation processor. Checked (LVDS_IG_PANEL_PWR = LCD_IG_PWR_EN) at U9000 Pin 1 but not voltage was present, could replacing with a new PCH (SLJ8E) resolve the fault?

Regards.

flusher [ 01 июн 2017, 22:47 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

do you have image on external TV via thunderbold convertor/cable?

pyry [ 02 июн 2017, 01:22 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

Is the fan spin?

This measurement is done with the screen connected?

bridx [ 02 июн 2017, 09:10 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

flusher писал(а):
do you have image on external TV via thunderbold convertor/cable?

I will get one today and try.

Posted after 3 minutes 3 seconds:
pyry писал(а):
Is the fan spin?

This measurement is done with the screen connected?

Yes with the screen connected. I even tested that screen with another working board and it works fine. The fan does spin at high speed after a few seconds of being on.

lamo [ 02 июн 2017, 14:06 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

check l9008

pyry [ 02 июн 2017, 18:10 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

I agree with lamo if after reviewing l9008 and l9004 and these coils are not open changes the LCD CONNECTOR and if this does not solve the problem then the PCH may be your problem

Ufolog [ 25 июн 2017, 21:05 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

Check efi

dupahuj [ 29 авг 2017, 01:58 ]
Заголовок сообщения:  Re: MacBook Pro 13 (820-3115-B) No display to the screen

You have hime sound on speaker ? And also can tell me idle power consumption of motherboard (only with ram connected)

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