How To Repair Dell E173fpb LCD Monitor Easily

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Troubleshooting DELL E173FPB LCD adviser with ability blink evidence is absolutely accessible if you apperceive the appropriate action to analysis it. There are two sections in the adviser that can account ability to blink. It is either primary or accessory area or alike sometimes both sections can be faulty. So to abstract as which area is giving problem. I acclimated an auto 12 volt ablaze ball (brake light) and affix it amid the 12 volt accumulation band and algid arena with the agglutinate removed. If the ball still blink affairs is actual aerial the ability primary area accept problem.

Do not discount the added voltages band as able-bodied such as the 3.3 and 5 volts. If any apparatus shorted that gets the accumulation from the 5 and 3.3 volts, the ability additionally may blink. If the 12 volts ball lights up we can accept that the ability accumulation is alive accomplished and article shorted added bottomward the band that makes the ability accumulation to blink. If the ball lights and you abide to analysis the ability section, it will be activity to decay your time. You should now apply on the accessory area circuit such as the four transistors C5707 that drive the aerial voltage agent in the inverter board.

Just anticipate these transistors like accumbent achievement transistor (HOT) in the CRT adviser that drive the flyback agent area it formed so adamantine and affairs for it to breakdown is actual high. blockage the four transistors off lath begin one of them accept a shorted account with an ohmmeter.. This transistor can get adulterated by itself or it could be some others apparatus that acquired it to advance a abbreviate circuit such as a abnormal aerial voltage agent but all of the four aerial voltage transformers arrested to be accept with ringer and ohmmeter test.

Now, actuality is the abstruse that I'm activity to reveal. If you aloof alter the abnormal transistor only, affairs is actual aerial the transistor or addition C5707 transistor will breakdown again. Usually what a artisan does is to analysis the added transistors with either an analog or agenda meter. If you use both meters to analysis the transistors again you accept absent out on the adulterated transistor because both meters won't acknowledge to you the hfe account of the transistors. alone some agenda meters accept the hfe blockage feature. In added words, you accept to use analysis the hfe account of a transistor. Although you can alter the added three transistors directly, why not we do some detective assignment to acquisition the account of the problem?

Using the Peak electronic album basic analyzer, I could acutely see the altered amid a acceptable and a bad transistor. A acceptable C5707 transistor has hfe account from 320 to about 390 but the bad one reads 467! The added two C5707 transistors accept account about 350. In the aloft case alone two C5707 transistors were replaced and you save the added two. I had bake in analysis this LCD adviser for abounding canicule and it formed altogether fine.

Conclusion- Whether you adjustment the DELL E173FPB LCD adviser or any added archetypal such as the E172FPB or E171FPB, basically the testing adjustment is the same. You could additionally use this testing action on added cast of LCD adviser too.

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