Welcome, Guest
Please Login or Register.    Lost Password?

Problem with DELL 640M.
(1 viewing) (1) Guest
Go to bottomPage: 1
TOPIC: Problem with DELL 640M.
#60
laptrep
Fresh Boarder
Posts: 1
graphgraph
User Offline Click here to see the profile of this user
Problem with DELL 640M. 7 Years ago Karma: 0
DELL 640M (DB2 M / B 05224-1 48.4E201.011) after connection with not the native PSU. I think that plug from another HP, which has the same plug, but on the central wire is present about 15 volts. Replaced the MAX8731E (U5 charge) - the chip was a hole and burned switches U10 and U11 and TPS51120 (U12 - 3.3v and 5v), short circuit in the low-current source 3,3 v. Laptop starts, but does not recognize the native PSU RA-12. Please help with a piece of circuit formation signals PS_ID identification PSU from the power connector to the SIO MEC5004. I want to check the transistor switches in this circuit, before sentencing to SIO.
 
Last Edit: 2011/01/24 15:40 By Administrator.
The administrator has disabled public write access.
#61
igorx1972
Fresh Boarder
Posts: 3
graphgraph
User Offline Click here to see the profile of this user
Re:Problem with DELL 640M. 6 Years, 12 Months ago Karma: 0
 
Last Edit: 2011/01/25 12:03 By igorx1972.
The administrator has disabled public write access.
Go to topPage: 1
Moderators: Administrator
JoomlaWatch Stats 1.2.9 by Matej Koval

escort izmir