Question about Televison & Video

1 Answer

Zenith PVY5263RK projection TV... want a factory reset for the service menu settings

Found this PVY5263RK on the curb, cleaned the screen/mirror/CRTs and got a decent picture out of it... the convergence is different on each CRT, the red is the furthest out, it looks like it is rotated a few degrees CCW around screen center. Tried to find a setting for rotation or pincushion in the service menu and accidentaly blacked out the 'RGB Contrast' or 'RGB Brightness' and now I can't see the menu alphnumerics to fix the setting. Catch-22, need to see the text to adjust the text brightness...
I thought a factory reset might get me out of this issue, I'll probably get a kit for the convergence problem.
Is there a jumper setting or key combo to force a factory reset?
Thanks!

Posted by Anonymous on

Ad

1 Answer

JonSnell Electronic

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Televison & ... Master
  • 31,255 Answers

The only was to perform a 'factory reset' is to reload the firmware from the manufacturer.

Posted on Mar 23, 2017

Ad

5 Related Answers

Anonymous

  • 119 Answers

SOURCE: Blue convergence

if the problem as atated only needs rotation, then your need to turn the yolk on the blue tube. you will have to slightly loosen the screw that hold the yolk. rutate it the proper way to get it aligned with the other colors. retighten the screw, but do not over tighten, you do not want to break the tube. ALSO make sure that you do not move the yolk UP or DOWN. if so the blue picture will be resized. down the picture goes smaller, up the picture gets bigger. good luck.

Posted on Dec 24, 2006

Ad

Anonymous

  • 80 Answers

SOURCE: Poor color issues.

If the set is 10 years old, one or more of the CRT's (picture tubes) may need to be rebalanced in a process called white balancing. If the tubes are in good shape this can be accomplished with great ease. A good tech will then reset the focus and screen adjustments to obtain an optimal picture. I personally own a 16 year old Sony KP61 series big screen and it looks great with the original tubes, hope yours goes just as long. Joe Weibel Custom Electronics (customelectronics.org)

Posted on Feb 14, 2007

Anonymous

  • 3 Answers

SOURCE: 50" rear projection zenith television

It sounds to me like one of your color tubes went. If I had to guess I would say the red tube is shot. Its cheaper to buy a new tv almost. You can get a quote over the phone and compare the cost of repair to the cost of the tv.

Posted on Dec 16, 2007

doin12volt

Josh Crager

  • 233 Answers

SOURCE: Convergence Problem and Contrast Adjustment

Have you checked all of the resistors inthe convergence circuit as well? If not, check them for the correct impedance.. Remember, you have to pull one side of the resistor out of circuit to measure it correctly. 
If all of the resistors are good, then you have to do a coarse convergence adjustment on the set through the service menu.. if you need the service manual for the convergence directions, I have one uploaded in the technicians corner of techlore.com



Posted on Dec 25, 2008

ladywinn

ladywinn

  • 5138 Answers

SOURCE: Center Target Blue Convergence and Contrast Adjustment

Yes there is a Service Code you have to have to get into Alinement menu and its a Dog following step by step to get in! (1) Turn set on cable (2) Turn sleep timer on 30 min (3) Press Action Twice exit menu 4) now tune to ch 124 (5) adjust vol half way down (6) Now Press vol- on front of TV ,now you should see a RED chk appear in upper corner (7) Now Power on remote hand unit and you shiuld be in menu Press cursor to move Mute locks where you want to aline ADJUST with vol-,Vol+ ch- ch+ for up&down back and forth.If you need anymore help let me know .

Press R-tune to change R-G-B

Posted on Dec 25, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Clean lens on Mitsubishi VS 8087?


hello!really, you can't clean lens to improve the picture quality. it just won't make it worth. I've seen lenses and mirror covered with 1/16 inch layer of the dust, smoke, etc. Wiping them off didn't make much difference if your CRTs(picture tubes) are strong. If those are weak or coolant contaminated(cloudy), no cleaning will drastically improve the picture. Except for "basic" cleaning, which requires disassembling of the cabinet, detaching the mirror and spending couple hours to do so, there is not much you can do yourself. Replacing coolant requires 'top gun" skills, restoring CRTs emissions requires $1,000+ device and knowledge "how to" and 'how not to fry" tubes. If picture is not too bad, but out of convergence, there is nothing to do with any procedures, described above. Especially, if coolant leaked onto boards(very common problem). In any case, there is a MAJOR repair involved, possibly at the board replacement level. Not a D.I.Y. project.If nothing relates to your case, just poke set open from the back(carefully) on top of the "bulge". Clean it with "windex" or "invisible glass", using "bounty" paper towels and try to enjoy the show!good luck,Alex.

Feb 01, 2012 | Televison & Video

1 Answer

Hi I have a toshiba 50h82 tv that is 7 years old with a convergence problem with the red and green lines that is going to cost $400 to fix but now that I am thinking about it before the convergence problem...


You are describing 2 different problems. The convergence problem can be fixed by either resoldering the convergence ICs or replacing them. These ICs cost about $25 each and there are 2. I suspect that the $4oo is for replacing the convergence board. This should not be necessary as the board can be fixed. Also, the brightness problem can be dirty CRTs, dirty mirror or faulty coolant fluid on the CRTs. If the picture was good prior to the convergence problem, the set is probably worth the repair if you can get the board fixed. While the board is being repaired, the service shop should be able to tell whether or not the brightness can be adjusted.

Dan

Oct 12, 2009 | Toshiba 50H82 50" Rear Projection...

2 Answers

My panasonic big screen screen has shadows and fuzzy picture


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
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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.

2c07611.pngSolution #1

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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


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.

Dec 31, 2008 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

How to clean CRTs and mirrors


I have the same problem, spiders actually are showing ip on the screen, did you get a solution on how to open the front panel? please help if you can.

Oct 22, 2008 | Toshiba TN50X81 50" Rear Projection...

2 Answers

1998 Mitsubishi vs-60601 picture is dull and not as vibrant as it should be


the first thing I would do is to clean the lenses of the CRTs they may be coated with dust that will dim the picture. other than that the CRTs may be failing since the phospher of CRTs fade in brightness over time and the only solution is to replace all three CRTs. the CRTs I have discovered are no longer availible.

May 04, 2008 | Mitsubishi VS-60601 60" Rear Projection...

1 Answer

Old hitachi


the coolant most likely needs changing in the CRTs. Another possibilty is the mirror has become dull. use a damp soft cloth to clean the mirror then dry also clean the CRT lenses . Dont use windex. You will be amazed the difference just polishing the mirror can make in picture quality. Looking into the CRT lenses while they are on will tell you if any groth are present in the CRT coolant chambers.

Jan 20, 2008 | Hitachi 46F510 46" Projection HDTV

2 Answers

Blury picture, convergance problem


What you're describing is probably contaminated coolant in the crts. Between the outer part of the crt and the lens is a chamber filled with a coolant (ethyl-glycol) which can become contaminated and cause blurred picture. I'd strongly recommend taking this to a shop the procedure for changing these is a bit beyond the layman level.
Remove Crt assembly. Mark the Crt lens position for accurate reasssembly.
Mark the centering ring's postions to make easier realignment and carefully remove lens assembly by removing the four torx screws. Keep Crt assembly vertical so you won't leak the fluid...
Remove the inner lens by carefully prying up on the edge of it.
Dump out the fluid in the sink and wash the face of the Crt and chamber with water to remove all the fungus and crud. Flush the chamber with isopropyl alcohol to kill all the fungus and dry thoroughly.
Reassemble inner lens and outer lens and tighten all four torx screws.
Remove side filler plug and fill chamber with approved new Crt coolant, reinstall and converge.
Repeat this procedure for the other two Crts. It will need this done whether it looks clear or not !! The green and blue Crts in this unit are prone to this failure.
Hope this helps
Bill

Nov 14, 2007 | Philips Magnavox 51MP392H Rear Projection...

2 Answers

Triple picture and purple bubble on big screen


Your TV most likely has one of two possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
701cb04.jpg
77ea520.jpg
f0900cb.jpg
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.

2c07611.pngSolution #1

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.

578ba6c.jpg
TV set after fluid change

65af323.jpg

2c07611.pngSolution #2


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.

Sep 25, 2007 | Sony KP-48S70 48" Rear Projection...

1 Answer

HCL4715W Rear projection CRT problem


your screen and focus controls need adjustment to acheive a good grey scale picture the adjustment are not on the crt neck boards.(focus block)

Aug 29, 2007 | Samsung HCL4715W 47" Rear Projection...

Not finding what you are looking for?

Open Questions:

Televison & Video Logo

Related Topics:

218 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76376 Answers

Cindy Wells

Level 3 Expert

6101 Answers

Marvin
Marvin

Level 3 Expert

85239 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...