Dell Inspiron 15 3511 - brak startu, grzeje się charger

Resistance is 330ohm .... short circuit test on PRB02 ?

Resistance too low do short circuit tests.

Repeat the test on PRB01 or PRB02? On PRB02 at 1V, current consumption is 0A

Measure the resistances on all coils in reference to any pin of resistor PRB02.

PL301 - 20kohm
PL1801 - 2,3Kohm
PLG2 -840ohm
PLZ01- 230ohm
PLZ02 -220ohm
PL501- 11,5kohm
PLB01- 200kohm

Perform a short circuit test on any pin of resistor PRB02. For a short circuit test limit the voltage to 19V.

19V - current consumption 0.02A - no short circuit on PRB02

Measure precisely and with a suitable instrument, with a charged battery, the resistance to ground on PRB02.

57.4ohm .. checked on two multimeters

With 57.4ohm the short is present. Maybe you get the reading wrong and it's 57.4 kohm?

I'm sure the measurement is 57ohm (not kohm)

When connecting the power supply, service to perform a short-circuit test - the short-circuit diode will flash for a fraction of a second to indicate a short-circuit, but it immediately disappears and no current consumption is visible

Disconnect the power supply and main battery then wait about three minutes and remeasure the resistance to ground on any pin of resistor PRB02 with both polarities of test leads.

The board was unplugged all night - without power or batteries. Resistance from PRB02 to ground on both pins in both directions 50.1 ohm.

After desoldering PUB01, the resistance on PRB02 to ground is 272 ohms

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edit;

I replaced PUB01 again, the notebook started again. After connecting the battery, the consumption is 0.04A and nothing happens. The equipment was returned to the owner, working but without a battery or charging. It is not always possible to solve the problem - Thank you very much for your help and time.