Computer trouble removal " 8 after first 8 "

Computer is so for one to happen easily so the eastern east of fault. Computer has broken down , is the matter of a lot of computer fan headaches, this how to deal with and solution the computer that we meet fault?

Relative to the other product of electrical equipment, computer is so for one to happen easily so the eastern east of fault. Computer has broken down , is the matter of a lot of computer fan headaches, this how to deal with and solution the computer that we meet fault? When this I summary has written a rule " 8 after first 8" in computer maintenance, throw a sprat to catch a whale , so as Xiang reader - -

One , after

No matter repair own computer or the computer of others, first make clear fault when occuring , former repair situation and the use situation of computer then can be suited the medicine to the illness. Besides, before repairing for its computer, still know understand the soft hardware disposition of its computer and already service life etc., accomplish to have a definite object in view.

Instance

If, with " illegal operation ", refer to the phenomenon that grows as soon as operating system arises system frequently for the first edition of computer in use of PWIN98 to halt , it is very annoying, this user preparation new form melts the weight of magnetic disc packs operating system. The author feels that not uses to so trouble, the author has seen soft hardware and the disposition of its computer carefully after installation condition uses antivirus software to check poison , , , inquire by the author, this user claims , have installed the IE6 browser of new edition recently, aren't whether can be IE6 browser good with its systematic compatibility? The author tries in " add / delete program ", uninstall the IE6 browser of new edition in fence, after starting computer again, phenomenon no longer occurs fault frequently. So can't bear for this kind of fault the hardware or drive or software that will install recently / DirectX etc. unload if can not solve problem to do again to move with great quantity maintenance work.

2 , first

For arising host computer or display, the computer of not bright etc. fault should inspect box and the outside that shows first, especially machine some outside switches and knobs whether adjustment external lead and socket have broken road and the phenomenon of short circuit, do not think that these are to not close critical little place, it is from this to practice to prove the computer fault of a lot of users. When confirming that machine external is normal, open box again or show that inspect.

Instance

A computer when move to move location rear appearance host computer does not light ( the fan of host computer also does not turn ) fault, this user considers as the year of host computer of power source to be in bad repair for a long time, had been harmed to destroy, opening box preparation to take apart next power source change. The author observes its host computer join respectively with display with a power supply cord from the socket of power source, and display shows that is normal. In line with first simple rear easy principle changes the plug of power source of host computer first a power source inserts Kong Shi Zhi, the invalid, display power supply cord that will use normally takes to join host computer , host computer returns to normal. Receive problem line on display , also do not light , prove that problem comes from this to see similar ordinary power supply cord( internal broken road).

3, it is mechanical

For CD driver and printer substandard set up , it is the general principle of overhaul computer to inspect it first to have mechanical fault and then inspect it to have electrical fault. For instance CD CD driver does not read to coil , it is what mechanical reason arouses to distinguish first( if or the problem of bareheaded), is caused still by electrical illness. Only when determining each position, turn organization and bareheaded without reason block, carry out the inspection in the aspect of electric again.

Instance

As soon as buying the 40 fast CD drivers of one year, fault phenomenon is a plate of to can't read. After the author takes over , opening CD driver have observed the internal structural situation of a next CD driver first, this money CD driver is whole steel structure , should not have more serious mechanical condition normally, the author has not also been anxious in its bareheaded with increase, trample upon it further on laser first power. Put into a disc, the author is careful to have observed the spin of a next disc and the movement that bareheaded gives , take off into etc. electrical machine the condition of advancing or retreat , the spin of discovery disc is basically normal, electrical machine advance or retreat also have no too big problem, on the contrary bareheaded package under the idle condition of adding disc , when slide rod goes up slide is very strenuous, barrier loses power source, have pushed gently with hand several times bareheaded package makes it slide on rod, have apparently sluggish sense. Now the author again key observation this CD driver slide rod, see its top formerly should white lubricating oil has become shallow and black, the stronger place of taking light even evidently dense dust impurity, no wonder sliding , it is not flexible. Will slide first with pure alcohol the lubricating oil on package that has contained impurity cleaning is clean, then, add new lubricating oil again again, then new examination machine, read to coil to return to normal.

4 , first

Remove software fault first to remove hardware problem again, this is the important principle in computer repair. For instance WINDOWS systematic software have been damaged or lost possibility causes halt the arising of fault, because of system start is a one step the process of a footprint, any link can not arise mistake , if the existent conducted file or driver of damage, system will dead is here. But the very problem of computer each parts, insert to receive interface contact bad problem, the installation of hardware equipment problem such as BIOS, driver whether perfect , the compatibility with system, hardware the stability of the equipment of power supply, the compatibility between as well as each parts resists external world to disturb sexual etc. may also cause computer hardware to halt the arising of fault. It is hard that we should begin first to consider again from soft aspect when repairing.

Instance

After a computer starts self check, on screen, shows that" No ROMBasic and System Halted" halt after message, it does not be put out that the lamp of hard disk also grows to light. It is halted that the reason of having removed the bad road of hard disk causes the reason of this fault to be that the bootstrap of hard disk has been been broken apparently , causes system to can't seek hard disk. There are many methods of restoring this kind of fault. May adopt KV300 as all, it can very relaxed solution hard disk guide district by the fault of damage, its use method very simple all may refer to the explanation of KV300 file the author when this few words , and if you have no it, so after also start computer with floppy disk, carry out under pure DOS state " special FDISK/MBR " to order , it may also force finish and the main bootstrap of be correct identification covers when the main guide of hard disk district goes up , but what all will pay attention is that this order has certain dangerousness.

Clean first

When inspection box internal accessory, should see first emphatically machine whether cleaning, if lead and each component in discovery machine between , go to line and golden finger have dust, dirty thing, spider web or extra soldering tin , weld oil, should clear away first , and then overhaul , may so reduce natural fault , again desirable get matter the effect of half merit time. Practice shows that a lot of faults are aroused because of dirty dirt, as soon as clean fault can often disappear voluntarily.

Instance

A computer when once opens box to install one show card recently after, the display dark screen after arises new start , machine trumpet sends continuous length sound " Di Di " bee ringing reports to the police to sound. Fault analysis: In box, trumpet sends continuous ringing to shout , this is typical memory newspaper wrong fault. Though say all when take apart machine or move to move computer have not gone to move from time to time probably memory bar, but memory is that precise eastern, its big enemy is dust , your computer when use a time is very possible afterwards in box to spread thin a level of surplus ash, and rely on being than near memory " oldest victim " with CPU, CPU fan the dust blown , the very possible memory that gives you is thick and a level of on upper berth, in have shake dust slightly may enter memory slot , it is bad to arouse local short circuit or contact, cause start computer the trumpet newspaper in display dark screen and box mistake. For this kind of condition, you should surely inspect the installation condition of memory first, may use hand first according to several times memory again start, see it to contact whether change well, if still do not be all right; So you may will access takes off , it is clean to clean the dust of memory surface first, then, it is clean to settle memory carefully with trumpet thin hairbrush again in slot to sweep , then insert memory fault again may remove normally.

6 , first

Power source is the heart of machine and accessory , also has no way of inspecting other fault if power source is not impossible the normal work of guaranteeing other part normally. Basis experience, the fault rate of the part of power source in when machine the proportion that takes is highest, a lot of faults are often aroused by power source, so overhaul power source first can receive matter frequently the effect of half merit time.

Instance

15 inches of a display appears to have no grating , have no image and hearing power source send " obvious Zhi Zhi ", is acoustical to show fault. Fault analysis: From fault phenomenon analysis, the circuit of power source, the circuit of line scanning and major load circuit have the fault that is the reason of causing this kind of problem. Since power source sends " Zhi Zhi ", sound shows that switch power source has worked , therefore shows that the circuit before switch transformer has no problem basically. First use the inspection of universal meter 5 export end voltages whether is normal, result discovery power source strains the end of positive electrode of wave capacitor C117 is 0 V, should be normally well-known 5 V controls , obviously, it is not normal , this shows its periphery circuit components and parts to have the phenomenon of shorting or opening a way. It is very little to discover L105 electric current with the method of measuring electric current, doubting its preceding rectification diode VD106 further have problem, change it with replacement method rear trouble removal.

7 , first

According to the common characteristic of computer fault, remove first to have the common fault of generality and regularity , then inspect special fault again in order to reduce fault scope step by step , is from surface to point , shorten repair time.

Instance analysis - - a computer arises the lamp of power source after changing mainboard to start computer again to light but the fault of the systematic display dark screen of self check. Open box , observe carefully , discover CPU fan normal operation, after losing power source, barrier inspects the installation of board card carefully, key new installation memory bar and show card, inspection mainboard is related to jump the conditions such as line, confirmation has no mistake , adopts then" minimum systematic law" to remove fault , remove the jumper of hard disk CD driver etc. , maintain mainboard only, CPU, after memory, start and the minimum system that shows card, system opens smoothly. The connection condition of inspecting CD driver and hard disk mainly, after first-class CD driver, above-mentioned fault new appearance is individual actually for CD driver to have no first-class, this CD driver, receive on the IDE2 interface of bus line, does the author inspect to discover that this CD driver has no defence on the IDE line joint that joins to use to turn over the protruding piece that inserts , is to receive to turn over actually? Careful one sees fruit not it Ran, correct first-class rear system normal.

8, it is peripheral

When inspecting the important components and parts of computer or accessory doing not be anxious first change or for it inside or important accessory starts work , and should inspect its peripheral circuit , consider to change accessory or important components and parts again when confirming that peripheral circuit is normal. If pay no attention to right and wrong, change accessory or important components and parts blindly matter, can only cause unnecessary loss. From repair practice, may know that accessory or the faults of machinery or the important peripheral circuit of components and parts are higher than its internal circuit.

Instance

PC in a unit, it is rear that hard disk has started a next computer merely again in using normally, hard disk can't be sought , is claimed according to the operator of this computer, this has also arisen this such illness for two days before hard disk , but can again seek a little while by oneself , today goes to work , the condition in normal use next is to have started computer again, system can't also seek hard disk again. Open box one to see that this hard disk is the west several hard disk of 3.2 G of the of 3 years ago , looks very old because of having been often dismantled to copy data. For this kind of fault, may first inspect the IDE line of hard disk, after change new is invalid, it is tight to try to change the plug of power source to insert again, start rear hard disk " suddenly suddenly " move to turn return to normal , do to weigh! It packs accessory to join last box blind flange , and then starts again, strange is hard disk again do not see trace, , , such relapse some of, hard disk can not be used normally, but it is some of that the author inserts the power supply cord of hard disk only to pull out , can again return to normal. It has contact whether can be the wiring column in the interface of hard disk of power source it is bad , takes observation, and it is rusty to have no or take sauce phenomenon. Come with universal meter between the wiring column on detection wiring column and the circuit board of hard disk welds Dao coherent condition, the discovery of the author has a column( 5 V) to compensate for talent with table pen Dao know , have removed wiring column surface oxidize or weld empty weld etc. condition, the colored 3 Yuan of the author buies a power supply cord to turn wiring , cuting contact to peel , make copper wire, press one of one order when the partial socket wiring columns of hard disk of power source of power source on circuit board reply to weld the 11 on point weld , turn power source wiring public head inserts a first mother of the power supply cord of host computer, new start, PC has again recovered former days is normal.