Module 2.3 (Online) Laptop Motherboard Chip Level Training

Module 2.3 (Online) Laptop Motherboard Chip Level Training

Laptop motherboard Chip Level Repairing training

*Block diagram of laptop motherboard

Chp 1) Block diagrams of motherboards and basic concepts related to motherboards

Chp 2) Basic working details of motherboards

Chp 3) A list of tools required for repairing laptops

*Basic difference between laptop motherboard and desktop motherboard

Chp 4) Basic differences between laptop and desktop motherboards, components difference, etc..

Chp 5) Power , clock , stage

*Power stage of laptop motherboard

Chp 6) Primary, secondary, RAM, VRM, etc. PCU  MAIN SUS POWER

Chp 7) How a motherboard starts basic concepts

Chp 8) Understand Power on Stages of laptop motherboard (Compaq v2000)

(3VPCU, 5VPCU , +5V, +3V 5VSUS, 3V SUS, NBSWON#, DNBSWON# SUSC# SUSB#, SUSON, MAINON, VRON S5_ON, HWPG, POWERGOOD, VCCP, VCORE SMDDR_VTERM, PWROK, RSMRST, PCIRST,CPUINIT,CPUPG, IMVPOK, CLK_EN# CPURST)

*Different section of laptop motherboard

Chp 9) MOSFETS USED ( 4404, 4435, 4800, 4814, 4825, 4836, 4856, 4914, 5130, 6676, 6690, 6900  )

Chp10)  CPU section

Chp 11) Northbridge

Chp 12) RAM

Chp 13) Battery charging

Chp 14) BIOS section

Chp 15) Reset signals, Clock section

Chp 16) I/O controller (power chip control section)

Chp 17) Vin voltage signals

Chp 18) On/off switch

Chp 19) LCD connection

Chp 20) Inverter connection

Chp 21) Main PCU voltage signals

Chp 22) Primary voltage output MAIN SUS

Chp 23) Secondary voltage output SUS MAIN

Chp 24) Discharge section

Chp 25) Different power stage

s0 ,s1 ,s2 ,s3 ,s4 ,s5

*Tracing different connectors and socket  with pinouts detail. 

Chp 26) Mini PCI Slot, LAN IEEE 1394,  Audio Connection, Modem Acc, RTL,  I/O Controller KBC, CD Rom Connection,  HDD Connection, VGA Connection, Key Board Connection, Touch Pad Connection, Power Board DVD Panel Top

Chp 27) Different chip used in different section of different motherboard list

(Clock generator IC,Southbridge,Northbridge,IO IC,Graphic chips,etc).

*Motherboard main signals and power detail

Chp 28) Power stages of other laptop motherboards main signals

(Compaq

AD-OFF  DCBATOUT TO_SYS. ACAVIN PWR_S5_EN  5V-PWR 3DE-PWR  PWR-S5-EN 5V-PWR 3D3-PWR  +3 VALW, +5 VALW  +3 VALW, +5 VALW +3 VALW  RSMRST-SB #3 \; z7 o# m8 [/ `+ I& j” Y! ^2 XBT-TH #   PWR_BTN  PWBTN-SB PM-SLP-S3 # PM_SLP-S4 ALL-PWRGD VR ON  PM-PWPOK CPU PG  PLT-RST )

Chp 29) Understand power on concept of Dell laptop motherboard

(+ RTC_PWR5V & + RTC_PWR3_3V, + RTCSRC,  (PWR_SRC) DCIN +, + DC_IN, SDC_IN +, ACAV_IN  (+5 VALW & +3 VALW) LIVE_ON_BATT . power good VCC1_PWROK +5 VSUS & +3 VSUS   +2 _5VSUS & +1 _5VSUS  PWRSW_SIO # SUS_ON  +3 VSRC SUSPWROK_5V RUN_ON +5 VRUN, +3 VRUN, +1 _8VRUN, +1 _5V RUN, M7_MEM, M7_CORE, M7_1.8V SMDDR_VTERM 1.25V RUNPWROK CPU VTT VCC1_2_MCH RESET_OUT # VCORE_PWRGOOD, 1715PWROK,   IMVP_PWRGD  CPUPWRGD SLP_S1 # IMVP_PWRGD VTT_PWRGD # DELAY_IMVP_PWRGD )

Chp 30) Understand power concept of IBM

(VREGIN16, VINT16 VCC3SW  , VCC5M , VCC3M , VCC1R2M VCC1R8M, MPWRGD,  VCC3B, VCCCPUCORE for CPU,  VBAT, DC –IN,  VCC5B,  VCC3A,   VCC3B, VCC3P, VCC1R8A,  VCC1R8B,  VCC1R2A, VCC1R2B,   VCC2R5A,  VCCVIDEOCORE,  VCCCPUIO,  VCCCPUCORE)

*Testing

Chp 31) Testing with a multimeter different signals

Chp 32) How to use CRO basic concepts , Testing with CRO (stepwise)

Chp33) Testing outputs and inputs of Mosfets

Chp 33) Testing clock, Testing reset signals using CRO

*Cleaning motherboard solution steps

Chp 34) Washing a motherboard (video),

Cleaning a motherboard after washing (video)

Drying the  motherboard using hair drier or blower (video)

Chp 35) Dry solder problem solution steps

How to use a baking oven to dry motherboard(demo)

Heating using a hair drier

Heating basics components which have dry solder issues using a micro iron or blower Basic notes and videos which explain these method

Chp 36) Removing and inserting different chips practice (video & step)

Replacing different ICs, using soldering irons etc..

*BGA rework removing and reballing of BGA chip of motherboard

Chp 37) Using infrared BGA machine

Training Using BGA Soldering Station

Removing BGA Chips and Reballing It Using Reball Stencil

Chp 38) ICs  reballing, BGA ball arrangement, practice.

Two methods

1st  by applying balls with help of BGA station

2nd applying liquid paste and heat with BGA blower

Chp 39) Introduction to different BGA machines

Why is reballing required

1st method ( inserting BGA balls using stencils)

2nd method (using a direct paste application)

3rd method (inserting balls)

BGA reballing process ( videos and notes)

Chp 40) Removing bios password process notes and device used

Dell sorting process

IBM read chip process

Hash code

Different devices used to remove passwords

Chp 41) Different slot tester detail RAM, CPU, HDD etc

RAM slot tester

CPU slot tester

WIFI slot tester

HDD slot tester

Mini PCI debug card

Chp 42) Testing and fault finding using debug card mini PCI 3in1 5 in1

Mini PCI debug card

Debug cards code error list of different bios

Chp 43) Bios update concept common fault and solution detail

Post code error of different debug card and bios program

Update Bios Method USB – EXE

Bios working Details