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A1534 820-00244 no power

H

hgoncalves

Active member
Hi.

I have an A1534 820-00244 with no power. Client said it stoped working over night.

I have 20V on ampmeter but 0A.

No big coil seams shorted.

SMC bypass didn't work.

PPBUS_G3H = 8.69 w/o battery

PP3V3_G3H = 3.2V

Triggering SMC_ONOFF_L I have a drop pulse at PM_PWRBTN_L (3.3V to 0.500V)

PP5V_S5 = 5V
PP5V_S0 = 0V

Can you help?
 
H

hgoncalves

Active member
Now, and before heating the CPU, I have no voltage on ampmeter.

Sudently, the ampmeter doesn't even power on (stays black)

PPBUS_G3H, PP3V3_G3H and CHGR_ACIN aren't shorted.

Any idea?
 
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