Encounter a laptop computer video, blank screen, I believe many of my friends will issue to the business to deal with. Back in the business of the warranty period free maintenance, but out of warranty to solve such problems are often high prices. Laptop computer belonging to high-density integrated products, hardware damage that can is to change the motherboard. But in fact, many times the video, a black screen is caused by some very simple questions, commissioning, replacement methods can be resolved. Here are some treatment for your reference:

A. Driver problem

Notebook computer driver is not prepared by the Company of the graphics chip, the chip company in providing chip, driven to the notebook vendors to write their own, so there may be some compatibility issues. Notebook computer drives the degree of release is extremely slow, generally six months or one year update. The 3D program is resolved, we can try to look at running the same Huaping, blank screen, if the problem goes away can be considered to be the Toshiba Satellite A215-S4807 Inverter OEM compatibility issues. Meanwhile, the driver file is damaged or lost, may lead to the phenomenon of fake crash, Huaping, black graphics runtime, to solve this problem just uninstall the old drivers, reinstall the driver can.

Two. Third-party software

Overclocking software enabled, if the memory frequency than the first, the picture is a map error, Huaping phenomenon is normal, also lead to serious crashes. Memory work in the non-normal frequency, the higher the frequency will only make their work to become unstable, especially vulnerable to an error occurs when reading and writing data. At this point, we need to reduce or respond to the default frequency can be.

Of course, as mentioned above is our most basic method in the investigation and notebook computers Huaping failure, the fault remains after debugging, we should be transferred from the hardware to start. In my personal experience, Huaping phenomenon of notebook computers are generally hardware Toshiba Satellite A110 Inverter OEM problems, software problems in the compatibility.

Three. LCD signal cable connection is bad

This is the first step we check the hardware. Huaping, black phenomenon is erratic, or the fault disappears after the surface of the pat and press the keyboard, this is often the result of poor contact LCD signal lines and interface. We just need to re-seated the corresponding interface to the Toshiba Satellite U305-S5077 Inverter OEM can be eliminated.

Four. Oxidation reaction

This is generally due to a result of the notebook computer is prone to a bad environment or long-term use, handling, we first LCD signal line interface removed, wipe the joints of the finger with rubber, and interfaces, moistened with a small amount of anhydrous alcohol cotton scrub is to remove the poor contact due to oxidation or contamination. After treatment, then the line re-connected, check plug and tighten it.

V. Memory problems

As part of the notebook graphics memory using Dynamic Video Memory Technology (DVMT, the Dynamic Video Memory Technology), part of the memory allocation for graphics memory. In actual operation, may be due to memory the internal structure of damaged, select this part as a memory chip and memory during the data exchange is often an error, resulting in Huaping, black, and even the phenomenon of death. When this happens, we can use the Replace method to replace the same size of memory to be checked. Of course, if the memory is integrated on the motherboard, we can only repair.

Six. Capacitance problem

RAMDACs (Random Access Memory Digital-to-Analog Converter) and the filter capacitor is to determine the two important factors of the graphics picture quality is good and bad. The quality of the work of the filter circuit and the capacitor quality is linked to each other, when using low-grade capacitors or capacitor characteristics of a reduced ability to Huaping black screen phenomenon flattering. In the settlement, we can first use a multimeter to check out the capacitance of the problem, and then replaced with the same specifications, so the problem can be solved.

Are more than say we can handle their own problems through the debugger, the replacement method can be solved (Note: This article does not mention the low-power design related Huaping problems caused by poor heat dissipation, as we all know, the laptop graphics controlled at temperatures very well, and finished products through rigorous testing at the factory, the manufacturers of heat dissipation problem will naturally thoughtful), but for those who can not fix the problem, such as: chip defects, integrated on the motherboard and memory damage. Encounter these problems, we can only laptop computer repair, the way to solve such problems is often to replace the entire motherboard, which is our DIYer can hardly be done.