Question about Hitachi 43F300 43" Rear Projection Television

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Hitachi 43F300 43 in. Rear... Problem:

It is only 3 years old. There is a red light that is on in front but no picture or sound. I hear a click then nothing.

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Units in shut down to protect further damage,poss. power supply or deflection fault

Posted on Aug 23, 2008

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Picture is black. sound went out a few weeks ago and now all that seems to work is the red power lamp turns on and I hear a click but that's all. I am not concerned about the picture since it is c


The click is a power relay on the main board and if the red light is on I would suggest looking inside to see if it has more than one relay--follow the power cord into the set----some of these sets have one relay but others have up to 3.

They are know for sticking open or shut. A tap on them can free them..A look inside even by a novice may also reveal something burnt or unplugged etc.
12_5_2012_3_12_13_pm.jpgview of relay bottom side is up.

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1 Answer

No sound/picture and red power light always on (Hitachi 43FDX15B)


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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Same problem. Replaced both convergence ICs about 5 months ago. Worked fince since then and just recently no sound, no video, blinking red on front panel and clicking sound. I suspect that the ICs went bad again and blew a resistor or two. I used cheap Chinese ICs instead of the Sanyo ones and thing this is why. I'll be looking at it again and post solution.

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1 Answer

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Good Day;
If you don't hear the relay click suspect Q003. No power suspect Q912, Q914 & I901. Good Luck, big IRISH.

Aug 01, 2008 | Hitachi 43UWX10B 43" Rear Projection...

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

Hitachi 60EX388 Rear Porjection TV


i think its the fan that needs to be replaced. or it could be the bulb.

Try to open the bulb assembly unit and take out the bulb and put it back in. If you have an extra bulb, replace it and see if works. This worked for me. The bulb i bought wasnt compatible

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