Dell Vostro 1550 (10316-1 DV15 HR) ⁉️Problem - No power

💻 Dell Vostro 1550 (10316-1 DV15 HR) ⁉️Problem - No power 🔍Physical verification - no physical damage, fresh motherboard, not attempt to repair. 🪛Checking -There is no shorting in motherboard and all coils impedance are ok. DC supply shows 0000A but 19V is OK till CSR. Then check RTC section, First replace RTC cell which is low with new one. RTC 3.3V supply is passing through R6002 and it's OK till pin number 1 of Q6001. But 3.3v is not passing through it and it's missing on pin number 3 of Q6001 where it will be called RTC_AUX_S5. 👉Solution - Remove Q6001 and check impedance on pin number 3, it's good means there is no further shorting. Replace Q6001 with OK one. 😃Result - Now 3.3v is passing through Q6001 and RTC_AUX_S5 is present on number 3. Now laptop is power on, display came and it's working perfectly. Copyright Case Study For Learning