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| hp_compaq_6730b (6050a2219901-mb-a03) no power https://vlab.su/viewtopic.php?f=53&t=26410 |
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| robertevoula [ 18 ноя 2014, 13:55 ] | |
| Заголовок сообщения: | hp_compaq_6730b (6050a2219901-mb-a03) no power |
i have hp compaq 6730b i plug charger there's no power . i mesure voltage on dc jack i find on jack1 ( 1,2) 19.9 v on (3) 6.5v and the others all mass on mosfet q510 ther's voltage on source (1,2,3) 19.9 v on gate (4) 18.9 v but no voltage on drain( (5,6,7,8) ov i change mosfet twice but the probleme still the same. any help please thanx |
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| execve [ 18 ноя 2014, 15:53 ] | |
| Заголовок сообщения: | Re: hp_compaq_6730b (6050a2219901-mb-a03) no power |
Sorry, I not read your post carefully |
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| MSF113 [ 18 ноя 2014, 15:54 ] | |
| Заголовок сообщения: | Re: hp_compaq_6730b (6050a2219901-mb-a03) no power |
Check ADP_EN# must be low PWR_GOOD_3 must be high |
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| robertevoula [ 19 ноя 2014, 11:54 ] | |
| Заголовок сообщения: | Re: hp_compaq_6730b (6050a2219901-mb-a03) no power |
thank you for anwer the voltage on U501 pin 7 for LM_393DR2G is 17.7v there's no voltage on U510 LM_393DR2G (pin1=0v, pin2=0v,pin3=0v,pin4=0v,pin5=0v,pin6=0,pin7=0v and pin8=0v) PWR_GOOD3 = 0v ADP_EN = 17.7 v |
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| robertevoula [ 19 ноя 2014, 21:20 ] | |
| Заголовок сообщения: | Re: hp_compaq_6730b (6050a2219901-mb-a03) no power |
im waiting for your help please |
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| robertevoula [ 26 ноя 2014, 11:22 ] | |
| Заголовок сообщения: | Re: hp_compaq_6730b (6050a2219901-mb-a03) no power [РЕШЕНО] |
hi sir problem is resolved i have change U36 (TPS51120) and the pc is again alive thank you for your help |
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