LAPTOP CHIP-LEVEL SERVICE

About this product

LAPTOP CHIP-LEVEL SERVICE – QUICK START SHEET

What is Chip-Level Repair?
Motherboard level repair involving ICs, MOSFETs, capacitors, BIOS, and power sections.

Essential Tools
- Multimeter
- DC Power Supply
- Soldering Iron
- Hot Air Gun
- Flux & Paste
- Screwdriver Kit

Main Sections (Motherboard)
- Power Section: DC Jack, MOSFET, Charging IC
- CPU/GPU Section: Processing area
- RAM Section: Memory
- BIOS IC: Firmware
- Display Section: Screen output

Important Voltage Rails
- 19V: Adapter Input
- 5V / 3.3V: Standby
- 1.8V / 1.05V: CPU/GPU
- Note: Missing voltage = fault area

Common Problems & Fixes
1. Dead (No Power): Check adapter, DC jack, MOSFET short.
2. Power ON, No Display: Check RAM, BIOS, GPU.
3. Auto Shutdown: Check heating, fan, CPU.
4. Not Charging: Charging IC, battery line.

Testing Methods
- Continuity: Short check
- Voltage: Rail check
- DC Supply: Short finding (heat method)

BIOS Work
- Tool: Use CH341A Programmer
- Process: Backup -> Flash -> Verify

Multi-Brand Tips
- HP / Dell: BIOS issues
- Lenovo: EC issues
- ASUS / Acer: Power IC faults

Must Learn
- Schematic reading
- Boardview use
- Soldering (SMD)

✨ Key Features

• ✓ High quality & dependable parts
• ✓ Tested and verified performance
• ✓ Reliable electronic solution
• ✓ Professional support available