My Sony Trinitron KV-28FQ75U went off and cannot be on again.
Hi there, I was watching yesterday a football game when suddenly the TV went of and clicked couple of times staying on stand by mode. Now when I try to switch it on it just clicks once like it was about to be on but instead it just comes back to stand by mode with the red stand by light on. I thought it could be fuse but then there wouldn't probably be stand by light on. Does anyone know what's wrong and how to repair it?
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this is a proper electronic part failure this will require to be fixed by a proper tv technician as no body can guess ..call a qualified professional and get it repaired .ram mistry EMAIL firstname.lastname@example.org
1) When the picture "stops", does the standby light blink at all?
2) Can you post the model number please?
Some of these sets are known to have problems with the picture tube as it starts to age. There are some workarounds for this that can extend the life of the set for a short time. Without the model number though, I can't confirm that this set is in that catagory. Please supply responses to the issues above and we'll continue from there.
The 2 blinks are an indication of over-current. This is usually because of a shorted component. The most common is the horizontal output transistor. This will be a 3-legged part attached to a heat sink close to the flyback transformer (part with red wire coming out the top). This transistor will be marked C4856 or something similar. Update this with the exact marking and I'll provide you with the full part number and approximate cost.