Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

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I have Hitachi 65f710 projection tv, that has no power, I found a thermal fuse open in the power supply, I replaced that; the Tv came on but has no hi voltage, the tv has b+ but not at HOT hight voltage transistor. what else you think can be done. Right now I have no picture Thanks

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Try replacing the H-out transistor, if yours is convergence IC type, replace it. hope this help, please rate and vote.

Posted on Mar 28, 2011

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1 Answer

I have a Hitachi Rear-projection TV that won't power on. What could be the problem?


This is probably a protective reaction from the set if it is repeatable and may be related to the power supply that converts your AC source into the necessary voltages the set requires.
Not a DIY repair unless you can find a used powers supply and want to try replacing it yourself which isn't a big job since these are connected by male/female connectors to the various circuits.

No guarantee that replacing the supply will make the set usable again.

It may be time to shop for an LCD TV to replace your projection set since repairs and parts will be getting tougher to find.

If you find one you like, enter the make and model here at Fixya to see if the brand or model is causing problems for owners,

May 08, 2015 | Hitachi Televison & Video

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Hitachi projection tv has no picture but has sound


hi.. if your projection TV has no raster at all, it has problem with high voltage supply. there are two separate power supply inside your TV for audio and for the high voltage for 3 CRT tubes.its very dangerous to service it by yourself.
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Aug 14, 2011 | Hitachi 57F500 57" Rear Projection...

2 Answers

6 blinking red lights


You still have your guessed problem. 6 blinks means Low B+ error (power supply). This can be caused by an open thermal fuse, loading by another circuit board, or the power supply itself.

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1 Answer

Green leds turn on momentarily when first plugged in then shutoff


ok , on hitachi pro tv is very common with bad power supply u may want to replace the voltage regulator which is next to the fuse u already replace , also loose connection on all the power supply seccion , also u may want to check the resistor close by the convergence ic 2.2 ohn if this are smoke replace stk392-110

May 07, 2009 | Hitachi 50SBX78B 50" Rear Projection...

2 Answers

Hitachi 65F710 convergence problem


you have to unsolder the old one and put in the new one it should be located just forward of the tuner

Nov 20, 2008 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Pt-50lc14 50in.


I went ahead opened the back cover and surprisingly noticed it's pretty dirty inside after 2.5 years of usage, and there is a thermal fuse to protect the ballast power supply. Spend 99 cents replaced the thermal fuse and the TV came back alive. I am surprised that it's such simple to fix the problem vs many others frustration.

LCD TV is more fragile than the traditional TV as it uses expensive HID lamp. So the cooling system inside is very critical to prolong the lifetime of the lamp and the special power supply. Dirt collect inside is probably the major cause to degrade the cooling system. Make sure you clean them (two fans and a lens) whenever you have a chance.

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1 Answer

Hitachi rear projection 60" tv, power failure


Yes,it's worth it ! Check for bad C702 capacitor next to HV
transformer covered partially by glue and E994 open pico fuse
in power supply .part # for cap 1-161-754-00 102K / 3KV.......T.

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1 Answer

Hitachi TV no picture no sound


Most common fix is shorted cap C702 ? near flyback transformer
and open E994 pico fuse in power supply. Capacitor is sometimes partially covered by glob of glue from factory....
Let me know right away,please......................T.

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1 Answer

Tv went off by itself


When you turn the tv on all the voltages come up for a second but the power supply is sensin a problem and it kills the high volatge and other voltages.One of the voltages the supply sends has a short.The tv needs to be service because components need to be checked and then replaced. Be safe and Seek the help of a technician to diagnose the problem.

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