[prev in list] [next in list] [prev in thread] [next in thread] 

List:       olpc-bugs
Subject:    Re: #12766 HIGH Opportu: XO-1.75 not charging batteries
From:       "Zarro Boogs per Child" <bugtracker () laptop ! org>
Date:       2014-03-26 22:14:42
Message-ID: 044.77e56bd1f767e23990fbab75993fd1c4 () laptop ! org
[Download RAW message or body]

#12766: XO-1.75 not charging batteries
-------------------------------------------+--------------------------------
           Reporter:  Quozl                |       Owner:  Quozl           =
        =

               Type:  task                 |      Status:  new             =
        =

           Priority:  high                 |   Milestone:  Opportunity     =
        =

          Component:  embedded controller  |     Version:  Software Build 1=
3.2.0-13
         Resolution:                       |    Keywords:                  =
        =

        Next_action:  diagnose             |    Verified:  0               =
        =

Deployment_affected:  ni                   |   Blockedby:                  =
        =

           Blocking:                       |  =

-------------------------------------------+--------------------------------

Comment(by Quozl):

 Digital multimeter measurements of gates of charging switches:
  * BGATE, pin 4 of PQ61, (6.16 V)
  * LGATE, pin 4 of PQ67, (0.21 V)
  * UGATE, pin 4 of PQ66. (7.58 V)
 Means the charger chip is driving the charger circuit, and excludes
 everything to the functional left of PU16.

-- =

Ticket URL: <http://dev.laptop.org/ticket/12766#comment:2>
One Laptop per Child <http://laptop.org/>
One Laptop per Child bug tracking system
[prev in list] [next in list] [prev in thread] [next in thread]