Question about Toshiba 42H81 42" Rear Projection Television

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Sound but no picture, power light flashing

I can only turn off the power by unplugging it. I have sound but no picture at all, no LED messages, just a black screen.

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The lamp could have broken try replacing it

Posted on Sep 18, 2008

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No picture or sound with a red flashing power light. Have replaced the convergence IC's but no change (do not have the chirpint sound). Removed main power board & green LED does not light up


On that model the conv IC is usually not the solution. I believe its the blown capacitor problem with is an easy fix. Check the site www.TvRepairKits.com for a repair kit.

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I have a 2005 Mitsubishi HD1080 big screen that today, when I turned it on, the power light comes on, flashes but the overall screen never come on. Turned & unplugged the power for awhile to see if...


Hello:

There is a problem within the digital board assembly. This is the metal can like unit to the left side of the unit when looking inside it with the back off. The power management is inside this unit. There are 7 1000uf 16 volt capacitors on this small power supply that needs to be replaced. The pwr board is the first you see after opening the Digital unit. Replaced the capacitors with 680uf 16v capacitors instead of 1000uf. After replacing the capacitors looking thru the holes in the digital assembly there will be a green flashing LED, Watch this light for a moment, should stop flashing and stay steadily green if all is normal. Also the power light will still flash for at least 60seconds then go off. Turn on power and happy viewing...Cost to repair this should range around $200-250.00 dollars.

Thk Please leave message...

Oct 07, 2009 | Televison & Video

1 Answer

Sony KP53XBR45 Customer was watching it and the picture just whent out but still had sound. Now when press power button the LED light flashes 7-times and won't turn on. Any suggestions? Thanks, Alltech...


Are you getting sound? If not, then your power supply is faulty. If you sound but no picture, then an IC or STK capacitors are faulty depending on what type of tv it is.

Sep 23, 2009 | Sony KP-53XBR45 53" Rear Projection...

1 Answer

Have picture lose picture tv turns off and on


the lamp has a life cicle. if yours is been used a lot. then the lamp has to be changed. when the tv cannot turn on steady and gets off imm. the computer inside the tv tries to turn off the set but the lamp charges again and the micro tends to keep working. the first step to take in this tv is to change the lamp to eliminate this common source of problems

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how many times does the LED blink ? Thats a error code.

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if aflame led mean part of damage horzontal but if led do not blaze possibility can suplay power.www.modifmax.com

Feb 12, 2008 | Televison & Video

1 Answer

Toshiba 43A61 - No Picture, no sound


If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:
  • Unplug the set and wait a few seconds
  • Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system. If it finds that there truly is a problem, then the set is shut down and the LED will again flash. In this case, you need to call a service tech. Most of the time, however, the unplug/replug routine is enough to get the set up and running.

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Power light flashing/ no picture


I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.

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