Jun 03, 2010
I would like too know if the fly back transformer, is suppose to
have metal sticking out of the side. Mine has two spots.close too one
another.Looks like it tried to seep out. Or is this, the way it's made?
one is the size of a pencil lead and the other a small eraser.Its a
f36665 36" RCA TV 1999 year.I just wanted to make sure I bought the
right part to fix it.The Horizontal IC card didn't seem to look burned
anywhere.Is this also called the regulator Ic or is this two different
peaces? I had, a power surge, of course the fuse blew. I have too pick
one up. All I had was the 1 amp, I need a 5 amp when I plugged it in,
the TV sizzled and blew the 1 amp just didn't want to spend A lot of
money on TV and still not fix the problem. thanks Rob
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Re: the problem started from a power surge.
You may be on the wrong track here.......fly backs are a common failure,but not because of power surge. Most commonly the problem would be on the primary side of the power supply ,such as the rectifiers and sw mode regulator. If you want to prove it,just un solder the horiz out transistor(q401) and the pin of the flybackit connects to...... and if it still blows fuse ,you need to work on the power supply.......not the horiz/hv area
Testimonial: "thanks for the feed back,very helpful.I saw it spark by some resistors.Just not for sure whats all bad and needs replaced.Does the fly back need to disconnected to work on the board? If so I didn't see a good way to do so thanks rob"
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The problem arises from the fly back transformer not converting enough current to be used by your TV. This fault might have cause some other components to malfunction. I would advice you replace the fly back transformer immediately, as a first approach. Thanks
A flyback transformer is one of the more expensive components in a projection TV. If there is no clear reason, such as a known power surge, you could well replace the flyback transformer again soon because the root problem was elsewhere.
An OEM transformer is not necessary but you might have trouble convincing an authorized factory service technician to use anything but the original manufacturer's parts.
As with many of today's electronic devices, if it is more than a year or two old, you will find the new products cheaper and with more features.
The next generation of projection TVs will use lasers and scanning will be done with optically controlled micro-mirrors - no flyback transformer required.
HI. this is a malfunctioning fly back transformer. it is connected directly to the picture tub, and is part of the main power sector as well. The fly back transformer can become covered with lint overtime. this will induce a very violent arcing effect that will usually blow the entire power sector.
Replacing the fly back and affected components will fix this issue.
HI. this may be a fly back situation. this is a transformer that is located on the power board section of your set. This device stores and, distributes the necessary AC current needed for proper CRT performance. There is also a horizontal deflection chip that will shut off the transformer if it becomes unstable as well.
I recommend checking the Horizontal deflection chip for damage. if this chip is in good condition, replace the HV Fly back transformer.
There is a good chance that the failure is in the main power supply.
A second chance is that the set is protecting itself from a failure after the supply; this is more likely to occur in the horizontal section where the highest power consumption occurs.
If the failure is in the supply, it could be a fairly reasonable cost repair.
If in the horizontal section, depending on whether the failure is limited to a $10 horizontal output transistor or a bad flyback transformer.
The transformer should still be available but with markup, shipping and installation, the cost could exceed the $100 US mark.
Generally, I have been recommending folks repair their old standard definition sets, buy a converter box for digital TV, and not dispose of them since the flat panel sets are dying like flies, often just after the warranty expires.
This would at least provide some kind of set when the expensive LCD or plasma sets go belly up.
hello tell me did you have it on a surgestrip.!!! it sound's like the fly back transformer went out. !!! and is the set hdtv.!!! if not you might want to get you a new set,!!! a hdtv .!!! well hope this help you"good luck"
The fault you are describing is caused by a faulty fly back transformer. The fly back transformer provides the high voltage required to light up the picture tube/s on the set. Other than the fly back transformer there are a few components that supply the fly back with power that may have failed. Generally not overly expensive to fix