My Toshiba 50HX70 has no video, I can change channels and hear the audio fine. Picture was fine before it died, no convergwnce problems. Fuse F470 is blown but when crossed with another fuse there is still no video. I have the power/def board out on my bench now. Any help would be great.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
a blown channel or maybe a fuse.more likely the channel.it will have to get repaired by a technition.i had the same problem. one side works well and the other side only just hear a little sound and may be crackly
You may have overloaded your audio output with the external speakers(impedance or short wire problem?)as a result the audio out i.c maybe damaged which in turn may have blown one of several fuses in the power supply.maybe regular GMA type fuse or picofuses,you can try replacing blown fuse but if they blow right back you`ll need the help of a repairman
These unit will mute the video for a number of reasons. F889, F890, F891, F850, F470 one of these fuses is open then fine out what caused the fuse to open. This an older unit so parts may be hard to find. The cost to repair it should not be to bad.
ok well both of you have had the same problem i did... to fix the picture problem check the circuit board pd0074 its the yellowish looking one next to the green one which has the ic's on them... ok on the pd0074 board look for fuses f470, f850, and the f851 to see if they are blown the f470 is what turns the tv on and the f850 and f851 are what protect the convergence ic's chances are they are blown.... the sound i don't know how to fix that problem but i would check all the fuses on that board to find out if one more is blown that what i did but the only thing is that i could get the actually fuses for the tv i was told by a tv repairman in my town to just take 2 wires sodder them on to the fuse and take a glass fuse and put electrical tape around them and it worked like a charm... so i hope this helps you.... the most i spent was 30 dollars for the ic's and the fuses all together and i was quoted at 450 to do what i did myself