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2009年7月26日星期日

how to test laptop lcd screen

when you buy a new laptop or buy a replacement laptop LCD screen panel,you must want choose no dead pixel (burned pixel),no light pixe Lcd screen panle.who like trouble?but if you have not specialized LCD test Software,you would read our article.It does not matter,I tell a good way to you,
Operating system has been installedClick the “Start” → “Run”,input”command”(Windows 9X/Me operating system) or “cmd” (Windows NT/2000/XP operating systems),at this time,the “Command Prompt” window be open.input”debug “and click”enter”key.the screen will show “?”,the laptop run debug application.pushing”Alt+Enter”,Maximized windows fill the entire screen for test laptop Lcd screen.
Operating system has not been installedReboot your laptop ,enter DOS,input “debug”and click”enter”key.the screen will show “?”,the laptop run debug application.
input command“F B800:00 F9F 20 70”Full-screen white，* P1 I2 o* ^0 j& ^0 T. V$ U& ~’ C“F B800:00 F9F 20 40”Full-screen red，! h. U0 V4 A” y: ” `” b6 _“F B800:00 F9F 20 20”Full-screen green，! `3 b4 M- ]1 p6 N. G“F B800:00 F9F 20 10”Full-screen blue.
add gridding
“F B800:00 F9F C5 07 C4 07”Full-screen white gridding， {8 c/ 8 C9 k! t” g“F B800:00 F9F C5 04 C4 04”Full-screen red gridding，, l: m& J( d’ Z0 G Q! d“F B800:00 F9F C5 02 C4 02”Full-screen green gridding，/ I0 N/ V- k- Q/ x ?+ M“F B800:00 F9F C5 01 C4 01”Full-screen blue gridding.the way is very convenient. we do not need install test software,but also we achieve the purpose of testing.. t: y, h9 W, X. Q2 T$ [; G$ u/ ]+ L9 `4 {7 J6 g( ?$ ~
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Tags: laptop, LCD, screen, test

The HP NC4400 Laptop Drive for Window XP

The HP NC4400 Laptop Drive for Window XPthis Drive is not a official Drive.An HP engineer personal send to me.he summing up this drive for test.this Drive just support HP Original Window XP SP2 operating system,if you use other operating system,pls don’t download it.please must use Single-Threaded download,if this Drive can be load,please manually load in the Device Manager.please according to priority load the Drive.hp NC4400 chipset Driveftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32555.exe
hp NC4400 sound card—uaa—ftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32646.exe–sound card Driveftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32593.exe
hp NC4400 Video Card Driveftp://ftp.hp.com/pub/softpaq/sp33001-33500/sp33188.exe
hp NC4400 MODEM Driveftp://ftp.hp.com/pub/softpaq/sp33501-34000/sp33914.exe
hp NC4400 shortcut key Driveftp://ftp.hp.com/pub/softpaq/sp38001-38500/sp38171.exe
hp NC4400 TouchPad Drive–ftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34473.exe
hp NC4400 wireless network card Drive – there are 2 version wireless network card Drive,if your laptop have a Centrino CPU,please download Intel wireless network card Drivebroadcom wireless network card Driveftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34152.exeintel wireless network card Driveftp://ftp.hp.com/pub/softpaq/sp34001-34500/sp34489.exe
hp NC4400 network card Driveftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32632.exe
hp NC4400 card reader Driveftp://ftp.hp.com/pub/softpaq/sp33001-33500/sp33439.exe
hp NC4400 Mobile data protection program Driveftp://ftp.hp.com/pub/softpaq/sp31501-32000/sp31992.exe
hp NC4400 Bluetooth configuration program Driveftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32598.exe
hp NC4400 fingerprint identification management program Drive–if you wand to use fingerprint identification,please first load this Driveftp://ftp.compaq.com/pub/softpaq/sp32501-33000/sp32946.exe
hp NC4400 fingerprint identification Driveftp://ftp.compaq.com/pub/softpaq/sp32501-33000/sp32654.exe
hp NC4400 AuthenTec Fingerprint Driver –if you still cann’t use fingerprint identification,you try this Drive.ftp://ftp.hp.com/pub/softpaq/sp32501-33000/sp32609.exe
An Important Statement,I am not be responsible if your laptop load this drive and it break down.humm,if you cann’t find the drive you want as me,you can try contact HP engineer.
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Tags: Drive, HP, hp NC4400, laptop, NC4400

MACFlash—Prefessional Modify network card mac address tool

MACFlash is a Prefessional Modify network card mac address tool by professional maintenance persons,and thereforeplease Undertake no more than you can perform.I have successfully modify intel OEM thinkpad 82566 series network card mac address.now, I explain how to use this Modify network card mac address tool.unzip this attach into your Bootable DOS USB Flash Drives.then use this USB Flash Drives boot your laptop,switch to correspond Drive letter.cd \MAC1 enter mac1 directory.input:EEUPDATE.EXE /NIC=1 /MAC=############## is you want to modify network card mac address.MACFlash (0)
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Tags: address, laptop, Mac, Modify, network card

Dream laptop IBM ThinkPad W700

A colleague of my bought a new laptop , IBM ThinkPad W700.
I think it is a laptop not only in my dream. Let us share it now, what special of it?
Appearance looks nothing special, the same as other IBM laptop.
Open it, a 17′ screen and a writing panel you will see.
Side of the screen will give you surprises!
You will not feel its presence, when the side of screen closed.
We are look at the location of writing stylus.
The following are the parameters of its
Main Display: 17 inch, 1920 × 1200Vice-display: 10.75-inch, 768 × 1200 (5.5 × 9.25 inch)Processor: Core 2 Extreme QX9300 2.53GHzMemory: 4GBHard Disk: 460GBCard: Quadro FX 3700MProfessional digital drawing board: 5-inch Wacom DigitizerVideo Output Interface: VGA, DVI, DisplayPortOther interfaces and adapters: all-in-one card reader, Express64, FireWire 1394, USB 2.0 × 5, ModemOperating System: Windows Vista 64-bit
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Tags: IBM laptop, laptop, screen, w700

Laptop Troubleshooting -Laptop No Power Solution(4)

Laptop Troubleshooting -Laptop No Power Solution(4)if you reach here,but it is No power problem Still not resolved,please check Loose or damaged parts?Reseat loose components and laptop motherboard and replacedamaged items.if the laptop still don’t work,Replace the following items (if applicable). Check computer operation after each replacement:1. Internal DC-DC converter*2. Internal AC adapter3. Processor board*4. System board(laptop motherboard)**NOTE: Replace these items as a set to prevent shorting out among components.

laptop No Power 4
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Tags: laptop, laptop motherboard, No Power

IBM ThinkPad T43 laptop motherboard fit into T40 case?

IBM ThinkPad T43 laptop motherboard fit into T40 case?Q：I have a dead T40，so I think that is a good idear it seems like a T43 swop,because it uses the i915 chipset so I can run 533FSB + DDR2 ram which is cheaper and uses less voltage,but only question is,will the T43 laptop motherboard fit into IBM ThinkPad T40 case?and the T40 laptop motherboard Will the 14″ LCD connector be compatible?Is there any difference in size between the 15″ lcd mobo and the 14″ lcd mobo?
Answer:14″ and 15″ laptop motherboard are of the same size.
but you must change the PCMCIA frame for the T43 laptop motherboard to fit in. You may also have to change the HD frame depending on whether that T43 laptop motherboardboard supports a FPR.
Also, if you have a 14″ SXGA+ LCD on that T40 (assuming from the GPU that you’ve mentioned), an Intel-based T43 laptop motherboard will NOT work with it.
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Find a free download Space?

Hi,my friend?Who knows where website Provide a free download Space?We need a free download space because we have lots of laptop repair notes or laptop motherboard circuit diagram they need upload a free space convenient reader download.if you know this space please tell me.thanks
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Tags: download Space, laptop, laptop motherboard

Repair and Remove IBM Thinkpad X22 lid hooks and hinges

So far,we have publish some guide,How to replace laptop keyboard,how to replace laptop LCD,How to replace laptop.How to replace laptop fan,how to replace laptop cover.Now,I talk an case,Repair and Remove IBM Thinkpad X22 lid hooks and hinges.our Customer have a IBM Thinkpad X22 laptop,but this laptop damaged one of the lid hooks.It is considered the lid hooks and the hinges as the most likely potential troubles of X2-series. Therefore I take some photos to share the Repair process.Attention,this guide should only be used to IBM Thinkpad X22 X23 X24 laptop.because this hooks are different between X20 with X21.ok,Enough of this talk, let’s get right down to business!
Repair and Remove the lid hook
You will need the following tools*screwdriver*knife

First, remove the screws cover on the front bezel with the knife and Remove all screws
Remove the cover on edges of the display bezel.
this picture show Remove this screws on edges of the display bezel.Tips: No need to remove the upper screws which fix the hooks now.

Remove the three screws from the front bezel.

Flex the insides edges of the display bezel with a knife until the bezel disengages from the display enclosure.

Slide the whole bezel until the bezel disengages from the display enclosure.
Now,We remove the two screws on the hinges.Now it is possible to separate the LCD panel from laptop
disengaged

Be Carefully Release the LCD cable.
In order to avoid scratching the LCD panel, you can put something upon the keyboard.

The first-phase preparations have been finished
Now remove the screws which fix the hooks.

Finally, install the new hook, then assemble the whole laptop.

Repair and Remove the Hinges
Remove the three screws which fix the laptop keyboard.
Push the keyboard from the palmrest side to the LCD side, then it is easy to remove.
Release the zero insertion force (ZIF) connector to which the Laptop keyboard cable is attached and disconnect the keyboard cable Release the ZIF connector to which the pointing stick cable is attached and disconnect the pointing stick cable .Remove the keyboard.
Insert a thin flat-bladed tool under the hinge cover of the switch cover and lift up until the switch cover disengages from the Laptop,Remove the switch cover.

Remove the four screws fixing hinges.Next action is pretty simple,removed this hinges
Install the new hinges, then assemble it.
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Tags: hinges, hooks, IBM ThinkPad, laptop, Laptop LCD screen, LCD, Remove

HOW TO CHOOSE LAPTOP BATTERY- realize from Parameter to Cell.

HOW TO CHOOSE LAPTOP BATTERY- realize from Parameter to Cell.
What is the biggest difference between laptop pc and desktop pc,I think it is “mobile ”.
This“ mobile ”computer depend on wireless network and laptop battery.
Therefore it is very important that how to choose laptop battery.
As a consumer, the simplest and directviewing method of choose laptop battery is see the quantity of cell.Mainstream laptops standard on 8 cell , 6 cell or 4cell lithium ion battery.the 4 cell battery usual be used in slimmest laptop.
The more the quantity of the cell, the more long it is Battery life.

laptop battery 6 cell
when choose laptop battery, some person pay more attention to the “mAh”. mAh is a unit of cell capacity. We can see the sign on Laptop battery says “6 cell 4400mAh” or “4 cell 2200mAh”, making it easy to believe that the Battery life depending on the cell capacity, but this is not the case.Now we need realize another parameter : watt hour.(Wh)relation between Wh with mAh.Wh÷V×1000=mAh

10.8V 5200MAH 56WH 6CELL battery
The important parameters of bettery are Voltage, watt-hour, mAh.
for example: the battery life is diffenrent when an 4800mAh lithium-ion batteries work at different voltage(10.8V, 11.1V)This difference stem from the change of watt hour.4800÷1000×10.8=51.84（Wh）
4800÷1000×11.1=53.28（Wh）4800mAh lithium-ion battery work at 11.1V have more advantages than work at 10.8v.
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Tags: how to, laptop, laptop battery, laptop parts

laptop battery terms

Self-dischargeself-dicharge is a phenomenon in batteries in which internal chemical reactions reduce the stored charge of the battery without any connection between the electrodes. Self-discharge decreases the shelf-life of batteries and causes them to have less charge than expected when actually put to use.
Depth Of Discharge (DOD)Depth Of Discharge is an alternate method to indicate a battery’s State of charge (SOC). The DOD is the inverse of SOC: as one increases, the other decreases. While the SOC units are percent points (0% = empty; 100% = full), the units for DOD can be Ah (e.g.: 0 = full, 50 Ah = empty) or percent points (100% = empty; 0% = full). As a battery may actually have higher capacity that its nominal rating, it is possible for the DOD value to exceed the full value (e.g.: 52 Ah or 110%), something that is not possible when using SOC.
Memory effectalso known as lazy battery effect or battery memory, is an effect observed in nickel cadmium rechargeable batteries that causes them to hold less charge. It describes one very specific situation in which certain NiCd batteries gradually lose their maximum energy capacity if they are repeatedly recharged after being only partially discharged. The battery appears to “remember” the smaller capacity.
Trickle chargingTrickle charging also call float charging, means charging a battery at a similar rate as to its self-discharging, thus maintaining a full capacity battery. Most rechargeable batteries, particularly nickel-cadmium batteries or nickel metal hydride batteries, have a moderate rate of self-discharge, meaning they gradually lose their charge even if they are not used in a device. Care must be taken, however, that if a battery regulator is not employed, the charge rate is not greater than the level of self-discharge, or overcharging and possible damage or leakage may occur.
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Tags: laptop, laptop battery

How to search and replace your Laptop Motherboard

How to search and replace your Laptop Motherboard?when your laptop motherboard has suffered a irreparable damage,your laptop will not boot up or some functions of your laptop stop working intermittently.you just only geting a new laptop motherboard and disassemble your laptop and manually replace the laptop motherboard with a new one.today,laptoppartwholesale.com tell you How to search and replace your Laptop Motherboard?at first,what is laptop motherboardThe Laptop motherboard is a large,Printed circuit board that is used to connect all of the different components on a laptop.
You will need the following tools to complete the removal and replacement laptop motherboard■Magnetic screwdriver■Phillips P0 and P1 screwdrivers■Torx8 screwdriver■Flat-bladed screwdriver
Setp 1:
Search and Buy a corresponding replacement laptop motherboard
Navigate to the support website of your laptop or check the user’s manual for got the part No of motherboard your laptop uses.some model’ parts number is locatedon the bottom of your laptop.you will go to ebay or www.laptoppartwholesale.com and buy a corresponding replacement laptop motherboard.Power off the your laptop and close the lid of screen .overturn the laptop computer so that the bottom is facing up toward you. Hold down the battery’s latch and then remove the battery.
Setp2:
Remove all of the screws from the bottom of the case. swing it up and to left the two plastic covers near the middle of the case that protect the hard drive and RAM modules. Pull off the hard drive directly out of the case and set it aside. Grab both ends of the exposed RAM module and remove it from the case . Repeat the process with the second RAM module if your particular model of laptop has a second memory module.
Setp 3:dismantle the disc drive on the left side of the laptop directly out of the case and set it aside. Turn the computer back over and open up the screen’s lid. Push a flat object, such as a screwdriver head, underneath the large plastic piece above the laptop keyboard that houses the indicator lights and power button. Pop the plastic piece off the laptop. Disconnect the cable connecting the plastic piece to the laptop motherboard.
Setp 4lift down the laptop keyboard from the case and then disconnect the cable connecting it to laptop motherboard. Remove the screws holding the LCD hinges to the case. Slide the card from its port on the Laptop motherboard and set it aside.lift down the laptop hinges and set them aside. Locate the network card at the left end of the laptop motherboard.
Step 5Remove the screws holding the graphics card to the laptop motherboard if your model of laptop has an extra graphics adapter. Slide the card off the laptop motherboard and set it aside. Remove the screws holding the laptop fan and heat sink unit to the laptop’s processor. Remove the them and then pull the processor off its motherboard socket. Set both pieces aside.
Step 6Pull out the screws along the edges of the motherboard. Lift the motherboard straight up and remove it completely from the laptop’s case. Line up the ports on the sides of the new laptop motherboard with the corresponding holes on the case. Push the motherboard down into the case and reconnect the screws.
Step 7Reassemble all of the internal parts you removed to get to the laptop. Set the plastic piece and keyboard back onto the case. Replace the battery and then reconnect the hard drive, disc drive, RAM modules and plastic covers. Replace all of the screws. Power on the HP laptop and wait for the operating system to load completely to make sure the motherboard is working.
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Tags: lapart number, laptop, Laptop Fan, Laptop Hinges, Laptop LCD screen, LCD, replacement laptop motherboard, screen

IBM ThinkPad T40 Power control circuit diagram

IBM ThinkPad T40 Power control circuitIBM ThinkPad T40 is a class of IBM laptop.today,i use this circuit diagram because a client ‘T40 power control is wrong.Now,I show the IBM ThinkPad T40 Power control circuit diagram for our reader and hope to some person who meet same problem.,this circuit diagram be provide by jack my colleagues who is IBM fan.i also like IBM.

T40 Power control circuit
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Tags: circuit diagram, IBM ThinkPad, laptop, laptop parts knowledge

IBM ThinkPad T60 Laptop motherboard circuit diagram Download

IBM ThinkPad T60 Laptop motherboard circuit diagram DownloadToday,we share some laptop motherboard circuit diagram for reader.these circuid diagramis helpful for DIYer and repair.but I must remind you that if you are not professional person,please don’t open your laptop and repair laptop motherboard.this time,we took a set of IBM ThinkPad T60 Laptop motherboard circuit diagram.as a matter of fact, IBM ThinkPad T60 be manufacture in wistron who is is among the world’s largest ODM and EMS (Electronic Manufacturing Services)companies,Great Wall Computer Group Corporation finalize assembly.…..sorry,I am wandering from the point .Next time,I tell you a special topic about the relationship between laptop company with OEM factory.ok.click heredownload address 1:IBM ThinkPad T60 Laptop motherboard circuit diagram Download (27) or download address 2:IBM ThinkPad T60 Laptop motherboard circuit diagram.pdf
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Tags: circuit diagram, download, IBM ThinkPad, laptop, laptop motherboard, repair laptop, repair laptop motherboard

Dismantle antediluvian IBM ThinkPad X22

Today, our client sent his antediluvian IBM ThinkPad X22 2662 for repair.This IBM ThinkPad laptop is manufactured in 2002. I am curious about the internal structure of the antique.Let us with my picture to realize the doyen of IBM laptop.
IBM ThinkPad X22 is very thin. You can contrast it whit an mobile phone.

ibm x22 laptop
Up until just a couple of years ago, thin and light laptops either lacked the power of the larger portables or needed an expansion dock for complete functionality. the picture show the expansion dock of IBM X22 laptop

IBM X22 laptop expansion dock
it is very important to a laptop.IBM X22 equipped 12.1” XGATFT.because the laptop is break so we can use the lcd.Now,we open this laptop.

IBM X22 Open
we can see the internal structure of IBM x22.Laptop keyboard,HHD,Laptop fan,laptop motherboard.it is very important to a laptop.IBM X22 equipped 12.1” XGATFT.ThinkPad X 22 uses Travelstar HDD, this HDD is 15G and 4200pr, 2MB cache. The thickness is 9.5mm.

IBM X22 HDD
ThinkPad X22 adopt Intel 830MP chipset.

IBM X22 830MP Chipset
this picture show the Memory slot of this laptop.the laptop only support PC133 SDRAM.

IBM X22 Memory slot
heatsink of IBM X22 have not laptop fan, Benefit from the low Power of this CPU.

IBM X22 heatsink
IBM ThinkPad use Intel Pentium III-M which is M733MHz.

Intel Pentium III-M
end
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Tags: dismantle laptop, IBM ThinkPad, laptop, Laptop Fan, laptop keyboard, laptop motherboard, laptop part, LCD

4 main data bus of Bios circuit diagram

data bus is a group of wires connecting different parts of a circuit with wire carrying a different signal.In laptop computers, the data bus is A collection of wires transfers data between computer components inside in your laptop or another external drive.Bios is Basic Input Output System.if you want to know what is bios,pls click(what is bios)if you repair your laptop bios.It is important to realize that these structure of bios data bus.
now,i introduction four kind of classic data bus of Bios circuit diagram.by the way if you need to buy some bios,we can sell them.ok,Let’s get to the point.
1.SPI bios bus data circuit diagram.

SPI Bios Bus
2.LPC bios bus data circuit diagram

LPC bios bus data circuit diagram
3.

Intel HUB bios bus data circuit diagram
4.

ISA bios bus data circuit diagram
ok.if you can read circuit diagram,i believe these helped to repair bios you a lot.
The article was first published in www.laptoppartwholesale.com, Indicate the source ofreproduced.
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BIOS chip model number, capacity, voltage, type

if your bios of laptop motherboard doesn’t work, you need repair this bios. it may be necessary to know the parameter of bios. Below is a listing of parameter (BIOS chip model number, capacity, voltage, type) for each of the major types of BIOS.
BIOS chip model number
capacity
voltage
type
AMIC A29002 /5V
2M
5V
BIOS
AMIC A29040 /5V
4M
5V
BIOS
PMC Pm49FL002T LPC/FWH
2M
3.3V
LPC/FWH
PMC Pm49FL004T LPC/FWH
4M
3.3V
LPC/FWH
PMC Pm49LP002 LPC /3.3V
2M
3.3V
LPC
SST 29EE020 /5V
2M
5V
BIOS
SST 39SF020 /5V
2M
5V
BIOS
SST 39SF020A /5V
2M
5V
BIOS
SST 39SF040 /5V
4M
5V
BIOS
SST 39SF040P /5V
4M
5V
BIOS
SST 49LF002A /3.3V
2M
3.3V
FWH
SST 49LF002B/3.3V
2M
3.3V
FWH
SST 49LF003A /3.3V
3M
3.3V
FWH
SST 49LF003B /3.3V
3M
3.3V
FWH
SST 49LF004 /3.3V
4M
3.3V
FWH
SST 49LF004A /3.3V
4M
3.3V
FWH
SST 49LF004B /3.3V
4M
3.3V
FWH
SST 49LF008A /3.3V
8M
3.3V
FWH
SST 49LF020 LPC /3.3V
2M
3.3V
LPC
SST 49LF020A LPC /3.3V
2M
3.3V
LPC
SST 49LF030A 3Mb /3.3V
3M
3.3V
LPC
SST 49LF040A LPC /3.3V
4M
3.3V
LPC
SST 49LF080A /3.3V
8M
3.3V
LPC
WINBOND 49F002U /5V
2M
5V
BIOS
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Tags: BIOS, laptop, laptop motherboard

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