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