1, LCD screen does not show.
Diagnosis steps:
a. Remove all the mobile devices. (Such as floppy, CD-ROM, battery, PCMCIA, etc.). If you pick up to expand Wu station, need to remove the laptop from the DOCK.
b. unplug the Sony VGP-BPS8 battery, use only the power adapter.
c. to see if the system started to hear voices, or start the music, press Caps Lock keys, the keyboard A lantern will not light. detect keyboard lcd control rod, will it be according to continue, or directly remove the power switch button cover.
d. connecting an external display.
e. use FN + F8 to switch back and forth in the two kinds of display modes.
f. to rotate around the screen or press the edge of the screen to observe whether there is any display signal appears.
g. Hold down the power button 8-10 seconds to force shutdown, and then open the system.
h. implementation of the PSA (hold down the fn and then the boot), if over 30 seconds, the computer issued a number of sirens. observe the external display and LCD screen display.
If the external display showing, but no LCD display, it should be a problem with LCD screen.
LCD screen color, Huaping, focus and horizontal bright line
Diagnosis steps:
a. Remove all the mobile devices. (Such as floppy, CD-ROM, Dell Mini 9 battery, PCMCIA, etc.). If you pick up to expand Wu station, need to remove the laptop from the DOCK.
b. Try to move or tap before and after the lcd, to see shows that there is no change?
c. implementation of the PSA (hold down the fn and then the boot), if the PSA is running time, have the same problem and needs to replace the LCD. Otherwise, continue to operate below.
d. boot into DOS mode or BIOS see if there are bright lines, if so, display a failure.
e. connecting an external display test. If the external display are the same, to continue to do the following:
f. re-install the graphics card driver.
g. re-install the operating system.
2, including machine intermittent crashes, blue screen, system speed anomalies (especially slow), most applications can not function properly, repeated abnormal error
Diagnosis
Failure to confirm the phenomenon in detail
Environmental information to determine the machine
For software, hardware, environmental analysis and problem-solving
Software:
Accordance with the relevant error codes to find detailed information and the corresponding solutions
Uninstall the relevant application software
Safe Mode Test
Try killing the virus
System Restore or install (re-installation) Operating System Genuine
Real-Time Detection System using the Task manager
Bios upgrade and related hardware drivers (graphics card, NIC, MDM)
Adjustments to the hardware performance (disable PowerPlay, graphics cards working at maximum performance, the work force NIC speed)
Hardware:
Remove peripherals
Remove the relevant CRU (MDM, Min PCI card)
Disable NIC Card, Wireless, Bluetooth, XDsupport
The use of test tools to test (PSA, Diagnostic, third-party testing tools (3Dmark, Bench Mark)
Exchange of relevant hardware test (hard disk, memory, or third-party hardware (PCMCIA Card)
Environment:
Confirmed that the ambient temperature to meet the system cooling requirements (especially for the system running velocity anomaly)
Change the network environment test (try a different access location, access method)
Failure to confirm the phenomenon in detail
Confirm fault (intermittent crashes, blue screen, system speed anomalies (especially slow), most applications can not function properly, repeated abnormal error)
What is normal during operation, more prone to crashes of the phenomenon? (Such as the Internet; the use of specific software / running game; recording discs; in stand-alone or network copy of data)
The frequency of problems
Under different circumstances the existence of difference? (Different network environment, the working temperature)
Failure is to use an external power supply or battery? (Whether due to power-saving mode cause system instability)
What is useful information? (Error code, the system prompts, event logs, led code)
Environmental information to determine the machine (software, hardware, environment)
Model / OS (Genuine / piracy / whether it is random purchased version / recent re-installed the system is installed before and after any change / whether there have been recent system upgrade (windows update) before and after any change to upgrade?)
See BIOS version / View Device Manager will drive whether it is normal / their version of the situation (card, NIC Card / Wireless NIC Card, MDM)
Are there connecting peripherals? (External mouse, keyboard, U disk, printer, scanner, USB interface peripherals)
Whether the network-related? (Try to use stand-alone environment, confirm the existence of the same problems)
Before and after the problem occurs over whether to replace or add hardware?
To install any new software? (To customers to understand the software name)
Use environment (temperature, elevation)
3, can not boot
If you encounter notebooks get up and can not self-test, power indicator light of the 3 to 4 seconds out of the situation can change according to the following indicator to determine what’s wrong machine.,
A. The top of the keyboard, next to the power button, there are three small lock lights, which is representative of fault diagnosis bright lights .1; (1) represents the flashes; 0 for does not shine
1. If the display flicker 0-1-0, memory problems
2. If the display flashes of 1-0-1, good memory, do not insert
3. If the display flicker 1-1-1 four seconds, and then at the same time off, motherboards and cpu problem
4. If, stable 0-0-1 code, motherboard and cpu problem
5. 0-1-0 if, stable code, motherboard problems
6. 0-1-1 if, stable code, and memory problems.
B. Remove all the peripherals that could interfere with: external power supply, battery, dock, minipci wireless network card, modem, optical drive, hard disk, memory.
C. without any power (remove power and battery), hold down the power button 15-20 seconds, the system will reset the motherboard, which is the so-called discharge.
D. definite displacement of memory, the then external power supply, and then observe the changes in diagnostic lights.
For the d series machines, you can also take the dell diagnostic procedures, hold down the fn is not fixed, and then boot that, if the following error codes, but also on behalf of what the hardware is having problems.
If you remove the memory, there was no 0-1-1 static memory error code, Kanxia table instructions:
1. If only the power lights, motherboard problems
2. 0-0-1 shows an error code blinking, motherboard problems
3. If all the lights four seconds and then locked out at the same time, motherboards and cpu problem
4. Display a static 0-0-1 error code, cpu problem.
4, battery failure
We found that the battery can not charge, and charging indicator light, flashing red lights three times, look at the green light flash, which is that the Apple Powerbook G3 battery broken?
We can be judged through the following steps.
1. Connect the power adapter, boot, press F2 key to enter the BIOS settings, press Alt + P to “Page 5 of 7″, the following diagram to see the red box as specified in “AC Adapter” is not displayed as “None” or “UnKown”, if it is, then the motherboard or an external power supply problems at this time if the conditions can be exchanged an adapter test.
For the new machine (D610, D410, D510 and other machinery, bios Dell xps m1730 battery state is the battery info on the following diagram
If the BIOS were “AC Adapter” is not displayed as “None” or “UnKown”, but the number of its power, such as 65W and so on, then the general board and there will be no external power supply failure, please check if the battery problem, Remove the Dell Inspiron E1505 battery, according to their indicator button, to see whether the Asus U3 battery indicator button is displayed as “1,3,5″ state, that is, every other one lights. If so, then the battery is faulty. If all the lights are not bright, then you put the battery and power adapter plug into the notebook above, and then press the button on its lights to see if there are no bright light at this time.
If the conditions, take someone else’s battery and power adapter give it a try, and in another test laptop above your battery and power adapter. If you can determine the problem batteries or power adapter, you can mail the details of repair test results to the Client support center, and provide batteries or power adapter corresponding number, these two components can be numbered in their respective parts the back of the found, similar to the XX-XXXXX-XXXXX-XXX-XXXX such characters.
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