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Hitachi rear projection TV

It has sound but no picture. What could be causing this and what can I do to fix it?

Posted by tadair on

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Anonymous

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Picture has gone dark, but not completely away, would this likely be a bulb and how do I change it?

Posted on Jan 13, 2008

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Vista Electronics

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SOURCE: hitachi rear projection tv. screen looks green

Green CRT bad = take off lower front cover, remove access panel
locate screen / focus block.....turn green screen control slightly
CCW............................re-assemble...........T.

Posted on Dec 21, 2007

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Anonymous

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SOURCE: hitachi rear projection tv with no picture or sound

Depends on how old it is and what the model number is. Do you think all TV's are the same man? No they are not.

Posted on Mar 09, 2008

Anonymous

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SOURCE: cleaning tv screen of hitachi rear projection tv

http://serviceman.site88.net/index.htm

Posted on Jul 07, 2008

Anonymous

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SOURCE: Hitachi tv no picture or sound.

my hitachi projection tv 53uwx10b screen is black with no sound or picture when the power button is on

Posted on Dec 30, 2009

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My samsung TV UN70NU6070FXZC can't turn on, the red light blink 2 times with dark screen and no sound, and this cycle repeated after about 20 seconds again and again. What issue is it and how to do?. My samsung TV UN70NU6070FXZC can't turn on, the red light blink 2 times with dark screen and no sound, and this cycle repeated after about 20 seconds again and again. The Tv reboot again and again. Have to unplug power cord to stop it. Samsung Main board BN94-14106C, Power supply board BN44-01016A 1. Disconnect main board from power supply board: plug power cord, backlight on, output=13v ch1=120v ch2=80v ok. 2. Connect power board to main board disconnecting two connectors to screen, it can be turned on/off normally. No T-con board is found, is it included in the main board or side board? a. TV Standby: red light on, sound off, backlight off. on power board output=12v ch1=ch2=0v, on main board SW=0.1v PW=12vx2, HAVDD=AVDD=VGH=VGHD=0v FB_TRDY_3=0v. b. TV On: red light off, sound on, backlight on, on power board: output=13v ch1=124v ch2=82v, on main board: SW=3.3v PW=13vx2, HAVDD=AVDD=VGH=0v FB_TRDY_3=0v VGHD=0.1v. It seems that video part of the main board is not working? 3. Only connect anyone of the two screen connectors to main board connecting to power board, it can be turned on/off normally. a. TV Standby: red light on, sound off, backlight off, dark screen. on power board output=12v ch1=ch2=0v, on main board SW=0.1v PW=12vx2, HAVDD=AVDD=VGH=VGHD=0v FB_TRDY_3=0v. b. TV On: red light off, sound on, backlight on, dark screen. on power board: output=13v ch1=124v ch2=82v, on main board: SW=3.3v PW=13vx2, HAVDD=AVDD=VGH=0v FB_TRDY_3=0v VGHD=0.1v. It seems that video part of the main board is not working too? Maybe both of left-screen and right-screen be faulty? It seems not to be possible. It is same if only disconnect anyone of the four screen connectorsillustration tv . 4. Connect both of the two screen connectors to main board connecting to power board, it can't be turned on/off normally. Dark screen, red light&sound&backlight blink 2 times for 2 seconds then all off. on power board output=13-12v ch1=115-105-0v ch2=77-70-0vbacklight: lightness-a little lightness-dark, on main board SW=3.3-0.1v PW=13-12vx2, HAVDD=about 6-0v AVDD=about 10v-0v VGH=about 14v-0v VGHD=about 11-0v FB_TRDY_3=3.3v-0v It seems that video part of the main board is working now?. And then after 20 seconds the cycle repeats again and again!! I had to unplug power cord to stop it. I replaced the main board and power board, nothing changed.

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