Acer 4732Z-2332 no power ( HM40-MV 08242-1M 48 4BW01.01M ) | |
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| eletmoraes 01/10/2013 18:42 |
fuses power input, all good. entering the 19v, ok.
nothing heating (cold component) . Where to start researching? . Is it a matter of BGA? The client reports that it was an hour to another that the notebook is not power. I'm checking the circuit and now I'm analyzing the component (TPS51125RGER-GP). Measuring the voltage at pin 20 of these components there is no voltage of 5v_PWR and in pin 16 there voltage of 19V (DCBATOUT). Without the battery, the power LED is not lit and the battery in place the battery LED is lit. Also there is no voltage (3D3V_PWR). Does the component (TPS51125RGER-GP) is damaged? |
| Сергей92 01/10/2013 19:55 |
Может быть и выгорел. Посмотреть бы даташит (без даташита трудно представить...) |
| eletmoraes 03/12/2013 22:19 |
I noticed that the line of 3.3v has short circuit in one of the terminals of the coil L15. I disconnected one of the terminals and applied a voltage of 3.3v from an ATX power (orange wire). By applying this voltage the capacitor TC8 smoke came out indicating to me where would be short. It was only changing the capacitor so that the Notebook back up normally. |
