🧠 What You Learn in This Course

1. Basic Electronics

• Voltage, current, resistance
• Multimeter use
• Ohm’s law

2. Components Knowledge

• Resistors, capacitors
• ICs (Integrated Circuits)
• MOSFET, diodes

3. Laptop Motherboard Repair

• Power section troubleshooting
• Short circuit detection
• BIOS repairing
• No display / dead laptop repair

4. Desktop Motherboard Repair

• SMPS testing
• CPU & RAM slot issues
• Motherboard circuit tracking

5. Advanced Tools Training

• Soldering & desoldering
• BGA machine (for IC replacement)
• Hot air gun
• Microscope work 

🧰 1. DSO Machine (Oscilloscope)

🔍 What is it?

DSO = Digital Storage Oscilloscope

👉 It is used to see electrical signals (waves) inside circuits.

⚙️ Use in Mobile Repairing

• Check clock signal in CPU
• Analyze data lines (RX/TX)
• Detect faulty IC signals
• Check charging waveform

🧠 Example

👉 Phone not turning ON

• Multimeter shows voltage OK
• But no signal → check with oscilloscope
• ➡️ You find signal missing → faulty IC

🎯 Simple Meaning

👉 Multimeter = checks voltage

👉 Oscilloscope = checks signal behavior (live waveform)

🔋 2. DC Power Supply Machine

🔍 What is it?

A machine that gives controlled voltage & current to a phone motherboard

⚙️ Use

• Turn ON phone without battery
• Detect short circuit
• Check power consumption

🧠 Example

👉 Dead phone:

• Connect DC supply
• If current jumps → short circuit
• If no current → power IC issue

🎯 Key Use

👉 BEST tool for fault finding in dead phones

🔥 3. SMD Machine (Hot Air Gun / Rework Station)

🔍 What is it?

Machine that gives hot air to remove & fix small components (SMD parts)

⚙️ Use

• Remove ICs
• Remove resistors/capacitors
• Replace charging IC
• Reballing work

🧠 Example

👉 Charging IC damaged

➡️ Use hot air → remove IC → fix new one

⚠️ Important

• Temperature control is critical
• Too much heat = motherboard damage 😬

🔧 4. Micro Soldering Iron

🔍 What is it?

A very fine-tip soldering iron for precision work

⚙️ Use

• Jumper wire connection
• Small component soldering
• Track repair
• IC pin fixing

🧠 Example

👉 Track broken on motherboard

➡️ Use micro iron + jumper wire → repair connection