Question about Toshiba 50H82 50" Rear Projection Television

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Picture is not centered

My picture when in Gray Bar or Normal mode is not centered. It is about 1" to far to the right.

I cannot find anyway to adjust this.


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Re: Picture is not centered

Geometry adjustments are done in the servicer menu by
skilled technicians only.Adjustment service calls can cost
around 150.00.......T.

Posted on Oct 23, 2007

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My tv picture is not centered.

it shouldn't do that with age but sometimes they will shift. does everything else work fine? is the picture fine otherwise? if there are other issues you may want to look for a fluid leak, or if the colors are misaligned parts may need to be replaced..

otherwise.. its a simple adjustment of horizontal static in the convergence mode.. if you move the green the red and blue should follow. check the positioning of hd as well.. make sure its just the sd that is off center.

once you enter service mode, you can mess up your tv, if the wrong button is pressed, are you sure you want to get in there? let me know and I can proceed with instructions

Jun 26, 2010 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

The blue crosses are too far right of center to adjust

you will need to install a convergence repair kit. You can get the convergence repair kit for your model at which also contains the CD with step by step instructions for the repair.

Mar 28, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Convergence problem

This is out of the service manual

don't forget to write the setting to rom by hitting the pip button twice

Good luck and don't hesitate to ask questions

2.12.5 Convergence point adjustment
Adjustment preparation
(1) Select color to adjust.
“STATUS” - Green
“0” - Red
“ANT” - Blue
(2) Use 4, 6, 2, and 5 to move the cursor position
(dotted lines).
(3) Use thumb stick to move the convergence point.
(4) Three adjustment modes are available:
1. (3x3) Press “STATUS” 5 times (only works
when DCU is in uncorrected state)
2. (7x5) Press “0” 5 times
3. (13x9) Press “ANT” 5 times
For touch-up, only the (13x9) mode is necessary.
This will adjust every cross-hatch intersection point
on the screen.
For complete adjustment, start with (3x3) mode. This
will adjust center point and eight edge points only,
but will greatly reduce adjustment time. Then use
(7x5) mode, and finally (13x9) mode to finish
If “S” distortion appears between cross-hatch lines
repeat (7x5) mode to change calculation process
while adjusting to remove distortion, then return to
(13x9) mode to finish touch-up convergence.
Adjustment procedure
(1) Receive any NTSC signal.
(2) Start adjustment at the center of the screen.
(3) Continue adjustment at next closest position.
(4) Adjust center area first, ending with edge sections.
(5) Press INFO button to perform calculation operation.
This process will take about 2 seconds and no
picture will be seen at this time.
(6) After interpolation, check convergence again and
repeat (1)-(5) if necessary.
(7) When convergence is acceptable, press PIP MODE
to write data to ROM memory. ROM WRITE? is
displayed to alarm system that ROM will be
overwritten with new data. Press the PIP MODE
button again to write displayed data to ROM.
(8) DATA WRITE TO ROM will take approximately 4
seconds and no picture will be displayed.
(9) Green dots will be displayed when operation is
(10) Press MUTE to return to convergence pattern, then
confirm again convergence is acceptable.
(11) Press PIP MODE (ROM WRITE) mode, then press
PIP CH to initialize sensor data positions.
Adjustment procedure
(12) Input any 1080I signal.
(13)Press EXIT key 5 times to exit video mode.
(14) Select an input with 1080i signal.
(15)Access menu and select ASPECT 5 mode.
(16)Press the SERVICE SW. ONLY button to enter to
DCU crosshatch signal.
(17)Repeat steps 2~11 above.
Notes: (1) Display only green for easier adjustment and
match to jig screen. Press “MENU”, THEN
(2) Perform interpolation and data write to ROM
after green adjustment. Once green has been
confirmed to match jig screen, the jig screen can
be removed. Do not readjust the green color
after jig screen has been removed. This is now
your reference color.
(3) Display green and red only and match red to
(4) Display all colors and match blue to green and
red. Touch-up red color if necessary.
(5) Existing DATA in ROM can be read by pressing
the SWAP button 2 times. This data can be used
after replacing a component (CRT, DY, etc.)
Where complete convergence adjustment is not
necessary, be careful not to overwrite this data.
DO NOT write cleared RAM data into ROM or a
complete convergence adjustment will be
necessary. Remember to try MAGIC FOCUS
before starting convergence adjustment to
minimize adjustment time.

Feb 01, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Color adjust


Adjusting the picture tubes is a scary proposition, but since you have already done it...
The easiest way to balance the gray scale is to turn the color all the way down on the set. The next part is easier with two people if the screen controls are on the back of the set. This is the part you saw that has six small knobs on it. There are control for the focus of the red, gree and blue and for the screen level of the red, green and blue. You will want to adjust the screen controls in an effort to get the picture black and white (this is why you turn the color down), hence the term "gray scale". Just make slight adjustments, take your and be patient. It will take some time, but you will get your picture balanced back out in time.

Hope this helps!

Jan 15, 2009 | Philips 50P8341 50" Rear Projection...

1 Answer

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

Dec 25, 2008 | Panasonic PT-53WX42 53" Rear Projection...

1 Answer

Picture problem on mitsubishi medallion ws 55819 model....picture convergence messed up on left and right side of screen (center fine)...problem goes away and set "re-adjusts" after it's been turned on for...

Well I have a Mitsubishi WS-65413 65 in. Rear Projection Television and when I power it on in the morning it looks as if the picture on the bottom of the screen is bending and parts of the picture "double up" but like the person above me said after it gets warmed up it goes back to normal but every 3 or 4 hours it might get messed up for a min...Anyways: Is it the picture tube going out?? If so how does anyone know how much it would cost to repair/replace & What is a "Convergence Module"?? I don't know if my T.V has one of those or not but if it doesnt is that the problem perhaps?? Please help me or ill be forced to go outside... :-( ..... thanx 4 the help ppl!! -
- Zachariah-

May 10, 2008 | Mitsubishi WS-65413 65" Rear Projection...

1 Answer

46 inch rear projection tv bulb replacement model number 46gw944

1) In customer menu, adjust all video controls to center,then
increase "picture" to 3/4
2)Locate focus/screen adjust block above chassis...adjust
RGB screen controls for best mixture = B/W tracking..
Check with customer color level at minimum..should look gray.
If you turn screen controls up too much,you will see faint
re-trace lines in picture.....once B/W looks good,put color level
back to middle...................................................T.

Feb 05, 2008 | Projection Televisions

1 Answer

DLP TV: Left half normal, vertical 6" band center is gray, right half almost black. What's wrong?

No. The optical engine is OK. You need an adjustment in the light tunel. Call a tech to do it.

Nov 06, 2007 | Samsung DLP HL-P4663W 46" Rear Projection...

6 Answers

Picture too large for screen

If the television is connected to a cable box such as Time Warner's HD box, the picture mode can be changed by pressing the '#' on the cable box's remote keypad (where the channel numbers are). This cycles the picture between zoom, normal, and stretch which could be cause of your problem.

Aug 18, 2007 | Toshiba 50H13 50" Rear Projection...

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