a1418 no good gpu_signal, 820-3558-a

[skynetwarmax]

This case a colleague already had and I have decided to make a new post on my part because I have the same problem, the 3 gpu led is not enabled, in the post it is recommended first to know if it was gpu to turn on the equipment without ram and see If it was beeping, my question if I do not have beeps where can I start to check?

 

[2informaticos]

Do you get voltage on all big coils of the board?
Any history fault available?

 

[skynetwarmax]

I have the following voltages present with both on

l7110-1.7v
l7130-1.7v
l7150-1.7v
l8100-0v
l7310-1.35v

It should be noted that the team at one point gave me 4 LEDs but it did not give me an image. I realized that when I put a ram module in the j2500 module the equipment stayed on 2 led. now it only remains on 2 led.

 

[skynetwarmax]

The team only gave me 1 led and right off the bat, checking the lines, it started to give 2 led without changing any component, I did not have the 5v source but I think I remember 3.

 

[2informaticos]

What schematic do you use?

 

[skynetwarmax]

zhinzhizao program, have the schematic for the plate 820-3558-a

 

[2informaticos]

I can't find it there.
Are you sure your board isn't 820-3588 instead?

 

[skynetwarmax]

It is the model, I am that I use the xinzhizao program a lot since it brings all or almost all the schematic.
t does not let me upload the schematic or the boardview, anyway if they are that I have also downloaded them from the internet. Let's see if you see something that escapes me, thank you

 

[2informaticos]

As I said, is 3588, not 3558.
Please, post accurate information in the future.

Schematic and boardview available on Internet, not just in XZM software.

Do you get L7110/30/50 voltage with just 2 LEDs on?
No need to check the 3 coils, one reading is enough.

Also check U8600 outputs level.