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| hp elitebook 2540P (MB KATIO LA-5251P ) no power led flashing panel 2 times https://vlab.su/viewtopic.php?f=53&t=89511 |
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| eletmoraes [ 26 апр 2019, 08:50 ] | |
| Заголовок сообщения: | hp elitebook 2540P (MB KATIO LA-5251P ) no power led flashing panel 2 times |
when I push the multimeter's tip into the legs of the PQ102 transistor the panel LEDs next to the lcd screen are all lit and the processor has abnormal heating and the cooler is not working. |
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| eletmoraes [ 26 апр 2019, 18:21 ] | |
| Заголовок сообщения: | Re: hp elitebook 2540P (MB KATIO LA-5251P ) no power led flashing panel 2 times |
I am already checking the voltages in PQ101 pin 1 -> 19.4v pin 4 -> 16,14 pin 8 -> comes to give a 12v and the voltage is slowly falling at this time is when I press the button to turn on the notebook Posted after 4 hours 7 minutes 15 seconds: I would like the help of colleagues to take out a question I have with the power supply of this notebook. The font that comes with this notebook is the model: PPP009L OF 18.5V / 3.5A what I need to know is the output voltages of this source, it has 3 terminals in the output according to the attached image. |
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| eletmoraes [ 27 апр 2019, 04:46 ] | |
| Заголовок сообщения: | Re: hp elitebook 2540P (MB KATIO LA-5251P ) no power led flashing panel 2 times |
I began to suspect that the problem might be in the source used with the notebook. Measuring the voltage between the earth and the central pin of the plug I get a voltage that does not exceed 2v, and another new source this voltage gets to give more or less 19V. The notebook resumes life only after I use another power source. |
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