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Model LN83241D has good picture and sound but has 4 lines about 1/2 inch wide made of colored dots. lenes are there even with no signal. about 3 inches apart thanks johnny

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  • jcpatino Nov 26, 2008

    i HAVE A SAME PROBLEM BUT SAMSUNG DOESN'T HELP

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6 Suggested Answers

maklean
  • 1665 Answers

SOURCE: dlp vertical lines

Download your manual (5.5 MB) and see troubleshooting on page 97
http://www.tacp.toshiba.com/tacpassets-images/models/62HM95/docs/62HM95_om_e.pdf

Posted on Feb 09, 2008

Slinteriors
  • 8617 Answers

SOURCE: Samsung 61" DLP 3 Blinking lights.

all 3 lights blinking means lamp has a fault the service manual says replace the lamp. If you need the service training manual for that model let me know and I will post the link as the training manual has excellent trouble shooting breakdowns for that model DLP

Posted on Mar 26, 2008

Shmoopy
  • 53 Answers

SOURCE: TV wont stay on

Sounds like a short somewhere in there. I see old pre-HD big screen sets going for well under $200 on my local craigslist, so look there for a good replacement, because the repair will cost more.

Or fork over about $500 for a good used HD projection set.

Posted on Apr 06, 2008

  • 1779 Answers

SOURCE: have little dots of light on screen and colors are

If your set is a DLP model set with a lamp, then I would assume your Light Engine has failed. These are very expensive to replace, however, if it's not a DLP model then send me your model number for further diagnosis. Also the date of purchase.

Posted on Mar 21, 2009

NJ Logan
  • 31 Answers

SOURCE: 32 inch wide screen black line s 32 pw 6006/25 it

flyback transformer is bad

Posted on Aug 27, 2009

tvtek
  • 1284 Answers

SOURCE: Own a Samsung DLP TV 42 inch and white dots have

The random whit dots you are seeing is more than not the DMD or million little mirrors board. The white spots represent some of the mirrors that are sticking in the on position. In that case they are always reflecting white light from the lamp. I don't concider the DMD board a do it yourself repair since on the older DLP set it requires mechanical alignment as well. The best thing to do is contact a techincian and see what they might charge to repair the TV for you. Please take a few moments to rate my answer...Thanks..

Posted on Nov 22, 2009

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1 Answer

How do I fix?


Probably the replacement lamp is not correctly aligned. HOWEVER, if the band is not on the bottom, but is surrounded (above and below) with good picture, the cause is in the RED color circuitry usually the 'convergence' section. This type of failure is often due to a failing electrolytic capacitor. Repair is problematic and may be in the integrated circuitry.

Jul 23, 2014 | Sylvania Osram Replacement Lamp & Housing...

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
convergence.
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
completed.
(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
PRESS “STATUS”.
(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
green.
(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

CANNOT USE MY TV UNLESS CABLE BOX OR DVD PLYER IS ON


Your TV sounds like its signal board has went out and will need replaced (This is the most common cause of the problems you describe!)
Please rate response and help keep this site FREE!

Jan 03, 2009 | Mitsubishi WS-55809 55" Rear Projection...

2 Answers

Repair on problem blue dot


Good Day, flavrlen;

This is your fix it is not costly and if you handle a screwdriver you can do this in 30 minutes:

PANASONIC:

MODELS: PT-44LCX65, PT52LCX15, PT-52LCX65, PT-52LCX35, PT-61LCX65,
PT-61LCX35.

SYMPTOMS: 1. FUZZY SPOTS
2. FUZZY SPOTS
3. FUZZY SPOTS WITH STAINS
4. FUZZY SPOTS & UPSIDE DOWN
5. FUZZY SPOTS WITH LINES

CORRECTION: SYMPTOMS CAN BE CORRECTED BY EEPROM
CORRECTION TOOL; (LSUQ0100).
Good Luck, big IRISH.

Jul 09, 2008 | Panasonic PT-52LCX65 44" HDTV

1 Answer

JVC TV 27" Black line on top of screen


This is for the original problem.. Not the second post.

It's a problem in the horizontal deflection circuit. The parts will be available, but you will be in for some daignostic repairs also to find out why it failing or if it has failed on it's own.
There should be a few caps near the IC (an LA7840) that could also be causing the problem. Click the link, it will make it easier to locate the part inside.

This is the kind of repair best left to a TV tech, but get it done now and it won't cost anywhere near as much as it will later.

Apr 18, 2008 | Toshiba 42H81 42" Rear Projection...

1 Answer

Toshiba tv - no picture


Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=
good luck
please mark the post with a fixya

Mar 04, 2008 | Toshiba 57H81 57" 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

Hitachi inspire projection tv


use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.

Dec 02, 2007 | Projection Televisions

1 Answer

No picture white screen


check you bulb and your color wheel notorious on this set

Nov 20, 2007 | Samsung HLP4663W 46" Rear Projection HDTV

2 Answers

Does not turn on


you probably had a bad solder connection on one of the convergence modules, it's a common problem with projo tv's. that loose connection finally got bad enough to cause a short in the module, and that's what is sending the power supply into shutdown. have it fixed, and have them replace all of the convergence modules, not just the bad one. if one went out, the other(s) (there are 2, sometimes 3 of them) are the same age, and likely will also fail soon. ...... gee i was looking for a picture of one of those modules, but can't find one. well, anyway the modules are on large pieces of finned aluminum (heat sinks), and are about 3-4 inches wide, 2 inches tall, 1/2 inch thick, are usually black plastic, and have about 20 wire leads coming out of the bottom going down to the circuit board.

Jun 29, 2006 | Mitsubishi VS-5043/44 50" Rear Projection...

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