I have picture but no sound
Check whether the audio is muted by accidental press at remote control button. Enter its sound menu, and check it. If muted, as you know there will be no audio output. If not muted, check the speaker/s. If found OK; check and replace the damaged component/s at its audio output section circuit board. If needy, replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
SOURCE: Hitachi Plasma TV model P50H401
I think you have problems with the digital main PWB.
If the power PWB failed, turn off and change the pilot ligth to red.
SOURCE: 42edt41a hitachi plasma tv went dark sound ok
sounds like your y and z drive boards over heated and need replacing...
SOURCE: Hitachi Plasma P50S601 no picture sound OK
probably needs new scan drive board along with upper and lower buffer boards. it wont be cheap and its best to have a tv shop do it.
SOURCE: Hitachi plasma screen black. blue light on... no picture though.
Replace digital board. Common for this set.
SOURCE: black vertical strip on Hitachi plasma
rcrumpsi
Did this fix your issue? I have the same issue with this model. If so, was it very expensive?
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