BASIC LAPTOP PROBLEM FINDINGS
HINGES REPLACE & REPAIR AND FEBRICATION WORK
REPLACE IC USING SMD WORKSTATION
REPLACE SUPER IO
REPAIRING LCD DISPLAY AND INVOTER CIRCUITS OF LAPTOPS.
BGA REWORK STATION
NO DISPLAY SOLUTION
RAM SLOW TESTER AND
Basic analog and digital electronics.
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Unable to boot.
Laptop Assembling and dissembling
Motherboard working phenomena, Block diagram, & schematic diagram.
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Linear Regulator & PWM power supply
Using & testing of electronic components
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Desktop motherboard Power sequence
Testing of Digital IC'S
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Laptop power steam & VRM, suspended voltage & always voltages
Diflaptop service trainingferences Between AC & DC Current and its applications.
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Voltages on different chips
Switching mode power supply Technology and its usage.
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Laptop different section working principal
C to DC Conversion of power and its application.
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Block diagram of Laptop & signal flow
Pulse width modulation (PWM) Technology and its application in the computer M/B's.
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lock frq. & voltage flow on motherboard
ower good signal of the power supply and its importance.
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Battery charging section
Reset Technology and its importance in the computer M/B.
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LCD & LED section
BIOS IC, its pin details, firm ware of the bios and study of its characteristics.
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Inverter Section and CCFL
Importance of the clock generator IC and study of its O/P clock signals.
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Real time Clock (R T C) signal and its application in the M/B
How to Stop Laptop Overheating
Function of MCH, ICH, SIO, Clock, Bios chips
Power on self test (post) of the M/B and its importance, reading its codes and analysis the problem according to it.
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Second generation power seq. & PCH function
Fault finding, tracing, diagnosing and isolating of the problems according to their behavior.
Basic tips, precautions, Steps, Short cuts to approach different problems.
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Function of audio section, network section, SATA, USB
Tracing of M/B's of different makes and understanding the common and difference between the M/B's.
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Function of Touch pad & keyboard
Understanding of CPU core voltage generation circuits.
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Reset signal seq
Difference & Similarity between Desktop and Laptop M/B's.
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Laptop M/B Diagnosing, isolating problem between power and other sections, diagnosing the problem in systematic way and short cuts.
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ICs detail and function
Precautions to be taken while approaching the critical problems like hanging, Battery not charging, Drives not detecting, K/B not detecting, AC Adapter not detecting and all other Semi working problems of the Laptops.
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Different connectors and sockets
Laptop M/B Coolant Circuit Technology and its problems and solution.
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Fault finding procedure of laptop
Laptop Dim display problem isolating the problem between screen, inverter board and the main M/B.
Use of Debug card post error code
Laptop internal and external display importance, difference and its fault finding.
Common problem of different motherboards
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Fault finding using digital multi-meter & socket tester
Laptop K/B problem, isolating the problem between K/B and M/B and finding the solution for it.
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Fault finding using Oscilloscope
Laptop USB Device Not working problem, isolating the problem between power section and data section and its solution.
motherboard chip level troubleshooting
Different password removing methods and steps.(Dell, IBM)
LAPTOP drives (HDD/CDD) not detecting problems and drives pin details in the M/B's, checking points and solution.
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Reading schematics diagram & DATA sheets of different ICs
Laptop network port problem, cause, IC details and solution.
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HINGES & body fabrication etc
Laptop display screen working technology, isolating the problem between screens, cable, M/B. further isolating the problem between power and logic section in the M/B.
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Practical chip level faults finding
Laptop M/B DC to DC Converter Voltage Generation Problems, main Power Supply short Problems, Diagnosis, isolation and solution.
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Software related issue solve by Hiren boot and mini XP
Understanding of stand by voltages and its requirement in the laptop M/B.
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BIOS up gradation using different methods.
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Importance of the password in laptop, its storage and removal steps.
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Laptop adapter working technology and its fault finding.
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Laptop Battery Refurbish technology.
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Usage of oscilloscope and its importance in fault finding.
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Shortcuts in repair.
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