8/13/2019 Laptop Chip Level Broucher

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BASIC ELECTRONICS:Module 1: Introduction toElectronics:

Voltage , Current ,

Resistance & Power Differences between AC &

DC. Using of Multi meter. Using of Soldering Iron. Using of SMD Re

workstation.Module 2: ElectronicComponents:

Resistors Capacitors Diodes Coils & Inductors

Transistors & FET ICs Checking of components Replacing of components

Module 3: Digital Electronics: Differences between

Analog & DigitalElectronics.

Different type of digitalelectronic devices.

LAPTOP CHIP LEVEL:Module 1: Introduction toLaptop:

Differences betweenLaptop & Desktop.

Different type of Ports ofLaptop

Dismantling & AssemblingofLaptop

Module 2: Laptop MotherboardWorking:

Block diagram of LaptopMotherboard.

Different sections in LaptopMotherboard.

Functions of each sectionand chips.

Startup sequence of Laptopmotherboard (Always ,Suspend and Run Powers)

Module 3: Laptop Schematics

Identifying Motherboardmodel number

Tracing Laptop motherboard

Identifying different controlchips on motherboard

o North Bridgeo South Bridgeo I/O Controllero Charger ICo Power Supply IC

and FETso LAN ICo Audio ICo BIOS Chip

Module 4: Testing of LaptopMotherboard:

Checking of Voltages (S5,S3and S0) in each Stage

Checking of Different signalsin each stage

Checking Short circuit inLaptop Motherboard

Module 5: Troubleshooting ofLaptop

Adapter Problems Battery charging problems Battery backup problems No Display / Dead

Problems. Dull Display Problem. Restarting problems Hanging problems Over heating problems. LCD white screen problems Keyboard Problems Touch pad problems HDD Problems

DVD Drive problems Removing BIOS Passwords

LCD AND LED

Working block diagram ofLCD monitor

Power supply, inverter,MLC checking with onlinetesting

LVDS related problems Trouble shooting problems

o No displayo Dull displayo White displayo Colours problemso Junk display

Checking with live LCD monitor

TROUBLE SHOOTING DESKTOPSMPS PROBLEMS ALSO

DESKTOP MOTHER BOARD

Working Functionality OfMother Board

Block diagram of motherboard

Connectors and portschecking

SMPS Voltage checking onmother board

Processor core voltageschecking

Power ICS, SMD ICchecking with online

I/O section related problems BIOS chip related

problems(Flashing)

NO POWER, NO DISPLAYHANGING PROBLEMSCHECKING IN LIVE MOTHERBOARDS

PRINTERS AND SCANERS

DOT MATRIX PRINTERS

Asembling and de-asembling

Section wise checking

Paper feedingproblem(sensors)

Head related problems

LASER/INK JET PRINTERS

Asembling and de-asembling

Paper feeding tonnercatridge refelling