Description
DOV-2: BASIC ELECTRONIC & HARD DISK PCB REPAIRING
1 BASIC ELECTRONICS (basic in short)
- Basic electronics (types of circuit, types of current, multimeter used, testing)
- Electronics components working idea, (resister, capacitor, diode, transistor, mosfet, switching section etc)
- Resistor (working idea, types, measure, low value, high value, identify in hdd PCB testing)
- Ceramic Capacitor (working idea, types, measure, identify in hdd PCB testing)
- Fuse/ coil (working idea, types, measure, identify in hdd PCB testing)
- Diode, TVS diode (working idea, types, measure, identify in hdd PCB testing)
- Transistor/ mosfet working idea, types, measure, identify in hdd PCB testing)
- PCB repair tools demo (testing identify, soldering and De-soldering components)
- Common problem in hard disk due to printed circuit board fault
2. Hdd Pcb Repairing Concept, Block Diagram , Fault Finding
- Introduction to HARD DISK PCB block diagram section of hard disk, Power, Connection
- Different power required in PCB
- Power & protection section, (TVS diode, fuse, coil, 0ohms transistor, Mosfet, other smd component working and power detail in hard disk)
- DC to DC converter (switching section, linear section, 1.5, 2.5, 3.3v supply)
- MCU section, Data section, (chip working concept power main signals)
- Buffer Ram, flash ROM section (working concept types and main signals)
- VCM Motor controller & read channel chip (working concept and main signals)
- Head, Voice coil, preamp section head
- Live PCB tracing (different volt of PCB, fault finding of hard disk PCB Online offline)
