La-c701p Rev 1.0 Boardview 📌 🆒

Introduction

File Format Notes:

2. The "Running on Battery Only" Fault

• Cause: Failed current sense resistor or broken trace between the battery connector and the charger IC.
• Diagnosis using boardview: Check SRN and SRP (sense resistor pins). The boardview shows the exact resistor (usually PR101 – a 0.01ohm, 2W resistor). Measure resistance; if open, replace.

Part 4: Common Faults & Boardview-Based Fixes for LA-C701P Rev 1.0

Here are practical repairs using the boardview. La-c701p Rev 1.0 Boardview

, which is a frequent point of failure in liquid-damaged units. Visual Aid: Introduction File Format Notes: 2

1. Locate Short Circuits: The high-current GPU power rails often develop shorts. Using the boardview, you can inject voltage and quickly find the hot ceramic capacitor without desoldering the entire GPU.
2. Identify Unmarked Components: This board uses microscopic "zero-ohm" jumpers and dual-transistor packages (DTC/DMD). The boardview tells you the exact value and part number of a component that looks identical to three others nearby.
3. Trace Hidden Vias: Due to the multi-layer design, a signal might enter a via on the top layer and exit on the bottom layer under a BGA chip. The boardview visualizes these hidden connections.

Why You Need the Boardview File

A schematic tells you that Resistor R4701 connects to Pin 3 of Chip PU4501. The boardview tells you exactly where R4701 is physically located on the green board. Cause: Failed current sense resistor or broken trace