The best and easiest way to track down a short is with a digital multimeter just check for continuity throughout the circuits.If you you cannot get your hands on a multimeter use a compass.It will detect and move left to right when there is a complete circuit and as soon as you hit the short the needle will be dead still. Fix the short and test.It would probably be alot cheaper than trying to track down a part with no certainty of it.Hope this helps
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Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis. http://electronicshelponline.blogspot.com/ To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.
Fault with its main board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ . In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
Yes. The TV has a solder in 4.5 amp fuse. BUT most of the time when the power surges it also shorts the Bridge rectifier assy. IF you are not familiar with solder techniques, you will have to replace the power supply board. SHOP jimmy has in stock. Use model number .
If the unit is under warranty, return it to the manufacturer for a replacement or a refund.
What you need t check is that the voltages from the printed circuit boards to the LCD panel are giving the correct voltages, also check the logic printed circuit board for shorted components or incorrect voltage values, if after checking the voltages frim each printed circuit board, everything is testing ok, the problem may be that you need a replacement LCD panel. But make sure to throughly check the main printed circuit board for any faulty solder jouints , or dry joints, as well as any blown or shorted components. I hope this helps. Good luck.
Information from Sony: Audio Output Error (6X) There are three possible failures that can cause a 6X protection mode, and they are as follows. • Short Audio Amplifier Outputs • Lose of 15V Supply • Lose of 9V Supply The key to determining what to check first is if audio is heard before the TV shuts OFF. If audio is heard before the TV shuts OFF, then the next step is to check the 15V supply at CN7503/pin 1. If the voltage is missing replace the G1/G2-Board. If the voltage is present, first check the fuse PS7001 for a possible easy fix. If the fuse is OK replace the AU-Board. If no audio is heard before the TV shuts OFF check for 9V at CN9502/pin 1. If the 9V is missing replace the BU-Board. However, if the 9V is present check and confirm that the protection circuit output voltage is making it to the Main Microprocessor IC1001/pin 26. If 2.8V is present at IC1001/pin 26 then the Main Microprocessor is defective. Replace the BU-Board. If the voltage at IC1001/pin 26 is 0V then the audio output circuit has actually failed. In this case, replace the AU-Board. A shorted audio output or a DC voltage level measure across the audio output will cause a 6X protection mode indication. In either case the problem will exist in the audio circuitry on the AU-Board.
U check ur power source with other electronic devices?Yes than ur power supply board is dead.Replaced the power supply board will fix the power problems.Tries Website like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.
If the fuse blows again after replacing it, there's a shorted diode, bridge rectifier, capacitor or transistor in the power supply.
I repair these power supplies. If you need furhter assistance, write to firstname.lastname@example.org
LCD sets sometimes will not power up until the backlight boards power up. the backlight boards have SMT fuses that open. and driver FETs (commonly also SMT) that short.
check the backlight circuits first.
Probably bad inverter board. It has a short in inverter board and as soon as it powers up it detects the excessive current draw and shuts the set back off. Open it up, unplug the power supply connections to the inverter board then try to turn it on, if you get a green light then the inverter is bad. Try E-bay for replacement board.