Question about Toshiba 55H70 55" Rear Projection Television

1 Answer

How do you the ballast

How do youfix the defective ballast

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 195 Answers

How do you know it is bad? i do not EVER recall a bad ballast on a Toshiba. Likely the generic lamp you used will NOT fire--Toshiba sets are VERY particular about lamps. that--or a bad color wheel.

Posted on May 08, 2014

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Lamp does not stay on


You need to find out if it is because of the system control turning off the ballast lamp driver or the fact that the ballast or lamp is not defective measure the connection volts from the mother board to the ballast (NOT THE 350-400 VOLTS FROM THE MAIN SUPPLY RAIL) this will then confirm it may be an over sensitive temperature sensor.

Apr 16, 2013 | ViewSonic PJ860 Multimedia Projector

1 Answer

I have sound to my t.v, but no picture. bulb is good, i read it could be a ballast?


try to check first if there is a voltage input in to your ballast before replacing it. If there is a current going to your ballast and the bulb still not powering for sure the ballast is defective and you can replace it.

Aug 02, 2011 | RCA Scenium M50WH187 50" HDTV

1 Answer

Blue light flashes 5x times for about a minute,manual says bulb,replaced bulb,still doesnt work.


The "bulb" indication means that the lamp has not "fired". This can be due to a defective lamp or a defective ballast. Since you have replaced the lamp, I would next chack the ballast. A professional service shop should be able to help with this. It is extremely rare for a lamp to be delivered defective.

Hope this helps a bit.

Dan

Apr 25, 2011 | RCA HD50LPW175 50" HDTV

1 Answer

Red light bkinks, screen goes black for few seconds , picture comes back and then repeats


You have either a defective ballast or a defective lamp. The lamp is the most likely and is user replaceable. If your ballast is defective you will need to contact a service person

Nov 08, 2010 | Sony Grand WEGA KF50WE620 Television

1 Answer

Hi i have a kdf e50 a12u the bulb went so i relaced it and still no picture just keeps flashing green and red any ideas?


Ballast board it is what powers Lamp on.
Encompass Parts Distribution 1-800-638-3328

You need to make sure you do not have any defective Cooling Fans -If Lamp Fan is Defective Lamp will not come on either.But if Fan is running and Lamp Fails to light Ballast board

Sep 30, 2010 | Sony KDF-E50A12U 50" LCD HDTV

1 Answer

Toshiba TDP-P4 Defect Ballast The lamp starts for ahalf a second, just a little flash. Tried a new lamp same thing. I suspect the ballast. Used de service manual and from Power Supply it gets the 5v wich...


the 5v from the power supply is just the signal voltage. the ballast, once ignited, sends about 350vdc to strike the lamp for a few seconds then lowers to 40vdc to maintain it. unfortunately, $261 is a standard price for it.

Oct 02, 2009 | Toshiba Office Equipment & Supplies

1 Answer

When turning power on, nothing happens and then it blinks red five times in a row. KDS R50XBR1


The five blinks indicates a lamp driver failure. The lamp driver is commonly called a ballast. Odd thing is that these set rarely have ballast failure. But the microprocessor in your set thinks the ballast is defective and is rendering the five blink code.

Jul 09, 2009 | Sony KDS-R50XBR1 50" HDTV

1 Answer

My rear projection tv stopped working the lamp has not blowen but the lamp is showing its open circuit with a multimeter. Should it be open circuit? the model of the lamp is 120w BP96-00271C


yes it is high resistance could be your balast... do you hear the arc in the spark gap on the ballast?
if not you may have no power to the ballast as in an open fuse or the ballast is defective or your bulb is defective ..they may not look blown.

Oct 07, 2008 | Televison & Video

1 Answer

TV WILL NOT POWER UP


The ballast uses open ended high voltage. Both the start current, and the running voltage must be verified.

Normaly the ballast is replaced unless you have the test jigg which is essentialy the specified lamp simulator.

If there is a sensor fault that indicates there may be a potential cooling problem, or an unsafe fault condition (bad socket), or if the lamp is sensed as being defective, the ballast will be shut down.

Jerry G.

Apr 17, 2008 | Samsung DLP HL-P5663W 56" TV

Not finding what you are looking for?
Toshiba 55H70 55" Rear Projection Television Logo

Related Topics:

101 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73647 Answers

Jaime Hernandez

Level 3 Expert

2315 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

Are you a Toshiba Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...