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Lighting problem need location of ballast for light, and what to remove to get to it.Thanks

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Front center section behind the lower panel you will need to remove the front bottom grill to get to it

Posted on May 28, 2008

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Posted on Jan 02, 2017

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How to replace a ballast in a fluorescent light


Open the light remove ballast go to hardware store get a new replacement. Take pictures so you know how to rewrite it.

Sep 08, 2014 | Philips Ceramalux 1000 W C1000s52...

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Ballast Diagnosis and Replacement in LCD Projection TVs.


When you have replaced the <a href="http://www.fixya.com/support/r4977572-when_change_ballast_in_dlp_tv#">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="http://www.fixya.com/support/r4977572-when_change_ballast_in_dlp_tv#">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="http://www.fixya.com/support/r4977572-when_change_ballast_in_dlp_tv#">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="http://www.fixya.com/support/r4977572-when_change_ballast_in_dlp_tv#">download</a> a service manual at <a href="http://www.retrevo.com/">http://www.retrevo.com</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="http://www.servicemanuals.net/">http://www.servicemanuals.net</a> . The manuals can be downloaded instantly.<br /><br />Any parts needed may be obtained at <a href="http://www.encompass.com/">http://www.encompass.com</a> or <a href="http://www.shopjimmy.com/">http://www.shopjimmy.com</a> . <a href="http://www.encompass.com/">http://www.encompass.com</a> sometimes will have the service manual for <a href="http://www.fixya.com/support/r4977572-when_change_ballast_in_dlp_tv#">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="http://www.fixya.com/support/r4916941-diagnose_repair_projection_tv_high">http://www.fixya.com/support/r4916941-diagnose_repair_projection_tv_high</a> to troubleshoot the additional problems.<br /><br />Good luck with your <a href="http://www.fixya.com/support/r4977572-when_change_ballast_in_dlp_tv#">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

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How To Know if it is the Lamp, or Ballast, that has failed.


Hi There. This is a very common issue with most rear projection Televisions. For example, you and your loved one are watching a great, and captivating movie, but suddenly, the screen go's blank. There is a "Lamp" signal in the right or left upper corner of the screen, and its flashing. Im sure at this time, you are very upset, and your loved one is, as well. don't worry about a thing. I will explain what is actually going on in this situation. In most situations, this will be a blown lamp, but in others, this will be a failed ballast.

Ok, first we will go over a few symptoms. The first will be the "lamp"

LAMP FAILURE

The lamp has only one symptom of failure. this will be a single pop, or a faint overheated filament smell. Normally you will here a single pop before the screen will go blank. The sound may continue, in some models.

BALLAST FAILURE

The ballast is a little tricky to diagnosis, audibly. There are three main symptoms of failure here.

1. The TV will usually give a "LAMP" failure code, even when the lamp has been replaced.

2. The TV will not make the normal click noise, or surge noise during start up. The absence of the start up surge noise is one of the quickest ways to determine whether the ballast or power board are bad, other than the lamp, itself.

3. The TV will make erratic, or rapid clicking noises during start up(5 clicks for every 3 secs). This is an indication of a weak ballast. It is unable to power up the lamp.

Now. Once you are faced with this issue, I would advise to simply test the ballast. Once exposed, you can visually inspect the component's as well. I will guide you through this with my procedure below.

The Lamp, and ballast are housed in close proximity of each other in most rear projection DLP sets. There is an access panel located on the bottom rear side of the unit. Most standard Phillip head screw drivers will due. Once the screws are removed from the rear access panel, the panel can be removed, and put aside. Once the panel if removed, the internals will be exposed. The Light engine platform is where the engine, and lamp housing will be mounted. The lamp/ballast housing is slightly to the right of the light engine. It will be black, in color. Ok, gently unscrew the light engine platform screws,and separate all harness connection to the engine,before pulling the platform away form the cabinet. Make sure the wires going to the digital board are removed from the light engine Assembly, and lamp/ballast housing as well. It is very important to make sure that all wires are disconnected from the light engine, and lamp housing before the engine platform is pulled away from the unit cabinet. Ok, once the platform is removed from the unit, simply pinch the plastic clips and pull to remove the vent housing. Now, once the vent housing is removed, the ballast will be exposed. Pull the smaller connector (ballast control cables), out carefully. Be sure that you don't damage the connector or the cables. Ok, now you release the lamp housing, and remove it. It is just to the side of the ballast housing. Once the lamp housing is removed, the ballast will have a few screws holding it on the engine platform. Simply remove the ballast mounting screws, and lift up the ballast housing of the platform.

NOTE_Normally, the ballast has Two connections to the digital board and power supply. The third connector goes to the lamp. Connector one powers the ballast, while connector two, gives operation instructions to the ballast.

Ok. Once the ballast housing is removed from the platform, place it on a separate table, and remove the ballast housing screws to expose the ballast circuit board and components. This is where you will need to access a multimeter. testing is needed to confirm ballast failure. Although there are visual indications that will confirm failure, i would suggest to test as well. Observe the ballast before proceeding. If oil is leaking from the ballast, stop here and remove the ballast. Leaking oil indicates that the ballast is damaged beyond any doubt as the internal seal has been ruptured by excessive heat. This is one of the visual indicators that will require you to go ahead and replace the ballast. If there are no oil leaks visible, move on to the testing procedure. Turn the Volt Ohmmeter to "ohms" and touch the ends of the two probes together. The meter should show continuity or a direct short. Touch the probes of the meter to one of the white wires and one of the colored, blue or yellow, or any wires that comes from the ballast. This should show a short or continuous circuit. If it does not, the ballast is bad and should be replaced.

This will conclude the procedure. This will prevent you from purchasing the wrong part, when the "LAMP", code appears.

Here are a few other models that my tips will cover. HLT4675S, HLT5075S, HLT5675S, HLT6756W, HLR5067W, HLR5656W, HLR6767W, HLT5076S, HLT5676S, HLT6176S

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on Dec 02, 2009 | Samsung DLP HL-P4663W 46" Rear Projection...

2 Answers

My JVC DLA-X3-BU will not power on, 2 lights are red, lamp light is flashing orange, how do i get it to work?


I have a JVC DLA-X9-B projector which I think is the almost the same as the X7 and X3 the manual is the same.Its about 2 years old.It stopped working suddenly while I was watching a movie. Indicator lights were both on red and lamp light flashing orange. Replaced the lamp and it did not change the status,did cleaning filter bit , did lamp reset from the remote , did reboot and plugged it at a different ac outlet all that did not work . The lens cover is stuck at opened and the only thing you get when plugged in is the red light on and after 30 seconds the lamp light comes on orange .No fan came on no moving lens cover only flashing orange light.
From this conclusion was the power supply was working and software was a question mark either it was corrupt ,but the power cycle and lamp test start was normal and it checked the lamp and reported orange .So all the more it pointed to either the ballast or the power feeding the ballast.
I opened the projector up started with the screws at the bottom removed the the adjustable screw in legs. Removed the left and the right plastic cover ,then bottom cover, lamp cover, top cover plastic and then top metal plate cover, back cover until parts were all visible ,then put back the screw in legs a placed projector in an upright position. All this was in suspect that the ballast is the problem.
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-6.jpgThis is the top view photo.
On the right black plastic cover is the lamp fan and air duct.
At the center is the lens assembly and motors for focus lens shift etc.
on the left are stacks of electronics that are stacked board on board of about 4 or 5 layers.

jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-11.jpgthis is the side view of the stacks of boards, to get to the ballast these have to be removed.NOTE LABLE ALL CABLES AFTER REMOVING THEM AS THERE ARE MANY OF THEM.Remove the side plate

jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-18.jpg
Remove hdmi and land board,carefully there are connectors on bottom and all sides of this board.

jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-27.jpg jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-38.jpgthen remove the next board ,remember to lable all the cables.
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-51.jpgthen the next board bellow ,carefull this one has 2 side connectors on pictures top side
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-66.jpgthis will be what it looks like.Note the bottom most is the power supply.,This feeds the ballast as well as other low voltage Dc components.THE CONNECTOR WITH THE WHITE END AND BLACK AND RED CABELS IS THE BALLAST FEED(picture above) .The ballast is located in a black plastic box above the power supply.The only way to remove it is to continue dismantling further. jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-83.jpgthis is the top view and the yellow tags you are seeing is cable labelson the wires.

jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-102.jpgthis picture is with all boards removed to check for physical burn outs on components
mainly on power supply ballast feed and ballast itself.
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-123.jpgall boards out
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-146.jpgthis is the power supply board it has both low and high voltage output .Low for logic boards high output for ballast.Ballast feed from power supply should put out about 380 volts dc during projector boot up and zero during orange blinking light,(you can skip this removal of power supply if you read the 380 volts output on multimeter at boot up.Do this before taking all the boards apart but remove the side plate to access the output and check the output at boot up ,warning do not short this while reading output.
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-171.jpgpower board made by sumida and so is the ballast
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-198.jpgfinally the ballast is out this is what it looks like,do you see the dark grey wires they lead to the optocouplers (little led light sensing switch looks like a square little box all 3 are side by side)
jvc-dla-x3-bu-will-not-power-2-lights-zogl1yh0b34d0jvl0ocjipaz-3-227.jpg this resistor came out of the ballast ,notice physical damage like a hole in the center of it,tested it out of the board and yes its dead replaced this.
.Did all the checking one by one of the components then found one of the optocouplers had gone dead.The one located in the center of the 3 replaced that ,put it all back and got it working again.
The ballast cost 300 usd I bought one too and kept it handy just incase.
But for the meanwhile the old one is back and working just fine.

Aug 07, 2014 | JVC DLA-X3 Procision Projector

1 Answer

Lights not working, and can't find the ballast location


The ballast is located down by the compressor if you take off the cover the ventilation slats. Then in the very center where there is a plug from the compressor plugged into the side of the center support as a cover on the front of that open the cover and inside you'll find The ballast.

Mar 09, 2013 | True GDM-69 Refrigerator

1 Answer

How do you replace the fog light bulb on 2008 avalanche


    • 1 Open the hood and reach down into the engine bay for the fog light assembly. If you cannot reach the fog light assembly from the top you may need to get underneath the truck to reach it. Remove the electrical plug running to the fog light ballast.
    • 2 Remove the bulb. Unlock the fog light bulb by turning it counterclockwise and pulling it straight out of the assembly.
    • 3 Slide a new bulb into the fog light assembly. The part number you will need for the new bulb will be located on the ballast or base of the old bulb.
    • 4 Turn the bulb clockwise to lock it into the fog light housing.
    • 5 Reconnect the electrical connector to the bulb ballast.

Jan 23, 2011 | 2007 Chevrolet Avalanche LTZ

1 Answer

We have fluorescent cove lights in the living room. We think the "starter" is bad, but we can't locate the "starter". Can you help? We have tried switching the working light bulbs...


Very few flourescent lights have "starters" these days. If it does have a starter, it will be a visible cylindrical object usually located at either end of the fixture. More likely it's the ballast that is bad. Turn off the power and remove the cover to the fixture. The ballast will have a lot of wires coming out ot it. Take note as to where all the wires are attached, remove it, and take it to a hardware store or Lowes or Home Depot to get a replacement. Make sure it is an _exact_ replacement. Sometimes it's easier and cheaper just to replace the entire fixture as some of the older ballasts are expensive due to there being replaced by newer technology.

Dec 10, 2010 | Sli Lighting 48" Fluorescent Bulbs 34...

1 Answer

No power to lighting ballast ,only lights up on loss of power 277v at emergency ballast


Follow the appropriate wiring exactly. There are about 6-8 different diagrams. Find your lamp type and number of lamps. Locate your ballast type (usually instant these days) Quite often these diagrams show a switch on the power lead going to the operating ballast. If it isn't on a switch be sure to wire it in with the lead to the emergency battery ballast.

Jun 30, 2010 | Lithonia Lighting Psq500 Power Sentry...

1 Answer

2005 Lexus RX330 HID ballast replacement, passenger side headlight. What is the removal procedure please?


I have a 2005 Lexus Rx330 with HID AFS headlight. My passenger side light went out. I thought the bulb burnt out, so I bought a new bulb. After replacing the new bulb, it happened exactly like my old bulb. It light up lightly and then total black out. What's wrong with it? I thought the ballast burnt. I called Lexus dealer and asked for the new ballast/transformer. Surprised me, they don't know what is it. They told me they only know the wiring harness and the socket, but not the ballast ??????? Could you tell me what do I need to replace?

Thanks,

Feb 02, 2010 | 2005 Lexus RX330

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

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