Question about Hitachi 42HDS69 42 in. Plasma Television

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Why does my Hitachi 42HDS69 42 inch Plasma TV have horizontal green lines across the screen? I have checked all connections and tried to tweek the color settings but nothing has helped. I went thru th

Why does my Hitachi 42HDS69 42 inch Plasma TV have horizontal green lines across the screen? I have checked all connections and tried to tweek the color settings but nothing has helped. I went thru the trouble shooting guide to no avail. I know the firmware has never been updated because it was my son's TV. Could that be the problem with the green lines?

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  • Hitachi Master
  • 74,136 Answers

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.

Posted on Dec 14, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: hitachi 50v500a high definition tv

I had whole redish/pinkish screen on my 50v500 starting a few days ago, then I read through each of the threads on this site for the samilar problems on my model. I found TVtechmaniac's solution (pasted below) solved my problem. Thank you TVtechmaniac!

Enter the I2C Service Menu, be sure the power is OFF.
1. On the front control panel, press and hold the INPUT button.
2. Then press the POWER button for two seconds.
3. You may keep the INPUT button depressed until you see the OSD with the Service Menu displayed.
4. If you don't see the service menu, please repeat Process making sure you wait until the Power blinking LED stops.
5. Execute the Memory Initialize operation after the adjustment values have been written on a sheet of paper. Highlight “MEMORY INTI”, arrow to the right and hold the button to the right (approx 5 sec.) until a check mark appears in the box. This activates the Memory Initialization.

6. After the Memory initialize operation has finished (10~15 sec, the channel will revert to CH 3.) the pink image symptom should be fixed.
7. Write back the adjustment values from your notes to their respective adjustment parameters in the adjustment mode. (In other words, set the Data Values back to the the Data values written down before the Memory Initialization procedure). NOTE: Make sure the SELECT Button is pressed on remote after every change to the values. Failure to do so will result in the data values not being changed.
8. Exit I2C menu. Press exit repeatedly until you go back to the normal picture.
9. Turn the set off-on and Confirm the picture remains in a good condition.
BE SURE TO COPY DOWN DATA SETTINGS BEFORE INITIALIZING I2C SETTINGS

Posted on Aug 31, 2008

  • 223 Answers

SOURCE: neon green line down right side of screen

I think you are developing a problem on the line output stage of the television. The first thing to do is LIGHTLY tap the side of the tv and see if this cures the problem. If you tap it say ten times and it comes and goes then the problem is dry solder joints. Otherwise I would suspect a faulty component on the line output stage probably the transistor or the transformer. If you can check these faults for yourself otherwise find a competant technician. Hope this helps.

Posted on Oct 04, 2008

  • 223 Answers

SOURCE: Hitachi 42HDS69 42 in. Plasma with red lines

I think you have dry solder joints on the tv. Either on the chroma board, the vertical scan board, the line output board, or on the focus board. If you are going to do this yourself please take all necessary precautions against electric shock and discharge all capacitors that you can as a stray spark from one can cause damage to your tv and yourself. If you are not able to do this find a competant technician. Good luck.

Posted on Oct 05, 2008

  • 225 Answers

SOURCE: Floating Horizontal Line

Sounds like a bad component on the video board. These days, TV techs just swap out boards for whole new ones.

Posted on Nov 17, 2008

Hitachi-mex
  • 26 Answers

SOURCE: vertical lines on plasma tv

Maybe is a lose contact in the conectors of the screen.

You need disconect the conectors, clean with isopropilic alcohol, and reconect the conectors.

Posted on Jul 18, 2009

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There is a horizontal line halfway 3/4 across the screen, it's not black it's just a different color.


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Line faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Faults to all LCD & Plasma screen are similar, irrespective of its brand and screen size.

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If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent.
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Why does my Hitachi 42HDS69 have horizontal green lines all the way across the screen? The sound is fine. The lines are not solid, they dotted-like, like snowy and are not thin. It started all at once when...


If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

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Green horizontal lines across screen


try adjusting the green screen control. remove the front bottom panel of the tv by removing any screws holding it in place. gently pull of the front panel, there are gromets holding it in place, you will be able to gently remove the front, just make sure you get all those screws. now reove the small wodden or plastioc panel. now you will see the screen/focus assy. check to see of the screen controls are the top 3 or bottom 3. adjusted the center screen it's the green one, the other 2 are the red & blue. it is best to adjust in a dark room where the lines will show up easier. good luck

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