Question about Toshiba 55H70 55" Rear Projection Television

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I cannot adjust the convergence.

I just moved it from one room to another and now I cannot adjust the convergence.

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Try asking a service personnel check first maybe there is only some connection failure convergence is set via remote and service mode if can not be set possible problem with the board IC(CONV. IC STK - 2 PCS.)

Posted on Mar 16, 2009

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You have convergence output failure. The output ICs will need to be replaced and possibly a small component like a resistor or two as well. Expect to pay a service company $350-$450 to resolve this.

michtech

Posted on Feb 20, 2009

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I believe this is indeed a convergence problem. it looks like its in 3D. this happened after i moved it from one place to another in the living room. how di i fix this??


Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.

Jul 12, 2011 | RCA HD56W66 56" HDTV

1 Answer

How do you access the convergence calibration menu on a RCA P52926 Rear Projection TV


Hello
To access the convergence calibration:

Press the MENU button on the remote.

2. Press 3 to select the Screen option.

3. Press 4 to select the Adjust Projection TV option.

4. Press 4 to select the Advanced Convergence option (the
Advanced Convergence screen appears).

The green pattern is fixed. The red and blue patterns are adjusted to

the green pattern. The Red Convergence appears first by default.

5. Colored cross-hairs show the current adjustment position on the

grid. To move the cross-hairs to a different position, use the

CH+/- buttons on the remote to move the cross-hair highlight up

and down, and the VOL+/- buttons to move it right and left.

6. Use the arrow buttons to adjust the red pattern. Each press of

the arrow button makes a slight adjustment from the center of

the cross-hairs - you can press and hold the desired arrow

button to make a faster adjustment, and then make fine

adjustments with single presses of the arrow button.

7. Press the INFO button to switch to Blue convergence and follow

the steps above to adjust the blue pattern.

8. Press OK to exit. You will be asked if you want to save the
adjustments

Yes Saves adjustments.

No Returns to the Advanced Convergence screen allowing

further adjustments.
Clear Exits screen without making any changes

Note: Before you use the advanced convergence feature, you must
complete the previous steps to align the tubes

May 19, 2011 | RCA P52926 52" Rear Projection Television

1 Answer

Blue gun adjustment does not move blue line in menu convergence function. Any way to adjust or fix?


No.Fix.Tv have dead parts on the tv convergence board.Tv colors lines R,G,B mis alignment,can't move any colors lines.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead on the tv convergence board.These parts,must be replaced on the tv convergence board to solved the tv picture convergence problems.The shop,will cost u like $300-350 for parts and labors.

Oct 28, 2010 | Toshiba 61H70 61" Rear Projection...

2 Answers

Hi, we just moved the tv from one room to another and now the images are just greens and blues. We lost the colors! What can i do?


Sounds like you have bad solder connections at your convergence ic's.These are large amplifier ic's mounted on large heat sinks.These ic's run very hot and can cause faulty connections at the solder joints.Try resoldering ,if this doesn't fix it you will need to replace them and any surrounding resistors that have opened.

Nov 04, 2009 | Panasonic PT-47X54 47" Rear Projection...

4 Answers

Projectors need to be adjusted i guess they moved when TV was transported


do not move crts manually. go into the menu and adjust the picture's convergence.

Jun 18, 2009 | RCA P61960 61" Rear Projection Television

1 Answer

Toshiba 65hdx82 convergence problem, pincushion


Your TV most likely a failure in the convergence circuits. ( 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.
Here are some photos of convergence problems.

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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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

May 19, 2009 | Toshiba 50H82 50" Rear Projection...

1 Answer

Hitachi 50FX20B 50 inch: Blue Convergence --will not adjust


You need to change convergence amplifiers. Should be no problem for a professional

Apr 08, 2009 | Hitachi 50FX20B 50" Rear Projection...

2 Answers

Convergence settings


Key Functions
7,8,9 = select R, G or B
+100,0,PRE-CH = mute R, G or B
INFO = test/normal
4 = shifts from point to line, grid move
2 = restore factory
SOURCE = H/V select
ADD/DEL = Save
S.MODE = exit
MUTE = cursor forward
P.MODE = cursor back
Volume +/- = moves convergence left or right
Channel +/- = moves convergence up or down
1 = zero's all convergence settings (ugly!)
U/D/L/R = move cursor
SELF FOCUS = saves the convergence adjustment - do before exiting

Good luck.  I let a sub-standard service joint work on mine - they replaced the OEM chips with a higher wattage equivalent, and I've had nothing but problems ever since.

Oct 11, 2007 | Samsung HC-P4752W 47" Rear Projection...

1 Answer

Adjusting CRT yoke for convergence


You shold not have to move the yoke. if the set will not adjust, find the problem in the convergence. It is probably an IC starting to fail. Good Luck

Aug 15, 2007 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

CONVERGENCE PROBLEM


Yes sir anytime you move a projection set ,theres a chance that the convergence could go out of alighnment as it dosent take much. First off your gonna need a cross hatch generator and a service manual and a good kno how on convergence alighnment as when you adjust some controls you need to counter it withanother completely differant alighnment control> so in some cases to get a section or a linearity correction your gonna spend some time. I myself remeber one set I spend 5 hours on after a customer tryed to adjust the confergence them selfs. Not only did it cost a bundle to realighn the gentleman need to go to the hospital as i results of touching a spot on the chassis that he shouldnt have and gave him a shock that threw him across the room. My advice, unless you have convergence experience is to invest in a service person to come out to your home and adjust it for you. I would try first an authorized repair center as they should have all the tools and secrits to the convergence in that set. And Please without electronic experience, even an unplugged set can harm ya. Good luck Try the # and the link 800) 252-5722 or proinfo@jvc.com

Jun 04, 2006 | JVC AV-56WP30 56" Rear Projection...

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