Скачать или смотреть ACDRV Signal Missing? Step by Step Checking Process (Part 1) | Laptop Motherboard Repair

Welcome to Part 1 of our Step-by-Step Checking Process for a missing ACDRV signal! If your laptop motherboard is completely dead and the 19V rail is not passing the first two MOSFETs, the issue is often related to the Charging IC's ACDRV pin.

In this video, we cover the exact requirements the Charging IC needs to generate the ACDRV signal and how to trace the fault step-by-step.

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Time Stamps:
0:00 - Introduction to the ACDRV Signal
1:30 - Why is ACDRV Important for 19V Distribution?
3:15 - Identifying the Charging IC and Input MOSFETs
5:00 - Step 1: Checking VCC / DCIN (Main Power to IC)
7:20 - Step 2: Checking ACDET (AC Detect Pin)
9:45 - What to expect in Part 2!

Topics Covered in this Video:

What is the ACDRV signal and what does it do?

Charging IC basic requirements (VCC, ACDET, REGN).

Multimeter testing on a dead laptop motherboard.

How N-Channel input MOSFETs are driven by the 25V ACDRV signal.

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