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Toshiba MW24F12 not power on

The TV was plugged in and when I came home it would not power on. I removed the back cover and unplugged 2 multpin cables from powersupply to HV board. The power button came on fir a short while and then the sound IC started to get hot. What can I check for a shor or putting out too much voltage? On the chasis it says: DME069B Thanks Leo

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SOURCE: Power button flashing red, cannot turn on or off...

this symptom is usually caused by a breakdown in the power-supply circuit. in most modern receivers (transistorised and/or ic), it may also be caused by a breakdown in the horizontal deflection circuits (horizontal oscillator, pre-drive or drive circuits.). this is because the supply volatages for the tuner, video intermidiate frequency(VIF), video amplifier, sound intermediate frequency(SIF) and vertical output circuit are usually supplied by the horizontal output circuit. since you are not inclined with this kind of job, better bring it to a qualified tv technician. with regards to the cost of repair, i cannot tell you the price since my location is different from yours. but to give you and idea, here in philippines $100 is enough for this kind of trouble!

Posted on Feb 13, 2007

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SOURCE: no power or red led fuse good .toshiba 27df46

Hello Hloggins, hi, your power supply is not producing the pulse needed to start the switching. check for the IC on the oscillator part of the power supply, you need an Oscilloscope to test this. if there is no scope. i suggest you replace the IC.

Posted on May 20, 2010

  • 346 Answers

SOURCE: toshiba 27df46 power problem

check power regulator

Posted on May 20, 2010

  • 168 Answers

SOURCE: toshiba tv, model cf32c50 has a garbled sound issue.

distorted sound sometimes accompanied by buzzing is caused by detuned circuit in the SIF amplifier and sound detector circuit. a distorted sound alone is caused by a breakdown in AF amplifier circuit so try to change the sound ic since its the only options left. good luck!

Posted on Jul 27, 2010

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I unplugged my television, and plugged it back in, but the TV will not turn on now.

What probably happened is the Input mode was reset. Using the TV remote (not the cable or dish remote) look for a Input button or Source button. With the TV on (the screen may be black but you should see a small power light) use the Input or Source button on the remote to select the TV's source (ie cable, component, HDMI etc).

Jan 05, 2012 | Toshiba 57H83 TV

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The stanby light goes on and returns


If the power indicator is blinking on the front of the VIERA, turn off the TV and unplug all HDMI cables that are connected to the TV. Then unplug the power cable from the current power source. Try a different electrical outlet. Remove the power cable from the rear of the TV and plug it back it in (the power cable tab is inserted correctly when you hear a click).

Apr 23, 2011 | Samsung WS32Z308P 32" TV

1 Answer

I have a Model TC32LX70 Serial MX72540116. I also have Verizon Cable. The TV set keeps going off and I have to manually turn it back on. Sometimes it will go off and cannot be turned back on but will...

If the power indicator is blinking on the front of the VIERA, turn off the TV and unplug all HDMI cables that are connected to the TV. Then unplug the power cable from the current power source. Try a different electrical outlet. Remove the power cable from the rear of the TV and plug it back it in (the power cable tab is inserted correctly when you hear a click).
Just unplug the tV from AC powwer wall socket, let it be at theis state for about 30 minutes, replugh the TV only, and check whether the fault rectifes. OK.

Apr 23, 2011 | Panasonic Standard (CRT) Televisions

1 Answer

Watching tv when the picture went black and now the green on light flashes for 30 times and turns off

A green flashing light for this model of TV indicates that the lamp cover is open on the TV.
  1. Unplug the power cable to the TV.
  2. Remove the 2 retaining screws on the lamp cover with a Phillips type screwdriver.
  3. Remove the lamp door completely from the TV.
  4. Remove the two retaining screws on the lamp case.
  5. Lift up the fixed wire handle of the lamp.
  6. Pull out the handle slowly and remove the lamp case.
  7. Insert the new lamp gently into the correct position. Make sure it is inserted correctly.
  8. Using a manual Phillips screwdriver (Do Not use an electric screwdiver), tighten the screws you removed in
    step 3.
  9. Replace the lamp cover and tighten the cover screws.
  10. Plug in the power cord and turn on the TV. After the initial warmup period (which may take up to several
    seconds for full picture brightness), the TV should operate normally.
If any of the following conditions exist, turn off the TV, unplug the power cord, and repeat steps 1–9 to ensure that the lamp unit and lamp unit
door are installed correctly:
  • The lamp indicator flashes green.
  • No picture
  • Dark picture
  • TV will not turn on
If, after repeating steps 1–10, the problem still exists, call Customer Service at 1-800-631-3811.

Aug 31, 2009 | Toshiba 44NHM84 44" TV

1 Answer

Toshiba 32A33 After a power spike

The main power fuse inside the TV may have blown. The rear cover must be removed to check it. Unplugging the power cord from the wall outlet is the first safety item. Finding all the right screws to remove the cover (without taking out some you shouldn't) is sometimes tricky. When you remove the cover the power cord will still be attached inside, so remove the cover carefully. There is a danger of touching residual high voltage near the picture tube. Carefully look for a fuse near where the power cord attaches to the circuit boards. Often the fuse will be obviously burned open (the small conductor inside the clear glass is melted or the glass is blackened). Replace only with a fuse of the same type and amp rating. Putting a higher amp rating fuse or slower acting fuse can have costly and possibly dangerous consequences. Be sure to plug the power cord in when you do your test with the new fuse. If you haven't done anything close to this before, you may want to refer this job to an expert.

Aug 11, 2009 | Toshiba 32A33 32" TV

1 Answer

How do I change the color wheel on my samsung HL-P5663W. I have already removed the lamp and loosened screws for the lamp housing. Doesn't seem to want to come apart. Am I on the right track?

Samsung's digital light projection (DLP) televisions use a spinning color wheel to create the colors that are seen on the screen. If the color wheel becomes misaligned during use, it will become damaged and have to be replaced. Replacing the color wheel on a Samsung DLP television can be done at home, once a compatible-sized color wheel has been bought from a TV supply store.Replacing the color wheel yourself will void any Samsung warranty that might be in place, but is the only solution for getting the TV working again in as short a time as possible.
Put on the anti-static grounding strap to keep static electricity from damaging the internal components of the Samsung DLP TV. Turn the Samsung around so that the back is facing you. Make sure the Samsung is unplugged from the AC socket.
Use the Phillips screwdriver to remove all of the screws from the back panel. Put the screws aside. Pull off the back panel.
Loosen the two screws from each side of the projection bulb's case. Pull the projection bulb out. Put the projection bulb aside. Use the Phillips screwdriver to remove the two screws from the left side panel. Pull the side panel and the circuit board attached to it out carefully and put it down so that the cables attached to it have not been pulled out.
Take a picture of the power cable's position with the digital camera so that you can put it back correctly later. Pull the power cable out from inside of the Samsung's case so that the center panel is free to be pulled out. Remove the two large headed screws from the center panel with the Phillips screwdriver. Remove the top two screws holding the panel to the plastic case using the Phillips screwdriver.
Slowly slide the center unit out a few inches. Take a picture of the projector lens' positioning with the digital camera so that you can put it back correctly later. Unplug the two cables from the left side of the center panel. Unscrew the sensor switch using the Phillips screwdriver. Slide the center panel completely out of the Samsung and put it down on the clean cloth. Blow off the color wheel assembly with the compressed air.
Use the tweezers to remove the green plug from the top of the color wheel cover. Use the tweezers to remove the two cables at the side that are coming from the color wheel. Use the Phillips jeweler's screwdriver to remove the screws from the top, front and back of the color wheel cover. Slide the color wheel cover straight up to expose the color wheel.
Use the Phillips screwdriver to remove the three screws holding the color wheel to the color wheel assembly. Lift the color wheel up and out of the color wheel assembly and discard it.
Position the replacement color wheel in the color wheel assembly. Reassemble the color wheel and reassemble the color wheel assembly. Put the color wheel assembly back into position in the rear of the Samsung DLP TV. Reassemble the Samsung DLP TV. Plug the Samsung DLP TV back in for power. Turn the Samsung on and enjoy seeing the colors displayed properly again now that you have replaced the color wheel.

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1 Answer

36" toshiba suddenly turns off and the little red light flashes

Some el.components are loose on tv circuit board.I have removed the back cover,supported tv picture tube 45 deg.against wall.This tv is heavy!One screw on left holds the circuit board to bottom case.Removed and supported this board on few heavy books.Turned tv on and gently probed all the componets on top of the board with plastic drinking straw.In my case transistors Q-830 and Q-421 needed resolder loose joints.These components are mounted on flat aluminium heat sink strips located sligtly left of center of the circuit board.Also blobed bit of silicone into base hole and foot of alu.heat sink to support it.

Apr 15, 2009 | Toshiba 36A50 36" TV

6 Answers

Toshiba TV, no power, red light flashing

Unplug the TV for 2 minutes and plug it back on.
It should work.

Feb 09, 2008 | Standard (CRT) Televisions

1 Answer


Prior to disassembly, unplug the power plug from the AC outlet without fail. (Turn the power "off".) Short the SB connector [1] pin and [2] pin of the DIGITAL INPUT MODULE PWB. (At the time of assembling) Before the rear cover is inserted into the cabinet,release the short-circuit between the SB connector [1]pin and [2]pin of the DIGITAL INPUT MODULE PWB. After releasing the short-circuit between the SB connectors, do not turn the power on until the rear cover is inserted into the cabinet. Negligence in carrying out the above steps may cause the inactivation of the TV.

Sep 30, 2007 | JVC AV-32S575 32" TV

2 Answers

Tv turns off w/video1 or 2


Sep 09, 2006 | Toshiba 32HFX72 32" TV

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