20 Most Recent Toshiba TheaterWide 52HM84 52" Rear Projection HDTV-Ready Television - Page 8 Questions & Answers

From further research it sounds like you experiencing a failure of your DMD board. Here's a forum dedicated to the topic of your television.

http://www.avsforum.com/avs-vb/archive/index.php/t-438276-p-7.html

thats the protection ciruts causing the off and on,probably 1 of the modules.had simular problem with mine and it turned out to be the pcbaudio/video module a common problem with this mobel of TV costs about 168$ can for the module i hope this helps.From Moonbasealpha cheers mate....

I have the same TV, your projection bulb has quit/failed.

A loud pop was heard and the picture has gone followed by a red led fault light clicking on and off.

if your tv is less than 1 year old, and you registered it with Toshiba, you could qualify for a free replacement.

otherwise expect to pay 200.00 for a new bulb from Toshiba.

only good thing is you can replace it yourself, only tool needed is a phillips screwdriver.

you can check EbaY for prices less than 175.00 to 150.00
i am on my 3rd bulb within 4 years....

good luck!

I have the same TV, your projection bulb has quit/failed.

A loud pop was heard and the picture has gone followed by a red led fault light clicking on and off.

if your tv is less than 1 year old, and you registered it with Toshiba, you could qualify for a free replacement.

otherwise expect to pay 200.00 for a new bulb from Toshiba.

only good thing is you can replace it yourself, only tool needed is a phillips screwdriver.

you can check EbaY for prices less than 175.00 to 150.00
i am on my 3rd bulb within 4 years....

good luck!

I am checking with some of my sources at my other job to see if there is a source for the DMD panels.We are running an auto submission program to their distributors.

i have the same problem as you,also my audio jacks no longer work.sending for repairs i will contact you as soon as my tv comes back.with the information whats wrong..and if it can be fixed. I am a fellow Toshiba guy who goes by the handle Moonbasealpha...

Ughhhh.....I'm in the same boat! I'm so bummed......we called our cable company on the off chance that it was a cable thing. They were very helpful and tried to give some tips but nothing has worked. I'd appreciate any help!

On my toshiba I just use the input button on remote.

I think it's time to search the net for a schematic and a service
manual.

The flashing light combination probably represents a special
diagnostic code referenced in the manuals, which will save
you a great deal of time and frustration.

You can probably also get the meaning of the codes from
tech support.

Finally, electronic knowledge without manuals will not
help you that much (I am an ex-electronic tech, now
computer engineer too), because the entire TV is controlled
by software.

There are tons of secret codes and key sequences
(from the remote) which factory repair technicians can
use to diagnose or tweak the machine, including
color balance, video and format parameters, reseting
usage timers, clearing error codes ... etc.

There may also be an USB port for diagnosing the TV
via a computer with custom software.

I am afraid that without a service manual, basic voltage
and continuity checks are the limits of your investigation.

Martin.

Hello Mr. Bond.

I believe that you have a rear projection TV where the light from
a powerful halogen light bulb is focused onto a micro-prism
viewing screen through a Liquid Crystal Video Chip.

The light-bulbs have a finite life, degrade with time and eventually
burn out. It is likely that you have a burned out light bulb.

Replacement light bulbs range from about $150 to $250 from
the dealer, depending on the exact model.

The bulbs are somewhat cheaper by mail order from the Internet,
if you can wait that long. Also, some bulbs are available without
the integral mounting bracket, further reducing the cost, but
skilled hands and careful handling is required.

Never touch the glass of a TV light bulb with your bare fingers.
The bulb runs very hot, and residual sweat from your fingers
may cause th bulb to crack and explode.
(use gentle white cloth gloves when handling the new bulb.

I believe that bulb just burned out on its own, and this has
nothing to do with your attempt to connect a DVD player.

On my TV (Sony 60"), a flashing green light indicates a
normal power-up/ bulb warm-up cycle. If the bulb fails to
respond, the TV will detect a bad bulb and shut off again.

It's either signal board or light engine and unless you're really pretty good at electronics neither one is something you should tackle. I do have the service manual for this unit and I would be glad to send it.. Just drop me an email [email protected] and make sure you include the model number as well as what it is you need.. I get almost 650 emails a day so it's really hard to remember who's email goes with what problem. :) Good Luck Bill

   The theater wide feature 1 may not be available in all tv channel formats.
Try the downloadable manual at www.retrevo.com

the ballast should make momentary arcing sound and orange flash in its spark gap tube when it 1st trys to light the lamp. look for it in the darkness it will be easier to spot, as you listen for it. make sure you are buying toshiba factory replacement lamp.

You can get this part from http://www.partstore.com, I believe it comes as an assembly

Lamp life is only a few thousand hours. Hopefully its only the lamp that made to noise. Don't turn on again until lamp is replaced.

Send me a copy of the service manual, and I will tell you what you need to check on this set before you throw it away. Send it to, [email protected] and remind me what set this is for, what website the set is located in.

One of the color guns is out. Either the blue or the green. The red gun is working great. Are you doing the repairs yourself? I'll see if I can find you a service manual.

This is a known issue with this TV. The following might resolve it: Check Mute and Volume: Ensure that the TV is not muted and that the volume is set appropriately. Sometimes accidental button presses can lead to muted sound or low volume. Inspect External Speakers: If you're using external speakers, verify their connections. Loose cables or faulty speakers can cause sound issues. Test Different Inputs: Connect a non-HDMI device (such as a DVD player) to the TV. Observe if the sound distortion occurs. If it doesn't, the problem might be related to the HDMI signal from your Virgin box. HDMI Troubleshooting: If the issue persists with the DVD player over HDMI, consider the following: HDMI Cable: Check the HDMI cable for damage or loose connections. Virgin Signal: Contact Virgin to inspect the signal/lines and replace the box if necessary. Mainboard Replacement (if needed): If the sound distortion persists, it could be due to a faulty sound processor chip on the TV's mainboard. In this case, consider replacing the mainboard. TOSHIBA 42RV500E, 42RV500T, 42RV500Y, 46RV500E, 46RV500T User Guide (manualmachine.com)

There may be loose contact or track open in main board.So try to check the main board thoroughly where you may find the loose of connection or track open.

1. Locate the Battery Cover: Look for the battery cover on the back of the remote control. It is usually a small compartment that can be easily opened.
2. Remove the Battery Cover: Depending on the design, there may be a latch, screw, or sliding mechanism to secure the battery cover. Use your fingers or a small screwdriver to open the compartment.
3. Remove Old Batteries: Take out the old batteries from the battery compartment. Pay attention to the orientation of the batteries, so you know how to insert the new ones correctly.
4. Check Battery Polarity: Take note of the positive (+) and negative (-) signs inside the battery compartment. Make sure to insert the new batteries with the correct polarity to match these markings.
5. Insert New Batteries: Place the new batteries into the battery compartment, ensuring they are properly aligned with the correct polarity. Press them down gently to make sure they are secure.
6. Replace Battery Cover: After inserting the new batteries, close the battery compartment cover securely. If it has a latch or screw, make sure it is fastened properly.
7. Test the Remote: Point the remote at the device it controls (such as a Toshiba TV) and test whether it responds to your commands. If the remote is working correctly, you have successfully replaced the batteries.
8. Dispose of Old Batteries: If the old batteries are no longer usable, make sure to dispose of them properly. Many communities have designated recycling locations for batteries.