Question about Hitachi 51SWX20B 51" Rear Projection Television

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No pitcure hitachi 51swx20b

Hitachi m# 51swx20b
dont know if happend by qoincidence but i used my cell phone for a light to hook up some cables for dvd and at the same time heard a clicking sound and now no pic have power .
The diode led / diode GREEN is flahing d967 - d940 TOWARDS FRONT OF SCREEN ON CURCUIT BOARD its the middle boars of the 3 . and the same for the RED led / diode d912 - d915. this one next to I902 located in the back of the board.
is this a simple replace these 2 parts or just a where to trace down warning o\f some kind?

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 308 Answers

SOURCE: Hitachi 50ux58b

It's possible that the Convergence IC's are causing a shutdown of the power supply. Also on this model, there have been problems with: C707 - 1000pf @ 2kv Cermaic Disc Cap (normally a small blue one) Hitachi Part # 0244211. I901 - A STRM6811a Reg Ic and E994 - 2.0 Amp Circuit Protector (Pico Fuse) having a high failure rate. If the 2 amp pico fuse was good, and the capacitor looked OK, then I would check the convergence circuit board. There are many other parts that can also cause shutdown problems, however.

Posted on Jan 03, 2007

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Slinteriors
  • 8617 Answers

SOURCE: Hitachi 61UDX10B

I would check for burnt resistors as the 150s are interchangeable with the 110s however in alot of hitachis I have seen resistors blow after upgradeing to the higher wattage ICs. I Usually switch out the convergence resistors whenever I go to a higher wattage IC just to be sure. If you need more help let me know.

Posted on May 18, 2008

Slinteriors
  • 8617 Answers

SOURCE: Hitachi 53UDX10B Power Light Flashing after convergence IC replacement

C603 is a polyestor capacitor 0.068UF-FEB 50V part number 0880047R S901 is the power relay ALKS329 the part number for the relay is FJ00142 . I recomend checking the pins on the ICs to make sure they are not bridged. If you need more assistance let me know. Vance Baldwin should have the parts if not you may have to order through hitachi

Posted on Jun 06, 2008

daniel719
  • 240 Answers

SOURCE: Hitachi 53FDX20B Screen and Sound Shut down (Pwr light remains on

you need to replace the Eeprom location 1004

regards,
daniel.

Posted on Jan 13, 2009

  • 668 Answers

SOURCE: 57F500A, powered light on with no sound/picture, ticking noise

Over the years of servicing these sets and others for Convergence issues, I have on several times gotten defective Convergence ICs. In your case where a Resistor is now open, (Probably a 1.5 ohm 1/2 watt), I would suspect you had gotten a hold of a defective IC. I would replace them both again. Make sure to use Heat Sink Compound between the ICs and Heat Sink.(Just a thin coating on the metal area) You can get the heat sink compound from Radio Shack. They should also have the Resistor you need.
Good luck,
Skyassoc

Posted on Jul 25, 2009

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