Question about Hitachi UX21511 Projector Lamp for 50V500

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50v500 1.Can you test continuity of a projection lamp? 2. what could be damaged on this tv by shutting it off and then unplugging it right away? I tried replacing the lamp and th only thing that happens is "power lamp and temp leds flash but not at the same time. 3. Are there any reset buttons that need to be pressed when a lamp is changed? Any suggestions would be appreciated. Eric Ooten eric_ooten@starkey.com

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5 Suggested Answers

techman
  • 3130 Answers

SOURCE: Hitachi 50EX20B Bigscreen TV

You can download a PDF from here: http://www.servicemanuals.net/results.aspx?type=SM&brand=0&model=50EX20B Make sure that the coolant is not leaking out onto the printed circuit boards. i have had the remote sensor cause this problem before and also I have had bad capacitors in the sweep and the main power supplies. Good Luck

Posted on Jun 14, 2007

  • 1 Answer

SOURCE: Power button Flashes

Bad Convergence circuit , replace 2 STK392-110 & fuse will take care the problem

Posted on Jul 18, 2007

  • 1 Answer

SOURCE: No picture from projector after changing lamp

how to change the lamp

Posted on Oct 11, 2008

  • 39 Answers

SOURCE: Lamp

I have the CP-X275W that did the same thing. The ballast was bad and I fixed it with a $5 switching regulator. The CP-X327 has the identical ballast.

Details:

The High Intensity Discharge Metal Halide lamp suddenly failed to light up. A new lamp was installed and would not light up either. The fan ran and the lamp LED flashed after a few minutes. Voltage to the ballast module was 368VDC. The ballast did not pulse.

Ballast# PS-226-LS-210 was bad. Hitachi Part# HA01101 has been discontinued and the new part number is HA01102. It was $210USD at Vance Baldwin or $221USD at Part Solver.

The FET series (TR1,5,6,7,8,) seemed good: (drain-source resistance=5Kohm). Bought an identical projector on Ebay to do comparative multimeter measurements. Found resistance differences in IC01 (STRG6153). Swapped good part to bad projector, and it worked. This is a 5-pin Sanken brand switching regulator, US$5 at www.electronix.com. They have the STRTG6153, which is compatible, and may be better. The bad one removed from the circuit measures 15Kohm on pin 3 to pin 5 and the same 15Kohm when the probes are reversed. The good one measures 18Mohm and infinite when the probes are reversed.

If you would like me to fix it for you and clean all your optics, I can do it for $150USD plus $25 return shipping. Contact Chris at chris_goulet@yahoo.ca.

If you have a new lamp for sale I would buy one for $100USD.

Good luck.

Posted on Feb 05, 2009

  • 65 Answers

SOURCE: Hitachi projection TV does not power up

You probably have a blown 2kV capacitor and 2 amp fuse. Look for signs of black burning inside.

Posted on Aug 09, 2009

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I have a Panasonic pt-56dlx75 television that has


follow this recomendation.God bless you
Temperature is a common reason why many Rear-projection TVs do not perform well when they get to hot. You may start to see your TV shutting down automatically when it overheats. Here are a couple of things you can do to prevent overheating. First make certain any TV ventilation ports are free and clear of debris and dust. Second make sure the TV has enough room for airflow. Third, the temperature in the room should be around 72 degrees. Due to the high degree of heat generated by a rear-projection TVs, it is not advisable to watch TV on a hot days when you don't run the air condition. This could cause damage to your TV.
  • Check the fan. Once the television is turned off, it is just normal for its fan to become louder. A projection TV actually depends on its lamp, which requires cooling so that it will not prematurely burn out. If the room where your TV is placed is very hot, the fan would also continue to run.
Replace projection lamp. To properly do this, make sure that the lamp's bulb has cooled down and the TV is unplugged. Carefully remove the cover of the lamp's compartment using your screwdriver (Phillips-head). Unscrew the sealed part of the lamp that can be found at the television's rear part. Take away the old lamp cartridge and then insert a new one. Seal the lamp with screws, replace its cover and then screw tightly.
iF THE Problem persist you have to fix it the power supply inside.
God bless you

Aug 01, 2013 | Panasonic Televison & Video

1 Answer

Tv went off and wont come back on just had bulb replaced fan is on but no power indacater on front


OPPS!

You may have damaged the lamp or the ballast that drives the lamp.

Confirm the model and brand to me:

All sets that use a lamp warn you to if you turn set off NOT to unplug it for several minutes until the fans in set all shut off.

What can and does happen is when set turned off the fans continue (especially the one on the lamp) to run until the lamp cools down to a specific temperature---unplug it before that and the lamp can instantly be damaged or even destroyed.

Mar 27, 2012 | Zenith Z52SZ80 TV

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The picture has suddenly gone dark. We can still see the picture, however it is really dark. We tried shutting it completely down and unplugging and restarting it. We tried to adjust the color via the...


The tv LED light on the tv front bazel frame face have the word "LAMP" light up or blinking?Yes.The tv projection lamp been inside this tv like 1 1/2 or 2 years already,tv used it everydays like 4 or 5 hrs daily?Yes.Than the tv projection lamp life are over,that why it dim picture tv now must have it tv projection lamp to be replaced.

Jun 12, 2011 | Samsung SP50L6HX 50" DLP HDTV

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When you turn of the TV the POWER indicator flashes green for several minutes. The TV never comes on. After the several minutes of the POWER indicator flashing green, it stops, I hear a click and the...


A continuous flashing red light with the word LAMP on it would definitely mean you're going to need to spend a few bucks on a new lamp....or for a few more, upgrade to a TV from this century that doesn't require lamp changes :)

May 11, 2011 | Panasonic PT-52LCX66 Projection Television

1 Answer

Tv wont stay on . i changed the color wheel and bulb and now it turns on then shuts it self off right away and the lamp light is flashing still


When you changed the lamp did you clean the "lamp temp sensor"? When you removed the lamp housing from its cradle, you can access it from where lamp goes. It can be cleaned with a Q-tip.

Also, there is a little blue safety switch that is located on bottom right of the light engine tray. It MUST be in the DOWN position when the TV back is reattached to TV. You can use tape to hold it in the DOWN position while attaching the back of set.

Also after replacing your lamp did you reset the lamp life?, You can do this by:
1-TV off
2-press mute+1+8+2+Power. This will access factory settings.
3-scroll to "Options". Press right arrow to next menu. scroll to "lamp life" hit right arrow and click reset.
4-power off.

That resets the lamp life hour meter.

Apr 09, 2011 | Samsung HL-P5063W 50" Rear Projection HDTV

1 Answer

When we turn on tv it shut down right away we think it could be the lamp light what else can it be?


Try muting the sound on the tv, if it is a loose circuit the sound vibration can jiggle a connection and cause the tv to turn off as apart of its safety feature.

if the tv functions correctly while in mute then you now know it is a loose circuit.

if the tv continues to turn off even while in mute it is shutting down by the main power stand by safety feature, it may need a new main transformer.

if the muted sound solved the problem then unplug the tv and look in the back for the main transformer, the manufacturer usually places the main board on the box of the main speaker, the speaker could be vibrating a circuit loose from direct contact, the main transformer is heavy and would cause issues over the long run with high fadelity sound systems on big screen tv's. check solder points on main board.

Oct 04, 2009 | Hitachi 51F59 51" HDTV Projection...

2 Answers

KDS-R60XBR1 Sony Projection SXRD


The lamp may be starting to go, the symptoms you describe are classic warning signs. You could unplug tv let it cool down and check lamp most likely the glass will not look clear maybe a little milky or smoky in areas..dead give away.

Mar 07, 2009 | Sony KDS-R60XBR1 60" Projection HDTV

1 Answer

Lamp light blinks 3 times shuts down


The CLS problem. Im thinking that at least you made a visual inspection of the power suply and the capacitors around it. Then if everything normal in the area then the microdisplay (inside the ligth engine) can be damaged. (when the tv is working normally the microdisplay sends a pulse to turn on ballast and lamp finally.

The sweetkyman: when the fan is bad th tv shuts down imm. (if you unplug the fan when the tv is working normal the computer detects the overcurrent system works and shuts down the set) when a fan is all dirty and tons of dust on it the tv tends to work but after some hours the tv shuts down.

Dec 20, 2008 | Samsung HL-P5063W 50" Rear Projection HDTV

2 Answers

No picture and no sound after replace lamp for Mitsubishi WD-51525


did you use an original mitsbishi lamp. did it slide in easily? one of the most common problems with a lamp replaement is pushing the connector away from the lamp if it doesn't slide in easily. unplug the set, take out the lamp and look with a flashlight to see if the connector is in place. if so put the old lamp in and see if it works. if it does then your new one is bad. if it doesn't then email me
ima_rm2000@yahoo.com with your number and we can talk more.
ken

Nov 10, 2008 | Mitsubishi WD-52525 52" Rear Projection...

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