Case Study-43
Lenovo IdeaPad 320
NM-B242
Problem Dead
Check all Coil impadance is Ok
No Corrosion On Board
Dc Reading Is 0.017- 0.023
When i Trigger the Board No Change
When i Disconnect CMOS Battery and Connect The DC Board was On And Giving me Display
But When i power off the Board and Try to Start Board Again Dead
Then I Check RTC Section replace Cmos battery,
VCCRTC ok
SRTC_RST# 3v
RTC_RST# 3v
RTC_X1 and RTC_X2 also Showing Good Value
Then i Replace YC1 32.768khz crystal But Same😔
Then I Resold io Controller same then I replace Bios Same
Then  Finally i reprogram ite8586 io Controller and Reprogram Main Bios Same Time
Now I check now DC Reading is 0.005
Trigger the Laptop restart 3 times Gives Display
Now i turn off manually and trigger the laptop its Working Normally after testing 8 hours its Working Fine proper shutting down and on also
Thank you AFS Solution and Md.Rafi Sir
Sabr ( patience )
Is Most important thing in Chip Level Repairing
Thank for Teaching US

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