how to fix broken power supply

power supply is insufficient, one has the air-conditioner to start the computer to restart. This phenomenon has been bothering me for some time. Their ups can not be used normally: battery power when the CRT monitor was opened by others caused degaussing coil suddenly open recoil high-voltage damage inverter mos tube, Yunxi County everywhere is not equipped with

a high impedance. When the voltage difference exceeds the rated value, the body resistance will rapidly decline, the L-N shows an approximate short-circuit state, the front-end fuse due to short-circuit and the rising current will make it fuse, to protect the back-end circuit, sometimes the body withstand power is too large, the user is also warned in self-destruction mode that the device has encountered problems. It is usually used at the AC input

is at 220 volts. You can see an example in Figure 1. Upload Download Attachment(10.88 KB) Figure 1: Make sure the power supply is set to 220 volts. The next step is to check whether the fan is rotated. If the fan is rotating, the main power input must be working. If the fan is not rotated, either the fan is broken or

Faulty model: Great Wall C-I5271 type display; Fault Cause: Lightning strikes; Fault symptom: no display. The user reported that when the machine was struck by lightning, it made a "bang" sound. Analysis and maintenance: the power fuse (f901/3.15a) has been burned out and is black inside the casing. This indicates that the power supply has a serious short

1-6. Switch Power Supply of excited TransformerThe transient control characteristics of the output voltage of the switch power supply and the load characteristics of the output voltage are relatively good. Therefore, the operation is relatively stable, and the output voltage is not prone to jitter, it is often used in

to the auxiliary circuit. I suddenly realized that there was something wrong with the auxiliary power supply? The biggest difference between ATX power supply and at power supply is that it provides an auxiliary

U disk is also required to power, if the power supply is not normal use, or the computer can not correctly identify. About the U disk because of power supply cause can not use also have many kinds of situations, some friends are desktop can not use, some are notebooks, some

　The cause analysis and solution of the power supply light of notebook computer is not bright/flashing continuously One, the power light is not bright First of all, The notebook power light is not lit, there are two situations: If the LEDs on the external power

I went home today and found my computer couldn't be started. 1. Check. The Green Line of the power supply is connected to the gray line, and the power supply has no reaction. It is determined that the power supply is faulty. (Wake

1. Plug the video card into the slot of the video card and fix the video screw. Locate the video card power connector at the top end of the video card (this video card has a power interface of two 8 holes). 2. Find the inside of the chassis in advance to stay out of the video card power plug (outside the box in

The hard drive is broken, and the "bad hard drive" that you can usually fix has several things: 1, the boot error, can not start normally. This is not necessarily "bad", usually with the MBR removed and 70% better to repartition. If not, should be grouped into the third category. 2, can be normal partition, can be formatted, but the scan found that there is a "B" marked, that is, usually called "out of th