Repair LCD Power Supply The Easy Way
Resolution LCD monitor power recovery is easier than the power of CRT monitors. It 's small and compact and usually has only one exit, the 12 volts and amps range from 2 to more than 4 amps. Some have also designed 18-24 volts. Nowadays most LCD power supplies are to be built on the board as the main Dell E151FP LCD monitor, while the old type of package form were separated, as the power.
The type of power supply module is easy to diagnose becauseYou can work replaced another type of unit, just to be sure that the energy package, the problem. You external DC supply to power the LCD to confirm if the power supply is faulty. If you do not have the external DC power, you can always use this method for isolating the problem, in particular the symptoms are not allowed to flash a low power consumption and performance. Using the rear light bulb (12 volts) from a machine and connect with the power out. If there is no light, thenThe power is in place. If it is dark or flashing power has a problem. Why use this method to try? Because if there are components on board shorted or lost on the Main LCD, which affect the performance of power.
Experts, the problems with the LCD power supply, the motherboard also incorporated power were the most due to the failure of electrolytic capacitors (probably because of the heat) in primary and secondary. Most capacitors havepower limit high ESR low-power, flash, or does not cause the production of energy. Typical electrolytic capacitors in the primary are 47 and 100 micro-farad 50 volts and the secondary pages 1000-2200 micro-farad 25 volts. Sometimes you see the shell capacitor was Bulge and the sleeve that the condenser shell covered in darker colors such as brown have become.
The power part in some of the LCD are still using the pulse width UC3842Modulation (PWM) IC. This type of chip is quite easy to find in the market compares with some power-IC, which monitor is very hard to get the LCD. Samsung 153V TOP247F power IC is that the model is simple enough to solve the 'if that power is not a. Some power supply that came just burned and replaced cleaning and protection, as new work.
Troubleshooting Power LCD is not so hard if you know, given asPower of work. If you are unsure of how power is correct, I invite all of my articles on the power to read. I will continue to perform a more entries on this page and hope you can check my site more often to drop.
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