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Dec 30, 2009
Dell latitude D520 Keyboard components
User talk Keyboard Maintenance
How to maintain notebook keyboard
If we say that the keyboard can be demolished desktop clean up fairly easily, then how should clean laptop keyboard? In fact the maintenance of laptop keyboard should be more important than clean-up. Laptop keyboard structure is relatively complex, while each key of the keycap can be independently demolished, but the difficulty of clean-up is relatively increased, and the keyboard of the ultra-thin notebook designs generally use "X" structure, although the feel better, but the keyboard "anti-blow" capacity declined.
For the food residues such as dust particles, the use of laptop keyboard is a good method of thin-film, thin film surface by pressing keys at a location designed concave-convex, its shop on the keyboard surface can be an effective protection against dust, waterproof, anti-wear, but the the touch keys will have some impact, which would be depending on the user's circumstances in.
keyboard waterproof design Dell inspiron 9200 Keyboard
Toshiba satellite A10 Keyboard HP pavilion DV6500 Keyboard The
Since the keyboard, fear of water, then it should have a solution, because the structure of the keyboard can not be changed, printed circuit needs of film and conductive rubber in close contact, hermetically sealed, or the true sense of the water is very difficult. The current water-proof keyboard, there are two designs, one is to BenQ BenQ 52M-based hardware waterproof + drainage holes designed to ease the double insurance, which is BenQ BenQ 52M waterproof keyboard, waterproof patent, by improving the internal structure of the keyboard, circuit board under the two films are better able to prevent water entering at the same time an increase in the rubber button on the edge of flume and drainage holes, so if not carefully pour the liquid will not damage
Dell latitude D500 Keyboard Dell latitude D600 Keyboard
Dell latitude D520 Keyboard components, but its costs are higher; other BenQ BenQ P100 coast is to the keyboard-based, pure water system design, using a large number of drainage holes of high permeability, the water has not yet returned to the keyboard, the inner layer, it was completely discharged. Of course, we are talking about water, just water for life, some of the user to verify the waterproof keyboard, and even the entire keyboard soaked in water. Waterproof keyboard is not a dive keyboard, this and waterproof watch, diving watch difference is the same.
Posted at 06:42 pm by johnsunvalley
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precautions Sony VGN-BX168GP Adapter
The above-mentioned measures may inconvenience to customers, we are very sorry! Constantly improve the product quality is our important responsibility, but also the direction of future efforts. Thanks again for the majority of customers understanding and continued support!
The steps and precautions Sony VGN-BX168GP Adapter Acer Aspire 3000 adapter Dell inspiron E1505 Adapter【】
In recognition of your power adapter model whether VGP-AC19V18, please first disconnect your VAIO personal computers and / or expansion of VAIO personal computer machine-seat power supply, from the wall outlet (or the desk-type socket) Unplug power adapter plug. Prior to this, do not touch the metal parts of VAIO personal computers, VAIO personal computers expanded Stand metal parts, with a personal computer or a personal computer expanded Stand external devices connected to the metal parts and / or power adapter of the metal parts.
* Please make sure your power adapter
HP pavilion DV1000 acapter Gateway 6020GZ Adapter
Dell inspiron 1100 Adapter model.
* If you are the object of the power adapter power adapter, disconnect the VAIO personal computers and VAIO personal computers expanded machine-seat power supply, from the wall outlet (or the desk-type socket) Unplug the power adapter plug.
Power Adapter】 【Object
* Sales in mainland China Power Adapter
Model: VGP-AC19V18
※ other models of power adapter for the target groups.
Posted at 05:34 pm by johnsunvalley
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Dec 29, 2009
Lithium batteries IBM thinkpad T60 Battery
When the nickel-cadmium batteries to repeat after a few remained at a low discharge capacity after charging, if you have to do a relatively large number of discharge the battery will not work, ultrasonic cleaning machine, this situation we call the "memory effect." Memory effect that nickel-cadmium batteries may be the most easily misunderstood the issue. Discharge termination voltage is set higher video recorder, with the use of the voltage change is low, the surface may seem as reduced, but the low discharge voltage can be from 1 or 2 times a complete discharge to resolve this phenomenon. Proposal to conduct a 10 second charge-discharge, in order to prevent the proposed effect.
Lithium batteries IBM thinkpad T60 Battery Toshiba satellite A100 Battery Toshiba satellite PA3465U Battery
1, lithium battery (Lithium Ion Battery) features:
1. Has a high energy density, and high-capacity nickel-cadmium battery power compared to its volume of 1.5 times the weight of the energy density of two times;
2. High-voltage, average voltage is 3.6V, is a nickel-cadmium batteries, nickel-metal hydride battery three times (Ni-Cd, Ni-MH battery voltage of 1.2V);
3. Use voltage flat and high-capacity;
4. Load characteristics, 2C discharge as possible;
5. A wide range of temperature -20 ℃ ~ 60 ℃
6. Excellent charging and discharging of life, after 500 times of its capacity after discharge at least 70%.
Nickel-metal hydride batteries and lithium batteries differences:
First, the weight of Dell latitude D820 Battery Dell inspiron 1525 Battery
Each one-cell battery voltage of view, are the nickel-metal hydride and nickel-cadmium 1.2V, while the lithium battery is indeed as 3.6V, lithium battery voltage is 3 times the other two. And the weight of the same type of battery lithium batteries and nickel-cadmium batteries is almost equal, while heavier than Ni-Ni-MH battery. We can see that the battery itself, the weight of each one different, but the high-voltage lithium batteries because of 3.6V, in the case of the output voltage is equal to the number of combinations of a single cell can be reduced after the third Er Shi forming the battery weight and size reduction.
Posted at 09:39 pm by johnsunvalley
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nickel-cadmium Dell latitude D630 battery Needless to charge
, nickel-cadmium Dell latitude D630 battery Needless to charge when not in use a long-term preservation, however, it must discharge to the termination of the battery voltage (a video camera battery warning lights flashing) may be stored in the original packing carton packaging or cloth, paper packaging, the place dry ventilation Department store.
In the rechargeable battery
dell U4873 battery Acer Aspire 3000 Battery (chemical batteries or physical batteries) use of process, the charger is an important device to use its success, so was born a rechargeable battery, charger is a key issue, because the charger will have a direct impact on the battery The two important technical indicators: 1) Rechargeable battery capacity; 2) rechargeable batteries recycling times, that is life. Until the sixties, however, before the charger technology and rapid development has not been widely used approach is mainly constant current or constant voltage charging method, charging effects are not too good. This state of affairs until the sixties outlet based on a minimum rate of rechargeable battery found in curves of principles acceptable to the size of the charge current decreased exponentially with time according to this rule only after the confirmation is not a constant current or constant voltage charging are the most suitable method. Because the constant current charging, its initial charge current is always lower than the acceptability of the battery, resulting in low efficiency charging, charge a long time, and in charging the latter part of the final battery charging current is always higher than the acceptable level, Internal battery gas deposition rate and thus increasing the charge at the end, all the charging current supply of gas all the precipitation, the battery Compaq presario R3000 battery Dell inspiron 1300 Battery Compaq presario 2700 battery internal voltage increased rapidly, the battery temperature rose rapidly followed, resulting in each charging electrode active material on both fall off, thereby greatly reduces the battery life, while the constant voltage charging method in the charge resulted in a very low initial resistance of the battery charge current is too large, but over time does not exponentially decrease (often deviate from the development curve).
Posted at 07:33 pm by johnsunvalley
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Dec 28, 2009
The Hp EV088AA battery charging
The Hp EV088AA battery charging, the charger should pay attention to the surrounding heat, too deliberate use of what wind there is no need for fans, but noted that the charger should not put too much debris around. Ordinary users the process of using the battery, the battery is often not have a dedicated storage bag; users to replace the battery, will acquire the habit of readily put away the battery, regardless of where the place is clean and moist. This consequence is that the battery they get dirty easily, easy-to-metal contact such as keys, etc. contact, easy to damp, and these are the enemy of batteries. Recommendation: Users should set up a special cell to place points, and keep the battery clean. In order to avoid problems such as loss of electricity to keep the battery at both ends of the contact point and the internal battery Hp EV089AA battery Hp 446506-001 battery lid clean and, if necessary use a soft, clean dry cloth graze.
5. A long time do not have time, remember to remove the battery from the battery warehouse, placed in dry conditions recommended brand batteries into the box, to avoid short-circuit the battery HP 417066-001 Battery HP ze4900 battery Apple A1185 Battery.
6. A long time without the nickel-metal hydride batteries in the store a few months later, the battery naturally into a "hibernation" state, the battery life greatly reduced. If the Ni-MH battery has been placed for a very long time, I suggest you first with the slow charge is appropriate to charge. To another key issue involved here: for Ni-MH battery, the battery should be fully discharged and then save, save, or live? These two very different views of what it should be used? Many people think that we should adopt the former, but I thought that to save the battery charged is reasonable. Because: According to tests, Ni-MH battery to save the best conditions to save about 80% charged. This is because the nickel-metal hydride batteries self-discharge high (10% -15% a month or so), if the battery is fully discharged and then save, for a long time not to use, the battery self-discharge phenomenon will result in excessive battery discharge, may damage the battery. Do not believe it? Then you think about buying a new nickel-metal hydride rechargeable batteries is not all there is electricity, which is the reason. Recommendation: more compared to correct the wrong point of view, from the maintenance of the battery to start in the right direction, otherwise it will backfire.
Posted at 07:04 pm by johnsunvalley
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Do not eat the Dell inspiron 6000 Keyboard
Do not eat the Dell inspiron 6000 Keyboard Many people have desk when the dinner table, food debris and fluid keyboard sometimes fall into the gap, which will nourish a number of insects and bacteria, will plug the keyboard.
3. Do not always scratch one's head on the keyboard Dell inspiron 1300 keyboard Dell inspiron E1705 keyboard
If your keyboard has a lot of broken hair, and you scratch one's head are inseparable. The hair will be glued to the fingers, and you not be aware. Sometimes the hair will fall into the keyboard directly to the gap.
So we still have to select the keyboard Dell inspiron 9200 Keyboard
Toshiba satellite A10 Keyboard HP pavilion DV6500 Keyboard to select a well-known brands of products, the keyboard is also the product price-money, in general, the market less than 30 yuan if the keyboard quality is very difficult to have assurance.
Purchase of the keyboard, we have a lot to observe some of the details. First, to ensure full keyboard keys have the same feeling, followed by coarse wire to try to choose the keyboard, another key gap to observe the dust case, which will be able to buy the basic guarantee for the keyboard is a new product, the quality of the situation must much more stable.
Desktop Keyboard how to care
Today, more and more use of computers has not only a tool in our work, but also a tool for our recreation and leisure to see a large, play computer games has become an important task. Many people like to eat in front of the computer, or smoking, this is actually a very great impact on the keyboard. If a large number of ash falling into the keyboard keycap inside, it will touch on the button great impact. Also in tobacco tar on the keyboard within the film also has a strong corrosive effect, long-term in the corrosive environment, but also make the keyboard feel down, and the film caused irreparable harm.
Posted at 06:38 pm by johnsunvalley
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Gateway M500 adapter action
But the Gateway M500 adapter action in the protection of the circuit before the books have been biased towards the internal regulator circuit working upper limit or lower limit, in principle, have some influence on the device lifetime, but according to today's point of view, the reliability of electronic components has been quite good, as long as the design context, very few will be problems, life will not be shorter than the life of books, so this is not a major concern. The more important question may be books of data security, automatic protection of sudden stop working for a computer is a terrible thing, especially when many do not have the battery's friends. Sometimes baffling re-boot your computer and relevant. For the first wife of the adapter, the manufacturers know what kind of access to the load, so you can easily calculate the nominal voltage and nominal adapter current, that is, nominal voltage adapter must meet the following two conditions The first is when the nominal maximum current output voltage minus the adapter itself, the required voltage drop should be greater than 95% of the load, and the second is the smallest when the current output voltage minus the adapter itself, the design should be less than the load pressure drop 105% of the required voltage. However, if you are using a non-first wife adapter
Compaq M2000 Adapter Toshiba PA3467U-1ACA Adapter, such as general-purpose transformers and the like, the above-mentioned problem can not be seriously considered, it is the user can only be as far as possible from the adapter parameters to find ways to be compatible, but the resistance of each adapter is different nominal voltage allowable error may be different, under the nominal current output voltage changes in the scope of the definition may be different, or even the output ripple coefficient is not small enough not necessarily, if not carefully measured the output power relationship with the output voltage, in principle, there is a certain risk, but this risk is very small, as long as you choose a large enough nominal current adapter
hp 375143-001 adapter
Dell latitude D610 Adapter Compaq presario M2000 Adapter would not have the problem of excessive internal resistance, ripple coefficient can also be internal books The voltage regulator to reduce, so I said, first wife of the adapter is usually better than non-first wife of the adapter. This is the first wife of a different adapter and the general adapter.
Posted at 06:14 pm by johnsunvalley
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Dec 27, 2009
To 600mAh battery, for example, set up current of 0.01C (ie 6mA), its 1C charge time is not more than 150 minutes, then set up current 0.001C (ie 0.6mA), it is the charging time may be 10 hours -- - The issue of accuracy because the instrument can no longer be accurate, but from 0.01C to 0.001C been calculated capacity of only 1.7mAh, a multi-use more than seven hours in exchange for the 3/1000 This is just less than the capacity is of no practical significance.
There is a saying that is, rechargeable batteries used properly, will appear in a certain range of a cycle the best state, is the largest capacity. This should be sub-situation, sealed nickel-metal hydride batteries and nickel-cadmium batteries, if used properly (such as regular maintenance to prevent the memory effect of the generation and cumulative), generally in the 100 - 200 cycles to reach its capacity at maximum, such as factory capacity 1000mAh Ni-MH battery with 120 cycles, its capacity could reach 1100mAh. Almost all Japanese Ni-MH battery manufacturer's technical specifications book describes the cycle characteristics of nickel-based batteries Dell Inspiron 8100 Battery toshiba PA3285U-1BRS battery Dell Inspiron 640M battery
of the map I can see such a description.
Nickel-based batteries have the best state, typically 100 - 200 between cycles reach their maximum capacity.
For liquid lithium-ion batteries Dell 75UYF battery Toshiba PA3399U-1BRS battery Dell Y9943 battery, but there is no such a cycle capacity hump phenomenon, from the lithium-ion batteries battery factory to the final retirement date, the performance of its capacity is to use a little time. I do in the cycle performance of lithium-ion batteries, when there has never seen signs of recovery capacity.
Posted at 06:41 pm by johnsunvalley
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Regularly clean the keyboard.
Regularly clean the keyboard.
Tapping the keyboard. Put the keyboard upside down, tapping the back of the keyboard to allow debris to fall out from the keyboard slot.
With a small brush or hair dryer blowing. With a brush or small brush, clean the keyboard, gaps in the debris Dell latitude D600 Keyboard
Dell latitude D520 Keyboard Dell latitude E5500 Keyboard cleared.
Clean the surface. The use of computer special cleaning agent, wipe the keyboard surface with a soft cloth.
Professional cleaning.
If you want to thoroughly clean the keyboard, it can do the keyboard apart, the keys take down, pay attention not to let the circuit board touches the water. After cleaning, such as the keyboard dry, and then assembled back. However, if you are not familiar with the keyboard of the structure, may be loaded bad. Now have a professional cleaning keyboards and other computer parts company, if you Gaobu Ding, you can contact them.
Sets of plastic film.
On the keyboard
Dell latitude E6500 Keyboard Dell latitude E6400 Keyboard Acer Aspire 3000 Keyboard sets of plastic film can effectively prevent the debris, perspiration and other pollution, the keyboard, but it also reduces the use of keyboard feel, a matter of personal habits.
Disinfection.
Use of alcohol, disinfectants and other cleaning the keyboard, you can achieve the purpose of the eradication of the majority of the bacteria, but there may be caused by corrosion of the surface of the keyboard, please use the trade-offs.
Posted at 06:16 pm by johnsunvalley
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Dec 23, 2009
alkaline batteries and nickel-metal hydride rechargeable batteries
alkaline batteries and nickel-metal hydride rechargeable batteries call back time measured ︰ Canon Flash 550EX to the top as a test body, respectively, using the new Panasonic "high current" alkaline batteries 4, and just saturated electrical charge "may good card" 1400mAh Ni-MH rechargeable batteries 4 to do more. Test Method ︰ open flash switch, wait a minute to reach a steady standby mode, press the release button and make the whole output, in order to complete the stopwatch timing indicator has sounded the alarm call back time.
Results ︰ alkaline batteries call back time was 10 seconds, Ni-MH rechargeable battery Dell latitude D820 Battery Dell inspiron 1525 Battery Dell inspiron 6000 Battery takes only 5.3 seconds! (Test ︰ STD)
Note 2 ︰ real-world experience, fully saturated power nickel-metal hydride rechargeable batteries for use in indoor shooting situations, such as wedding and so on, some can be taken two to three volumes of film (flash 100 times over); however, the characteristics of nickel-metal hydride batteries, the Once the charge depletion, will quickly shift from a normal call-back time, completely without electricity. The alkaline battery while a call back than the nickel-metal hydride batteries began to slow, but repeated use, even if the call-back time between the two very long, or be able to call back to reach the completion state. In other words, the use of nickel-metal hydride batteries require special attention to the backup battery IBM thinkpad T60 Battery Toshiba satellite A100 Battery Toshiba satellite PA3465U Battery to carry.
Note 3 ︰ to Ni-MH rechargeable batteries used in the body (for example, installed in the battery box or a motor drive on), because the Ni-MH battery voltage is typically 1.2 volts, rather than the 1.5 volt alkaline batteries may be in the power attenuation process, the unstable power supply caused by fuselage (similar to "show the Big Dipper" in the case), need attention.
Posted at 06:25 pm by johnsunvalley
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