Question about Mitsubishi LT-40153 LCD TV

1 Answer

Reoccurring audio problems

When TV is powered on picture will work but no audio. I reset the tv and sometimes it works and sometimes I have to reset 4 or 5 times ... If ever works. Over time the reset will not work at all and I will take to be repaired. The tv is about 6 or 7 yr old and this is the fourth time I've had these problems. Any suggestions other than foul language???

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    New Friend:

    An expert that has 1 follower.

  • Contributor
  • 49 Answers

All TVs today are actually computers which also receive TV frequencies. The audio has to be decoded from the digital signal then goes to an analog audio amplifier. When you hear no sound with the picture do you hear anything coming out of the speaker? A hissing sound when the volume is way up?

If you hear a hiss then the amplifier is working but not getting anything to amplify. This could be due to a bad solder connection or a problem with the CPU and/or a switching circuit. Without a schematic I'm guessing here.

The bottom line is, there's probably nothing you can do to fix it unless you're used to dealing with SM (surface mount) technology and can touch up all solder connections from the CPU to the audio amp.

Whoever is fixing the TV should be able to tell you where you're losing the signal from the RF decoder to the amplifier as long as the problem is not before the decoder (which is probably all in software that the CPU runs.)

Posted on Oct 05, 2017

Ad

6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Anonymous

  • 579 Answers

SOURCE: mitsubishi 65831

If the lamp has failed, don't fall for just paying big $$ for a new one from Misubishi. Instead, of buying their whole lamp assembly, just buy the bulb from me or many other sources on the net and install it into the assy yourself.

Posted on Dec 31, 2007

Anonymous

  • 1139 Answers

SOURCE: Mitsubishi ED-52631 does not turn on

Hello Getoxygen,

This sounds like a DM problem. To repair this you will have to replace 4 or 7 capacitors (1000uf 35v).
Here are the instructions. Depending on your set this may differ a bit, but the central theme is getting the DM free to be worked on.

This was taken from a TV repair site used by TV technicians.

STEP 1) The DM Module loose. But itcan't be rotate out because of the upper plastic guide.
1a7fdcf.jpeg

STEP2) How the DM Module is rotated out of the TV case. Allow thewires
entering the DM Module to be an axis point of the rotation.That way they barely move and don't get snagged or stretched.
77fb6ba.jpeg

STEP3) The DM Module out and the side cover of the metal housing removed.
0c96755.jpeg

STEP 4) My setup to do the soldering work.
f2549ef.jpeg

STEP5) Up Close of the daughter board and the seven capacitors on
MitsWS-55859.
ad80bef.jpeg

STEP 6) The daughter board unscrewed and flippedover where you will be soldering.

9d5fa94.jpeg
STEP 7) The UpperPlastic Guide that must be removed to rotate the DM Module out of theTV set.
593265d.jpeg

STEP 8) Get this wooden horizontal shelf out (4screws) and getting the upper plastic guide out becomes easy.
726c802.jpeg

STEP9) Helpful Hint about the wooden shelf and the platic guide that bothneed to be removed.
2a80392.jpeg

I hope this helps
Thank you,

Posted on Nov 07, 2008

Anonymous

  • 41 Answers

SOURCE: Hello Need expert advice on

The 18 code does not exist. To read the code press device/input button and menu button at the same time on the tv. count the LED flashes 1st digit short pause 2nd digit long pause, repeats.

The red status lamp indicates there is no communication between the format board and the DMD board (light engine). The most common problem for this is capacitors on the Format board that require hours of labor and possibly sending the entire electronics package to Mitsubishi if the caps don't do the trick. Expect a very large bill, contact you local Mitsubishi Authorized repair facility about this, DO NOT take a chance on your corner repair shop to know how to accomplish this.

Posted on Dec 21, 2008

localwonder

Michael Masters

  • 6784 Answers

SOURCE: 50" Plasma turns off and back on without picture; audio stays on

Yes, you are correct. there are a few component issues on the power circuit board that will need to be replaced. the mani component will be the capacitors and transistors.if not repaired soon, this unit will completely stop working.

Posted on Mar 11, 2009

Slinteriors

Sonny Berry

  • 8617 Answers

SOURCE: New bulb/TV still shuts down

Its far more likely the result of the power pwb capacitors that have failed. As the 34 code will appear if the capacitors fail on the Power PWB. You can get the V26 DLP Power repair kit at the following link.with free instructions
http://servicemanuals.vstore.ca/product_info.php/pName/mitsubishi-v26-dlp-power-pwb-repair-kit/cName/repair-kits

Posted on Apr 30, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My Sony Bravia tv has a problem with the screen getting dark on the right side. Sometimes the screen is normal, and then sometimes it goes dark and/or red. There is a small square (2 inches) that has a...


This tv have a problems with a board that call T-CON decodering board.This T-CON decodering board sit at the bottom in the middle of the LCD screen panel.This T-CON decodering board,decodering the tv incomming broadcasting tv signal before it go into the tv LCD screen panel to produce pictures.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish T-CON decodering board for the replacement.

Apr 23, 2011 | Televison & Video

7 Answers

Durabrand TV BH20040 - - - weird picture problem. HELP!


Unplug the TV overnight and hopefully that will reset any menu changes you have done. I will attempt to find a link to the manual, but I have been unsuccessful in the pass as Durabrand is a Walmart house brand.

Sep 02, 2008 | Durabrand DWT1905 TV

3 Answers

No picture on my TV RJ8530 S/N 61998120 what do I check out to get it working? Bishop A. Isaiah Jackson, Sr.


Do you hear audio when the TV is turn on or any light indicator on the front panel?
Due to the age of this TV, there could be a number of failures in the circuitry.

Aug 06, 2008 | Televison & Video

1 Answer

Dvd to amp to tv hookup has little to no connections


It is a lose connection symptom when you wiggling the chord it will be fine it is a cold solder its needs to resolder the connection base so it become firm and works normal again.

Hope it may helps you;

Regards:
VOTIT

Mar 23, 2009 | Yamaha RX-V463 Receiver

1 Answer

Samsung LCD tv - Turns on and off by itself.


Since you have another TV with the same problem you can try using an antenna(indoor model ok) to see if the cable is causing the problem. If not return TV before the warranty expires.

Mar 03, 2009 | Samsung LN46A850 LCD TV

1 Answer

Menu not working.........


Resetting the TV
If the buttons on the remote AND the buttons on the TV case do not work (channels do not change and you cannot open or navigate the menu), the TV has stopped responding. Reset the TV as follows:

NOTE:
Some TVs have a reset button. If available and accessible, try using the reset buttons before using the steps below. Using the reset buttons can save time.

clip_image001.jpg
1. Unplug the TV power cord from the power outlet.
2. Unplug any connected devices (DVD, Set-top boxes, etc...)
3. Press and hold the TV power button for five seconds.
4. Plug the TV power cord back into the power outlet and turn on the TV.
5. Open the on-screen menu to confirm that the TV is responding again.
6. Turn off the TV and reconnect the devices.
7. Turn on the TV.

hope this may help;

Regards,
VOTIT

DON'T FORGET TO RATE:

Aug 21, 2008 | Panasonic TC-26LX60 26 in. LCD Television

1 Answer

No Sound


first you want to make sure and check if the problem is common for other inputs as well (dvd ,player antenna A or B)
or if you have a cable or satellite box sometimes you may have problem with those too( reset them by uplugged them too)
if evething ok check tv menu and see in audio secction if speakers are not turne off.if still you have a problem the audio amp inside the set its having a problem.

Jul 03, 2008 | Toshiba CF30F40R 30" TV

2 Answers

Audio not working on proscan ps61700


I have a GE 46 in TV that had the same occurrence. I believe it is a sign that the amplifier is overheated or stressed. The way I fixed mine was to unplug TV and leave off for a few minutes -then plug in. I discovered this by accident when the power went off one day and the sound returned (had been using my vcr audio output plugged into my stereo for weeks!) This fix will work for weeks-sometimes months-evidently resets the circuits inside the amp somehow. Last time this happened I also removed the back of TV and blew out the dust with compressed air while it was unplugged-still have sound 4 months later without a "reset"-so I'm guessing it did help .

Feb 29, 2008 | Proscan PS35660 TV

1 Answer

Still posessed!


These tv does have loose of audio problems im concern about looseing picture . Try unplugging tv for 5 minutes it will reset tv very common fix for audio. Tv that are less then a year old are sometimes covered under new warr call manufacture on that.
There is a microprocessor on these that lockup and when you unplug it. it resets it.

I have a tv shop and have helped customers get exchanges under a year especially if you complain


good luck i hpe i helped Thanks DOCTOR VIDEO

Dec 31, 2007 | RCA 32V550T 32" TV

1 Answer

Picture Freezes and Black Screens


Reset by unplugging the TV for 2 minutes and the going from there. Maybe a bad digital board since thats the only way images can et frozen on a TV.

Mar 10, 2007 | iLO 3200 32 in. LCD Television

Not finding what you are looking for?
Mitsubishi LT-40153 LCD TV Logo

Related Topics:

59 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Televison & Video Experts

matt martin
matt martin

Level 3 Expert

1257 Answers

The Knight
The Knight

Level 3 Expert

76177 Answers

Ekse

Level 3 Expert

13434 Answers

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

Answer questions

Manuals & User Guides

Loading...