How to Repair Dell LCD monitor easily E173fpb

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Troubleshooting Dell LCD monitor flashes E173FPB with symptoms of electricity is easy if you know the correct procedure for the test. There are two sections in the monitor, can cause bursts of power. E 'primary or secondary section or even sometimes both sides may be defective. Thus, to isolate the problem as a section type. I) a 12 volt car bulb (the brake light and the connection between the supply of 12 volts and the cold mass with the fuse removed. If the lamp continuesflashing the odds are a very high power is the main problem.

Do not neglect the other lines of tension, and the 3.3 and 5 volts. When all the components is short-circuited, the supply of 5 and 3.3 volts, the power may flash. If the 12-volt light comes on, it can be assumed that the card works well and a bit 'further down the line that makes the flash power short-circuited. When the lamp comes on, and will continue to monitor the performance of the party, willwasting your time. Should now concentrate on the second part of the track, like the four C5707 transistors that drive the high voltage transformer on the edge of the inverter.

Just think of these transistors as the horizontal output transistor (HOT) in the CRT, the flyback transformer unit, where he worked so hard and the chances of a collapse is very high. Examination of the four transistors have found one of them on a short-circuit the reading with an ohmmeter .. These transistors can be obtaineddefective themselves or there may be other components that cause a short circuit, like a failed high voltage transformer, however, be reviewed every four high voltage transformers with Bell and caused Ohmmeter test development properly.

Well, here's the secret I'll show you. If you only replace the defective transistor, the chances are very high, transistor-transistor or other violations C5707 again. In general, what is a technician is testing other transistorboth with a digital or analog meters. If you try both transistors meters, you missed the transistor is defective, because both feet are telling you not to read HFE transistor. A few meters only refer HFE digital. In other words, we must, however, examining the reading of an HFE transistor. Although you can replace the other three transistors directly, why not, it's a bit 'of detective work to find the cause of the problem?

With peakElectronic gas analyzer Atlas, I was able to clarify the difference between a good and a bad transistor. HFE C5707 is a good read transistor of 320 to about 390, but the bad news is 467! The other two have played C5707 transistor 350. In the above case, only two C5707 transistors have been replaced and save the other two. I had to burn in this test the LCD monitor for several days and it worked perfectly.

Conclusion: If E173FPB Dell LCD monitor or other remediesModels such E172FPB or E171FPb, the test method is basically the same. You can also use these tests to other brands of LCD too.

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Samsung 153v LCD Monitor Power Supply Repair Tips

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Samsung 153v troubleshooting power liquid crystal, such as solving problems of the type CRT. This monitor has no sign of power. When you have to repair this type of food, I suggest you first remove the transformer switching. Then test each component of the primary zone to perform the additional secondary zone. You have to be good at basic test of electronic components to detect the disorder.

You can still browse the filesthrough my website only if you try does not know how basic electronic components. If you do not select the right way, I do not know, you can lose a defective component and will not be able to resolve the problem. After careful consideration of all components in the electricity sector, I found the filter capacitor is not a reading of the meter with digital capabilities (open) merging the two towers has also slowed, 1N4744 Zener diode circuit of 15 volts and Finally, the IC powerTOP247F blown! Tests for primary switching power supply with a tester from Dick Smith flyback shown in green bars indicate good management.

What we were here, the secondary diode and capacitor filtering. After checking with analog meters and bill-ESR, they found all in good condition. Other sectors, such as the motherboard and the card sees inverter) in (failure rarely able to contribute to these two environments. Now, we have confirmed that only five components deemed defective. One after 'components have been replaced (except for backup) and just before turning on power, make you connect a 100 watt light bulb for the live-ac-line, see pictures on my site. Once that is done you can then display on the LCD brightness of the lamp to look for.

If it is very clear, this means that there is still some short circuit in the power supply. If you run, walk or down, you can now get your red probe to the secondaryCheck whether these DC to their respective line. If the DC voltage output, you can turn off the power, the discharge of filter capacitor (for security reasons), remove the bulb and connect the new backup the original location.

You are now a hundred percent sure that the LCD will not get the power to collapse as soon as you turn on you. Due to the nature of the filter capacitor of 105 degrees Celsius, and can lead to replace the 85 type C, another may openafter using for a few weeks or months. Ventilation in the LCD monitor is not as good as the CRT, since the food is completely covered with aluminum foil large and can become hot very quickly. Conclusion on the need for 153v power supply Samsung LCD or other brands of LCD monitors repair, the procedure is the same. Who knows the problem of power in this monitor is a common mistake, and in future you can handle this brand of power as soon as possible.To measure the electronic components is not so difficult, but the original parts, as IC POWER consume a lot of time.

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