A1398 820-3332-A no power

Hi,
I have an A1398 820-3332-A board, that has green light in magsafe and turns red after as few secs, but has no fanspin and no power, and consumes only 0.028A on bench PSU

I have 5V on PP5V_S5 but on PP5V_SUS I get 0V

It has no signs of liquid contact.

Can you help?
 
Last edited:

2informaticos

Administrator
Staff member
What about 3V3_S5/SUS?
Do you have original charger?
Be aware, it doesn't turn on with 45/60W charger, unless battery is connected and holds some charge.
Check PM_BATLOW_L level.
 
Hi,
We do try with original charger (2) but no response. Now I'm testing it with only the board on the bench.
I do have PP3V3_S5, but I don't have have PP3V3_SUS (0V).
On PM_BATLOW_L, w/o battery, I have 0V.
I've checked on Q5040 and R5040 and both 0V. R5040 seams to be OK (97ohms)
 
Last edited:

2informaticos

Administrator
Staff member
Is that original charger 85W for sure?
Check its real power with other machine (in system report).
Just in case, try to turn on with both charger and battery connected.

Is the battery charging?
 
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