lenovo G5030 Backlight issue ACLU9ACLU0 NMA311

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Case Study • Company- Lenovo • Model- ACLU9/ACLU0 NM-A311 • issue- No Backlight • First checked VDD_LCD ok • then check LCD_VDD_Con ok • and other voltage also ok • then check Inverter_PWM not ok it should be 3v. • checked its ckt signal comming from PCH so removed its ckt and added 1k resister to inverter_PWM to 3vs pin • No checked for backlight ok. • #Case_Study #Backlight_issue

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