( Daquan will apologize not seeing ... )
1: motherboard failure
2: Graphics fault
3: sound card trouble
4: hard disk failure
5: memory failure
6: drive failure
7: mouse malfunction
8: Keyboard failure
9: MODEM failure
10: printer problems
11: Display fault
12: recorder breakdown
13: Scanner failure
14: monitor jitter because
15: Troubleshooting BIOS settings
16: Restart the computer failure
17: CPU utilization is too high to resolve the problem
18: Discovery of hard disk damage and repair
19: malicious code sheet manual treatment
20: Common Faults and Solutions integrated sound card
21: USB cache device does not recognize
22: black failure
23: WINDOWS blue screen code lookup tables
24: WINDOWS error code Daquan
25: BIOS self-test and boot failure problems are related to the following collapse
Quick and problem-solving
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 needlepoint the reasons for its failure is virtually impossible. So it is that if we encounter when the computer failure, completely helpless out? This is not so, the computer-generated however 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 reaches. 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 motherboard
key component of the whole 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 no display no display
microprocessor boots, the first entity apt check is a BIOS. Motherboard BIOS, the hardware store important file, while the motherboard BIOS namely portion of the more vulnerable, easily damaged, once damaged it ambition occasion the system tin not flee, the recurrence of such failures are generally deserving apt the motherboard BIOS abuse caused by CIH virus (of course not rule out the motherboard itself, cause a system failure can no scamper..) General BIOS hard drive later the virus devastated the data ambition be lost, so we can discover the hard disk the data is intact to determine if 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, at the peak of the clear CMOS to be addressed. Clear CMOS jumper on the motherboard usually close 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 elapse 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 unload purposes.
3. motherboard does not acknowledge 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 array 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.
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 the boot screen, you can own Automatic Updates BIOS to do a 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, at the peak of the BIOS the same at the same level of motherboards can be successful author..) However, in addition need to use the same BIOS hot asset, 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 vendknow next to nothing oflution).
Troubleshooting II: CMOS settings can not be saved
such failures are generally due to not enough 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 because of the error will jump on the motherboard CMOS line is set to clear the option,
GHD Red Straighteners, 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 deduct from the phenomenon
in some no-name motherboard sometimes such a phenomenon, motherboard drivers programs Bahrain, can not restart the computer into 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: Install the Windows or start Windows when the mouse is not available
recurrence of such failures in the software causes 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: prevalent computer 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 statute can not troubleshooting, it can merely replace the motherboard or CPU.
such failures usually occur because of 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 break nigh the motherboard components, found that the temperature is very peppery. After replacing the high-power flare, crash failures can be decided. Cache problem for the failure, we can enter the CMOS setup, the Cache can repair the problem after the ban, of course, Cache forbid would naturally be an impact above the speed.
Troubleshooting Six: board COM port or collateral 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 in lieu must be prohibited before the COM port on the motherboard comes with the parallel port (some motherboards with IDE ports to be banned for appropriate use.)
graphics
a common fault: boot no display
such failures are generally due to penniless adjoin with the motherboard or graphics slot motherboard causing problems. Fjust aboutme integrated graphics motherboard, chief memory if the shared memory, you absence 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 secure 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 secure 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.
three common fault: 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 mistake
3. In Some software to run while the color is not regular, usually common in older machines, there is a check in the BIOS, the color of the alternative to open it to
4. Graphics damage;
5. display is magnetized Such phenomenon is generally due to magnetic objects can be caused by too close, magnetized may also cause the display appears deflection phenomenon.
Fault IV: Death
the recurrence of such failures are generally more common in non-compatible motherboards and graphics cards or motherboards and graphics cards bad; graphics card is not compatible with other expansion cards can also cause crashes.
five common faults: the screen pattern of abnormal noise or
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.
six common faults: lost
graphics driver graphics driver to load and run automatically after a period of loss of driver, such failures are generally of poor quality due to video card or graphics card and motherboard do not compatible, making the graphics card temperature is too high, causing the system to run erratic 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 fraught 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 is Click the sound icon base right edge of the screen (small loudspeaker), arise to accommodate the volume slider below the
2. soundcard collide with other cards. PnP card solution is used to adjust system resources so that all cards without afflicting 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 agreeable, need to update the driver.
4. one aisle silent. Check the sound card to the audio speaker cable is loosened.
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 outdoor 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 accessible adjustment.
2. Active Speaker Speaker input connected to the sound card output. For the lively 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 determination, the plant default is often Speaker, so the jumper to disconnect the sound card.
3. Windows comes with a wrong driver. Sound card driver is installed, you should choose 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 contractor.
Fault 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, anything is normal. Then upgrade to Windows Me, not normal and back with Windows 2000 (full edition) 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 Here I reveal a secret loosened trick: Go to Win9xinfother directory, the *. inf file on the sound card, delete all and restart manually after installation, this was one hundred percentage effective, 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 Windows quest for new 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 almost 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 just aboutund 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
sonic rumble occurs generally because PCI video card technology caused by Bus Master PCI bus hung on the hard disk peruse and write, mouse movements and additional operations to augment the backdrop
noise's sake. Solution: Turn off the Bus Master PCI card traits 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 loudspeaker jack into the other, and second, double-click the little speaker, select list see if the settings are correct. Then in the If the
seven common faults: Can not Play Wav's, Midi Wav Music
can not play music phenomenon is rare, often due to One can disable; 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 the normal, by installing Software wave table
way should resolve
2. Today, maximum of the fashionable PCI sound card with wavetable synthesis technology, if the MIDI playback is not part of it is presumable for you do not load the proper sound wag table 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 users do not normally reflected in the sound card driver installation process everything is normal, no device conflicts occur, but the following is not in WIN98 audible, 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 treatise which PCI slot. Thermal attentions fhardly everme friends, like to reside 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 afterward to AGP is the PCI-1 PCI and PCI-2 (the opposite in some ATX motherboard, near 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 established.
memory
computer memory is one of the most important parts, and its role in doubt, then the memory what are the most common faults it?
a common fault: no display
boot memory because the recurrence of such failures are generally due to memory with the motherboard memory slot is bad cause, at a time tarnish his finger back and along with the eraser rank 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 a failure.
memories causes the boot no display failure, the host spokesman beep usually because a long time (because the Award Bios is cared).
Troubleshooting II: Windows Registry damage often for no reason, prompted for a user to revive
such as 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 memory caused by poor quality, common in high-frequency memory for Some do not support this frequency of memory on the motherboard, you can try to reduce the memory within the CMOS settings to see whether the 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 option of several different memory chips, due to the memory of different speeds to produce a time feud resulting in decease
machine, which can reduce the memory speed CMOS settings to be resolved within, otherwise, the only way to use the same type of memory. Another feasibility is that memory is not compatible with the motherboard,
GHD, these phenomena generally rare, the other is also possible that poor contact with the motherboard memory computer irregular crashes caused. 01
five common faults: memories to amplify system resources, but decreased after the
such phenomena are generally not compatible with the motherboard and memory caused the high frequency of memory commonly found in memory for some does not support this frequency of memory on the motherboard, such a failure when you try to COMS memory speed will be set too low point try.
six common faults: some software often runs out of memory prompts
This phenomenon is commonly due to inadequate system disk space left, you can delete some needless files, leaving some space namely is can be generally maintained by
300M or so.
Fault Seven: Install Windows to boot from the hard drive to detect disk space, memory
prompted such failures are generally due to the consumer in the config.sys file, add the emm386.exe file, at a time it masked problems can be solved. CD-ROM drive is
computer hardware components in one of the shortest life. In truth, many scrap the drive there is still much of value, just click on it a little maintenance. This often do not have any profound perception of radio, do not need everything too complex to use the repair tools and matters. Just look carefully and with reference to the implementation of the following symptoms of some troubleshooting, I believe you can reinstate the old drive or the old
common fault I: drive is always working hard disk light flashes
This is an fantasy, 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 element can be chained to a single IDE interface.
Fault Two: In the Windows environment to operate on the CD-ROM to display ROM to a certain amplitude. Most CD-ROM connected to IDE hard drive interface does not support
Windows 32-bit disk way, 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: ?
In this circumstance, the virus ought 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 catalogue of the CONFIG.SYS if they put up light drivers and drivers are broken, and processing, but also with a text amending software View No issues were base more than two steps, removable drive maintenance.
Troubleshooting four: drive to use when prompted to read and write errors or diskless
this phenomenon mostly in the changer Shihai No place to operate on the drive caused by the fault. for all the operations drive will need to await for the CD like the morsel when the indicator shows the operation can be conducted. In Play DVD when the time should also be transferred to naught and then changer, which can avoid the above error.
five common faults: when playing VCD movies cease or broken screen phenomenon
check the AUTOEXEC.BAT file on MSCDEX.EXE after. If so, you should put
SMARTDRV expression 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 drive
not read the disk hardware failure focused on the laser head assembly, and can be divided into two kinds: one is caused by using long laser tube of the old
; the other is the photocell lens surface is sordid or polluted and displacement of the laser tube deformation. So the power to adjust the laser tube, the need of optical lens tube and the laser tube cleaning.
photoelectric tubes and focusing lens cleaning method is: Disconnect the laser head assembly, a flat cable, memorize the intention of the laser head groups apart pieces. then see hooded jacket laser focusing lens, remove the jacket will find that focusing lens from the four nice copper wire connected to the focus, tracing the coil, the optical tube assembly is installed in the bottom of the lens holes in the. with a fine wire coated in clean cotton stick a small value of distilled water (not optical tube with an alcohol wipe and focusing lens surface), 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 side of the laser head assembly screws are a little favor a cross potentiometer. the use of color and write the initial position, generally the first clockwise 5 ° ~ 10 °, installed No re-test machine swivel 5 ° ~ 10 °, until a smooth read the disk. Note must not rotate too much, so many power and burned photocell.
7 common faults: boot drive not detected or observation failure
This may be due to drive data cable connector is lax, damaged or the hard disk drive data wire jumper settings error caused by such problems encountered when
waiting, we should first check the CD-ROM The data cable connector is loose, and if found not plugged in, it will be re-plugged, plug firm. If this does not resolve the fault, we recruited a new data can be put on line to try. this time if the fault still exist, we need to check the jumper settings CD-ROM, and if there is an error, change it to.
mouse mouse
failure analysis and maintenance is relatively simple, most of the fault for the interface or key contacts bad, broken, dirty mechanical positioning system. a few 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 damage to the bulk.
A common fault: can not find the mouse
1. mouse completely damaged and need replacement mouse.
2. connected to the host serial port or mouse PS / 2 oral exposure bad, carefully take a good line, re- can start.
3. motherboard reg code or PS / 2 ports from getting damaged, this situation is rare, if this is the case, had to replace a motherboard or use a serial port on a multifunction card.
4 . mouse line is bad, this is the most common. bad points more in the mouse inside the cable and circuit board connections. fault at the peak of not another PS / 2 joints, the general is not tough 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 a position that is bad inside the mouse cable is long because of the time result caused by aging, such failure is often laborious to find, replace the mouse is the fastest solution.
two common faults: the mouse can be shown, but can not push
the flexibility of the mouse down, not as arbitrary pointer, but slow, inexact positioning, or simply could not move. This is chiefly due to mechanical positioning the mouse scrolling axis in the collection of transmission failure caused by extravagant sand, rolling does not cause malleable. maintenance of the inner focus on the mouse X axis and Y axis on the transmission machinery. The solution is to glue the pellet to open the lock pieces, remove the mouse ball to roll, with a clean napkin submerged in mild detergent on plastic cleaning the ball, the friction shaft can be cleaned with liquor. The best area in the axis of drop a few drops of sewing machine oil, but it have to be detailed not to flow to the friction surface and the suture on the grid encoder. will all the filth removed, the flexibility of the mouse ever resume.
three common faults: 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 distant away or click on the switch after a period of reduced aptitude to use the bounce. open the mouse, the mouse buttons below the gentle thickness of glue a piece of plastic film, the thickness is resolute 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 movie, especially the long-term use of plastic is easily broken reed. If a three-button mouse, you can a key that will remove the medium to the crisis. If it is good quality original brand-name mouse, you can solder, the open mini 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 multi-faceted. There is bad failure, mechanical failure has its own keys, as well as logic circuit fault, Xu Han, disloyal welding, sealing off and the metal hole oxidation failure. repair the fault phenomena according to the analysis of different judgments, find out the cause of the malfunction, make the appropriate repairs.
a mutual fault: some of the keys above the keyboard, such for space key, the Enter key does not go, sometimes, adjustment shall be entered many times before - 1 alternatively 2 characters, and some
keys such as cursor up key is pressed longer, continuously moving the cursor on the screen, this time the keyboard other characters can not enter, need to press again to gambol
.
this failure as a keyboard new keyboard, the keyboard is also sometimes the card key failure occurred. there keyboard card key phenomenon caused by the following two reasons: one reason is keycap insert the following position offset column, after pressing the button makes the keycap the body can not bounce a result of shell stuck the card key, and for this reason occurred in or near the new keyboard on the keyboard. Another reason is the key long-term use, the return spring bounce becomes poor, shrapnel and press the pry friction 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 press the lever press. If the projectile by not up or fatigue, is caused by the second, otherwise the first causes. If the keycap and the key causes the body shell stuck in the put a gasket between the body, some of the pads can be slightly harder plastic (such as discarded diskette jacket) made of, its size is equal to or slightly larger than the key to body size, and press the lever in the position to open a can via the ammonium Rod freely through the square hole, in accordance with its set of poles, plug keycap; with the keycap and the key pad to stop the body stuck, you can fix problems button; if the spring fatigue, resistance to become large shrapnel card key causes failure, then the body can be special key to open, a little stress return spring to restore elasticity; remove the shrapnel will be key to the restoration. by removing the shrapnel and reduce the resistance by rod bounce to obtain the fault button the resumption.
Fault Two: Some characters can not enter.
if I were you one key character can not enter, it may be the key failure or joints Weld. inspection, in consensus with the the method described upon, open the key
disk, measured with a multimeter resistance silhouette of the on-off status of contacts. If the key does not forever turn on when pressed, then clasp reed labor or bad, in need of repair or replacement; if key reception off when the contacts under normal,
GHD NZ, that may be due to cold weld mutual, sealing off holes or gold scrap due to oxidation can be measured by the printing line, paragraph by paragraph, to find fault re-welding; Ruoyin metal hole oxidation and failure can be clean oxide layer, and then re-weld; if caused by the metal chasm entirely off circuit, it can guide to connect annexed welding.
three common faults: if necessary in the same column number, not in the same line can not enter the key.
line or lines may be lines somewhere in the column circuit, or logic gate circuits may be malfunctioning. this time available for testing 100MHz high frequency oscilloscope to find the device cold solder joint failure point, and then repair.
four common faults: keyboard input is incongruous with the character screen.
such failure may be due to the phenomenon of short circuit caused the board, and its rendition is The key is shown as the same as the other characters, this time can be amounted multimeter or oscilloscope to determine the fault repair after.
five common faults: press a key produce a string of multiple characters, or bounce when the character key.
This phenomenon is caused by a logic circuit failure. the first characters of a column is selected, if the enter key of a row without a column, may generate 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, with an oscilloscope checking logic circuit piece, the chip to find fault with the model after the replacement of the new chips, troubleshooting.
Modem
A common failure: 56K of the Modem is not up to 56K. This problem can be from the following considerations:
1. 56Kmodem actual maximum speed can only reach 53K just about, to think various effects, 56Kmodem speed generally between 45-53K.
2. Modem tel 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 fewer than 56K; Another use of the Internet extension will also affect Internet speed.
3. not installed the correct driver.
4. and the ISP uses different protocol, only your Modem and your ISP accession is the same, Modem will meet the criterion 56K.
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
.
common Failure II: Modem disconnects often, the problem may have dropped the following reasons:
1. Phone line quality is not good;
2. If the data terminal prepared (DTR) signal is invalid duration Modem settings than the default, it will lead to dropped calls;
3. If your phone has a open;
4. In addition, Modem their quality and compatibility problems between alter Modem Modem is caused by a common cause of dropped cries.
three common faults: Modem no dial intonation
time when the Internet late at night when the dial tone in order not to influence others nap, through the appropriate AT command to change: You can use the ATM0 set Modem no dial tone, and ATM1 set to Modem Dial-up linkage from a dial tone . For the alternative of the volume you can change the following instructions, ATL0 (low volume), ATL1 (low volume), ATL2 (in volume), ATL3 (high volume).
four common faults: Fax speeds up to non- 14400
Modem to the 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, and only use the rate of 14400 or 33600 fax, Modem fax speed will reach 14400.
5 common faults: Modem can not dial or connect
if only 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 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 the file size and date is the same.
(2) validation the System.ini file in the following lines: [boot] Comm.drv = Comm.drv [386enh] device =* vcd
(3) in the Run ini is also not related with the
* VCD file. These files are built in at the VMM32.VXD.
2.
test the modem's configuration in the , click the option, set the maximum baud rate modem support, and click .
4.
check the correctness of the port in the br> listed port is correct. If not, please select the correct port, and then click The current resource settings, see the modem's handbook to find the correct settings in the collide with other devices, click the
use the same kind of IRQ, and in most computers can not use. COM2 and COM4 have the same problem. If possible, change the COM3 and IRQ settings
COM4 port, so they no longer clash. Also , there are some graphics card and COM4 port addresses clash, the conflict if found, use the other ports, or replace your graphics adapter.
6.
test port settings in Double-click experience.
7.
test the modem baud rate in the wave
special rate is set to the correct rate.
Note: If you call the main system in the original set baud rate can not communicate, then reduce the baud rate sometimes may resolve the problem.
printer
in the office, the inkjet printer is then used in a more general one device. inkjet printers due to the use,
GHD IV Styling Set, maintenance, improper operation and other elements will often be some failures, how to residence the concerns of the user. Here we put daily work and treatment of common faults amounted up, we want to aid.
a common fault: printing ink scanty, indistinct handwriting processing, most of the fault is due to the printer does not use or long-term other reasons, resulting in the ink delivery system disorders or nozzle clogging.
exclusion: If the nozzle clogging is not very mighty, then the implementation of the printer directly to the cleaning operation. If no effect after repeated washing, you can triumph the cartridge (one for non-printer cartridge nozzle, the nozzle need to conquer, but the need to carefully), put the nozzle in lukewarm water drench for a while, attention must not be part of the circuit board is also inundated in water, or another , tainted with digestive paper to take away the water droplets,
GHD Green Straighteners, and then washed several times fitted with nozzles on it.
Fault Two: Replace the fashionable cartridge, the printer in the boot panel on the processing
normal circumstances, when the ink has run out of time It is feasible cartridge not fitted properly, the other may be won in the off state, self-old cartridge, replace with a new cartridge. as to replace the print cartridge, printer ink will dictate the ink distribution system, and this process can not be rotated off, so the printer can not detect the re-install the cartridges. In addition, some printer ink capacity of the calculation is the use of electronic counters inside the printer to the calculate (especially in the use of color ink, the statistical ), when the counter reaches a definite value, to determine the printer ink exhausted. The process of replacing the cartridge, the printer will carry out its internal reset the electronic counter, accordingly confirming the installation of a new cartridge.
solution : Turn on the power, the print head moves to the cartridge replacement position. the ink cartridges installed, get the printer to charge the ink, the ink filling process is finished, troubleshooting.
three common faults: soft plug in the nozzle Treatment of soft plug plug
mean for various reasons on the viscosity of the ink in the nozzle due to wreck bigger fault. general use original ink cartridges can be restored after continual washing, but this way too much consume of ink. The easiest access is to use your hands to the head of empty cartridge cleaning. with an vacant cartridge cleaning before it gets inside the cartridge with a needle out of the residual ink as possible, the cleaner the better, then add the cleaning solution ( accessories available in the mall). filling cleaning fluid should be carried out in a clean environment, will add a good cleaning fluid cartridge along to the normal operation of the printer on the machine, and constantly cleaning the printer button at its cleaning. use of the residual ink cleaning fluid mixed with the ink color to print a test light, put on a good cartridge to normal after using a.
Troubleshooting four: Clean the pump nozzle in the printer troubleshooting printer cleaning pump nozzle
go wrong are more, and it is one of the main factors causing plug. printer cleaning pump nozzle print head protection on the determined character. Sprinklers car back to the bit, to clean the pump nozzle from the nozzle to the languid 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. but in substantial use, its performance and wind tightness due to time, the dust and ink remnants in the jaws of the coagulum increases. If the user is not on its regular inspection or cleaning, it will keep your print head out of some trouble.
this part of the maintenance method: Remove the printer's top cover away car, using a needle wash them inhaling pure water, of special note, embedded within the pores of the mouth to fully clean the gasket. In this hope to prompt users , cleaning the parts, do not use ethanol or methanol to clean them, this will cause this component liquefied in the mosaic of the porous gasket deformation. The other thing to advert is that inkjet printers should be kept away from the heat and dust work environment, only a good working environment to ensure the normal use of the machine a long time.
five common faults: normal and printing ink line detection accuracy was significantly worse treatment
inkjet printers will be in use the number of times and the use of time and print accuracy become aggravate. inkjet publish head is also a life. the general head of a new life from the beginning to the end use, if you could not penetrate any fault more smoothly, that is, 20-40 a dosage cartridge life. If your printer has been in use for a long time, and now the printing accuracy variation, you can use the means of replacement cartridges to try, if for a few cartridges, print output results are the same, then you this printer's head will be replaced. If there is a alteration after the replacement ink cartridges, ink cartridges that you may have accustom poor quality non-original ink.
If the printer is new, the printed results can not satisfy you , often the print line is not remove, text graphics skew, text, graphics outside the boundaries blurred, print out the ink control synchronization accuracy, which means you may buy a ######## ink cartridges or use non-original products, should be its instant replacement.
Troubleshooting six: walking car handling
dislocation meet inkjet printer is a hiking trail car alloy of copper powder by the two sets of circular steel shaft with a precision combination of sliding completed . While walking there is a small car designed and installed to complement 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 oil aging The failure, then if it continues to use the printer, will be due to bronze sleeve axis and the additional friction caused by car peregrination dislocation, can not be used until the collision caused the front.
solution is: Once this failure Turn the printer off swiftly,
GHD Hair Straightener, 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 grasp rub back and forth on the spindle. The best is to spindle removed, washed and oiled, so that the best effect.
encounter another motorcar because of damage caused by the apparatus. the printer on top of automobile parking spaces have a photoelectric sensor, which is the main board to the printer print reset signal to provide an important makeup car. This component is too large or damaged due to dust if the printer can not find the car back to the signal due to kick the front, which led to not use the general out of the failure to replace the apparatus.
Display
Display in a long time, a variety of small problems will follow. specialists trust that these small problems to solve is actually very simple, with a couple of eyes can see where the failures.
A common failure: the computer screen of just-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 more in rainy climate, damp inside the monitor's sake. To solve this problem, use damp sand in the edible packaging to string together with cotton thread, and then open the back cover of the monitor will hang in the damp sand the end of CRT tube neck near Block near the pipe. Thus, even in wet climate, it will not appear above the one. 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
. cautiously unplug this perimeter embark, and then welded pipe below the seat, to the electronics store to purchase behind a seat the same tube, tube socket weld and then back to the circuit embark. then do not rush the circuit embark back together, to go first to a small piece of sandpaper, very carefully after the end of the tube protruding pin wipe neat with sandpaper. In particular, disburse attention to needle on the oxide layer, if only neat and quite lustered soon it will relapse. the board back together and you're done.
Fault Three: there is always lingering on the monitor screen clutter interference or lines, and the speaker also has needless ruckus.
This phenomenon is mostly caused by poor power supply interference. If too idle to get comprised, you can replace a new power supply. If there are enough hands to
power, you can also try to replace the power within their own filtering capacitor, which often can be telling; if the outcome is not apparent, you can switch to be replaced
.
four common faults: display Huaping.
this problem more is the video card cause. If it is new for the graphics card, the card may be of poor quality or antagonistic, then there is at present installed the correct driver. If the antique card and added memory, then there may be Added into the memory and the original prototype parameters alter due to memory.
five common faults: display a blank screen.
card if it is damaged or broken monitors and other causes no signal sent to the monitor, the monitor light flashing often reminded no whistle is received. If the resolution is set also tall, more than the maximum resolution the display will appear dark, caustic havoc of the monitor, but immediately the display has conservation feature, when the resolution exceeds the set value is automatically protected. In addition, conflicts can also cause dark hardware.
display jitter causes
display refresh rate is set too cheap
set when the monitor refresh rate below 75Hz, the screen often appears jitter, flicker, the refresh rate properly raised, such as the set above 85Hz, the phenomenon of screen jitter usually does not happen repeatedly.
power transformer from the chassis too close to the monitor and work
power transformer electromagnetic interference will cause a larger, causing screen jitter. away from the power transformer chassis and the monitor 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 the computer poor or the power supply capacity can not keep up the circuit, when the system is busy, the display screen will appear of special note the phenomenon of jitter. the computer when the power supply begin to old, are likely to cause the same problem.
put enough away from the speaker monitor speakers too close to the magnetic field effect
interfere with the normal operation of the monithardly ever that the display screen generated string of color, such as jitter and magnetic interference.
virus trouble
some computer viruses rend the screen display, such as: the character upside down, vibrate the screen, graphics, flip display. jitter screen everywhere online script, is ample to make you move in after the first big as one ox.
bad video card
reseat movie card, the fault can be obtained precluded.
WIN95/98 system caused
after the write cache as is for this reason that in the Control Panel - System - Performance - File System - Troubleshooting disable all drives in write-caching, allowing the problem to be solved.
power afford filter capacitor damage
open the case, if you see the power supply filter capacitor ( board that heads the largest capacitance) at the top of summon, then it shows bad capacitor, the screen jitter caused by power failure. for the capacitor, the problem can be solved.
common fault recorder 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 position of the pins connected correctly. If the recorder with other IDE device uses the same IDE cable, ensure that two devices can not be set to >
Troubleshooting II: successful use of analog recording, the actual recording but failed
recorder provided by the
identical, that is, and recorder laser power and disc read-write head matches and so on. In view of this, that using the retinue two methods to re-try it:
1. decrease the write speed recorder, we suggest the following 2X;
2. to replace different brand of empty record to burn operation. there's another phenomenon One reason is that the phenomenon of laser power diminution caused by read-write head, and if you use the same brand of record 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 duplicate the game CD
some large commercial software or game software, in the creation process, the protection of the CD disc to do so during the course of the disc replication will there can not be copied, resulting in the burning process the error occurred, or not work after copying to happen.
Fault IV: Burning the CD music can not play properly
not all audio devices skillful to read normal 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, you also need to note that burn CD music, CD-DA must be consistent with file format.
five common faults: the process of burning software to burn the disc, sometimes information means for the buffer underrun. usually in the burning process, the 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 store (BufferMemory), the final recording machine to store the data in the
BufferMemory for recording message onto CD-R or CD-RW discs, these movements must be consecutive, must not be intervened, if any one part of a problem, will not cause the recorder normal 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 automatic insert notification, disable antivirus software, Window mission management and task scheduler and the screen saver and so on.
six common faults: CD burning process, they would often burn blaze failed
amend the success rate of the need to maintain a simple system context, ie Close background dweller program, it is best to arrange for the logging system, a dedicated hard drive, specifically relative to software installation and burning. In the burning process, it is best to first data stored in the hard disk, made into and then carved into the CD-ROM. To ensure the smooth migrate of process data recorder, you need to arrange out debris often hard to lest not work because the file migrate, the error interruption caused by the burning, you can act Members mail messages to the machine, will affect the burn efficacy, In addition, the LAN, do not use resource sharing, if the burning process, the other users to read the regional hard disk, can cause interruptions or failure of the recording. In addition, even
Computer mend , it-yourself .
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