Question about Televison & Video
My 55 inch rear projection tv has a bright white cloudy appearance to it. I have adjusted the tint, color, contrast and convergence to no avail. I have also removed the back and wiped down the inside of the screen and the lenses. Please help!
SOURCE: no color adjustment
*CONVERGENCE SERVICE MODE PROCEDURES*
*Note: This procedure is required for all of the following geometry and
*Using the remote transmitter, enter the following seven-button sequence to
activate the convergence mode.*
* 06 - 25 - 97 - Menu (M)*
*The "Opening Menu" will appear offering choices:*
*Use Channel up/down to*
*Select a Channel with Video*
* Remote control key functions:*
* Use arrow up/down and left/right: Adjust Convergence*
* M: Advance "cross" location*
* Up, Down, Left, Right*
* 3: Exit Convergence*
* Status: Abort/Cancel Changes*
* M: Begin Convergence*
*Note: video information must be present to correctly adjust the
convergence. A signal source is required to lock the vertical and
horizontal sync. After entering the "convergence service mode" verify the
presence of a video source by confirming the presence of active audio (use
the volume up function on the remote). Use the channel up and down function
on the remote to select the desired tuning source.*
*Select item "M" from the first menu, the "Convergence Menu" will appear
featuring 5 possible selections.*
* Channel 3*
*1. green geometry*
*2. red To green Convergence*
*3. blue To green Convergence*
*4. green To red Convergence*
*5. green To blue Convergence*
* Status: Abort/Cancel Changes*
*CONVERGENCE TOUCH UP PROCEDURE*
*1. Enter the "convergence service mode" as described above in the
"convergence service mode procedure".*
*2. Select the desired color requiring adjustment. Note: Do not
select Green Geometry (1). This procedure is described under "Major
Convergence/Geometry Alignment. If Green Geometry is altered during this
procedure a "Major Convergence/Geometry Alignment" maybe required. *
*3. Cover the Output Lens of the single color presently NOT being
adjusted. Example: If you select Green to Red Convergence (4) cover the Blue
*4. The highlighted adjustment Icon (Cross) should be illuminated on
the middle left side of the screen. Make the necessary Convergence
Adjustments using the following Remote Keys:*
*· Use the Arrow Up ( ) to adjust the selected color up.*
*· Use the Arrow Down Key ( ) to adjust the selected color down.*
*· Use the Arrow Right Key (-) to adjust the selected color to the
*· Use the Arrow Left Key (+) to adjust the selected color to the
*5. Move to the next location to be converged. It is not required
that the full Convergence Sequence be followed while performing the
"Convergence Touch Up Alignment Procedure". The following alternate Remote
Keys allow for positioning of the Icon to the desired adjustment location:*
*· Key 2 on the Remote Transmitter will position the Adjustment
Icon upward on the screen.*
*· Key 8 on the Remote Transmitter will position the Adjustment
Icon downward on the screen. *
*· Key 4 on the Remote Transmitter will move the Adjustment Icon
to the Left.*
*· Key 6 on the Remote Transmitter will move the Adjustment Icon
to the Right.*
*6. Return to the "Convergence Service Menu" by selecting Key number
3 on the remote transmitter or by sequencing the Icon to the last adjustment
point at the lower right corner of the screen and pushing the Menu (M) Key
on the Remote Transmitter..*
*7. Repeat steps 1 through 6 for other required Convergence
*8. To Save the Adjustment completed in the last procedure,
Exit/Save the Convergence Service Mode by selecting Key 1 on the Remote
Transmitter. This forces the corrections to be written to the EEPROM on the
*Note: To save the convergence corrections made above you must exit the
convergence menu by selecting Exit/Save Data (1)*
Posted on Jul 05, 2008
SOURCE: vs 4561 weak picture
Good Day, Techwanab;
Look for this to be your problem: CHECK FOR OPEN L2C50 PART #325C146030 ON THE SIGNAL PCB, OR BAD CONNECTIONS AND LEAKY CAPS IN THAT AREA.
Hope this was helpful and not too late.
Good Luck, big IRISH.
Posted on Jul 31, 2008
Your TV most likely has one or more possible problems.
Problem #1: Convergence Chip Failure ( common problem )
Here are some of the most common symptoms and example photos of a convergence problem
Here is a quick test....
Using your original remote go-to the tv settings then goto the convergence section.
Try to adjust the red and then the blue convergence.
You should be able to move them up, down, left, and right.
If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.
You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.
Problem #2 CRT Fluid is Cloudy
Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.
Picture of a set that needs the fluid changed.
TV set after fluid change
What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.
Posted on Feb 13, 2009
I'm not quite sure about the convergence issue, but the glowing white haze is a sign that the fluid in the color tubes is dirty and usually can only be fixed if the fluids are changed out(draining and refilling). This is not recommended for someone who does not know what they are doing, it is best to get an expert to do this work because it can be dangerous as well as hazardous to your television and quite expensive. Mostly all rear projection televisions will have this issue, but I find that just upgrading to a newer-model television is usually better, maybe a flat panel LCD(Liquid Crystal Display)(stay away from unknown brands and plasmas, although Vizio's LCDs will get you more bang for your buck). On an LCD, all you really have to worry about is cracking the liquid-crystal display, which is quite fragile, but can be avoided if no hands or objects touch the LCD. On the other hand, best of luck in fixing your Philips rear-projection.
Posted on Jun 19, 2009
Sounds like your fluid in the CRT's need replaced. I would recommend a servicer take care of that problem. The corrosion that ethylene glycol can do to components is vast if you spill it on any of the PC boards. ( You know it as Anti-freeze ). Play it safe---Make a Call.!
Posted on Jul 24, 2009
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