Search This Blog

Wednesday, August 16, 2023

Lenovo g580 not power on


Lenovo g580 
Prblm- not turning on
Action- 
            Open laptop board I see DCIN section CLR damage, 
                               Change CLR and trigger board display come
   But, 
        Major issue create-
                                       Battery plug in charging but % not increase 
 
Trace this prblm -
   1st mosfet completely switching 🆗
2nd mosfet switching 👌

 SDA,SCL path 👍
                          ( battery connector - ic - io)
   
 Battery sense resister ✅ 
Check voltage ,
      SDA, SCL PATH (3.3V)👌
   
Then, 
         I check resistor value
   SDA path resistor value ✅

SCL path resistor value not good🦸
  Change SCL path resistor  

 Battery fill percentage 

Prblm solved
👌👍

No comments:

Post a Comment