My tv was working fine no problems then this morning i powerd it up and the darn thing was like 3d i tried the convergince button on the front panal on the hitachi 55in and to no avail it shows 8 + signs plus a box in the center now i can line up the colors somewhat good across the center left to right but because of the top drooping down in the center and bowing up from the bottom in the center i cant seem to get it all straight. what do i need to do to bring the top center up from bowing down and push the bottom down to align it all up. this is very frustrating and if its not an ez fix is it going to be expensive to repair it was new in 1999. i like it alot.
An expert who has achieved level 3 by getting 1000 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert whose answer got voted for 500 times.
Re: alignment of the 3 lenses on my hitachi 55fx48b
Typical convergence fault that every tube type projection set has had after several years of being used. they are STK ICs and are soldered into place. If you know how to work on solid state electronics, then its not that hard to do, but if you have no training, its not a job for the elctronic layman. It shouldnt cost more then 300 to 350 in most places and thats a bit high from around here.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures look alike.The tv convergence board have dead 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.
The red convergence IC has failed. There are I believe 3 total convergence IC in your tv. The prefix for all three is STK392-xxx. If you can solder you can try and replace yourself otherwise you need a tv tech. With Hitachi's sometimes some critical resistors will change value as well and have to be replaced with exact equivalents. Sorry wish it was an easy solution..
Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.
Common Symptoms include.... •Screen looks 3D •Colors don't line up •One or more colors can't be adjusted when using the convergence menu. •Screen is bowed or warped. •TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems
You can see some more examples and find a fix using this link on Fixya - CLICK HERE
The straight answer is you need a new flyback transformer model number FBT2436493A. No need to check anything, just get one and have someone qualified in soldering put it in. Don't go poking around in the unit, their are capacitors that are charged with a couple thousand volts. It can kill you.
On older Hitachis the most common jumpy picture is loose connections on the vertical output IC. If you can tap on the main board and get it to act up then this is most likely the situation. I believe the location is IC401 and is located toward the front of the set on the signal panel. Not too tough to repair if thats all it is.