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LG rear projection model DT62SZ71DB won't always display tv, sometimes it has like a test pattern and colour is bad now too.

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6 Suggested Answers

  • 192 Answers

SOURCE: HDTV Rear Projection

The color wheel is the most common problem when it comes to noise from DLP's. To determine if it is a color wheel or fan: Turn on the set. When the noise starts, turn off the set. If the noise goes away within 5 seconds, then the color wheel is bad. If the noise goes away after one to one and a half minutes after the set was shut off, then one of the fans are making the noise.

Posted on Apr 01, 2007

Slinteriors
  • 8617 Answers

SOURCE: need to reset lamp life

Make sure the TV is on and:
1) Press and hold the Menu button on your TV SET
2) Press and hold the Menu button on your REMOTE CONTROL (at the same time)
3) Continue holding BOTH buttons down for 5 secconds or until the Service Menu pops up
4) Release the MENU button from your REMOTE CONTROL, then release the MENU button from the TV Set.
5) Press and hold ENTER (or OK) on the TV Set, then:
6) Press and hold MUTE on the REMOTE CONTROL (while still holding down the ENTER button on the TV SET
7) Holding both buttons down should lead to the Lamp Life Hours screen to pop up.
Release the MUTE button the REMOTE CONTROL, then release the ENTER (or OK) button on the TV Set.
9) To Check if it was a success
10) Now press SELECT, then SELECT again to confirm the reset of the counter
** If the procedure above does not work swap steps 5 & 6.
** For a few special models (including 44SZ8D), you might have to change step 5 to:
5a) Press Enter on the TV Set to enter the Position Adjustment Screen
5b) Press and hold Enter on the TV Set (the TV should go back to the main Service Menu, continue holding Enter) and now also hold down the MUTE button on your REMOTE CONTROL. After about 5 seconds, your Lamp Life Counter should pop up.

Posted on Jun 21, 2008

  • 927 Answers

SOURCE: picture colour ghosts red,blue greeb

Good day, thu90399;
Sounds like you may have a circuit problem, the convergence IC's may have failed, the STK's IC's is very common problem with TV's.
I hope this was helpful, good luck, big IRISH.

Posted on Jul 20, 2008

  • 4090 Answers

SOURCE: My LG rear projection TV RE40NZ60RB colour is ghosting

The DM Board needs replacing DIY is not recommended unless you have electronic skills

Posted on Aug 20, 2009

  • 11 Answers

SOURCE: How to reset the lamp timer count on a LG rear projection TV

1. Press the OK or enter button on the front panel and MUTE

button on the remote control simultaneously (About 5 seconds).

2. Press the VOLUME (>) button.

3. Press the OK or enter button.
Lamp time will be reset.

Posted on Mar 07, 2011

dcramer531
  • 1654 Answers

SOURCE: I have a LG RT54NAT1T

That issue is caused by the convergence chips going bad. They both need to be replaced as well as some of the resistor may be bad. To fix the board it usually runs around 300 to 350 dollers. You an order these parts yourself on the net from several places and they have instructions for the replacement of the boards or the convergence chips.

Posted on Sep 21, 2011

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1 Answer

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Possible that the alignment of the projection has gone out of alignment. so it must be reset with a alignment and colour setting test pattern.This might require expert help for perfect setting. get estimate.

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I have a LG RT54NAT1T rear projection TV. The colours are not lining up


That issue is caused by the convergence chips going bad. They both need to be replaced as well as some of the resistor may be bad. To fix the board it usually runs around 300 to 350 dollers. You an order these parts yourself on the net from several places and they have instructions for the replacement of the boards or the convergence chips.

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Please Post your model number and I will be able to assit you with your Problem

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You may try to get into the service menu and adjust screens/drives level(procedure below). But first turn the color off completely and adjust you brightness to mid-range, what you`ll want to do is a grey raster or bring it as black and white as you can while adjusting the red/green /blue guns or tubes. Also get a piece of paper and pen because you`ll want to record the original values of the items you may change. You want to go into the adjustment menu. Hope this will help Good luck
In quick sequence on the remote press:
MUTE - 1 - 8 - 2 - POWER buttons.

The TV will turn On with the Service Menu displayed.
ADJUSTMENT - TEST PATTERN - SET OPTION BYTE - FACTORY RESET

Select the function and use the VOL+ button to enter.
Save settings and exit by pushing MUTE twice then POWER .

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1 Answer

I have changed out the bulb in my LG dt62sz71db rear projection, but it still doesn't start. the bulb lights for a second then back off again. can you help with a solution?


wine you trun it on do you hear eny noise
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1 Answer

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These are the Tests that should be run to determine which board is bad.You should call a good TV Tech if you are not familiar with this TV.
- The DDP1011 on the DMD board has a feature to display internal test patterns.
- DNle, which is an end port in the digital board, has a feature to display internal test patterns.
- The analog board sends signals to ADV7402 on the digital board.
- The analog board is the first output and the digital board is the second one, followed by DMD, which is the final one.
■ Diagnosis By Module
1. Access Service Mode
(In Standby mode, press "Mute", "1", "8", "2" and "Power" to turn the screen on and enter service mode)
2. Check if there is an error in the DMD board
DDP1011 → TEST PATTERN → Press the right arrow key:
Options of FULL WHITE, BLACK, RED, GREEN and BLUE PATTERN are displayed on the screen.
If "Pattern" does not appear, this is a DMD board error.
3. Check if there is an error in the digital board before the DMD.
When the DMD board has been determined to be error free based on the test patterns:
FACTORY MODE → DNIe → TEST PATTERN normal display: no error in the digital board.
If "Pattern" does not appear, it may be from a DMD board or ATI error or there is an analog board malfunction.
4. Check if there is an error in the analog board.
Check for a power signal from the analog to the digital boards

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2 Answers

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Need more input, what model, what brand, do it turn on if you hit the side.

Regards

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