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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How do I change my projector lamp?


Instructions
  1. Front Projector
    • 1 Disconnect the power cable from your projector. Allow it to cool for 30 to 60 minutes. Lay the projector upside down on a table.
    • 2 Remove the lamp cover, typically located on one of the rear corners of the projector's underside. Depending on your projector, you will either have to loosen a few Phillips screws or press on one or two plastic release tabs to remove the lamp cover.
    • 3 Loosen the screws holding the lamp assembly in place. Grab the assembly by the handle and slide it out of the projector.
    • 4 Slide a new lamp assembly into the projector. Don't touch the glass on the bulb because it will damage the bulb. Tighten the retaining screws on the lamp assembly and replace the lamp cover.
    • 5 Turn the projector right side up and reconnect the power cable. Power on your projector.
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    • 6 Unplug the TV from the outlet. Let it cool for 30 to 60 minutes.
    • 7 Remove the lamp cover. On most rear projection TVs, the lamp cover is located on the right or left side of the TV's rear panel. Remove the cover by loosening the screws and pulling the cover away from the TV. Certain manufacturers, like Mitsubishi, have the lamp cover in the front of the TV, near the left speaker. To get to the cover, you must first use your fingers to pry off the front panel below the screen, revealing the speakers and lamp cover. Loosen the screws on the cover and pull it away from the TV.
    • 8 Remove the lamp assembly. Loosen its screws, grab the handle and slide it out of the TV. If you have a newer Sony model, there are no screws. Instead, press the release tab to unlock the lamp assembly and slide it out of the TV.
    • 9 Slide a new lamp assembly into the TV. Don't touch the glass on the assembly, as the oils in your fingers will damage the bulb. Tighten the screws or pop the retaining tab into place.
    • 10

      Replace the lamp cover and front panel, if necessary. Plug your TV back into the electrical outlet and power it on.

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  • Touching the lamp assembly before it has cooled can cause a nasty burn.

Read more: How to Change a Projector Lamp ' eHow.com http://www.ehow.com/how_7307928_change-projector-lamp.html#ixzz1rpURlpva

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