SHARP TV Repair

TV Feature sharp in protectionist conditions are as follows: if the tv in turn led indicator is red then green and hold a few seconds and then red again.To repair damage Sharp TV with this condition (Protec), bang Zic (http://zicelectronic.blogspot.com) gives the solution as follows:
First you have to clean first with a brush or brush mainboardnya hewn around 2cm, to see and ensure the solder point which is not good, as distinguished loose solder point will be moved and you can see with liquid jelas.Gunakan thinner high-gloss (good quality and fast dry) to clean the stain on mainboard.Setelah dirty or clean, check all the solder points in part: Vertikal-Regulator/power supply-Flyback.blok are most often occurs because of heat damage to the solder point that ditimbulkannya.terutama solderan check in the feet IC vertical and resistornya.Replace the IC vertical if you believe the damaged or also on the mark with resistor color change vertikal.kerjakan carefully.Try to turn on the TV and watch, if it still does not want to start normally, follow these steps:If the flame of a red LED to the green and stop being a yellow, damage occurs to the IC memory (24c04-24c16), replace with a distinguished baru.Setting return parameters used in the service menu. If the red LED continues to die, the damage occurred on the main IC (TDA 938psxxx) or loss of voltage on the regulator 3.3volt, check the power supply.If a green or flashing red, there is an error in the IC memory.ika green LED for 5-10 seconds and re-red, there is a failure on the horizontal section, check the flyback (unplug and measuring with a multimeter scale of 10k in the feet and legs bound ground TR.output horizontal collector, if it moves even a little mean already short flyback . Also check the voltage of 180V to block RGB, usually involves damage to the limiting resistor.Conclusion:SHARP TV that uses a main IC TDA series 938PSxxx, general and frequent damage to: SOLDERAN THE LESS GOOD, VERTICAL IC, MEMORY IC, flyback and REGULATOR.These tips have my practice at home on TV Sharp 14 "Universe and managed successfully. Additional to this model if the Sharp TV vertical images are not normal (blank top and bottom about 10 cm) try to short pins 6 and 7 of IC (service mode) and resetting said vertical bang zic.For the layman who wants to try at home Be careful to stun! remember the TV still stun the rest (1-5 KV) electrical outlet even though the TV is off ..

Http://coretanaba.blogspot.com