Question about Hitachi 57SWX20B 57" Rear Projection Television
TV has never been touched until today, 12-31-12. I pulled the front inspection panel off and could see all 3 lamps lit. On the convergence screen the red and blue are aligned perfectly but no green shows up just a white, red, and blue and all are aligned, no bowing in picture at all). What can I do to repair?
a 6ya Technician can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Technician (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Did you ever find the solution to removing the front screen? I have the same problem. Please write at email@example.com
Posted on Jan 21, 2008
I'm trying to fix the issue on my 43FDX20B. So far, I'm able to move the lines up and down, but can't get the left/right motion to fix it. The attached link has the dynamic mode instructions, so you can correct this issue yourself.
The only thing I didn't have was the screen overlay jig the manual talks about. I decided to create one myself and use the screen as a beginning template. I went to our local hardware store and picked up some home window weather covering. The roll cost about $15, is a clear strong plastic and the template was very easy to create. I used a straight edge after I put dots on the plastic and measured the lines for being square and equal after I took it off my tv. Good thing is that if you don't like what you make the first time, you have a 25' roll to use to try again (ha).
Posted on Mar 02, 2008
If the convergence is off more than 1/2 inch or so you can't adjust. you have a failure of hardware. most likely the output IC. This set has 2 outputs for convergence. Each output contains 3 circuits, Six circuits altogether 2 red ,2 blue and 2 green. The normal customer adjustment will only alow adjustment of blue and red. They should be converged onto the green. There is a much more complex adjustment in the service mode for Geometry and convergence. These adjustments are only needed when you replace a failed componnent like the output ic. These ICs have been upgraded several times since the production of this set. The latest and most powerfull version is STK394-160. If feel up to it I suggest changing both outputs and the corresponding output resistors. Then do a complete geometry and convergence alignment.
Posted on Apr 16, 2009
SOURCE: Red and Blue color bowing...
Hi, you`ve lost your convergence IC`s, At our shop here in western florida this runs right around $246.00, price will depend on your geographical location and who you call. gl, video-tek
Posted on May 29, 2009
The 392-150 is a higher current device then the 110---you can use either--this is normal in the hitachi sets---I usually replace both with 150's---check the led that does not light---should indicate which voltage source is bad---if it is one of the 2 voltages for the convergence ic's(one is a positive and the other a negative voltage) then the convergence Ic's may be bad---look for any discolored resistors around the ic's---one way to tell if it is a convergence ic is to de-solder both ic's and see if the set turns on(the convergence will be out the window) but if it comes on change both and do the alignments with the Hitachi remote. By the way----the led should have a location number printed on the top of the circuit board.
Posted on Aug 07, 2009
Tips for a great answer:
Jun 03, 2012 | Hitachi 50VF820 Projection TV
Mar 18, 2011 | Hitachi 60V500 60" Rear Projection...
Jul 16, 2010 | Hitachi Televison & Video
Feb 20, 2009 | Hitachi 50V500 50 in. HD-Ready LCD...
Jan 03, 2009 | Hitachi 60V500 60" Rear Projection...
Oct 05, 2008 | Televison & Video
Dec 30, 2007 | Hitachi 53FDX20B 53" Rear Projection...
Dec 17, 2007 | Hitachi 53UDX10B 53" Rear Projection...
Oct 01, 2017 | Hitachi 57SWX20B 57" Rear Projection...
60 people viewed this question
Usually answered in minutes!