I have a hitachi 53sdx89ba and i can get the sound to work but no picture please help
TV picture not there, audio sometimes, replaced Q777, then got picture. pic went out, now PROTECT LED is back on, Why is this happening?
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Discharged Flyback Transformer. Removed main pc board from bottom of TV and flipped over, no apparent damaged components or blown board traces were found. Noticed a lot of flux in various areas on the board that seemed unusual (maybe TV was worked on before as I bought a showroom demo at Circuit City). Used a plastic screwdriver to remove all flux between connections on ICs, Transformers, Flyback Transformer, and various other components. Cleaned all debris, dust and crud accumulation (TV is over 10 years old and there was alot around the Flyback Transformer) from both sides of board using a lightweight paint brush.
Used a magnifying glass to check all solder joints for possible cold solders and found none. Did the same for Power Supply Board. Checked various ICs and Power Transistors for opens or shorts (in machine) and they seemed fine. Reinstalled boards, said a few Hail Mary's and fired it up.
The protector Led no longer flashed under power and lo and behold I got picture and sound!
I cleaned the lens on the projectors (again 10 years of dust accumulation) did a magic focus adjustment and it works fine!
After reading other fixes, I fully expected it to die after 10 minutes so I left it on all day and against all odds it still works.
What was the fix......Dirt buildup on and around Flyback and other components,,,,,,Flux conducting electricity between contacts on Flyback and other components.....or oxidation on connectors between Power Supply and Main Board.....I don't know.... all I know is that for the moment I saved around $ 300 - 400 in repair bills by doing it myself.
Most HDTVs cannot properly stretch incoming HD signals, however, if the
programme is true HD, you should not much of the image off-screen -
most new HDTVs have about 2% overscan and the tickers should be on
screen when watched in the appropriate stretch mode.
I also have a Hitachi 53SDX89BA and I bought it with the same assumption as you: that it's HD ready. The specs in the manual states the following: "Full 1080i HDTV Capatable with Set-Top Box". I beleive this means that it does not include an HD tuner, but that it is capable of handling up to 1080i resolution. Normal (non-HD) resolution on this TV is 480i.
So here's my problem: Until recently, I wasn't using the HD settings on this TV because I don't have a set top box, nor do I subscribe to any HD content from my cable provider. However, I just purchased an XBox 360 along with an XBox 360 HD-DVD player (it's an XBox peripheral that works with the game console). The Xbox asks you to choose the resolution output (480i, 720i or 1080i) to match your TV's HD capabilities. When I select 1080i output and change my TV's settings to receive an HD signal, the picture quality is amazing. However, the video signal seems to get lost ocassionally (i.e. TV picture gets scrambled) but then it comes right back. This does not happen when I select a 480i output on the Xbox...but of course, the picture isn't as crisp and clear as a 1080i picture.
I don't know if this is a problem with the TV or with the Xbox. Has anybody else had this problem??
If it is only a few days over the warranty call immedieatly, if it is much over that then these newer Hitachis are in my opinion not worth repair, and I mean the newer under $1000 units the parts are near the origianl cost sometimes.