Question about Toshiba 56HM66 56" Projection HDTV

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Tv wont boot up

My tv only shows yellow light blinking 3 times ,over and over and tv wont star ,check lamp looks ok im running out of options model 56hm66 toshiba

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  • ruddy2 Jan 28, 2008

    yellow light blinks- wont start up- fan is running-unplug from wall wait few seconds to minutes push power button on side- push exit button on side- push power button on remote- tv comes on runs about 20 to 30 mins. tv shuts off automatically on its own blue light stays on sometimes it turns back on sometimes it doesnt have to go thru the same routine above to get it ti turn on again and it keeps repeating

  • terilothrop Jan 30, 2009

    We are having the same problem and replaced the lamp. It worked okay for about a week, then started the same thing again. We checked the lamp and it is still intact.

  • stacben Feb 27, 2009

    the same 3 yellow blink over and over. will not turn on, did replace the lamp. so now what?

  • Xris77 Mar 01, 2009

    Mine is doing the same. I replaced the bulb and it only worked for about a week. Sometimes thought it took 3-5 tries before it would fire, then it would come on. Now nothing at all. Both the old bulb and the new do not look blown in any way. Something else is causing this.



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Just called Toshiba about this. After the TV attempted to boot up several times.. the blue light, power light, came on. But the yellow light, lamp light, gave it 8 tries (just like the manual says it will) then the blue light goes out, and the yellow light (lamp light) comes back on with a red blinking light (red light is the fan light)
So mine was the fan gone bad! :(
So if you have a red light it's the fan, if it is the yellow light, its the lamp, and sometimes it may be both. If not, its the data board, which you can replace and reload too. So it's all fixable.
Try unplugging the TV wait about 2 hours. Then plug it up and turn it on. If it still does not boot up its one of the parts listed above. Thanks

Posted on May 06, 2012

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Replace the lamp.

Posted on Jan 10, 2009

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There is an unusually common issue with these TVs after nearly 3 years of use. Like florescent lamps, the lamp ballast eventually starts to slowly fail. This is one of the first indicators of it being near death. The TV will occasionally come on normally and stay on, and then, either not turn on, or turn off after a period of time. For the period of time that it auto-shuts off, check the fan first. If the fan runs fine, then the issue most likely points to the ballast. Toshiba is aware of this issue. Go to the Toshiba website and enter your TV's serial number. You may have one of the serial numbers covered under the lifetime replacement warranty that Toshiba has put these TVs under due to multiple issues with the light engine including the lamp ballast. If you're confident with just replacing the ballast board or pulling out the light engine (really easy by the way), you can advise Toshiba and just have them send the updated part designed to last longer.

Posted on May 04, 2014

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When i turn on my tv it tries to boot, blue mitsubishi home screen come up, i hear fan then it all shuts off while green light blinks.

Try a reset. Start by unplugging for 1 minute, then plug back in & if still won't restart try the following. If none of the following work, you will need a technician.

Initializing the TV in many cases can remedy a problem.
In the 2006 product line Initialization is now a user function.
Pressing the front panel "INPUT' and "FORMAT"
buttons at the same time activates Initialization. When
complete all user settings will have to be set again. The
table in Figure 4-3 list the User Initialization procedures.
Note: Pressing INPUT and FORMAT is the same as
the Initialization in the Option Menu (MENU-2-4-7-0)
Order Name Procedure Results Notes
1 System Reset Press <System Reset>
on Front Panel
Hardware & TV operating
software reset.
POWER/Timer LED flashes for 60
seconds. No customer settings
are changed.
2 User Initialization
Press <INPUT> &
<FORMAT> on Front
Panel at the same time.
All customer Audio &
Video settings are reset to
factory default.
All customer settings will need to
3 Reset System
From the remote, press
<MENU> <1-2-3>
All customer settings
except V-Chip are reset to
factory default.
Netcommand, Channel Memory,
etc., will need to be re-configured.
PROCEDURE 4 Initialization
From the remote, press
<MENU> <2-4-7-0>*
select "INITIAL" press
All customer settings are
reset to factory default.
All customer settings will need to
Figure 4-3
Figure 4-4
LED Indications
The front panel LEDs, refer to Figure 4-4, also assist in
determining the cause of a symptom. Figure 4-5 illustrates
normal LED operation. Figure 4-6 shows the
LEDs response when a problem is detected and indicates
the possible cause.
Indicator Condition
Off Off Off Off (standby)
Blinking green
fast Off Off Initialization (10 - 65 seconds)
Off Off Blinking
green fast Lamp runs for 1 min after PTV off
Green Off Off Power On
Blinking green Off Off Power On Timer is set
Power LED Status LED Lamp LED Condition
High Temperature - check ventilation air flow.
(Temperature sensor is disconnected.)
Off Off Blinking yellow Lamp cover is open.
Lamp failure (Lamp fails to turn on)
Off Off Red (Lamp turns off after lighting)
Lamp is broken
Off Blinking Red Off Fan Stop
Off Red. Off Circuit failure. (Run Error Code Check)

Apr 08, 2015 | Mitsubishi WD-65731 65-Inch 1080p DLP HDTV

1 Answer

How do i determine if my ballast board or capacitor is bad in my toshiba hd tv model no 57HM167?

The chances of the ballast failing are small on this model. Count how many times the Yellow light flashes before it pauses. Then google 57HM167 and the amount of blinks. ie " 57HM167 Yellow light flashes 3 times" That will tell you what you need to know. You can also post it here and we can help. I suspect you have a stuck fan(the fans are monitored to see if they are spinning. If not, they will not allow the TV to start up). Or you have the cover for the lamp not installed all the way. There is a switch that the lamp cover activates and the the TV will not turn on without it secured.

Apr 02, 2015 | Toshiba Televison & Video

1 Answer

What does the yellow blinking light mean on Mitsubishi WD65837


Here is a whole list for you :

Mitsubishi Blinking Codes :

Constant Green - TV is Powered On
Constant Red - Lamp Failure
Constant Yellow - DMD temp is very high
Blinking Yellow - Lamp cover is open
1 Red Blink, 6 Yellow Blinks - Color Wheel Failure
3 Red Blinks, 4 Yellow Blinks - Lamp Failure
3 Red Blinks, 6 Yellow Blinks - Exhaust Fan Not Working
3 Red Blinks, 7 Yellow Blinks - DMD Fan is not rotating
5 Red Blinks, 7 Yellow Blinks - Ballast Problem
6 Red Blinks, 6 Yellow Blinks - Lamp Missing, Bad Cable between lamp and ballast

And the Lamp cover must be here somewhere in your TV :

For more you can refer to the below link :
Mitsubishi DLP TV Blinking Code Errors Explained Overview of Each...

Jul 07, 2014 | Mitsubishi WD 65837 65 in. HDTV

2 Answers

What is a pc broad cause my tv won't come on and i have heard it need a pc broad

If you are seeing the yellow light blinking 3 times repeated over and over the boot data is corrupted. Download the firmware update(link below)from Toshiba and unzip2_bing.gif the files and folders,copy the unzipped files & folders to a SD card (like a camera uses,I used a 2 gig). Unplug the tv and insert the card into the slot hidden behind the cover above the HDMI inputs. Plug in2_bing.gif the tv and watch the yellow blinking stop and a solid blue will light when done. Unplug the tv, remove the card,plug in the tv and all will be good. You could now install the update per it's instructions.

May 02, 2010 | Toshiba 65HM167 65" Projection Television

2 Answers

My Toshiba Model no. 65HM167 does not power up. The lamp light on front of t.v. flashes and thats about it. I replaced the lamp but still no go. Help.

CK the Lamp Fan if it stops running Lamp will not light and if thats ok Ballast Board it is what turns Lamp on!
Visit Encompass Parts Distrubtion for Parts List and numbers 1-800-638-3328

Mar 23, 2010 | Toshiba 65HM167 65" Projection Television

1 Answer

Not picture the green light blinks for a min and than the yellow light stays on. I checked the lamp its good and I cleaned the filter>

If the standby light blinks upto 3 times then the issue may be related with the LAMP.

If the Standby light blinks more than three times then the TV requires service to diagnose the issue.

Provide the Model # of the TV so that we can provide the exact solution.

Good Luck!!!!!!!!!!!!!!

Sep 13, 2009 | Televison & Video

2 Answers

Mitsubishi WD-62525 yellow blinking status light

Check that the lamp door is closed all the way. There is a saftey switch that closes from the door being on all the way. If not the status light will keep blinking. There is also a switch on the air filter door.

Jul 13, 2009 | Mitsubishi WD-62525 62" Rear Projection...

3 Answers

Toshiba 56hm66 yellow light blinks 15 times

unfortunately I don't have any solutions for you. I have just started to have the same problem and have only replaced the lamp. i was going to move on to the ballast but wouldn't want to if it going to be a waste of time. Did you ever find any way to resolve the prolem?

Jul 09, 2009 | Toshiba 56HM66 56" Projection HDTV

2 Answers

TV was working earlier, today came home no green power light no nothing

I looked up the manual online - after you replace the bulb, you need to reset the bulb life timer. Using the TV remote push the menu button, SETUP menu, select the lamp reminder option to reset the hours to zero. That might help the status indicators.

Sep 04, 2008 | Mitsubishi WD-62525 62" Rear Projection...

3 Answers

Tv keeps turning off?

cutta, you will most often hear a click on boot then the fans start up and lamp will then fire. The picture will start to show what point does it shut off? and do you hear a click when the tv is turning off? Is it the complete tv shutting down, fans and everything that turns off? Do you see any lights on the the front panel "POWER", "STATUS" or "LAMP", what are they doing? If you see a Power, Status or Lamp light after it shuts off the below are what they mean if there is an issue. POWER - STATUS - LAMP - CONDITION/ISSUE: Off - Yellow - Off - Temp. high/dirty filter/excess room temp Off - Off - Yellow - 4000 hrs. Lamp usage warning Off - Off - Blink Yellow - Lamp Cover open Off - Blink Yellow - Off - Air Filter Cover open Off - Off - Red - Lamp failure (failed to turn On or broken) Off - Blink Red - Off - Fan Has Stopped Off - Red - Off - Circuit failure (short) or DVI cable disconnected If you want to check for the last "Error Code", after you first turn the TV on, by pressing the front panel ?DEVICE? and ?MENU? buttons at the same time and holding them for 5 seconds, it activates the Error Code Mode. The ?Power LED Light? blinks/flashes (1/2 sec delay) and then flashes again denoting a two digit Error Code indicating no problem or an error has occured since the last Initalization. i.e. "Power light" blinks 3 times (1/2 second delay) and then blinks 4 times then 1 sec delay and repeats a few times. This would mean "Error 34 - Lamp abnormality". See below for error codes..... Error Code - Description or issue 12 - No Error detected, check Power Supply 32 - Lamp Cover is open 33 - Air Filter Cover is open 34 - Lamp abnormality 36 - Light Engine (DMD or LAMP Fan stopped) 37 - Exhaust or Lamp Ballast Fan stopped 38 - Lamp temperature high 39 - DMD temperature high 41 - Short is detected 44 - DVI cable between FMT & Engine disconnected. Sorry for the long answer but it was an open ended question.

Jul 11, 2007 | Mitsubishi WD-52525 52" Rear Projection...

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