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HP model cptoh-0602 42" plasma has bad red and white spots in picture 10-15 min after being turned on.

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Hitachi tv LCD blinking red light tv wont' turn on. replaced lamp model 60V500A


I have hitachi lcd rear projection tv model 60v500A at first I was getting a red spot on centar of tv with in two mounths the spot got bigger. I chanched the lamp but now i don't have a picture, the red indicator on tv is now blinking.

Aug 10, 2010 | Hitachi Projection Televisions

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I have a sony kdf-46e2000, there is a pinkish stripe on the top and bottom of the screen, what is causing that?


Looks to me as an serious (but not uncommon) PSP board problem with Sony plasmas. Contact a Sony service center.

What problems have people had with quality control on these displays? Are they covered under warranty?
  1. Certain displays emitted an extremely loud buzz. This was covered by warranty repair.
  2. Certain displays had a problem with the Y/C delay on their S-video input. This was also correctable.
  3. One person reported red vertical lines on his display. Was this covered by warranty? Was it an input problem or a pixel problem?
  4. Afew bad pixels here and there are not covered under warranty. Largeclusters are generally covered. It's up to Sonys discretion. On the plus side, however, bad pixels are becoming increasingly rare. Mostpeople are reporting no bad pixels at all!
CALIBRATINGWhat needs to be calibrated on a plasma?
You needto calibrate most of the same things that need to be calibrated onother displays. About the only things that don't need to be done areconvergence and geometry. You can usually tinker with picture size andposition, but there's no need to deal with keystone or pincushionadjustments, etc.What is white level? What is black level? How are they adjusted?
Theadjustment for white level is usually labeled "Picture" (as onPanasonics) or "Contrast". "Brightness", on the other hand, refers tothe black level. Yes, this is apallingly counter intuitive. This FAQuses the terms "white level" and "black level", since they betterdescribe what you're actually adjusting, and they're the terms used byAvia and Video Essentials.
How do I adjust hue and saturation?
In another mysterious choice of terms, hue is controlled by the "Tint" setting,and saturation is controlled by the "Color" setting. This FAQ uses theterms "hue" and "saturation", since they're the terms used by Avia andVideo Essentials.
How do I set the white level on a plasma?
Youset the white level by adjusting the "Picture" setting. You will needto use a different test pattern than you would for a CRT. For both plasma displays and LCD displays, you should use the 10 IRE grayscalestep pattern. There are two criteria you want to match on your plasma.
First,you need to make sure the white level is low enough that your displayisn't thresholding (or clamping) bright levels. You should set thewhite level low enough that you can see each of the 10 IRE stepsdistinctly. The Sony seem not to exhibit clamping (in my limitedexperience), even at factory defaults, so this criterion may not beterribly useful.
Second, for the health of your display (e.g.to avoid burn-in), you should turn down the white level. Just becauseyour display can display blindingly bright pictures doesn't mean that it should. Plasma displays should be set between 21 fl and 25 fl light output; the Sony comeout of the factory at about 30 fl. On one ISF-calibrated Sony, 23fl was roughly equivalent to a Picture setting of -20 (in the usermenu, not the service menu). To set this precisely you'll need to bringin a calibration specialist, but you can do a lot of good by justdialing down the white level a lot. After seeing the display at 30 fl,23 fl will see very dim. But after a while, you'll find that 23 fl isplenty bright.
How do I set the black level on a plasma?
Youset the black level by adjusting the "Brightness" setting. You can usethe same test pattern you would use for any other display.
How do I calibrate grayscale (calibrate the color temperature)?
Unfortunately,this is one you can't do yourself. You need special equipment tomeasure the color. In fact, most ISF technicians lack the equipmentspecific to plasma calibration (a $15K gadget known as aspectroradiometer). But even the standard color measurement equipment(which calibrationists do have) will do a great job.
Thatsaid, one person who had his Sony display calibrated by an ISF specialist said that the Cinema / Warm setting was reasonably close to6500K out of the box. Using that setting is probably the best you'll doon your own.
If you're really determined to screw up yourdisplay, the RGB drive and cutoff settings in the service menu are used to adjust the color temperature.
How do I adjust the color decoder?
There are several issues here. Generally speaking, the Panasonic decoder seems topush blue a bit. The R-Y Axis Angle and B-Y Axis Gain in the servicemenu are used to correct this behavior.
There used to be aproblem on some Panasonics with the Y/C delay on the S-video input. Seethe Quality Control section for more information.
How do I adjust the gamma?
On the industrial model, there is a set of Advanced picture settings. Go to the Picture menu, turn Advanced on, and then hit the down-arrow. In the subsequentmenu you can adjust quite a few parameters, including select from a fewgamma settings.
This advanced menu appears to be missing from the consumer model.
How do I calibrate my consumer model given these missing menus?
Thereis apparently a way to activate these menus. Perhaps you can find acalibrationist or Panasonic technician would can turn them on longenough to do the calibration.
What's the overall calibration procedure?
In general, the order Avia sets out is the correct one. A more complete list is:
  1. White level (picture)
  2. Black level (brightness)
  3. Repeat (1) and (2) until you have a good balance.
  4. Grayscale (requires special hardware and mucking about in the service menu)
  5. Sharpness
  6. Hue and Saturation (tint and color)
  7. Color decoder (requires use of the service menu)
  8. Repeat (6) and (7) for red and green until you have a good balance.
SERVICE MENUHow do I access the service menu?
In a word, don't. See the service menu warningabove. If you're bound and determined to make use of the service menu,buy the service manual. It contains more than enough information foryou to ruin your display and/or kill yourself.

Aug 18, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

2 Answers

42" sony plasma wont power on


I don't think Sony makes a Wega Plasma. Sony did make a plasma about 7 years ago but it wasn't Wega. Are you sure it's not Grand Wega SXRD or Lcd type

Apr 13, 2009 | Sony Grand WEGA KF50WE610 50" Rear...

2 Answers

Sony projection Tv KP-65XBR10W has no picture or sound


I had a Sony recommended serviceman come in to analyze te same problem for me. Turned out to be a major part called the 'D' board. Cost for part around $400 if it could still be gotten and at least $300 in labor. Goodbye TV! My money will be better spent on a replacement LCD/Plasma TV since prices are dropping and picture quality will be dramatically better than the old beast.

Dec 30, 2008 | Sony KP-65XBR10W 65" Rear Projection...

1 Answer

Blue shadows appear to be behind white objects


TV shows large red spot in middle of tv when dark show are on, you can see it more.  Now blue spots on upper right side too.  Spend way to much on this tv to have these kinds of problems only after 3 yrs.

Nov 16, 2008 | Hitachi UltraVision CineForm 55VG825 55"...

1 Answer

Hello, I have a 1996 Sony rear projection TV and just recently the set will shut off on it's own. If you try and turn the set back on you have to hit the power button "on the set" twice before it...


These sets have had picture tube problems. Have you ever seen the color change, or lines across the picture before it shuts down? If you have, then you have one or more picture tubes going bad. These pic tubes have been known to have loose welds in the gun assembly. Let me know.

Apr 16, 2008 | Projection Televisions

1 Answer

Hitachi really red picture


Wally, 2 things can cause that, 1) bad solder on red driver transistor (mounted on Red picture tube board) 2) bad red cathode in the red tube which means big bucks (new tube), may not even be available on that old of a set. Hope this helps BMW Rider

Dec 12, 2007 | Hitachi 46UX24B/25K 46" Rear Projection...

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