• HP Pavilion 15 DA0U83MB6E0 - po zalaniu brak 3.3 i 5V

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#1 HP Pavilion 15 DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by lukasrz 23 February 2017, 14:11
Cześć,

Mam na stole płytę DA0U83MB6E0 która dostała niewielkie zalanie w okolicy jakiegoś układu U21 i przetwornicy PU9, jest to któryś z RT8223. Nie znalazłem żadnych zwarć, napięcie 3.3V na włączniku jest ale nie ma napięć 3.3 i 5V na PL17, PL18

Prosiłbym o pomoc w diagnostyce tego układu:

1-0
2-0
3-2.0V
4-5.0V
5-0V
6-0V
7-0V
8-3.3V
9-4,5V
10-0V
11-0V
12-0V
13-2,7V
14-0V
15-0V
16-19,5V
17-5,0V
18-0V
19-0V
20-0V
21-0V
22-4,5V
23-0V
24-0V

Re: HP Pavilion 15 DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by Google Adsense [BOT] 23 February 2017, 14:11

#3 Re: DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by lukasrz 23 February 2017, 14:55
Machine wrote:Measure the voltages on pins 64, 65, 76, 95 of U12 (KBC).


64-0V
65-2,7V
76-3,0V
95-0V

#5 Re: DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by lukasrz 23 February 2017, 17:05
No. Regulated power supply. 0-30V 5A max

#7 Re: DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by lukasrz 22 March 2017, 16:33
I checked on original PSU the voltages are the same

64-0V
65-2,7V
76-3,0V
95-0V

What does it mean?

#9 Re: DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by lukasrz 24 March 2017, 15:13
DC JACK PIN5 - 0V
D10 1SS355 - 3,3V

#11 Re: DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by lukasrz 24 March 2017, 16:49
OK but on the same PSU other HP notebook is working, it's new WHITENERGY 10091

Re: DA0U83MB6E0 - po zalaniu brak 3.3 i 5V


by Google Adsense [BOT] 24 March 2017, 17:38
This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).

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