If everything else in the houser works then the problem is inside the tv. Since the tv is completely dead that means that the power source board is faulty - otherwise you would have got the fault warning light lit.
To more precisely identify the faulty part the tv must be opened and the board tested. If you don't have electronics experience all you can do are some basic checks: that when you try to start it no arking is generated, that all the components are ok - no deformations, leaking, smoking or burn marks, and finally that the power reaches the board (use a voltmeter set on AC to check that).
If all appears ok then it's time to call a certified repairman - the fault is in the electronics, beyond your expertise.
You have a possible failure in the main power supply which is a switch mode power supply. http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies If the SMPS is in order as the supply comes up once the main line to the mother board is disconnected, then the fault is in the mother board for a possible failure in the main drivers sections. Using the multimeter trace the short , remove , power to test for correct voltage before you can replace with the same part.
Remove plug and then the rear panel. Use a good multimeter to trace from the main plug to the SMPS unit. Find a fuse here and if the fuse blows up again then the SMPS has failed.
Please find tips to repair the SMPS unit.
HI,
look on the power board and change theses caps: C8017 2.2uF / 275volts and C8016 1uF / 275volts and of course check the main fuse. If the red LED on the power board is on then change those caps above....should power right up...
http://tvtechwork.webs.com/
Hi,
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Ok the last expert told me to replace the following capacitorsC8017 2.2uF / 275volts and C8016 1uF / 275volts and to check the main fuse, well I need to know what the main fuse looks like and how to remove and install capacitors! And how to find them! Please include step by step details
When I took the power supply cover off, I looked through a square opening that goes back beyond the power board or whatever, and there's a cylindrical fuse like a common inline fuse for christmas tree lights only larger! Its labeled. F101! The filament is not visable it like the glass on the fuse is stained brown like chocolate milk? Is it supposed to be that way or is it blown? Its soldered on so if it is bad how do I remove it?
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