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328139 2010 年 07 月 18 日 10:12 Reading (loading. ..) Comments (2) 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: page manual processing of malicious code
20: Common Faults and Solutions integrated sound card
21: USB storage device does not recognize
22: black failure
23: WINDOWS blue screen code lookup tables
24: WINDOWS Error Code Complete
25: BIOS self-test and boot failure problems are related to the following breakdown
Quick and solve the problem
computer malfunction that appears 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 pinpoint the reasons for its failure 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 if we look carefully, conscientiously sum up, we can still have some computer failures of the law and treatment approaches. In this pamphlet, we will some of the most common and most typical computer fault diagnosis, maintenance methods to show you, through it, you'll find - ways to solve computer failure on your side, simple, but effective!
one motherboard
board is a key component of the computer, the computer plays a vital role. 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.
a common fault: boot without display
computer boots no display, the first thing to check is a BIOS. Motherboard BIOS, the hardware store important data, while the motherboard BIOS is part of the more vulnerable, 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, cause a system failure 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, so 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 usually near the lithium battery, the default location is generally 1,2 short, just short of his conversion to jump a few seconds for the 2,3 to solve the problem, the old motherboard for the past can not be found should the user to the jumper, just remove the battery, enter the CMOS settings to be displayed after the boot off, 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 motherboards do 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 pay more attention.
motherboard BIOS is damaged for the failure, we can plug in the ISA card to see whether the display (If prompted,
kobe iv shoes, can prompt steps below.), if not the boot screen, you can own a Automatic Updates BIOS floppy disk, reload the BIOS, but some motherboard BIOS is damaged, the floppy drive did not work this time, try using hot method to solve (I have tried, as long as the BIOS the same, at the same level The motherboard can be successful writer..) However, in addition need to use the same BIOS hot things, some components may cause damage to the motherboard, so a 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 due to insufficient battery voltage caused by the motherboard, which can be replaced, but some board battery replacement also can not solve the problem, at this time There are two possibilities:
1. motherboard circuit problems, which are looking for professional service;
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 saved.
Fault Three: In Windows, install the motherboard driver CD-ROM drive read the disk after a crash or slow down the phenomenon
in some no-name motherboard sometimes this kind of phenomenon, the motherboard driver Bahrain, can not restart the computer into 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: Install the Windows or start Windows when the mouse is not available
software such failure occurred because the error is generally caused by the CMOS settings. Power management settings in the CMOS 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 than items can be interrupted.
five common faults: frequent computer crashes, during the CMOS settings will appear the phenomenon of death
Dead phenomenon happened in the CMOS, usually the motherboard or CPU have problems, should the press law does not resolve the fault, it can only replace 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 is not good enough for the motherboard heat caused by 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 the failure, 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: board COM port or parallel port, IDE port failure
such failures occur because the user is generally related to hardware, caused by hot plug, then the user can use the multi-function card instead, but must be in place before the ban comes in the COM port on the motherboard and the parallel port (some motherboards with IDE port for proper use should be prohibited).
graphics
a common fault: boot without display
Such failures are generally due to poor contact with the motherboard or graphics slot motherboard causing 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 inserted in 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).
Fault Two: 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, then drive in Windows to update the
program.
Fault 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 fault
3. In some software to run when the 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, such phenomena There is usually due to too close to the magnetic properties of the objects caused by magnetized may also cause the display appears deflection phenomenon.
four common faults: crash
generally more common in the recurrence of such failure is not compatible with the motherboard and graphics card or motherboard and graphics card is bad; graphics card is not compatible with other expansion cards can also cause crashes.
five common faults: the screen abnormal noise or pattern
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.
Troubleshooting Six: graphics card driver is missing
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 is not compatible with the motherboard, 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 driver to load, but the graphics drivers loaded 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 the registry 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 for the Click the sound icon bottom right corner of the screen (small loudspeaker), appear to adjust the volume slider below the
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
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.
two common faults: excessive noise from the sound card. 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 is much smaller. 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 list box. If you have installed the Windows driver that comes with the optional Installation. Then insert the disk or CD-ROM with sound card, load the driver provided by the manufacturer.
Fault Three: Sound can not
1. to make use of a new driver or alternative procedures. 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 reload delete will repeat this, and can not use the Here I reveal a secret detached trick: Go to Win9xinfother directory, the *. inf file on the sound card, delete all and restart manually after installation, this was one hundred percent efficacious, have saved countless lives ... ... of course, sound card, change up table can 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 hardware?
Troubleshooting four: Play CD silent
1. completely silent. With Windows 98's Using a 4-pin CD-ROM audio cable to connect the analog audio output and CD-in on the card 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 only one interface or sound card and audio cable for each interface does not match the wiring had to change the order of the audio line, usually only one of two lines of the change can be.
five common faults: PCI sound card appears sonic boom
PCI graphics card
generally because technology caused by hanging Bus Master PCI bus hard disk read and write, mouse and other operations to enlarge the background noise's sake
. Solution: Turn off the Bus Master PCI card features into AGP graphics card, sound card for the PCI slot.
six common faults: not the normal recording
first check if 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
seven common faults: Can not Play Wav Music, Midi Music
not Play Wav music phenomenon is rare, often due to >
1. Early ISA sound card may be due to the 16-bit mode is not compatible with 32-bit mode cause MIDI playback is not 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 abnormal
Some 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 plugged into the AGP slot, near the ISA slot that several PCI slots. 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. ATX motherboard in the two next to AGP is the PCI-1 PCI 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, the problem would be created.
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?
a common fault: boot without 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 position to solve the problem (Do not use alcohol and other cleaning), there is memory corruption or a problem with the motherboard memory slot can also cause such failures.
memory causes the boot no display failure, the host speaker beep usually for a long time (for the Award Bios is concerned).
Troubleshooting II: Windows Registry damage often for no reason, prompted for a user to recover
such as memory failures are generally caused by poor quality, it is difficult to repair, replace only one way.
Troubleshooting
three: 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 to set the reduction in CMOS to see whether the memory read 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, or , the only way to use the same type of memory. 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: memory to increase system resources, but decreased after the
such phenomena are generally due to causes not compatible with the motherboard and memory, the memory is common in high-frequency memory for some do not support this frequency of memory on the motherboard, such a failure when you try to COMS memory speed will be set too low a little try.
six common faults: some software often runs out of memory prompts
This phenomenon is due to general lack of free space causes the system tray, you can delete some useless files, leaving some space can be generally maintained at
300M or so.
Fault Seven: Install Windows to boot from the hard disk space to detect when prompted memory
such failures are generally due to the user in the config.sys file, add 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,
cheap lebron shoes, many scrap the drive there is still much of value, just click on it a little maintenance. This often do not have any profound knowledge of radio, do not need anything too complicated to use the repair tools and materials. Just look carefully and with reference to the implementation of the following symptoms of some troubleshooting, I believe you can restore the old drive or the old
a common failure: hard disk drive light is always flashing at 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 a single IDE interface.
Fault Two: In the Windows environment to operate on the CD-ROM to display
Obviously, Windows 32-bit disk access on CD-ROM to a certain extent. Most CD-ROM connected to the IDE hard disk interface is not supported
Windows 32-bit disk access, the Windows generated an internal error crash. After entering Windows, the check box is closed, the confirm, then restart Windows, in Windows, and then access the CD-ROM will not go into error.
Fault Three: drive can not properly read the disk, displayed on the screen: also read the disk several times and out of boxes, but soon not read the disk.
In this case, the virus should be detected by antivirus software on the machine to check anti-virus, the virus can not find the file if the editor to open C under the root directory of the CONFIG.SYS polish driver and drivers are being destroyed, and for processing, but also with a text editing software View No issues were found, removable drive maintenance.
Troubleshooting four: drive when using the read-write errors or diskless tips
This phenomenon is most
changer If we can not operate in place to drive the cause of the failure. All operations on the drive will have to wait for the disc light is like the bit before the operation. DVD playback when the time should be transferred to disk and back to zero, so that can avoid these errors.
five common faults: when playing VCD movies pause or broken screen phenomenon
check the AUTOEXEC.BAT file If so, you should put
SMARTDRV statement prior to the MSCDEX.EXE; Party not to use high-speed CD-ROM rushed process to SMARTDRV.EXE / U; failure can be ruled out.
Troubleshooting Six: CD-ROM in the read data, read and sometimes not, and the longer the time to read the disk
not read the disk drive hardware failure mainly concentrated in the laser head components, and can be divided into two kinds: one is caused by using long laser tube of the old
; the other is the surface of photocell dirty dirty lens or laser tube and the displacement of 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. Hooded jacket when the laser head can see the focusing 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 installed in the hole just below the lens in. Thin wire with a stick wrapped in cotton, a small amount of distilled water and wipe (not with alcohol wipe the surface of optical lens tube and focus), and to see whether the level of the lens on the laser tube is suspended, it shall be adjusted appropriately. Thus,
nba basketball shoes, the cleaning is completed.
adjust the laser power. Side of the laser head assembly screws are a little like a cross 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 If that is not plugged in, it will be 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 settings CD-ROM, and if there is an error, change it to.
Mouse
failure analysis and maintenance of the mouse is relatively simple, most of the fault is bad interface or buttons,
zoom kobe v, disconnection, mechanical positioning system dirty. 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 fault: 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, 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 caused by the long time due to the aging, and 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
decrease the flexibility of the mouse, the mouse pointer is not as arbitrary, 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 transmission failure caused by excessive dirt, 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,
lebron james vii, remove the mouse ball to roll, with a clean cloth dipped in mild 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. After all the dirt will be removed, the flexibility of the mouse ever resume.
three common faults: failure of the mouse button
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 decline in the use of capacity to rebound. Open the mouse, the mouse buttons below the moderate thickness of glue a piece of 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 remove the middle of that one key to the 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.
keyboard
keyboard 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 holes and metal oxide and 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, adjustment shall be entered many times before - one or two characters, and some
keys such as cursor keys by After not following up continuously moving the cursor on the screen, keyboard, other characters can not be entered at this time, need to press again to bounce
.
this failure as a keyboard 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, This occurred because the keyboard or use a new keyboard soon. 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, because this occurred 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 keycap and the key causes the body shell stuck in the made, its size is equal to or slightly larger than the key body size, and in the open position by a rod through the rod allows free passage of ammonium square hole, in accordance with its set of poles, plug keycap; with this pad keycap and the key piece to prevent the body stuck, 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 stretching to restore flexibility to reset the spring; Remove the key to the restoration of shrapnel. By removing the shrapnel and reduce the resistance by rod bounce, so that the fault button has been restored.
Troubleshooting II: Some characters can not enter.
if only one key character can not enter, it may be the key failure or solder joints 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 shavings oxidation To be measured along the printing line, paragraph by paragraph, to find fault re-welding; Ruoyin oxidized metal hole failure, oxide layer can be cleaned and re-weld; if caused by the metal hole completely off circuit, it can also Add welding wire to connect.
Fault Three: If there are multiple neither in the same column, not the keys on the same line 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 to find fault device Weld point, and then repair it.
Fault IV: keyboard input is inconsistent with the character screen.
such failure may be due to the phenomenon of short circuit caused 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.
five common faults: press a key generating 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 the phenomenon of a number of other characters; if the one with the Enter key, the character will have a bounce into the system and can not be the final phenomenon Check logic circuit chip with an oscilloscope to find fault with the model after the replacement of the chip of the new chips, troubleshooting.
Modem
a common fault: 56K of the Modem is not up to 56K. This problem can be considered from the following areas:
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; another extension Internet use will also affect Internet 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 disconnects often, the problem may have dropped the following reasons:
1. Phone line quality is not good;
2. If the data terminal ready (DTR) signal Modem is not valid over the duration of the default values, can cause dropped calls;
3. If your phone has a
break;
4. In addition, Modem their quality and compatibility problems between different Modem Modem is caused by a common cause of dropped calls.
Troubleshooting
three: Modem no dial tone
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 set Modem no dial tone, and ATM1 set to Modem Dial-up connection from a dial tone . Select the volume you can change the following instructions, ATL0 (low volume), ATL1 (low volume), ATL2 (in volume), ATL3 (high volume).
Troubleshooting four: Fax speeds up to less than 14400
Modem maximum fax rate is 14400, and send a fax rate of only 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 will reach 14,400.
five common faults: Modem can not dial or connect
if not installed correctly on your Modem, communication will not 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 check if the file loads the correct Windows98.
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 file size check
and date are the same.
(2) confirm the System.ini file in the following lines: [boot] Comm.drv = Comm.drv [386enh] device =* vcd
(3) in the New Hardware Note: Windows98 does not load in
System.ini 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 in at the VMM32.VXD.
2.
test the modem's configuration in the Verify that your modem manufacturer and model, run the If your modem does not appear in the list of installed modems
, click the If the manufacturer and the type is not correct, and not in the list of your equipment manufacturer and type, try to use Click Conflict in the exclusion list, remove all the modem entries.
3. Check that the modem is in a state of
can use the > of the
4.
check the correctness of the port in the The port is correct. If not, please select the correct port, and then click
5. confirm the serial I / O address and IRQ settings are correct
in , and then click
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 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 check the current port settings such as baud rate, data bits, stop bits, and parity.
7.
test the modem baud rate in the rate is set to the correct rate.
Note: If you call the main system to set the baud rate in the original can not communicate, then reduce the baud rate can sometimes resolve 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 will often be some failures, how to address 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: printing 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 the 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 the need to carefully), put the nozzle in warm water soak for a while, note that the circuit boards must not some are soaked in water, or else, stained with absorbent paper to take away the water droplets, and then washed several nozzles installed on it.
Fault Two: Replace the new cartridge, the printer in the boot panel on the
normal circumstances, when the ink has run out of time Replacement ink cartridges, the printer panel on the cartridges. As 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 printer ink capacity of the measurement 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. After installing the cartridge, so that charge printer ink, ink filling process is finished, troubleshooting.
three common faults: soft plug nozzle handling
soft plug blocking means that for various reasons on 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 the head of empty cartridge 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 carried out in a clean environment, will add a good cleaning fluid cartridge according to the normal operation of the printer 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, then put on a good cartridge for normal use.
Troubleshooting four: Clean the pump nozzle in the printer troubleshooting
something wrong with the printer is more wash pump nozzle, and it is one of the main factors causing plug. Printer, the printer head cleaning 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 nozzles 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 of the coagulum increases. If the user is not on its regular inspection or cleaning, it will keep your print head out of some failure.
this part of the conservation method: Remove the printer's top cover away 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 to clean them, this will cause 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.
five common faults: normal and printing ink line detection accuracy was significantly worse treatment
inkjet printer in use due to use of the frequency and time and print accuracy become worse. Inkjet print head 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, and now the printing precision variation, you can use the method of replacement cartridges to try, if for a few cartridges, print output results are the same, then you will this printer's nozzle to be replaced the. If there is a change after the replacement ink cartridges, ink cartridges that you may have used poor quality non-original ink.
If the printer is new, the printed results can not satisfy you, often the print line is not clear, text skew graphics, text, graphics outside the boundaries blurred, print out the ink control synchronization accuracy, which means you may buy the ink cartridges or use of false non-original products, should be its immediate replacement.
Troubleshooting six: walking car meet dislocation treatment
inkjet printers walking track car alloy of copper powder by two sets of round steel shaft with a sophisticated combination of sliding completed. While walking there is a small car designed and installed to supplement the shaft lubricating oil Felt, but the environment we live in the dust everywhere, a long time, due to air oxidation, dust the surface of the destruction of the axis of the aging oil failure, then if it continues to use the printer, will be due to copper sleeve axis and the increased friction caused by car travel dislocation, can not be used until the collision caused the front.
solution is: Once this failure should immediately turn off the printer, did 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 the best.
meet another car because of damage caused by the device. Car parking spaces above the printer have a photoelectric sensor, which is available to print to the printer board reset signal the importance of car 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 in 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.
a common fault: 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 wet weather, damp inside the monitor'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 near the tube socket. 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. To wait several minutes to appear on the screen.
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 remove 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, we should first find a small piece of sandpaper, very carefully, after the end of the tube 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.
three common faults: display screen, there will always be 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.
four common faults: display Huaping.
This is the video card
caused many problems. 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. 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.
if it is damaged or display graphics and other causes not break signal to the monitor, the monitor light flashing constantly prompted no signal is received. If the resolution is set too high, more than the maximum resolution the display will 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.
display jitter reasons
monitor refresh rate is set too low
set when the monitor refresh rate lower than 75Hz, the screen often appears jitter, flicker, 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 supply 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 screen will appear in particular the phenomenon of jitter. Begin to age the computer when the power supply, are likely to cause the same problem.
speakers too close to put enough away from the monitor
speaker's magnetic field effect will interfere with 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
screen display, such as: the 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.
display card bad
reseat video card, the fault can be obtained ruled out.
WIN95/98 system write cache after the cause
such as belonging to this reason, in the Control Panel - System - Performance - File System - Troubleshooting disable all drives in write-caching, allowing the problem to be solved.
power supply filter capacitor damage
open the case, if you see the power supply filter capacitor (on the 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.
a common fault recorder
: Installation can not start the computer after burner
First off the computer power supply, check the IDE cable to open the case cover is fully inserted, and to ensure that PIN-1 position of the pins connected correctly. If the writer shared with other IDE devices one IDE cable, ensure that two devices can not be set to SL
Troubleshooting II: successful use of analog recording, the actual recording but failed
recorder provided by the normal, hard disk speed is fast enough, enough free 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 write speed machine, it is recommended 2X 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
some large commercial software or 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 copy can not be later normal to happen.
Troubleshooting four: can not burn CD's play properly
not all of the audio equipment can be properly read CD-R discs, most of the normal CD drive can not read the contents of CD-RW disc, so it is best not to use the CD burner to burn music. In addition,
kobe v shoes, you also need to note that burn music CD, CD-DA must comply with the file format.
five common faults: the process of burning software to burn the disc, sometimes
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 in the cache (BufferMemory), the last writer in the store in
BufferMemory data for recording information onto CD-R or CD-RW discs, these actions must be continuous, must not interrupt, if any one part of a problem, will not work cause the recorder to write data, and a buffer due out in error, 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.
Troubleshooting Six: CD burning process, they would often burn fail
improve the success rate of burning 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 drive, specifically related to software installation and burning. In the burning process, the better the data stored on the hard drive first, made into The burning process in order to ensure smooth data transfer, you need to sort out debris often hard to avoid not work because the file transfer, the error interruption caused by the burning, you can perform . 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, in the burning process, if the system administrator to send messages to the machine, will affect the burn effect, In addition, the LAN, do not use resource sharing, if the burning process, other users to read the local hard disk, can cause interruptions or failure of the recording. In addition, the recorder should note that the heat dissipation problem, good heat dissipation will give a stable burner work environment, if for a continuous recorder, burner heat is too high, you can turn off the computer, such as the temperature continues to decrease at a later 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 EasyCDPro recorder does not recognize the Chinese name of the directory
burning in the use of EasyCDPro Chinese file name, they can select the option in the file name Romeo, can support up to 128-bit file
name, that is 64 characters in the file name of the. In addition, WinonCD, Nero, DirectCD2.x so can better support long file names in Chinese.
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