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Re: Hitachi 52 in. Plasma
I think you may have dry solder joints on the line output stage. If the solder joints are checked and found to be good then suspect a component on the line output stage or the line output transformer itself. If you can check these faults for yourself start with the solder joints otherwise find a competant technician. Hope this helps.
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Sounds like an inverter problem. If your laptop is still under warranty, send it in for repair. If not, and you know a little something about taking laptops apart, then you can take the screen a part and see the inverter behind the screen. It is long and skinny and has wires coming out of both ends, one side going to bulb, the other to the motherboard. Inverters are fairly cheap, and easy to replace... it's getting to it that is a pain.
Then it is probably not cold solder joints. You wouldn't think that an lcd TV would need a high voltage transformer but it does. They are very small compared to CRT televisions but they power up the screen. Without it you have no backround light to veiw what is there. There are two neon lamps on either side of the screen but they rarley go bad. My guess is the transformer ot the power supply feeding it.
hi all .ive had the same problem,a thick black line down
screen.sometimes it flickers from top to bottom and other permantly in
view.but i have solved it.forget your ic boards and taking apart tv.have
you got either a ps3 or wii connected to tv.if so unplug power lead
from socket and relocate in seperate socket.make sure the lead is
completely free of any other leads and you might just find this works.i
think the power lead creates some sort of frequency that the tv picks up
.good luck hope it works
We had a Hitachi that did the same thing. If you got it from a dealer.....TAKE IT BACK! The problem will not go away. It is a lamp heat sensor that protects the projector from over heating. These are defective and they don't know what to do to fix them. They will have you change out the lamp, send to a repairman to replace the sensor and he will have to watch it for a week to see if that cures it.
We messed with this for 10 months, before they finally did a buy back and we went and bought a new Sony.
I finally got information from the repair shop. Apparently it is the
upper and lower panel drive. The parts are supposedly not more than a
couple hundred dollars, though I'll let you know when I get the bill. I
do want to say that Hitachi was great when I called them. Even though
my plasma is out of warranty by a few months, they agreed to pay for
parts if I pay for labor. That just might keep me buying Hitachi
products despite the issues I've had with my 2 plasmas.
Go to this site you need a flyback its the only onethey sell for an RCA number 259296 cost less than 50.00 and they provide free tech support so you can do the repair yourself which takes about a half hour. a repair shop will charge abut 400 to replace the flyback. heres the link http://servicemanuals.vstore.ca/