I'm in Atlanta, Ga and I have a Hitachi 43fdx20b projecion tv about 4 years old with a blurred picture in the lower left hand corner, double images. The tech that came out tried to adjust the convergance on the set, but he stated that it wouldn't line up. He suggested that I get two ICs replaced. Is this a proper diagnosis? With parts and labor, what is the going rate for this type of service and how long should it take to perform?
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Re: Hitachi 43fdx20b blurred Picture
Yes this is a normal diagnoise. Just about every Tube type projection TV set ever made will one day need these IC's replaced. They are not really that hard to replace but you would need to know how to solder and unsolder on printed circuit boards, know the procedture, and then have a service manual handy to adjust the convergence after yoou replaced the IC's. If the tech works on alot of these types of TV sets's, most likely they could adjust them without having a service manua handy. This repair done by a pro should run you anywhere from 250 on up to 400 bucks depending on who does the repair and where. Good Luck
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My 43fdx20b had a pink tint to it also. The picture was clear otherwise. I found, on mine, I needed to adjust the Red Screen control. It was located behind the front panel. I removed the two screws on either side of the front panel and was able to remove the panel. Then I adjusted the Red Screen control. I found that if I tuned in an old Black and white movie I could adjust the color fairly accurately. Good Luck.
The TV computer may have detected an error. See if the problem persist after unplugging the device overnight to reset it. If it does not, the issue may be with the board or its power supply circuit. Probably loose soldering or leaking capacitors.
My guess would be the FBT loc.TH01(flyback transformer) Hitachi p/n#BW03004 which would be far less expensive than replacing the entire deflection board... A shop could ring test the FBT to confirm the failure.
I do know the FBT in this unit has an internal resistor that is prone to failure. It is in-line with the focus block and if it's open it would explain the blur and lack of screen voltage to light the crts properly.
The deflection board is about $290-$350 plus shipping and a FBT is somewhere between $60 - $90 depending on the supplier.
Hope this helps!