Question about Toshiba 57H83 57" Rear Projection HDTV

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No audio or video

Power led turn on ,heard relay clicking on the back but no sound or video.

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The relay is kickking in but a failure in one of the boards is preventing the tv from powering up (protection circut ) and only qualified service centers have access to these parts

Posted on Oct 17, 2008

  • jason Oct 25, 2008

    well your not getting any more help now

  • jason Oct 25, 2008

    you have to say something or I can't help

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My Tv was working fine for 10yrs then one day i try to turn it on and nothing happen...I heard 2-3 clicks and nothing else. ( NO PICTURE OR AUDIO!!!...This Tv has been great to me over the years, The...


try to look for the power supply area, it is found on where the main plug is connected check if there are busted fuse of shorted parts,, the "clicks that you heard are the relays. relays are loosing out of supply because of a shorted parts like transistor or diodes or sometimes loose connection. Parts description are found in alldatasheet.com for you to know how to test the parts that u suspect

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I have a hitachi 65SWX20B projection TV. When I power it on, I get no picture, no sound, and on one of the circuit boards, an LED (D967) blinks dimly (1/2 second on, 1/2 second off). A soft click is...


If the board with the blinking LED has larger than average parts on it, it is likely the main power supply and the clicking may be from a relay that is connecting and then, disconnecting the AC. With no video or audio, the main power supply has likely failed. Contact Hitachi service to ask how much the repair or replacement cost of the supply is. Make sure you have all involved model numbers handy; the one from your set with the mfr. date if present and if you can find an assembly number on the power supply itself. it may save you time and errors. These boards are often simply plugged into other assemblies with dissimilar plugs but if you decide to DIY, take some snapshots of the cabling to be on the safe side.

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When u turn the tv on,u hear alot of clicking?That mean the Ballast that help the projection bulb to work is dead.Change the Ballast,might as well change the bulb too.U don't know what is the condition of the projection bulb in.

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1 Answer

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not a solution but i have a 50gx30b doing something similar, no picture no sound, 3 green leds are lit up on the main board and then one red led lit up also on main board, front panel red led stays on for about 30 -50 seconds and then it all shuts off, I then have to unplug and replug to get the same results.

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1 Answer

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It might be the relay itself, you sound tech savy have you tried testing the transformer and various other main board componets?

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1 Answer

Toshiba 57h83 wont do nothing


that relay is supposed to engage power to the tv boards that control the screen.
you will have to take it to a oualified service center , because they have access to parts that are needed for repair

Oct 17, 2008 | Toshiba 57H83 57" Rear Projection HDTV

1 Answer

No picture or sound


Remove the rear panel. With the TV on you should see a red LED near the center of the PCB. There should also be 5 green leds, 3 to the left a 2 behind. If there is no red leds, check the fuses. If there are no green leds or maybe 1 or 2, disconect PSD5. It's a connector on the left side of the power board that connects to the audio board. It's the 3rd on fro the back. It's labled. With that disconected, turn on the set and look for the green leds. If all 5 light, the power supply is OK and you have a problem beyond that. If they don't all light you have a bad power supply.

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1 Answer

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Clicking sound is power relay engaging. If all systems are not functioning properly, unit will shut down to prevent further damage and/or fire hazard

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