Question about Projection Televisions

Open Question

Toshiba 40pw13p projector lamp problems

I recently purchased a Toshiba 40pw13p projection T.V. and am having problems with the crt's (i think thats what you would call them) With top casing and screen off the blue lights up fine, and the other two light up when you first switch on, but the green and red then flicker out. Can anyone give me advice on what is happening, and what I should expect to pay to repair? Please and thanks in advance.

Posted by on

6 Suggested Answers

SOURCE: Magnavox Projection DLP HDTV

I had the same problem...I took the back panel off the tv and took a small desk fan and mounted it so it would keep the bulb extra cool...IT WORKED! I left it like this for about a week. It shut off only twice after about 4 hours of on time. I then disconected the small white ceramic sensor on the back side of the light. (there is a plug conecting it, just follow the wire to it) It has been about 3 weeks now and I have not had the tv shut off yet. (disclaimer...could start fire from over heating? try at your own risk.) If it works for you buy a new sensor.

Posted on Apr 01, 2008

  • 934 Answers

SOURCE: Toshiba 40pw13p projector ic query

NO - - clearly not 140's.... You can upgrade Q751 & Q752 to 150's or 180's which merely have higher amp ratings and thus more reliable.
Also, make really sure that the "seller" you got these from isn't selling you chineese knock offs. They are common in this industry and they may not last ten minutes in your Tv. I suggest some place like ACME out of Florida
where you will be assured of getting Sanyo original Ic's and not some chineese look-a-like.
Also, make sure to test the 3.3 ohm return and low ohm feed resistors in the convergence circuit when you replace the amps. You may find one or more resistors in the return changed in value or open so I would suggest buying a package of those also (10 in a pack).

Posted on Apr 05, 2008

  • 208 Answers

SOURCE: Panasonic 61" lamp bulb

Conact Chris at A-1 Factory Service at 303-722-3333 and he can quote the cost and ship an OEM lamp if you make a credit card payment over the phone. Tell him Les told you to call.

Posted on Jun 10, 2008

  • 4 Answers

SOURCE: Blue screen after 5 seconds took the back off and saw Green Lamp turn off

Just fixed mine with the same problem you all described:

Posted on May 19, 2009

  • 1348 Answers

SOURCE: I have RCA p52754at, the red crt projection lamp

RCA sell them.

Posted on Jul 11, 2009

  • 8617 Answers

SOURCE: Samsung SP47W3HFX tv blue flickering curved line..

If the lines are slightly curved and stationary on about 2/3 of the screen its either the Blue CRT or the Blue CRT drive board which is having the problem.

Posted on Dec 20, 2009

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


1 Points

Related Questions:

1 Answer

Lamp part number

KP-43T70 is a CRT based rear projector and does not use a Lamp like newer LCD/DLP projectors. It uses 3 (Red, Green, Blue) glycol liquid cooled CRT's (like the picture tubes of yesteryear) to produce the image/light as opposed to a Lamp.

Nov 27, 2013 | Sony KP-43T70 43" Rear Projection...

1 Answer

Where can I Purchase a new Lamp for my Toshiba Rear Projection tv Model No 52JM9UA,

Lamps are for DLP TVs, Tubes are in Projection TVs Red/Green/Blue.

Mats has Lamps for $89.00 1-800-628-1118
Tubes cost $450.00 and up Encompass Parts Distribution has service Manual/Parts for this Model

What seems to be the Problem with your TV and what makes you think One of the Tubes is Bad?
Most common problem with this TV is the STK ICs STK392-110. Mats has them.

Jan 09, 2011 | Toshiba TZ50V61 50" Rear Projection...

1 Answer

I recently replaced my lamp light on my 50HM66 the tv worked great for about a week then while watching tv my screen went black and lost sound. When I turn on my tv it begins to shut off and on numerous...

Hey it sounds like you may have one of two problems here one you may have a bad lamp issue or two a bad ballast board I think at this point it will be a ballast it might be to weak to turn on the lamp or it is burning out the lamps to soon here is a link about Toshiba will change the way you think about this BRAND


Oct 04, 2010 | Toshiba 50HM66 52" Television

1 Answer

It tells me that the lamp is not working

The lamp is probably burned out. They go after several years. You would most likely need to purchase and install another lamp(s)

Sep 21, 2009 | Toshiba 55H70 55" Rear Projection...

1 Answer

Replaced bulb - no picture - blue dim light

Ur CRT need a rejuvenation,it a messy job.
It cost u the big screen repair shop about $300 dallors.

Sep 02, 2009 | Projection Televisions

1 Answer

Toshiba 55 inch hdtv lamp

this is a crt type tv- no lamps just crt's if it was moved recently then a seal could have been damaged on the crt cuasing coolant to leak down the neck getting into the socket. this will cause trouble for sure also could have a crack in the crt. look for a sticky liquid in the bottom of the unit.
sometime the crt's can ark and rip out a video output chip on the crt socket check it out.
not common but not unheard of.cheers

Sep 26, 2008 | Toshiba 55H70 55" Rear Projection...

1 Answer

Green light flashing & no picture on Toshiba 40pw13p

There is problem with the lamp. It might need to be replaced. The lamp unit is on the bottom-left side of your TV. Loosen thumb screw (by hand) to take the the lamp unit door. Using a screwdriver, loosen two screws of the lamp unit and carefully pull the lamp unit out.
Put a new lamp in reverse order.

Jun 28, 2008 | Projection Televisions

1 Answer

Ive got toshiba 40PW13P rear projection tv and it has convergence problem where more then one colours apear on the picture.

Well, you didn't ask what you wanted but I think you should try 2 things. One; unplug TV's power cord for 5 minutes, reboot. Two go into the customers menu and try to adjust the convergence.

If these fail call a factory authorized service dealer. Good luck.

Jun 11, 2008 | Toshiba Projection Televisions

1 Answer

I have a Toshiba DLP 62CM9UA

hello everyone, I have been in this field for many years and if you have any problems about projector lamps or your projector ,pls just inform me and i will try my best to solve these problems. I am now still engaged in original projector lamp modules/ original bare lamp/ original lamp with housing/ replacement lamp/compatible bare lamp/main board/liquuid crystal chips/color wheel and other related accessories for the most popular projector brands... if u want to buy projector lamp ,welcome to contact with me. tks&best regards Grace skype:myth_grace

Dec 15, 2007 | Toshiba 62HMX84 62" Rear Projection HDTV

1 Answer

Toshiba TP55F80 convergence problem?

check the convergence chips for bad solders or even the crt sockets, I would lean more on the ic's and surrounding area.

Apr 18, 2007 | Toshiba TP55F80/81 55" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers


Level 3 Expert

57192 Answers

Are you a Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides