A couple years ago my father-in-law bought this nice HD TV as an anniversary present for his wife. It never worked with their standard cable box so it ended up sitting in the guest room, neglected, until my husband and I got involved. I even ordered an HD cable box hoping that would fix the problem, but nothing works. Plugging a coax cable direct from the wall to the TV won't work either. I've spent all day fiddling, googling the problem and chatting with Comcast's reps and I am about to just give up and throw the TV against the wall. Should I?
SOURCE: No power to TV. Will not turn on.
I had the same problem... I fixed it by replacing 4 bad capacitors on the Power Module PCB.
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SOURCE: Actually it a lnt5271f, but...
Your cable line coming to the house may be fine, but each device has a section of cable running to it separately. This will be coming from one or more splitters leading from the main cable. Follow the cable line that leads to your new problematic TV, to verify that both ends of the cable are firmly connected.
If you use a cable box then send the signal to this TV, be sure you have the cable/cables correctly and firmly attached/seated in order to get the full signal strength.
Also make sure that the cable is sound and not damaged or frayed in any way from end to end.
SOURCE: connecting HD cable box to DVR too HDTV
When I hooked up my HD cable box using an HDMI cable, I had to go into the cable screen menus and select HDMI output. You may have to do something similar when using an S-video cable. Your DVD recorder doesn't seem to have an HDMI input, so you'll have to use the S-video or (worst case) composite video (red, white, yellow cords). Your cable box may also be scrambling the signal so that you can't record. That may be why you can record by bypassing the cable box.
SOURCE: No cable signal on 32" flat panel Olevia tv
When you write 'tuner,' do you mean the internal TV tuner or do you have a cable box between the wall connector and your set's input?
If you are connected from the wall to the set, then the sensitive circuitry (it may only tolerate a few volts max video) is damaged.
If your set was a couple of decades old, it might be fairly easy to repair.
If the set was damaged via the cable service, you may have some recourse unless your cable provider has seen fit to absolve themselves from liability, I suspect they have.
I do not know your set but it is not impossible that the video input circuitry for cable and antenna is on a smaller assembly that processes it before reaching the main board.
The latter has obviously survived since you still have the other functions.
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