Hello, my Toshiba TV (standard def- 4 years old) seems to have "blown out" during a storm. Inside, two fuses are blown. I tried to replace them with identical fuses and as I place the new fuse in, I see a small electrical arc to the fuse and it blows the fuse immediately. The TV is unplugged of course. Any ideas what could be causing that peoblem and how I may be able to fix it? Thank you for any assistance.
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The faults occurs during lightning strike is not predictable. At present, the power supply inverter section of your RCA ahs damaged. A thorough chekup must be done to detect whether there is any other faults also occured or not during this time. OK.
you mite try replacing the ac fuse 1 time-if it blows again there is a short in the power supply-i would then check rectifiers in the primary of the power supply-then check the fet-if any of them are shorted replace them
The sound could have come from one of your power capacitors. You could tell if one of them is no longer operational by looking at them; they will be burned, or blistered, or will be bulging. If this is a CRT type of TV ensure that you only look inside if you are fully aware of how to deal with the lethal voltages that are stored on the inside of the unit.
Yes, it's quite possible that you indeed may have sufferd from a Power Spike, induced by lightning during the storm, esspecially if plugged in during said storm. I have had quite a few customers ova the years with this exact problem. I always advise my clients to unplug ALL devices during a storm, and for ones that simply cannot be unplugged then some sort of Spike/Surge Protection device MUST be used. As a matter of interest, I have written many a report to insurance companies to support a claim for a replacement.