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My TV will not come on.

When you plug in the tv, The lamp light flashes and when you push the power button the standby\temp light comes on for a few seconds and the lamp light starts flashing again.Nothing happens after that.

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  • 106 Answers

Have you checked the lamp? You can cosult your owners manual to find the lamp access panel. Once you determine that the lamp is bad, you can find one anywhere on the internet. Let me know if I can be of further assistance

Posted on Jan 18, 2009

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Www cobyusa com


hi, try this-- unplug tv- hold power button in for 1 minute

plug in tv and push power button- see if that fixes the problem

good luck

Sep 09, 2014 | Televison & Video

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More detail --- Toshiba md20q42 tv/dvd combo not powering on, initially when it happened i Hit power button and lite came on and blinks for about 3 seconds then turns off--- now when i push power button...


Hi
It is probably a power supply problem associated with standby circuit. If this circuit is bad the set hardly comes on and fails. This is a task for a technician to trace the fault through the whole power supply.

Sully

Sep 22, 2013 | Toshiba MD20Q42 20" TV/DVD Combo

1 Answer

LAMP KEEP BLOWING OUT. TOSHIBA 65 HM167


I had this same problem with my Mitsubishi it is when you have fast on mode set it pre warms the bulb to much. I turneed it off and now the bulb has lasted much longer Setting the Power-On Mode feature You can select either Power-Saving or Fast mode. If you select Power-Saving mode and you turn off the TV, it can take several seconds for the picture to appear when you turn on the TV again. Power-Saving mode saves more power than Fast mode. See "Specifications" on page 66 for details. If you select Fast mode and the TV is turned off, the TV will stay in Standby mode for several minutes (see Note below). If the TV is turned on from Standby mode, the full picture appears immediately. To set the Power-On Mode feature: 1 Press Y and open the Setup menu. 2 Highlight Power-On Mode and press c. 3 Press b or B to select either Fast or Power-Saving and press T. Note: If Power-On Mode is set to Fast and you turn off the TV, the following will occur for a few minutes: • The screen (lamp) lights dimly; and • The fans continue to run. This is a function of the Power-On Fast Shutdown mode and is not a TV malfunction. If you do not prefer this, set the PowerOn Mode feature to Power-Saving. When the Power-On Mode feature is set to Power-Saving, if you repeatedly turn the TV on and off in a short period of time, the useful service life of the lamp may be shorter than the average useful service life (- page 63).
this is from your manual not my Mitsubishi please rate this answer if you felt it was useful.

Feb 03, 2011 | Toshiba Televison & Video

1 Answer

I have a technika lcd tv/dvd. It is only a few months old but it is stuck in standby with the red light on the front continually flashing and will do nothing else. Any ideas?


I have same unit (which works in my case) but the red light does not flash on 'Standby', only when it is seeking a station after pressing the red button on the remote.

Nov 16, 2009 | Televison & Video

2 Answers

Tv wont turn on and has a high pitched sound while plugged in


your flyback transformer and driver circuit are operating, but the horiz. output transistor that needs to be in circuit w/horiz output transformer is open and can't amplify the signal needed for the flyback xfmr

Oct 09, 2009 | Televison & Video

1 Answer

SONY Wega Engine .. the standby light comes on...flashes green and the screen goes black...then the TV comes back on again for a few minutes


first you have to check the secondary power supply starting from the ouput of your SMPS. check it carefully.. and also don't forget to measure the B+ voltage, check also the H-out transistor.

Aug 09, 2009 | Televison & Video

2 Answers

TV will not Turn On.


same thing,tv won,t come on,unplug the tv, nothing at all,just yesterday my tv was fine, this is the first time this has ever happen

Mar 13, 2009 | Samsung HC-P4363W 43 in. TV/DVD Combo

1 Answer

RCA D52W136D 52 in. TV/DVD Wont turn on


Does the standby light flash in a set pattern? Some tv have a error code system which pinpoints the fault by flashing the standby light a certain number of times. Other than that my best guess would be a fault on the power supply or a fuse blown internally. Good luck.

Apr 08, 2008 | RCA D52W136D 52 in. TV/DVD Combo

1 Answer

Toshiba TV


Will not power, led blinking
check R640 (1K 1/4w) if open replace ic600 (8-759-670-30)
Standby led blinks slowly, a few times, chassis won't start up
I changed the vertical deflection ic type TDA8170 and I measured two leaky capacitors in the power supply. Better to change all 4 capacitors in the power unit, everything was then ok !

Nov 24, 2007 | Toshiba MD13P3 13 in. TV/DVD Combo

1 Answer

TV won't turn on, timer LED flashing


If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

Dec 19, 2006 | RCA T25061GY 25 in. Combo

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