Laptop Repair Training
[ online offline laptop repair course ]




Laptop Repair Training

• MODULE L3 : LAPTOP MOTHERBOARD CHIP LEVEL TRAINING:

In This Foundation Module, You Will Learn:

  • Block diagram of laptop.
  • Adaptor and battery repairing concepts.
  • Laptop motherboard repairing concepts LCD TFT/ LED CCFL, LCD.

    Before attending this class: Basics of SMD Electronics, assembling and reassembling should be clear.

L 3.1 LAPTOP WORKING DETAIL

CHP 1. INTRODUCTION TO LAPTOP BOARD:
a. Identify Components On Differenent Laptop Motherboard
b. Basic Differences Between Laptop & Desktop
c. Mechanical Difference Power, Reset, Clock
d. A List Of Tools Required For Repairing Laptops

CHP 2. BLOCK DIAGRAM OF BOARD , CHIP IDENTIFY:
a. Types Of Board Platform Intel Amd
b. Block Diagram Of Laptop Board Connection
c. Identify Laptop Boards Connection ,
d. Laptop Chips Detail And Types
e. Identify Ic Pin Detail , Datasheet, Pin Count Process


CHP 3. BASIC WORKING DETAIL OF BOARDS
a. Understanding Hand Shaking Signals , Binnary Systesm, On/Off
b. Different Power To Different Chips, How Voltage Divided
c. Pci Reset, Clock Frequency Bios Software
d. Stage Of Motherboared, Mechanica, Standby, Shut Down, When Required

CHP 4. MOSFETS AND ITS USED, SWITCHING, AND REGULATOR:
a. Mosfets Types, Identify N Channel P Channel, Testing Identify
b. Swithcing Used, Regulator Used,
c. Step Down Process ,Regulator Chip, , Switching Used Of Mosfet,

CHP 5. POWER ON STAGE PRIMARY, SECOND, VRM:
a. Understanding Power On Sequenc Of Board

L3.2 SCHEMATIC DIAGRAM TRACING

CHP 6. LAPTOP SCHEMATIC DIAGRAM, TYPES ODM:
a. Types Of Schematic Diagram With Manufacture
b. Identify Components On Schematic Diagram
c. List Of Schematic Diagram With Models No
d. Understanding Switching Section With Schematic Diagram

CHP 7. POWER SUPPLY CHIPS DETAIL AND UNDERSTAND SIGNALS:
a. Battery Charging & Vin :- Pinout Of Battery Connection, Battery Chip, Important Signals Of Battery Chip, Tracing Signals Of Battery
b. Always Power On:-Pcu, Main, S5 Power, Aux, Etc.
c. Primary Voltage :- 5v, 3v Sus, Main, So,S3, Power
d. Secondary Voltage :- 2.5, 1.8v Sus Main, So, S3, S4 Power
e. Others Power Chip 1.2, 1.4, 1.5v, Sus, Main , So S3, S4 Power
f. Cpu Core Vrm Voltage Regulator Module:- Main Signals Of Vrm Chip, Function Of Vrm Chip, Measure Vrm Input And Output Signals, Vron, Pgood, Etc.

CHP 8. CLOCK GENERATOR, CPU SECTION:
a. Understanding Whole Block Diagram Through Schematic Diagram
b. Clock Generator Chip:- Clock Generator Chip Oscillating Frequency To Different Chip, Main Signals Of Clock Chips
c. Cpu Section (Intel, Amd) What Is the Importance Of Signals In Cpu? Understanding Basic Signals Of Cpu, Cpu Different Power Vcccore, Connection Of Cpu With Other Chips

CHP 9. NORTH BRIDGE AND GRAPHIC CHIP CONNECTION:
a. NORTH BRIDGE (MCH) Memory Control Hub:- Understanding Basic Signals Of North Bridge, Northbridge Different Power Supply, Connection With Different Chips
b. GRAPHICS CHIP:- Why Graphics Chip Is Used, What Problem Is Created By Graphics Chip, Main Types Of Graphics Chips, Nvdia, ATI, Etc.
c. CPU TEMPERATURE CONTROL :- Function Of Temperature Related To CPU And Controls
d. RAM MEMORY POWER SUPPLY:- Important Signals Of RAM, Understanding Basic Signals Of Ram, Ram Different Power Supply, Connection With North Bridge
e. LCD & BACK LIGHT CONTROL: - Functions Associated With LCD Backlight Controls, Inverter, Etc.
f. DISPLAY CONNECTOR
g. DVOC / TVOUTPUT

CHP 10. SOUTH BRIDGE, LAN , AUDIO, HDD, CDD, CARD READER:
a. SOUTH BRIDGE(ICH);- What is the basic function of south bridge, southbridge different power supply, connection with different chips
b. LAN NETWORK CHIP:- Function of network chip, connections of network chip
c. AUDIO SOUND CHIP:- Function of sound audio chip, connections of sound chips
d. BIOS Section :- AWARD, PHONIX, AMIBIOS, COMPAQ, IBM :- Types of BIOS chip , main signals of BIOS chip, connection with i/o & Southbridge signals, CMOS battery power supply to BIOS chip
e. Rtc section
f. Hdd sata pata
g. USB ESATA CONNECTION
h. PCI CARD
i. WIFI MODEM CONNCTION

Chp 11. I/O CONTROLLER KEYBOARD, TOUCHPAD, CAMERA, POWER CONTROLLER:
a. I/O CONTROLLER (Power Chip Control Section) :- Main Signals Of I/O Chip, I/O Chip Contain Power Control Chip In Some Models, Connection And Function Of I/O Chips

b. KEYBOARD, Connection Detail ,
c. TOUCH PAD, Connection Detail Main Signals
d. POWER CONTROLLER CHIP , Power Main Signals Detail
e. CAMERA ,
f. MAGNET SENSOR

CHP 12. PCH (PLATFORM CONTROLLER HUB) NORTH+ SOUTH:
a. Pch Board Function Types
b. Difference In Connection

CHP 13. TRACING BOARD WITH SCHEMATIC SIGNALS:
a. CPU,
b. North , Ram, Display
c. South Audio, Lan, Connector,
d. I/O Keyboard, Touchpad, Etc

CHP 14. CHARGING AND PRIMARY VOLTAGE:
a. Charging , VIN, &Main PCU/ AUX / S5 Voltage Signals (Always On Voltage)
b. Primary Voltage Output Signals (MAIN SUS (5v,3.3v) S0/ S3)

CHP 15. SECONDARY VOLTAGE OUTPUT SIGNALS (SUS, MAIN (2.5V,1.5V) S0/ S3):
a. Charging , VIN, &Main PCU/ AUX / S5 Voltage Signals (Always On Voltage)
b. Primary Voltage Output Signals (MAIN SUS (5v,3.3v) S0/ S3)

CHP 16. VRM SECTION & PCI RESET SIGNALS:

CHP 17. TRACING OF DIFFERENT LAPTOP BOARD POWER STAGES:
a. Understand Power On Different Signals Concept Of HP LAPTOP Motherboard
b. Understand Power On Different Signals concept Of Dell Laptop Motherboard
c. Understand Power On Different Signals Concept Of IBM Laptop Motherboard

L 3.3 FAULT FINDING STEPS

CHP 18. HOW TO USE CROBASIC CONCEPTS, TESTING WITH CRO& MULTIMETER(STEPWISE):
a. Understanding CRO , Used,
b. Testing , Frequency , Vrm Power, Signals

CHP 19. TESTING TOOLS , DEBUG CARD, SLOT TESTER:
a. DEBUG CARD, Error Codes, Identify Different Problems
b. Slot Tester :- Cpu, Ram

CHP 20. BIOS UPDATE, RESET:
a. DEBUG CARD, Error Codes, Identify Different Problems
b. Slot Tester :- Cpu, Ram

CHP 21. WASHING, CLEANING, DRYING DRY SOLDER PROBLEM SOLUTION OF MOTHERBOARD:
a. Washing & Drying Steps Of Board
b. Dry Solder Problems To Solve

CHP 22. TESTING LAPTOP POWER CONSUMPTION THRU POWER SUPPLY UNIT:

CHP 23. FLOW CHARTS FOR FAULT FINDING STEPS:
P1 Dead laptop tracing step,
P2 Adapter power off when connect to laptop
P3 laptop charging led not on
P4 laptop not power on by pressing on off switch
P5 laptop power led on and closed in 2/3 sec
P6 laptop power on and off in 30 seconds
P7 laptop power led on but no display
P8 laptop not power on by adapter but power on by battery
P9 laptop not power on by battery , but on by adapter
P10 rtc, cmos battery power section
P11 laptop some time on , some time not on
P12 laptop protection circuit
P13 laptop VIN/ PWRSRC not generate
P14 always power on section troubleshooting
P15 Charging section troubleshooting
P16 Primary section troubleshooting
P17 Secondary section troubleshooting
P18 Laptop VRM section troubleshooting
P19 laptop other power on troubleshoot
P20 Laptop over heated

CHP 24. FAULT FINDING LAPTOP POWER SECTION:
C1 Laptop CPU troubleshooting
C2 Laptop clock troubleshooting
C3 Laptop north bridge/ gmch troubleshooting
C4 Laptop RAM troubleshooting
C5 Laptop LCD troubleshooting
C6 Laptop VGA connection troubleshooting
C7 Laptop HDMI troubleshooting
C8 Laptop south bridge troubleshooting
C9 Laptop ieee 1394 troubleshooting
C10 Laptop audio troubleshooting
C11 Laptop Lan troubleshooting
C12 Laptop sata/ pata troubleshooting
C13 Laptop odd/ cd DVD connection troubleshooting
C14 Laptop USB troubleshooting
C15 Laptop Esata troubleshooting
C16 Laptop PCMCIA troubleshooting
C17 Laptop I/O chip troubleshooting
C18 Laptop touchpad troubleshooting
C19 Laptop keyboard troubleshooting
C20 Laptop bios troubleshooting
C21 Laptop bios password troubleshooting
C22 Laptop debug card post code errors
C23 Laptop camera not work
C24 Laptop modem troubleshooting
C25 Laptop card reader troubleshooting
C26 laptop wi fi troubleshooting

CHP 25. FAULT FINDING LAPTOP CONNECTION:

CHP 26. DISCUSSION STUDENT PROBLEMS AND SOLUTION:

L 3.4 BGA CHIP REPLACEMENT AND REBOLLING

CHP 27. REMOVING AND INSERTING DIFFERENT CHIPS PRACTICE (VIDEO & STEP):
a. Instrument Demo And How To Used
b. Removing Process Of Chip

Chp 28. USE OF BGA MACHINE, TEMPERATURE SETTING:

Chp 29. BGA REBOLL , REWORK PRACTICE:

Chp 30. DEMO FOR OTHER PRODUCT