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| Hp 15 (Quanta U92 Rev::D) No display fan running full speed constantly https://vlab.su/viewtopic.php?f=40&t=29756 |
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| scobay [ 26 фев 2015, 20:53 ] | |
| Заголовок сообщения: | Hp 15 (Quanta U92 Rev::D) No display fan running full speed constantly |
Hi I have a Hp 15 Quanta U92 rev:d with evidence of spillage on the dvd tray but no visible signs on the motherboard except for Sio which looks a bit grubby. Laptop powers up fine but to black screen and fan runs continuosly at full speed. . Voltages at CN1 are pin2 1+2 = 19v pins 4-7 =3.3v pins 9-15= 0v pins 16-23=0v pins 24+25 = 3.3v pins 26+27 = 0v pin 28 =3v pins 29,30 = 0v. Pl18 = 72Ω PL5 = 135kΩ PL12 = 23Ω PL17 = 10Ω PL25 = 400Ω PL15 = 118Ω Pl22 = 7.8kΩ PL21 = 15kΩ The schematic Im using is for the 1a version and is different as some ics are not present on the rev d: board. Any help appreciated |
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