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Reprinted from alumni of the user at 14:23 on July 15th, 2010 Read (loading. ..) Comments (0) Category: Personal Diary
1: motherboard failure
2: Graphics fault
3: sound card trouble
4: hard disk failure
5: memory failure
6: drive failure
7: Mouse Fault
8:
Keyboard failure
9: MODEM failure
10: printer problems
11: Display fault
12: recorder malfunction
13: Scanner failure
14:
Display jitter causes
15: Troubleshooting BIOS settings
16: Restart the computer failure
17: CPU utilization is too high to solve the problem
18: Discovery of hard disk damage and repair
19:
Manual processing of malicious code page
20: Common Faults and integrated sound solution
21: USB storage device does not recognize
22: black failure
23: WINDOWS
Blue screen Fact Sheet
24: WINDOWS Error Code Complete
25: BIOS self-test and boot failure problems are related to the following breakdown
Quick and problem-solving power
Cause of brain malfunction confusing, elusive. And the components of the Windows operating system is relatively complex, computer event of a failure, for the average user, you want to find out the failure to accurately
Because it is almost impossible. So it is that if we encounter when the computer failure, completely helpless out? This is not so, the computer-generated although there are many reasons for failure, but as long as we carefully
Observation, conscientiously sum up, we can still have some computer failures of the law and approach. In this pamphlet, we will some of the most common and most typical computer fault diagnosis, maintenance methods show
To you, through it, you'll find ways to solve computer failure on your side, simple, but effective!
one motherboard
motherboard is the computer off
Key components, plays a vital role in the computer. If the motherboard malfunction will affect the work of the entire PC computer system. Here, we take a look at the motherboard in the course of which the most common faults.
often
See malfunction one: boot no display no display
computer boots, the first thing to check is a BIOS. Motherboard BIOS, the hardware store important data, BIOS, is also
Board some of the more fragile, easily damaged, once damaged it will cause the system can not run, the recurrence of such failures are generally due to the motherboard BIOS damage caused by CIH virus (of course not rule out the motherboard itself fault
Cause the system can not run. .) General BIOS hard drive after the virus destroyed the data will be lost, so we can detect the hard disk the data is intact to determine whether the BIOS is damaged, if the hard disk data
Intact, then there are three reasons why the phenomenon of power no display:
1. Because the motherboard or expansion card expansion slot problems, leading to plug in expansion card, such as sound cards, etc. without the display board is not responding.
2. motherboard jumper settings in the CMOS in the CPU frequency does not, it may lead to not show fault, which, as long as the clear CMOS to be addressed. Clear CMOS jumper on the motherboard of the lithium battery with the general
Recently, its default location is generally 1,2 short,
cheap chanel handbags, just short of his conversion to jump a few seconds for the 2,3 to solve the problem, before the old board for Should the user can not find the jumper, just remove the battery, to be displayed into the boot
CMOS settings and then shut down, will go up also reached the CMOS battery discharge purposes.
3. motherboard does not recognize the memory, memory corruption or memory does not match the boot no display can lead to failure. More selective in some older motherboards memory, once the plug in the motherboard does not recognize the memory, the motherboard will not start, and even some
Board does not give you any fault tips (tweet). Of course sometimes in order to expand the memory to improve system performance, the results of different plug brands, types of memory can also cause such a failure occurs, so maintenance should be
Pay more attention.
for the failure of the motherboard BIOS is damaged, we can plug in the ISA card to see whether the display (If prompted, can prompt steps below.), if not
A startup screen, you can automatically update your BIOS to do a floppy disk, reload the BIOS, but some motherboard BIOS is damaged, the floppy drive did not work this time, try to use the hot solution method
Decision (I have tried, as long as the BIOS the same motherboard at the same level can be successful writer..) However, in addition need to use the same BIOS hot things, some components may cause damage to the motherboard, so reliable
Method is to write code using the BIOS update file to write device inside the BIOS (this service can find a safer computer vendor solution).
Troubleshooting II: CMOS settings can not be saved
Such failures are generally inadequate because the motherboard battery voltage, which can be replaced, but some board battery replacement also can not solve the problem, then there are two possibilities:
1. Motherboard circuit problems Professional maintenance of this find;
2. motherboard CMOS jumper problem, sometimes for the wrong CMOS jumper on the motherboard is set to clear the option, or set to an external battery, making the CMOS data can not be Save.
Troubleshooting
III: In Windows, install the motherboard driver CD-ROM drive read the disk after the crash or slow down the phenomenon
in some no-name motherboard sometimes this kind of phenomenon, the motherboard drivers installed
Finished, restart the computer can not enter the Windows 98 desktop, normal mode, and the driver under Windows 98 can not be uninstalled. If this occurs, it is recommended to re-find the latest drivers installed, the problem can be solved generally, if it is not, can only re-install the system.
Troubleshooting
Four: Installing Windows, or start Windows when the mouse is not available
software such failure occurred because the error is generally caused by the CMOS settings. In the CMOS settings
Power management has a modem use IRQ field projects, and his options are 3,4,5 ......, NA, generally it is the default option is 3, set it to 3 other items that interrupt be.
Fault Five: Computer frequently
Crashes, during the CMOS settings will appear the phenomenon of death
Dead phenomenon happened in CMOS, usually the motherboard or CPU have problems, should the press law does not resolve the failure, it only
Have replaced the motherboard or CPU.
recurrence of such failures are generally due to a problem with the motherboard or the motherboard designs Cache heat caused by bad, I had found in the 815EP motherboard because the motherboard
Heat is not good enough result in the failure phenomenon. Touch the CPU after the crash around the motherboard components, found that the temperature is very hot. After replacing the high-power fan, crash failures can be resolved. Cache problem for
Fault, we can enter the CMOS setup, the Cache can fix the problem after the ban, of course, Cache ban would certainly be an impact upon the speed.
Troubleshooting Six: Motherboard
COM port or parallel port, IDE port failure
the recurrence of such failures are generally due to causes related hardware hot plug the user, the user can use this time instead of multi-function card, but must be replaced before
Prohibition of the COM port on the motherboard comes with the parallel port (some motherboards with IDE ports to be banned for proper use.)
graphics
a common fault: no display
such power so
Barrier is generally bad because the graphics card or motherboard with the motherboard slots caused problems. For some integrated graphics motherboard, main memory if the shared memory, you need to pay attention to the location of memory, usually in the first memory slot should be
Insert a memory. Causes the graphics card no display power failure, power is generally given after a long, two short beeps (AWARD BIOS for the card is concerned).
two common faults:
Show Huaping, blind to the handwriting
such failures are generally due to high-resolution monitor or video card does not support caused. Huaping startup mode can be switched to safe mode, and then again in
Windows 98 into the display settings, select the state in 16 colors \Restart in normal mode Windows 98 system, delete the graphics drivers, restart the computer. Or not to enter safe mode, in a pure DOS environment, edit
SYSTEM.INI file,
display.drv = pnpdrver to display.drv = vga.drv, the Save and exit, and then to update the
in the Windows driver.
often
See Failure three: color display is not normal, such failures are generally the following reasons:
1. Graphics card and monitor signal line is bad
2. Display their own fault
3. In some software in the run-time color is not normal, usually common in older machines, there is a check in the BIOS, the color of the option to open it to
4. Graphics damage;
5. display is magnetized, generally due to such phenomena with a magnetic objects too close to the due magnetized may also cause the display appears deflection phenomenon.
four common faults: crash
Recurrence of such failures are generally more common in motherboards and graphics cards or motherboards and graphics cards are not compatible bad; graphics card is not compatible with other extensions can also cause crashes.
five common faults: the screen abnormal noise
Or patterns
such failures are generally due to problems with memory or graphics cards caused by poor contact with the motherboard. Finger position to be clean or replace the graphics card was
card.
often
See malfunction Six: missing
graphics driver graphics driver to load and run automatically after a period of loss of driver, such failures are generally due to poor quality or graphics card not compatible with the motherboard
Capacity, making the graphics card temperature is too high, causing the system to run unstable or freezes, then only replace the graphics card.
addition, there is a class of special circumstances, the previous graphics drivers to load, but
After the graphics driver to load into Windows when the crash occurred. To change to other types of cards in loading its driver, insert the old card to be addressed. Should such a failure can not be resolved, then note
Registration Form failure to restore the registry or reinstall the operating system can be. A common fault
sound: sound mute. There are common causes of this failure:
1. Default output driver is \Click the sound icon bottom right corner of the screen (small loudspeaker), appear to adjust the volume slider below the \Regular pronunciation.
2. soundcard conflict with other cards. PnP card solution is used to adjust system resources so that all cards without disturbing each other. Sometimes, open the \Is not sound,
cheap designer bags, in fact, there is conflict, but the system did not check out.
3. After installing the Direct X sound card is not audible. That this sound card with Direct X compatibility is not good, need to update the driver.
4. one channel silent. Check the sound card to the audio speaker cable is disconnected.
Troubleshooting II: Sound Card issued
Excessive noise. There are common causes of this failure:
1. Card is not correct. Manufacturing precision is not high enough because the chassis, sound card manufacturer or installed outside the damper caused by bad sound card can not be closely integrated with the motherboard expansion slots, can be seen visually on the card \This phenomenon
In the ISA card or PCI card has, are common problems. Pliers generally available correction.
2. Active Speaker Speaker input connected to the sound card output. For the active speaker, should be connected to sound card Line out side, it has not been
output signal amplifier on the card, the noise should be small enough
More. There is only one output card is the Speaker or Line out jumpers on the card depends on the decision, the factory default is often Speaker, so the jumper to disconnect the sound card.
3. Windows comes with a bad driver. Sound card driver is installed, you should select the \With \If you have installed the Windows driver that comes with the optional \�� voice, video and game controllers \
often
See Failure three: sound can not \I once had a sound card under Windows 98 using the original driver disk to install the driver install does not matter how, and had to replace the use of Creative SB16 driver, everything is normal. Then upgrade to Windows Me, not normal and back with Windows 2000 (full version) comes with just the normal sound card drivers.
2.'s most vexing problems than the Windows 9X Plug and Play device under test has chosen to given a free hand to help you install the driver, the driver side is not used, then, every time you delete out reloading will repeat this, and can not use the \Parts \Hundred percent efficacious, have saved countless lives ... ... the sound card of course, modify the registry can also achieve the same purpose.
3. does not support the PnP sound card installed (also applies to not use the PnP install the PnP sound card): Go to \Windows
Search for new hardware? \CD silent
1. Completely silent. With Windows 98's \Using a 4-pin CD-ROM audio cable to connect the analog audio output and sound cards
The CD-in can be, this line will purchase CD-ROM included.
2. there is only one channel sound. Optical output signal generally about two lines, the middle two lines to ground. Because the audio signal line 4 line color is generally different, the color can be found from the line correspond to the interface. If the sound card only
Each interface with an interface or does not match the audio cable, audio cable wiring had to change the order, usually only one of two lines of the change can be.
five common faults: PCI sound card
sonic boom occurs
PCI cards are generally used because of technical causes Bus Master PCI bus hung in the hard disk read and write, mouse movements and other operations to enlarge the background noise
reason. Solution: turn off
Bus Master PCI graphics capabilities into AGP graphics card, sound card for the PCI slot.
six common faults: not the normal recording
first check
There is nothing wrong with the microphone jack into the other, and second, double-click the little speaker, select menu \Then in the \\If the \Try the \
so common
Barrier VII: Can not Play Wav's, Midi Wav Music
can not play music phenomenon is rare, often due to \One, you can disable a; can not play MIDI files may have the following 3 possible:
1. Early ISA sound card 16-bit mode may be due to 32-bit mode is not compatible with the MIDI playback is not caused by normal By installing the software wave table
way should resolve
2. Today, most of the popular PCI sound card with wavetable synthesis technology, if the MIDI playback is not part of it is likely because you do not load the appropriate wavetable sound library.
3. Windows volume control in the MIDI channel is set to silent mode.
eight common faults: PCI sound card to use in the WIN98
some of the unusual
Users complained that the sound card driver installation process everything is normal, no device conflicts occur, but the following is not aloud in WIN98 or cause other problems. This phenomenon usually occurs in the PCI sound card,
Please check the installation process your PCI sound card inserted in the article which PCI slot. Thermal considerations for some friends, like to stay away from the sound card inserted in the AGP slot, near the ISA slot that several PCI slots
In. The problem often arises here, because there is a Windows98 Bug: sometimes only correctly identified and inserted in the PCI-1 PCI-2 sound card two slots. In the ATX motherboard close to the AGP
Two PCI is the PCI-1 and PCI-2 (the opposite in some ATX motherboard, close to the ISA is the PCI-1), so if you do not have the PCI sound card installed in the correct slot, Q
Question will be produced.
Memory
computer memory is one of the most important parts, and its role in doubt, then the memory is the most common faults are what it?
often
See malfunction one: boot no display
memory because the recurrence of such failures are generally due to memory with the motherboard memory slot is bad cause, as long as smear his finger back and forth with the eraser part of the solvable
Decision problem (Do not use alcohol and other cleaning), there is memory corruption or a problem with the motherboard memory slot can also cause such a failure.
memory causes the boot no display failure, host speakers generally
Long beep (for the Award Bios is concerned).
Troubleshooting II: Windows Registry damage often for no reason, suggesting that this requires the user to restore
Classes because of memory failures are generally caused by poor quality, it is difficult to repair, replace only one way.
three common faults: Windows often automatically enter safe mode
Such failures are generally due to the motherboard is not compatible with the memory or the memory caused by poor quality, common in the high frequency of memory for some do not support this frequency of memory on the motherboard, you can try in the CMOS settings in the lower
Keep reading to see whether the speed to solve the problem, should not, it can only replace the memory.
Fault IV: random crashes
such failures are generally due to the adoption of several
Different memory chips, due to the memory of different speeds to produce a time difference resulting in death
machine, which can reduce the memory speed CMOS settings to be resolved within, otherwise, only within the same model used
Survival. Another possibility is that memory is not compatible with the motherboard, these phenomena generally rare, the other is also possible that poor contact with the motherboard memory computer random crashes caused. 01
five common faults:
After the memory to increase system resources, but reduced
such phenomena are generally not compatible with the motherboard and memory caused the high frequency of memory commonly found in memory for some do not support this frequency of the motherboard memory
, When such a failure you can try the memory in the COMS will lower the speed set too try.
six common faults: some software often runs out of memory tips
This phenomenon generally due to inadequate system disk space left, you can delete some useless files, leaving some space can be generally maintained at
300M or so.
Troubleshooting
Seven: Install Windows to boot from the hard drive to detect disk space, memory
prompted such failures are generally due to the user in the config.sys file by adding
The emm386.exe file as long as you can to block out the problem. CD-ROM drive is
computer hardware components in one of the shortest life. In fact, there is still a lot of scrap drive
Great value in use, as long as a little maintenance click on it. This often do not have any profound knowledge of radio, do not need anything too complicated to use the repair tools and materials. As long as you carefully observe the symptoms
And taking into account some of the implementation of the following exclusion method, I believe you can restore the old drive, or old \
a common failure: hard disk drive light is always flashing work
This is an illusion, it is not. Because of the hard disk light flashes and the hard disk drive with an IDE interface connected, the disc also control the hard work the results of light. Drive unit can be connected to an IDE interface, independent
On.
Troubleshooting II: Under the Windows environment to operate on the CD-ROM when the show \However, Windows 32-bit disk access on CD-ROM to a certain extent. Most CD-ROM connected to IDE hard drive interface does not support
Windows 32-bit disk
Access, to generate an internal error Windows crashes. After entering Windows, the \Save \The error.
Fault Three: drive can not properly read the disk, displayed on the screen: \? \
In this case,
Should detect viruses, use antivirus software to check on the whole virus, the virus can not find the file if the editor to open C under the root directory of the CONFIG.SYS \Drivers and drivers are broken, and processing, but also with a text editing software View \A \
Troubleshooting four: drive when using the
Prompted to read and write errors or diskless
this phenomenon mostly in the changer If we can not place on the operation of the drive caused the failure. All operations on the drive will have to wait for the disc light is
Just before the operation at time. DVD playback when the time should be transferred to disk and back to zero, so that can avoid these errors.
five common faults: in the screen when you play a movie VCD
Stalled or broken phenomenon
check the AUTOEXEC.BAT file \If so, then the
MSCDEX.EXE SMARTDRV statement to put before
; Party not to use high-speed CD-ROM rushed process to SMARTDRV.EXE / U; failure can be ruled out.
often
See malfunction Six: CD-ROM reading the data, read and sometimes not, and the longer the time to read the disk drive
not read the disk hardware failure focused on the laser head assembly, and can be divided into two kinds of situations: a
Species caused by the use of long laser tube of the old
; the other is the photocell lens surface is dirty or dirty and displacement of the laser tube deformation. Therefore, the power to adjust the laser tube, the need for optical lens tube and the laser tube
Cleaning.
photoelectric tubes and focusing lens cleaning method is: Disconnect the laser head assembly, a flat cable, remember that direction, open the laser head assembly. Then see hooded jacket focused laser
Lens, remove the jacket will find that focusing lens from the four fine copper wire connected to the focus, tracing the coil, the optical tube assembly is installed in the bottom of the hole in the lens. Thin wire with a stick wrapped in cotton, a small amount of distilled water and wipe (not with wine
Fine polished surface of optical lens tube and focus),
replica chanel handbag, and to see whether the level of the lens on the laser tube is suspended, it shall be adjusted appropriately. Thus, the cleaning is completed.
adjust the laser power. In the laser head
Component side has a little like a cross screw potentiometer. Note the use of color under its initial position, generally the first clockwise 5 �� ~ 10 ��, not re-installed test machine counter-clockwise 5 �� ~ 10 ��, until it can successfully read the disk.
Note must not rotate too much, so much power and burned photocell.
seven common faults: not detected CD-ROM drive or the boot test failed
This may be due to drive
Data cable connector is loose, damaged or the hard disk drive data cable jumper settings error caused by such problems encountered when
waiting, we should first check the drive's data cable connector is loose, and if found not plugged in,
Will its re-plugged, plug tight. If this still does not resolve the failure, we recruited a new data can be put on line to try. This time if the fault persists, we need to check the jumper CD
Set, if there are errors, you can change it.
Mouse mouse
failure analysis and maintenance is relatively simple, most of the fault for the bad interface or buttons, broken, dirty mechanical positioning system
Pollution. A small number of failures for the internal components or circuit Weld mouse, which are found in certain low-quality products, especially in the light-emitting diode, IC circuit is damaged the majority.
a common failure: can not find the mouse
1. Mouse completely damaged and need replacement mouse.
2. mouse connected to the host serial port or PS / 2 oral exposure bad, carefully take a good line, you can restart.
3. motherboard serial or PS / 2 ports from getting damaged, this situation is rare, if this is the case, had to replace a motherboard or a serial port on the multi-purpose card.
4. mouse line is bad, this is the most common. Poor contact points as the mouse inside the wire and circuit board connections. Failure as long as not another PS / 2 joints, the general is not difficult to repair. Usually due to
Relatively short lines, or compare the mouse lines are messy and hard pulling causes the reason,
miu miu handbags replica, the solution is to open the mouse, and then use a soldering iron to solder weld. There is another situation that is bad inside the mouse cable is due to the time
Caused by the aging caused by long, this failure is often difficult to find, replace the mouse is the fastest solution.
Troubleshooting II: the mouse can be shown, but can not move the mouse
Flexibility decline, not as arbitrary pointer, but slow, inaccurate positioning, or simply can not be moved. This is mainly due to mechanical positioning the mouse scrolling axis in the accumulation of excessive dirt and
Lead to transmission failure, resulting in rolling is not flexible. Maintenance of the internal focus on the mouse X axis and Y axis on the transmission mechanism. The solution is to open the plastic ball locking plate, remove the mouse ball to roll, with a clean cloth dipped in
Of detergent to clean the rubber ball, the friction shaft can be cleaned with alcohol. Axis at the best drop a few drops of sewing machine oil, but it must be careful not to flow to the friction surface and the seam on the grid encoder. Will be cleared of all dirt
After the flexibility of the mouse ever resume.
Fault Three: the mouse button failure
1. the mouse button without movement, this may be because the mouse button and the circuit board micro switch is too far away or click on the switch after a period of reduced ability to use the rebound. Open the mouse, the mouse buttons below a thick glue
Moderate plastic film, the thickness is determined according to actual needs, can be used after treatment.
2. the mouse button is not the normal pop-up, this may be because when the key switch in the bottom of the bowl-shaped micro-fracture caused by exposure to film, especially the long-term use of plastic is easily broken reed. If it is three-button mouse, you can be the middle
It removed a key emergency. If it is good quality original brand-name mouse, you can solder, the open micro switch, carefully clean the contacts, some of the grease, the bottles can be used.
key keyboard
Plate in the course of the fault manifestations are varied, the reasons are manifold. A bad failure, mechanical failure has its own keys, as well as logic circuit fault, Xu Han, false welding, sealing off the oxygen and metal hole
Of other failures. Maintenance of different symptoms according to the analysis to determine, find out the cause of the malfunction, make the appropriate repairs.
a common failure: some keys on the keyboard, such as the space bar, Enter key does not
Work, sometimes, many times basis having only one or two characters enter, and some
keys such as cursor up key is pressed longer, continuously moving the cursor on the screen, keyboard, other characters can not be entered at this time, need Press only
Can bounce to.
this failure as a keyboard \Students. Card key appeared keyboard phenomenon caused by the following two reasons: one reason is that column keycap insert the following position offset, making the keycap is pressed and the key body shell can not bounce caused by a stuck key cards, For this reason multiple
Born in or near the new keyboard on the keyboard. Another reason is the key long-term use, the return spring elasticity becomes poor, shrapnel and the press rod friction becomes larger, can not make key bounce caused by card key, this occurred because
In the long-term use of the keyboard. When the keyboard appears when the card key fault can be allocated under the keycap, and then pressing the press lever. If the projectile is not up, or by fatigue, is caused by the second, otherwise, for the first reasons. If the
The keycap and the key causes the body shell stuck \into the size equal to or slightly larger
The key to body size, and press the lever in the position adopted by the ammonium can open a free passage of the square hole shot, to set in at pole, plug keycap; keycap with this gasket to prevent stuck with the key body , you can fix problems button; if the
Spring fatigue, shrapnel resistance change causes a large card key failure, then the body can be special key to open, a little tension return spring to restore elasticity; remove the shrapnel will be key to the restoration. By removing the shrapnel and reduce bounce by rod resistance
Button so that the fault has been restored.
Troubleshooting II: Some characters can not enter.
if only one key character can not enter, it may be the key pad failure or
Weld. Inspection, in accordance with the method described above, open the key
plate, with a multimeter measure the resistance profile of the on-off status of contacts. If the key does not always turn on when pressed, then button reed fatigue or bad, in need of repair
Or replacement; if key is pressed off normal contacts, that may be due to cold solder joint, sealing off holes or gold scrap due to oxidation can be measured along the printing line, paragraph by paragraph, to find fault re-welding; Ruoyin metal hole oxidation failure, can be oxidized
Layer of clean, then re-weld; if caused by the metal hole completely off circuit, it can lead to additional solder connections.
Fault Three: If there are multiple neither in the same column, not by the same line
Key can not enter.
may be somewhere in the column line or row line circuit, or logic gate circuits may be malfunctioning. At this time oscilloscope can be used to detect high-frequency 100MHz, the device to find fault
Weld point, and then repair it.
Fault IV: keyboard input is inconsistent with the character screen.
such failure may be due to short circuit phenomena of the board
, And its performance is the key to it is displayed as the same as the other characters, this time can be measured multimeter or oscilloscope to determine the failure point for repair.
Troubleshooting five: Press a button to generate a
String of multiple characters, or key when the character steps.
This phenomenon is caused by a logic circuit failure. First select a column of characters, if the enter key of a row without a column, may produce a number of other
Characters phenomena; if a column with the Enter key, the character will have a bounce into the system and can not be the last phenomenon, check the logic circuit chip with an oscilloscope to find fault with the model after the replacement of the chip of the new chips, troubleshooting.
Modem
often
See a failure: 56K of Modem not up to the 56K. This problem can be considered from the following aspects:
1. 56Kmodem actual maximum speed can only reach 53K or so, to consider various effects, 56Kmodem speed is generally between 45-53K.
2. Modem telephone line to a large extent influence the transmission rate, if the phone line quality is not good, line voltage instability, 56K on the Modem
to less than 56K; other use of the Internet extension, but also
Will affect the connection speed.
3. not installed the correct driver.
4. and the ISP uses different protocol, only your Modem and your ISP agreement is the same, Modem 56K will meet the standards.
exclude the above reasons, your 56K Modem is still much faster than 53K, this is your Modem hardware problems can be considered a replacement or repair
.
Troubleshooting II: Modem often dropped, resulting in
Dropped calls problem may have several reasons:
1. Phone line quality is not good;
2. If the data terminal ready (DTR) over the duration of the signal void Modem default settings, it will cause dropped;
3. If your phone has a \Modem their quality and compatibility problems between different Modem Modem is caused by a common cause of dropped calls.
three common faults: Modem no dial
No sound
time when the Internet late at night when the dial tone in order not to influence others sleep, through the appropriate AT command to change: You can use the ATM0 no dial set Modem
Sound, and ATM1 set Modem connection from dial-up to a dial tone. Select the volume you can change the following instructions, ATL0 (low volume), ATL1 (low volume), ATL2 (tenor
Volume), ATL3 (high volume).
Troubleshooting four: fax rate 14400
Modem reach the maximum fax rate is 14400, and fax
Only when the rate of 9600. This is because most of the fax machine to send and receive rates are
is 9600, only the rate is 14400 or 33600 using the fax machine, Modem fax speed
Rate will reach 14,400.
five common faults: Modem can not dial or connect
if not installed correctly on your Modem, communication functions will not work
Work. The following lists the authentication process of the communication Modem with Windows installed an incompatible driver files, could lead to COM port and Modem not working properly, it should first of all
Check that the correct Windows98 loaded file.
1. Testing existing communication file
(1) the System directory and SERIAL.VXD COMM.DRV Windows95 floppy disk or CD-ROM file with the original file to compare, check
check file size and date
Are the same.
(2) confirm the System.ini file has the following lines: [boot] Comm.drv = Comm.drv [386enh] device =* vcd
(3) In the \Note: Windows98 not in
System.ini
Loading SERIAL.VXD driver, but the use of up command to load it. In addition, there is no System.ini also associated with the
* VCD file. These files are built
VMM32.VXD in.
2.
test the modem's configuration in the \Verify that your modem's system
Manufacturers and models, run the \If your modem does not appear in the list of installed modems
in
Please click \If the manufacturer and the type is not correct, and not in the list of your equipment manufacturer and type, try to use \Hayes-compatible \br> In the \Confirm whether the selected \
4.
check the correctness of the port in the \Modem, and then click \If not, please select the correct port, and then click \
5. Confirm the serial I / O address and IRQ settings are correct
in \Then click \Chong
Conflict device list \Home.
Note: If the mouse on COM1 or other equipment, please do not use the modem on COM3. Usually COM1 and COM3 ports use the same kind of
IRQ, and
And in most computers can not be used. COM2 and COM4 have the same problem. If possible, change the COM3 and IRQ settings
COM4 port, so they no longer conflict.
Also, some graphics card and COM4 port addresses conflict, the conflict if found, use the other ports, or replace your graphics adapter.
6. Test Port Settings
In the \Rate, data bits, stop bits, and parity.
7.
test the modem baud rate in the \Click \
Note: If you call the main system to set the baud rate in the original can not communicate, then sometimes drop
Lower baud rate may solve the problem.
in the office printer, ink jet printer is then used in a more general one device. Inkjet printers due to the use, maintenance, improper operation and other factors often
There will be some failures, how to resolve the concerns of the user. Here we put in the daily work and treatment of common faults summed up, we want to help.
a common fault: playing
When India ink scarce, illegible handwriting processing, most of the fault is due to the long-term unused printers or other reasons, resulting in the ink delivery system disorders or nozzle clogging.
exclusion: If
Nozzle clogging is not very powerful, then the implementation of the printer directly to the cleaning operation. If no effect after repeated washing, you can win the cartridge (one for non-printer cartridge nozzle, the nozzle need to win, but
Carefully), put the nozzle in warm water soak for a while, attention must not be part of the circuit board is also immersed in water, or else, stained with absorbent paper to take away the water droplets, and then fitted with nozzles to wash a few times can
The.
Fault Two: Replace the new cartridge, the printer in the boot panel on the \only
Will be bright. Replacement ink cartridges, the printer panel on the \cartridges. Because
Is to replace the print cartridge, printer ink will charge the ink delivery system, and this process can not be turned off, so the printer can not detect the re-install the cartridges. In addition, some printers the ink
Measurement of capacity is the use of electronic counters inside the printer to the count (especially in the use of color ink on the statistics), when the counter reaches a certain value, to determine the printer ink exhausted. In the ink cartridge replacement
Process, the printer will carry out its internal reset the electronic counter, thus confirming the installation of a new cartridge.
Solution: Turn on the power, the print head moves to the cartridge replacement position. The cartridge
After installation, get the printer to charge the ink, the ink filling process is finished, troubleshooting.
Troubleshooting III: Treatment of head
soft soft plug plug plug means that, for various
Causes the viscosity of the ink in the nozzle due to the break bigger fault. General use original ink cartridges can be restored after repeated washing, but this is way too wasted ink. The easiest way is to use your hands to carry out the empty cartridge
Nozzle cleaning. Before cleaning with an empty cartridge, first using a needle as the cartridge out of the residual ink, the cleaner the better, then add the cleaning solution (available aftermarket). Filling cleaning fluid should be conducted in a clean environment,
Plus a good cleaning solution to the cartridge by the printer to normal operation on the machine, and constantly cleaning the printer button at its cleaning. Use of the residual ink cartridge cleaning fluid mixed with light colors for printing the test, put on a good ink after normal
Box can be used.
Troubleshooting four: Clean the pump nozzle in the printer troubleshooting
something wrong with the printer is more wash pump nozzle, and it is the main factor causing the plug
One. Cleaning the printer on the printer nozzle pump nozzle protection plays a decisive role. After the car back to the bit nozzles to clean the pump nozzle from the nozzle to the weak pumping of treatment on the nozzle seal protection. Install a new cartridge in the printer or the nozzle
Are disconnected, the machine's suction pump to the bottom nozzle for exhaust through it, the higher the precision of this work mouths as possible. However, in actual use, its performance and air tightness due to time, the dust and ink residues in the mouth
Coagulum increases. If the user is not on its regular inspection or cleaning, it will keep your print head out of some failure.
conservation of this part of the method: Remove the printer's top cover
Remove the car, using a needle wash them inhaling pure water, in particular, embedded within the pores of the mouth to fully clean the gasket. In this wish to remind users to clean the parts, do not use ethanol or methanol for cleaning them,
This will result in this component dissolved in the mosaic of the porous gasket deformation. The other thing to mention is that inkjet printers should be kept away from the heat and dust of the work environment, only a good working environment to ensure long-term regular use of the machine.
often
See fault V: Detection of normal and printing ink line is evidently worse treatment
inkjet printer in use due to use of the frequency and time and print accuracy become worse. Inkjet print head
There is also a life. General use from the beginning of a new nozzle to the end of life, could not see any fault if more smoothly, that is, the amount of cartridge life of 20-40 months. If your printer has been in use for a long time now
Print accuracy variation, you can replace the cartridge method to try, if for a few cartridges, print output results are the same, then you head this printer will be replaced. After replacing cartridge if there is a change
That you may use poor quality ink cartridges in the non-original ink.
If the printer is new, the printed results can not satisfy you, often the print line is not clear, text, graphics distortion
Oblique, the outer boundary of fuzzy text graphics, print out the ink control synchronization accuracy, which means you may buy a ######## ink cartridges or use non-original products, should be its immediate replacement.
Troubleshooting
Six: walking car handling
dislocation meet inkjet printer is a walking track car two sets of copper powder alloy round steel shaft with a precision combination of sliding completed. While running a small car design
Felt installed to supplement the axis of a lubricating oil, but the environment we live in the dust everywhere, a long time, due to air oxidation, dust, damage to the surface of the oil aging shaft failure, then if continue
Continued use of the printer, will be due to shaft friction increases with the copper sleeve dislocation caused by car travel, can not be used until the collision caused the front.
solution is: Once this failure should be closed immediately
Printer power supply, will not return to place his hands back into the car parking spaces. To find a small piece of sponge or felt, full of oil dipped on the sewing machine oil, tweezers grip rub back and forth on the spindle. It is best to remove the spindle, the cleaned oil, so that
The best.
meet another car because of damage caused by the device. Car parking spaces above the printer have a photoelectric sensor, which is provided to the printer, print car board reset signal
Important components. If this component is too large or damaged due to dust, the printer can not find the car back to the signal due to hit the front, which led to not use the general out of the failure to replace the device.
display
Display a long time, a variety of small problems will follow. Experts believe that, to solve these little problems is actually very simple, with a pair of eyes can see the fault lies.
Troubleshooting
A: just getting on the computer screen of machine shake so badly, and sometimes even the icons and text are not clear, but after twelve minutes and then will return to normal.
this phenomenon occurred in the wet
The weather is damp inside the display's sake. To solve this problem, use damp sand in the food packaging to string together with cotton thread, and then open the back cover of the monitor will hang in the damp sand near the end of the tube neck tube attached to tube socket
Near. Thus, even in wet weather, it will not appear above the \
Troubleshooting II: computer boots, the display is only heard and not seen the painting, dark. Have to wait several
To show a picture minutes later.
seat tube leakage is due to be replaced sockets. Open the back cover to see the end of the tube a small circuit board, sockets to solder on the circuit board
. Carefully unplug the
This circuit board, and then welded pipe under the seat, to the electronics store to buy back a seat the same tube, tube socket weld and then returned to the circuit board. Then install the board not to rush back to first find a small piece of sandpaper, very carefully to the end tube
After the protruding pin wipe clean with sandpaper. In particular, pay attention to pin on the oxide layer, if not clean polished soon relapse. The board back together and you're done.
Troubleshooting III: significant
The monitor screen, there are always lingering clutter interference or lines, and the speaker also has unwanted noise.
This phenomenon is mostly caused by poor power supply interference. If you too lazy to get involved, you can
Replace a new power supply. If you have enough hands to
power, you can also try to replace the power within their own filter capacitor, which often can be effective; if the result is not obvious, you can switch
to be replaced.
often
See malfunction Four: Monitor Huaping.
graphics on this issue is caused by more. If it is new for the graphics card, the card may be of poor quality or incompatible, then there is not yet installed the correct driver
Sequence. If the old card and added memory, then there may be new graphics and added to the original model parameters vary due to memory.
five common faults: display a black screen.
as
If a card is damaged or broken monitors and other causes no signal sent to the display, the display will stop flashing lights did not receive prompt signal. If the resolution is set too high, the maximum points over the display
Resolution will also appear black, severe destruction of the monitor, but now the display has a protective function, when the resolution exceeds the set value is automatically protected. In addition, conflicts can also cause black hardware.
significant
Jitter causes the monitor
monitor refresh rate is set too low
set when the monitor refresh rate lower than 75Hz, the screen shaking often appears
Moving, flickering, the refresh rate properly raised, such as the set above 85Hz, the screen jitter phenomenon generally not occur again.
power transformers and chassis from the display too close to
Power transformer will result in a larger work of electromagnetic interference, causing screen jitter. The power transformer on the chassis and the monitor away from the place where the problem can be solved.
bad power supply or
Power equipment has been aging
many no-name computer components used in power supply work, the materials used are very poor, could easily lead to poor or the computer's power supply capacity can not keep up the circuit, when the system is busy, the display in particular,
Screen will appear the phenomenon of jitter. Begin to age the computer when the power supply, are likely to cause the same problem.
speakers placed too close to
enough away from the monitor speakers will do the magnetic field effect
Disturbing the normal operation of the monitor so that the display screen generated string of color, such as jitter and magnetic interference.
virus trouble
some computer viruses will disrupt the display, such as: Character
Upside down, shake the screen, graphics, flip display. Screen jitter everywhere online script, is enough to make you move in after the first big as an ox.
graphics card re-insert bad
Graphics card, the fault can be obtained ruled out.
WIN95/98 system caused
after the write cache as is for this reason that in the Control Panel - System - Performance - File System -
Troubleshooting After all drives are disabled write-caching, allowing the problem to be solved.
power supply filter capacitor damage
open the case, if you see power supply filtering
Yung (circuit board that heads the largest capacitance) at the top of muster, then it shows bad capacitor, the screen jitter caused by power failure. After the change of capacitance, you can solve the problem.
recorder
common
Fault A: Install the burner does not start after the computer
First off the computer power supply, check the IDE cable to open the case cover is fully inserted, and to ensure that PIN-1 is the pin position
Properly connected. If the writer shared with other IDE devices one IDE cable, ensure that two devices can not be set to \Set to \
Troubleshooting II: successful use of analog recording, the actual recording but failed
recorder provided by the \\Enough disk space environment conditions such as burning, but can not burn the disc to be tested if there are problems, and writer laser power and disc read-write head matches and so on. In view of this, that \But the real burning fails, the recorder and blank disc compatibility is not good, the following two methods can be used to re-try it:
1. Lower burner write speed, 2X recommended the following;
2. to replace another brand of blank disc to burn operation. There's another reason why this phenomenon is the phenomenon of laser power attenuation caused by read-write head, and if you use the same brand of disc burning, the first time
Were normal, it is likely related to power loss and the head can be sent to the relevant vendor maintenance.
Fault Three: Can not copy the game CD
or some large-scale commercial software
Game software, in the production process, the protection of the CD disc to do so during the process of CD replication, there will not be copied, resulting in the burning process the error occurred, or the copy does not work properly after the case made
Students.
Fault IV: Burning the CD music can not play properly
not all of the audio equipment can be properly read CD-R disc, most CD drive can not be
Normal read the contents of CD-RW disc, so it is best not to use the CD burner to burn music. In addition, you also need to note that burn music CD, CD-DA must comply with the file format.
often
See malfunction five: the process of burning software to burn the disc, sometimes \Error message meant for a buffer underrun. Usually in the burning process, data needs to be burned off by the IDE hard disk interface by
sent to the host, and then transmitted via the IDE interface to the recorder's high-speed cache
(BufferMemory), the last writer to store the data in the
BufferMemory for recording information onto CD-R or CD-RW discs, these actions must be connected
Continuous, absolutely can not be interrupted, if any one part of a problem, it will not work cause the recorder to write data, and a buffer underrun error prompt, and then to disc scrapped. The solution is,
Before the burning need to close some memory-resident programs, such as turn off CD auto insert notification, disable antivirus software, Window task management and task scheduler and the screen saver and more.
often
See malfunction Six: CD burning process, they would often burn burn failed
improve the success rate of the need to maintain a simple system environment, ie turn off the background resident program, it is best to prepare for the recording system, a dedicated
Hard-disk drives, specialized installation and burn-related software. In the burning process, the better the data stored in the hard drive first, made into \The burning process to ensure data transfer
Smooth delivery, need to sort out debris often hard to avoid because files can not be transmitted properly, resulting in the recording error interrupt, can perform \Plate finishing. In addition, in the burning process, do not run other programs, even the mouse and keyboard is not going to touch lightly. Best not to burn the use of computer and other computer networking,
designer handbags sale, in the burning process, if the system management
Members send messages to the machine, will affect the burn effect, In addition, the LAN, do not use resource sharing, if the burning process, the other users to read the local hard disk, can cause interruptions or failure of the recording. In addition to
, But also pay attention to the heat dissipation problem recorder, sound recorder will heat conditions, a stable work environment, if for a continuous recorder, burner heat is too high, you can turn off the computer, such as temperature decreased, following a later
Continued burning. Built-in recorder for the best in the chassis with extra cooling fan. External recording confidential attention to dust, moisture, so as to avoid laser to read and write is not normal.
seven common faults: use of
EasyCDPro recording the directory name in Chinese is not recognized in the use of EasyCDPro burn
Chinese file name, they can select the option in the file name Romeo, you can
To support up to 128-bit file
name, that is 64 characters in the file name of the. In addition, WinonCD, Nero, DirectCD2.x so the Chinese can be a good support long file names,
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