Question about Toshiba TheaterWide 52HM84 52" Rear Projection HDTV-Ready Television

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Replacement of a Toshiba 52HM94 Ballast Unit

I have removed the light, then took out the two screws holding the plug that the ballast plugs into, removed the same metal plate holding the plug, but still could not get to the ballast. It is located behind another metal plate and seems to be screwed to the chassis. However, I got both two screws removed from this chasis, but it will not budge or slide out so I can not get to the ballast. I then took off the back of the set (13 screws) and I can slide the whole assembly partly back, but still can not totally access the ballast because again this perforated metal plate is in my way. Any suggestions?

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

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Posted on Jan 02, 2017

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SOURCE: ballast replacement

Your set uses the Phillips UPH100W 1.3 100 1amp bulb part number 6912V00006A which uses Ballast EUC 6913V0002A and the actual ballast isMB03CA part number 6871VSMB13F I would contact LG and give them these numbers. Is your ballast bad or is the BallastEUC bad? Let me know if I can help you further.

Posted on May 12, 2008

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SOURCE: Cant find a ballast

The ballast is actually a switch mode power supply that powers the lamp. It is an
integral part of the light engine and is not replaceable. The light engine has a price
tag of $950. If you replaced the lamp with an after market one and not the Toshiba
lamp you can experience the same problem. Some of the after market lamps will
not fire at the same voltage as the Toshiba. The blue led will come on solid and the
yellow blinking. It will try to start 8 times then give up.


Posted on Dec 31, 2008

  • 37 Answers

SOURCE: where do iget a ballast for a panasonic pt50lc14?

my recomendation would be save your money, and spend it on a new tv. by the time you pay for it you could of bought yourself a new tv...even though it wouldn't be a 50" you'll be much happier in the long run.........

Posted on Mar 12, 2009

  • 1 Answer

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

  • 2 Answers

SOURCE: Ballast UART Error

Same thing happened to me. After one minute of running, lamp shuts off and 5 power led blinks and 3 ready led blinks, indicate UART ballast error. Well, I purchased a new lamp, and installed it, and the problem was gone. I looked closely at my old lamp, and it showed a little blister inside, and a tiny spot of white residue, perhaps it was the whole problem there, although I don

Posted on Oct 03, 2010

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How do you change front headlight blub 2008 sonata

how do you change front headlight blub 2008 sonata

Nov 28, 2009 | 2008 Hyundai Sonata


Ballast Diagnosis and Replacement in LCD Projection TVs.

When you have replaced the <a href="">lamp</a> in your LCD projection TV, and you still get lamp warnings and blinking standby lights or the light levels are extremely low, compared to the old lamp, your ballast probably needs replaced. Odds are it shorted out or developed problems when the old lamp failed.<br /><br />This is not a hard unit to replace on most sets but may require a little <a href="">knowledge</a> and familiarity with LCD units. The ballast makes the voltages for the lamp circuit. The ballast is generally located near the lamp and has two large soft rubber wires going to the lamp assembly. If you follow the wires from the back of the lamp, the box they lead to is the ballast. <br /><br />Replacement of the ballast involves removing any screws holding the cover on and the board in the <a href="">TV</a>. Disconnecting any wires from their plugs. Mark them with a sharpie prior to removal for easy assembly using a different number for each connector. <br /><br />Reassemble the unit using the new board and make sure that all covers are in place and all wires are properly connected. You may be able to <a href="">download</a> a service manual at <a href=""></a> which will help with part numbers and has instructions on the removal and replacement of the ballast as well as diagrams and pictures to help with disassembly and reassembly. Retrevo does not have all service manuals. If you want one and are willing to pay about $16 US go to <a href=""></a> . The manuals can be downloaded instantly.<br /><br />Any parts needed may be obtained at <a href=""></a> or <a href=""></a> . <a href=""></a> sometimes will have the service manual for <a href="">free download</a>. Again they do not have everyone and it depends on your model, but it certainly is worth checking prior to purchasing one.<br /><br />When the job is complete your unit should be operational. If there are more problems try my tip at <a href=""></a> to troubleshoot the additional problems.<br /><br />Good luck with your <a href="">troubleshooting</a>. If you need more help let me know.<br /><br />Thanks for using FixYa and for the great rating. Please consider a testimonial. Thank You.<br /><br />hardrocko <br />

on Jan 14, 2011 | Televison & Video

2 Answers

How to install hid on a bmw 325xi 2006

BMW E38 99-01 HID TYPE 7 Series 1PC Halo Amber Projector Headlights
Parts Identification:
Projector Headlight
Halo & L.E.D.
Bottom of the Headlight:
Ballast Bracket, Halo Wires(red/black)
Turn Signal Adaptor
10mm - 8mm socket
Philip Screwdriver
For more information about how to install your vehicle, come visit our youtube page on
Remove the facotry headlight from the BMW. First remove the front panel cover below the headlight to access the bottom screw of the headlight housing. There is also two screws on the top of the housing.
Once you have remove the headlight, turn the headlight around and remove the bracket that holds the Ballast. Then remove the ballast using a philip screwdriver.
Unplug the wire from the ballast, and then remove the Xenon Plug from the housing. Put the Ballast aside.
Carefully remove the D2S Xenon Bulb from the factory housing. Once you have remove the bulb, transfer the bulb to the Spyder headlights.
Remove the bracket from the Spyder Headlight, and then install the ballast on the housing like the original. Once you have put the ballast on, put the bracket back on.
Remove the Panel Cover bracket from the original headlight to the new Spyder Headlights as shown here.
Install the Spyder turn signal socket if the orignal does not fit, unplug the factory plug from the harness and plug the new one on.
Install the Spyder Headlight back on to the vehicle. Plug the Harness back on, the halo/L.E.D. Wires is connect to the Parking lights. These wires are optional to your vehicle, you do not have to wire them together.
Factory Xenon Headlight
Spyder Projector Headlight using Factory Xenon Lights
pls vote an diam giving you link also for better help BMW e46 HID Headlight Replace


Oct 15, 2009 | 2003 BMW 325

1 Answer

Need to replace the ballast on a 52HM94

the ballast is a small rectangular is very easy to change.remove the lamp and you
will see a plug where the lamp plugs into.remove the two screws on that plug.then
remove the 4 screws holding the ballast in.remove the ballast and install the new one.

Jul 17, 2009 | Toshiba TheaterWide 52HM84 52" Rear...

1 Answer

I need simple instructions on how to replace the ballaster for a mitsubishi wd-62525

Minor point, the correct term is 'ballast' like on a fluorescent lamp.

Unplug the unit from the wall.

Remove the filter cover (from the rear, it's on the right side of the electronics cover). Remove the electronics cover (the one on the back with the fan in the center). Remove the rear metal plate (about 25 screws). Remove the right rear support bracket to gain access to the ballast area. Remove the ballast shield. Unplug the two connectors on the ballast module. Unscrew the lamp connector (2 screws). Remove the 2 screws holding the ballast in place, they're at the closer end, near the fan. Lift the closer end of the ballast board and remove (there's a hooked lip holding the other end, no screws).

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

1 Answer

How to replace lamp ballast 46hm84

Assuming you can get the part, here is the procedure to replace the lamp ballast:

1. Make sure TV is un-plugged and the lamp has cooled for at least one hour before continuing.

2. Place the TV on a flat surface with sufficient space to the rear to allow you to slide out the chassis.

3. Open and remove the lamp access door on the left-side of the TV (facing the front) by loosening the thumb screw. Behind the door you will find the lamp assembly which must be removed by loosening two screws (one on either side of the lamp base). Pull out lamp unit, careful not to touch the lamp or bump the unit. Set aside.

4. There are 13 screws that hold the lower-rear cover onto the cabinet. Use a 1/4 inch nut driver to remove these screws. Nine of them are along the top and bottom at the rear and another 4 on the left and right hand ends of the cabinet just to the rear of the front panel.

5. Next, note that the chassis is in two sections; left and right. The lamp ballast is part of the light engine assembly that is on the right chassis. You will save yourself much grief if you slide out both left and right chassis assemblies. There are 4 screws through the jack panel that hold the left-side chassis to the cabinet. Remove these screws. Also, there are two screws mounted vertically (one on either side) of the jack panel that hold the left-side chassis to the bottom of the cabinet. Remove these screws as well. Note that they are different from the other screws.

6. The right side of the chassis is held by 5 screws. First, remove the three screws that are holding the verticle metal brace and remove the brace. Note that there is a cable tie connected to this brace. Be careful not to cut or exert too much pressure on this cable tie or the cable running through it. Next, remove the remaining metal screws holding the right chassis.

7. At the top of the open cabinet just behind the metal brace that has need removed, you will see another metal screw that holds a light shield in place. This shield has several small wires that run through guides. Carefully remove these small wires from the guides remove the screw and gently remove the shield taking note how the shield is supported so you can re-install it again easily.

8. At the left side of the jack panel towards the front of the cabinet, you will notice some wire guides with wires routed through them. Carefully remove these wires from the guides so you can pull out the chassis without putting strain on the wires.

9. CAREFULLY, start to slide out both chassis sections, left and right. Be careful not to pull any wires. If you notice a wire that is becoming tight, stop and make sure you take the strain of off the wire before continuing. You will most likely not be able to fully remove both chassis. You will not have to in order to replace the ballast.

10. The ballast assembly is located in the right-rear portion of the light engine assembly. It is held on to the circuit board by four plastic posts and retaining clips, one on each corner. The projection lens is part of the light engine assembly and is exposed. DO NOT TOUCH the lens with your fingers or tools. Before you remove the ballast, you must remove a metal piece that covers the heat sink. There is one screw on each side of this cover. The one on the left is difficult to reach with your fingers so use a magnetic screwdriver if you have one. If not, use some kind of sticky substance on the point of the screw driver so the screw will lift up with it. Remove the metal cover. Next, remove the two screws that hold the brown lamp socket to it's base and carefully remove the lamp socket. Also, there is a small white cable connector on the right-rear section of the ballast that needs to be CAREFULLY removed. Do not pull by the wires; use a needle-nosed pliers to grasp the plug and gently wiggle if off the connector. Gently move the white plastic clips at each corner and lift off the ballast assembly.

11. When installing the replacement ballast, be careful to gently seat the ballast by exerting pressure only on the four corners where the posts are. In this way you won't crack the circuit board. Replace that small cable connector, the lamp socket (it's key-wayed so it cannot be installed wrong), and the metal cover over the heat sink.

12. Take you time and follow your steps in reverse order. The both sides of the chassis must be slid into the cabinet together to avoid too much tension on small wires. Notice that there is a verticle tab on the light engine chassis that must be aligned on the right side of a veticle guide that comes down from the top of the cabinet enclosure. If you do not have the tab on the right side, the chassis will not fully seat back into the cabinet. Replace the light shield, route the small wires through the guides and also those on the left side of the jack panel, replace all screws and braces.

13. Replace the lamp assembly and replace the lamp door and hand-tighten the thumb screw. The set should fire up. If it does not, the problem may be with the light engine in which case it will not be worth the expense to fix.

Good luck and take your time.

Jun 08, 2009 | Toshiba Televison & Video

1 Answer

How to change a ballast in a Samsung tv

IT is a little tricky but if you have basic had tools and a philips screwdriver you should be ok. You have to remove back panel and then pull out LIght Engine to access everything. Some models it is possible to not remove light engine, but i think yours you do. Also you have to remove the lamp competely and remove the little screw that holds the ballast connector to the housing for where the lamp plugs into the male connector. Located on the back of where the lamp plugs into on the light engine. Usually there are 4 screws that hold the ballast in place and you can remove those as well. Also there is some black plastic cooling housing that may require to be removed as well to accomidate this. But keep in mind all connectors are keyed so you don't have to worry to much, it only goes back together one way. Samsung was very good about this when designing set. I may even have a ballast i could sell you at a lesser price then anyone out there. If you get it out, Let me know and we can go from there. Do you hear it trying to fire the lamp? I would listen for that first and if you hear any kind of zzzziiiiiipppp sound, then ballast is probably fine. Maybe lamp could still be bad. I have seen new ones quirky sometimes. Keep me posted and i hope this post was helpful for you.. Cheers...Guru Jay

Nov 26, 2007 | Samsung HLR5067WX 50" Rear Projection HDTV

6 Answers

My TV screen is blank for my 62" Toshiba

I just replaced the ballast in my 52HM84, working fine now. My 2 cents:
Remove the lamp. Remove the lower back panel (13 screws), remove the housing behind the lamp door (2 screws).
I only slid the light engine out a few inches, enough though that I had to remove the plastic panel oriented horizontally between the projector lens and the backside of the tv.
You dont need to remove the screws that hold the lamp plug.
The ballast board is held down by 4 plastic retaining clips, push each gently to release the board from the aluminum housing. You do not need to unscrew the aluminum housing from the light engine tray. ( Be patient, read on )
Disconnect the 2 cables attached to the ballast board.
I know you are thinking, how do I remove the ballast board with the lamp plug where it is.
Orient the lamp plug on your new ballast to match the old and use a piece of tape to mark the top wire of the 2 lamp plug wires. Not sure that it matters, but why take the chance.
On you new ballast, find the tiny hole above each larger conductor hole, poke a paperclip in the small hole to release the wire. I've done it with a paperclip, you may try to use a pin or needle. Repeat on the old plug.
Your ballast is free at last.
Put the new ballast in place over the 4 plastic guide pins (part of the plastic retainer), the board should click into place.
Attach the cables to the board.
Insert the lamp wires into the back of the lamp plug, you did mark the top one right?
I won't bore you with the rest, because you've already been there.

The biggest mistake I made was allowing the housing that has the door interlock switch to fall off the table. Of course, this pulled the plug off the circuit board and it's not the light engine board either. Didn't know it had detached until I powered up and got the LED's blinking indicating the door was not properly secured. So I had some extra stupid work to re-attach it.

But I have LIGHT.

Nov 17, 2007 | Toshiba 62HMX84 62" Rear Projection HDTV

4 Answers

SAmsung DLP Model # HZN617WX/XAA

It sounds like the ballast that powers your lamp is bad. What are the indicator lights on the front of the tv doing?

Oct 31, 2007 | Samsung DLP HL-P5663W 56" TV

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