#21 Re: DELL N2830 mb: VBW00 LA-9981P rev 1.0 (A00) - brak startu - grzeje się PU300
от pawel1978 • 16 Октябрь 2018, 10:27
matic писал(а):mlozynski писал(а):Co ciekawe 7 noga nieistniejącego ukłądu ma rezystancję do masy 4ohm .. wygląda na przywarte +3VALW ?Yes, if you count the pins correctly.
To be sure measure the resistance to ground on coil PL100. If there is the same resistance, it is shorted to ground. If so, perform a short circuit test on coil PL100.
On the PL100 coil also 4ohm. During a short circuit test, the current consuption reaches 0.4A and stops growing