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💻 Master Course: Laptop Chip-Level Repair

Duration: 8 Weeks | Level: Beginner to Advanced | Focus: Component-Level Diagnostics

📅 Month 1: Fundamentals & Circuit Architecture

Focus: Master the tools of the trade and the "language" of motherboards.

Week 1: Essential Foundations & Tool Mastery

Get comfortable with the hardware and software used by professional technicians.

  • Precision Tooling: Mastery of the Multimeter, DC Power Supply, and Micro-Soldering stations.

  • The Blueprint: Understanding Laptop Architecture (PCH, CPU, EC, and BIOS relationship).

  • Component Identification: Deep dive into SMD components (Resistors, Capacitors, Diodes, Inductors).

  • Digital Navigation: Introduction to Schematic Reading and Boardview software (OpenBoardView/Allegro).

Week 2: The Power Logic & First-Stage Rails

Learn how a dead board "wakes up" from the moment the charger is plugged in.

  • System Rails: Analyzing the +3VALW and +5VALW standby voltages.

  • Switching Theory: Testing N-Channel and P-Channel MOSFETs in-circuit.

  • Power Sequencing: Tracking the signal flow from VIN +3VALW/+5VALW -> S5, S3, S0

  • Initial Diagnostics: Identifying "Dead Board" symptoms and primary short circuits.

📅 Month 2: Advanced Diagnostics & Clinical Practice

Focus: Trace complex signals, reflash firmware, and solve real-world failures.

Week 3: Charging Circuits & Power Management

Solve the most common customer complaint: "It won't charge."

  • Charging Logic: Decoding Charging ICs (BQ-series, ISL-series).

  • The Path of Power: Tracing the DC Jack to the Battery terminal.

  • Communication Bus: Troubleshooting SMBus/I2C signals (Data & Clock) for battery detection.

Week 4: Firmware, Timing & The RTC Section

When the hardware is fine but the "brain" is frozen.

  • BIOS Deep Dive: SPI Flash protocols, chip removal, and clean ME Region programming.

  • Clock & Rhythm: Testing Crystals and Clock Generators.

  • RTC Section: Troubleshooting the Real-Time Clock and CMOS battery impact on POST.

  • Error Decoding: Translating Beep Codes and Diagnostic LEDs.

Week 5: Core Processing Rails (CPU, RAM, GPU)

High-current diagnostics for performance-related failures.

  • VCC_Core: Understanding the CPU Multi-phase power supply.

  • Memory Rails: RAM power enables signals (DDR3/4/5 voltage requirements).

  • Graphics Switching: Integrated vs. Dedicated GPU power-up sequences.

  • Thermal Management: Solving "Fan Spin but No Display" and thermal shutdowns.

Week 6: Clinical Case Studies & Final Lab

Apply your knowledge to real-world "bench" scenarios.

  • Liquid Damage Recovery: Ultrasonic cleaning and trace reconstruction.

  • Voltage Injection: Safely using a DC Power Supply to find "invisible" shorts.

  • No-Display Logic: A step-by-step flowchart for diagnosing dark screens.

  • Final Assessment: Real-world motherboard fault-finding exercise.

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