The problems is that the Tv is in short, I´m not sure but the horizontal transistor BU2506DF is in parallel with a lithe transformer o coil TLH15412, I think this is in short because It´s measure is almost 1 Ohm. Maybe you could tell me what another thing to do to solve the problem.
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Re: Help with panasonic ct-z1410
If the picture is short top to bottom then the vertical is your problem . Check the caps in this area as they tend to become weak can't fill the verticals height . The transistor you talk about if it reads 1 ohm from the collector to the base or the emitter then the set would not work , But it will read 1ohm from the base to the emitter . Check the vertical . Good luck
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You're discussing about the width problem to picture. If yoke have a short in between its wingdings [even a single winding short], will cause the failure of horizontal output transistor. As per you report here, the set has a raster, but problem is with the picture width. There possibliliites for this fault are. 1. Lack of voltage from the SMPS power supply output. 2. Horizontal width capacitor. 3. Horizontal output capacitor. Check the output voltage from the SMPS section first, and confirm that it is OK.
The high-pitch squeal is from the power supply, caused by a short circuit. The usual cause is a shorted horizontal output transistor. I believe this model uses a 2SD1556, but I'm not certain. I don't have the service manual for this model, but that part is used in several other 32- and 36-inch models.
While the horizontal output can fail on its own, it's usually because of other problems. A large-tube TV like this is hard to work on, and you might want to let a professional technician check it and give an estimate for the repair.
You are changing parts in the wrong circuit. The problem is in the vertical circuit. Look for the vertical IC and resolder the pins first. It should be an LA7837 or something similar. Also, check the 100ufd and 47ufd caps in the same circuit.
It has a short circuit somewhere...
Not sure if this is a CRT, LCD or Plasma TV but the two common causes
of shorts for CRT's are the Horizontal Output Transistor (HOT) and/or
the Flyback Transformer (Could be both). As a general rule if the
flyback has visible cracks in the case they should be replaced. It is
also a good idea to replace the HOT if you're replacing the flyback as
it could be weakened and may not last much longer itself.
Other areas to check for all types would be any Diodes in the Power
Supply Circuit. If a diode is open it can cause the fuse to blow. Note
that a diode itself will not short, but an open diode can cause a fuse
Sure, Why not?
It is worth the effort.
If the set is 'dead', it is the easiest to repair.Only 'tampered' sets pose problems.
It could be a simple blown Fuse, or the Power Regulator IC.
This should not cost you more than $100-150 as Technician charges + 15-20$ for spares.
It could also be a defective Horizontal Outut Transistor and short cicuiterd FBT, (tho' it seems remote), but if yes, add another $100.
definitely worth calling a professional techie