[Trac #1285] bogus temperature with Q2B85

Zarro Boogs per Child bugtracker at laptop.org
Thu Apr 12 02:43:20 EDT 2007


#1285: bogus temperature with Q2B85
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 Reporter:  hai       |        Owner:  wad    
     Type:  defect    |       Status:  new    
 Priority:  normal    |    Milestone:  BTest-3
Component:  hardware  |   Resolution:         
 Keywords:            |  
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Comment (by Terry Su):

 Actually,the TEMP sensor design for Battery TEMP compare isn't used to
 detect system working temp. This is feeback the ambient temperature, so we
 place in very clear place (near board border)on B2 M/B. Current battery
 didn't need this TEMP parameter and we didn't get any placement change for
 others TEMP measure, so it's too later cut in B3-stage, because we already
 release Pre-B3 PCB gerber. If possible, please define this TEMP sensor for
 which detect, we'll move to correct place for detect on B3 or B4 stage.
 P.S. this sensor is very rough TEMP sensor, so can't be used to accurate
 measurement, it's used thermistor and sence voltage to EC AD calculate.

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Ticket URL: <http://dev.laptop.org/ticket/1285#comment:3>
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