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I have a toshiba 52hm84 and the lamp ballast r1 resistor is buzzing how do i fix the ballast

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Remove it - get the part number - order one online - and swap it out. Hopefully that is the root cause and it will be fixed

Posted on Apr 26, 2013

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Posted on Jan 02, 2017

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SOURCE: how to replace ballast in toshiba 52hm84 dlp rear tv.

how do I change the lamp?

Posted on May 15, 2009

axeist
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SOURCE: 52HM84 Toshiba DLP with apparent failed lamp (replaced ballast)

I found R3 on the original board to be open, along with reading an open on CR1, D5 and D6. All the other transistors and the transformer check out. The only thing I have to do now is find out the specs of the diodes. The replacement board also had CR1, D5 and D6 open (R3 was OK). There had been some threads on various locations where remanufactured boards had bad components (the transistors were changed but not some of the other components).

Posted on Jan 18, 2010

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Replaced the lamp in our 52HM84 and it still does not work.


Ballast board it is what powers Lamp,
Call Encompass parts Distrubtion 1-800-638-3328

Apr 12, 2010 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

52HM84 Toshiba DLP with apparent failed lamp (replaced ballast)


I found R3 on the original board to be open, along with reading an open on CR1, D5 and D6. All the other transistors and the transformer check out. The only thing I have to do now is find out the specs of the diodes. The replacement board also had CR1, D5 and D6 open (R3 was OK). There had been some threads on various locations where remanufactured boards had bad components (the transistors were changed but not some of the other components).

Jan 18, 2010 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

52hm84 Lamp not working sometimes


Its the ballast. I don't know your skill level so I can't say wether you can or not. It may no longer be available. As of 3 month ago the light engines needed to be removed and sent to Toshiba to be rebuilt. The ballast is on the light engine assy behind the lamp.

Dec 01, 2009 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

Problem with Toshiba DLP Projection TV Model #52HM84


It is possible the lamps may be defective or that they may be the wrong replacement for this model, as it may have a different wattage setup with the ballast. If you want to try to order the TB25 lamp from a different vendor, you can order the original Toshiba replacement lamp for this model (52HM84) from a major Toshiba parts distributor at the link below:

Toshiba 52HM84 Replacement Part TB25 Lamp / Bulb

Apr 10, 2009 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

Toshiba 52HM84 DLP TV with new bulb but the lights keep blinking


They exact way the lights blink are telling you what the failure is. If the tv is firing the lamp and the lamp is bad, you will hear a buzz sound for about 1 second. The tv tries 8 times before it gives up and spits out the lamp error. Check the user manual for led diagnostics. If you put in a new lamp but still have issues, you've likely got a bad ballast (most common on this model) or colorwheel (less common). Both are part of the optical block (light engine) and I don't believe they're available as individual components from toshiba.

Nov 28, 2008 | Toshiba 52HM95 52" HDTV Projection...

1 Answer

Toshiba 52hm84


Search "Ballast replacement for Toshiba 52HM84" on your favorite web serach engine

Oct 25, 2008 | Televison & Video

1 Answer

Toshiba 52HM84 Ballast replacement help


It is very easy to fix/reolace the ballast in these sets. I just fixed the ballast in mine yesturday,by replacing a single resistor on the ballast board (the resistor is labled R3 on the ballast), Google "Toshiba ballast replacement" and there is a nice write up with pictures to guide you through it. If you can soulder you can fix it and save alot of money.

Oct 07, 2008 | Toshiba TheaterWide 52HM84 52" Rear...

2 Answers

Toshiba 52hm84 DLP buzzing sound after replace bulb?? no pic


You have bad capacitors in the power supply that took out the regulator, or the ballast circuit is defective. Not really a repair for the novice. Good Luck

Nov 06, 2007 | Toshiba TheaterWide 52HM84 52" Rear...

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