820-2915 No green light on Magsafe

Neil250

Member
Q5310 OHM MODE TO GROUND:

1: 0.2 OHM (GND)
2: 500 kO
3: 28 kO
4: 2 ohm
5: OL
6: OL

Removed Q5030 and checked, same readings.
 
Last edited:

Neil250

Member
Q5310 removed

Short on Pad 4

R5313:
PIN 1: OL
PIN 3: OL

As above:

R5311
PIN 1: OL as trace was cut to pin 4 Q5310
 

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2informaticos

Administrator
Staff member
No need to remove Q5310, if you post correct information.
I asked you to remove it, because of this
"Q5310 PIN 2 is also short to ground"
So, post accurate information!

Try to find a way to isolate layers short inside the board...
 

Neil250

Member
Sorry.

Q5310 DIODE MODE TO GROUND:

1: SHORT (GND)
2: 0.500 V
3: OL
4: SHORT ---------------> IN OHM MODE this is 1.7 Ohm
5: OL
6: OL
 

2informaticos

Administrator
Staff member
No need to repeat, please.
Don't waste time, try to isolate the f***g short.
Is not easy, as explained; maybe better to leave it...
 

Neil250

Member
leave it? Are you joking?
Come on
i posted correct info now

I cut traces, you explained that to me. I did it correctly
i moved to isolate it and I found a problem at Q5310
That trace leading to pad 4 should not be short
I thought that was the f**ging short that I found

now I want to know if that is correct and how to proceed
am I wrong about this trace now?
 
Last edited:

2informaticos

Administrator
Staff member
How can Q5310 generate the short, if has NO other pin connected to ground (apart of pin 1)???
Your problem is inside board, between copper layers.

You didn't separate PPDCIN_G3H in sufficient points.
And probably will not even be possible; that's the reason I said "leave it"...
 
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