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Thursday, August 10, 2023

Hp LA-C701P no turning on

Put DC supply amp. 20-27
     Press power button amp. 60-65 
  When, 
             Put dc supply dc jack light glow
Means - vin is 🆗
               Ldo is 🆗
        70-80% bios 🆗
       
When checked this board I found it 
3v is okk
But ,
        5v is not ok (show-4.35v)
 Then, 
           Change this regulator IC 
    And prblm solved 

   5v comes perfectly 
 
My board turn on & give display
 
This very common prblm in this board
 

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