I have a 2004 Toshiba 42H81 that plays sound, but the picture is awful. When the power is on the TV but not on the cable box, the screen is slightly blue and has a few vertical white lines that appear and disappear quickly on the right hand side of the screen. When the cable box is turned on, the picture is unrecognizable because of the horizontal lines going through the entire set. The vertical white lines are still there as well.
I've searched this site for a problem like mine, but didn't find one. Any solutions are appreciated.
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If you have picture but no sound and problem is not cable settings or source selection, then the faulty part is usually the inverter.
Firs test the TV. Check if there is on screen display (the menu). If OSD is displayed, then the problem is either cable/source settings or a defective input circuit. Try also disconnecting power cord for ten minutes and then up to one hour. Power drain may fix temporary faults.
If all that does not work, then the problem is either inverter or power board. In some case the main controller board may also be responsible.
inverter is a power board that converts DC voltage from PSU into AC
high voltage, powering the whole backlight system. When there is a
problem with the inverter the whole screen will be completely dark,
while the sound keeps going on. A problem with the inverter will mean
that either inverter is bad, power supply is bad and does not power the
inverter, or main board is bad and does not turn inverter on. Those are
the three parts that must be tested when the inverter does not fire up (
sound and dark screen). Here broad description of how to test the three
parts: Before proceeding...
a user level point of view, all you should do is disconnecting power
cord for fifteen minutes, and testing the TV with different connected
devices and different cables (e.g. with a DVD, a receiver box, using a
SCART and using HDMI). Disconnecting power will allow a power reset that sometimes can fix temporary problems (usually not sound but no picture). Testing different cables and devices excludes the chance of the problem being given by a bad connection.
that does not work, call the manufacturer at the number listed in the
owners manual. Verify warranty status (warranty may have expired 09/10).
Make present to the operator that the TV is just out of warranty, and
that the fault occurred without you making any wrong use of the TV. Some
manufacturer in some case apply special condition.
Here replacement parts for most flat panel TV models:ShopJimmy.
I sugest you to change the video resolution settings on the PS-3 to see if TV sets to any one resolution...if you have any other video out (analog from PS3)...connect the out to TV and check video at different resolutions. If PS3 has Deep Color settings turn it OFF.
Are you using the rf antenna input for TV or 1 of the VIDEO inputs from a cable box or sat receiver. If the latter check to see if you unplugged the audio fron the box White and red wires from box. If thats ok Plug that dvd player into that input using the cabes from the dvd player .If you now have sound change ables from box. if still no sound cable box bad. If still no sound from that input check for solder connection on input jacks. If antenna input is used replace the tunner intv.
This TV does not use a bulb. It is a Picture tube type set. *No picture but there is a dim background. Menu works. This is caused by a bad signal. Perhaps the video cable is bad if you use a cable box. The HDMI cable may not be working right. Try a new cable. *No picture, no menu This could be caused by a failure in the part that draws the picture up and down (The vertical). Can also be the side to side (Horizontal) or a high voltage problem. The last usually kills the sound as well so its not as likely. If the cable does not fix it, you will likely need a technician.
try switching to a different video source and play a DVD or a game system. If the issue is still there try unplugging the TV for 5 min. and then plug it back in.If the problem works fine on all other devices except the video source that has the issue try hooking up the same device your having the issue with to a video source you know works if that works then you have a bad video source on the back of the TV, if it does not work it's either the cable going to the TV or the device itself.
Just Connect signal to tv and run autoprogram. Or use video input jacks from converter to tv ( yellow,white and red video in ) and select tv/video on tv pannel front ( don't need remote control) I hope this work for you.
If the tv does not have sound with out connecting the dvd then you are having a problem in your audio circuit have a tech look at it.if its only when you connect the dvd then you could have connect cables wrong.you cannot route a dvd through a cable box.any dvd s compatible with tv so long as the connections are there. goodluck.