Running my tv throught my vcr but have no picture only sound

. Try putting you tv set to channel 3 or 4. Try your tv in all modes. Check the back also to see if in the right spots with the wires. Check your channel scan status, try it on anntena and try it on cable, run channel scan on both. good luck. Try vcr wires if cable wires dont work. vcr wires are yellow red and white. Try another cable cord sometimes they get old. Try looking at your remote and setting it to tv.

Is the VCR going through ch 3 or video inputs - if video inputs your TV tuner is likely bad if through ch 3 seeif te picture goes funny on ch 3 without using the VCR the tuner may be bad on higher band channels - smetimes you can remove the tuner and resolder the tuner itself. But if it always works with the VCR just use it that way and don't bother with the fix.

have your tuner check for any cold solder on pins.

YOU HAVE A BAD TUNER OR RF INPUT. IF YOU CONNECT THE CABLE TO THE VCR AND THEN USE THE VIDEO OUTPUT OF THE VCR TO THE VIDEO INPUT OF THE TV YOU CAN USE THE TUNER IN THE VCR TO CHANGE CHANNELS.

I would be inclined to say that there are only two likely problems that you may be encountering. Either you are getting a bad signal feed, or the connectors on the cable are getting old and need replaced. The connection to the cable can break down over time, especially if they have been connected and reconnected several times. I cannot rule out problems caused by the transition to DTV, but that doesnt seem likely if there are only a few channels affected. As far as "selective failure" of the VCR's built-in tuner, I would say that that is also a very unlikely source for the problem If the tuning components inside the tuner had gone out, I would expect to see a problem on all channels watched through the system. If you are having this problem on all channels of the sony, then the tuner could surely be the problem, but if you haven't used it much that would indicate a problem at manufacturing, however since at least one of the machines is working fine on some channels and not on all of them, I would suspect the connections or the signal from your cable company. Contact them first ands see if they are having signal issues, if not try replacing your connectors.

is it snow on screen? if so tuner  problems. rca had recall on tuners on some models bad solder connections in tuner

I was able to connect to my cable box. I used RCA (yellow, red, white) cabling. I connected the Video Out on the cable box to the Video In on the DVD/VC (to the DVD VCR cabling section). I then from same section used the Video Out using RCA Cabling to the the Video In connectors on my Phillips LCD TV. That left only to connect the TV to the cable box using regular TV coax cable. Everything works, although I am going nuts trying to dub from VCR to DVD-R or +R discs.

While there are other possibilities, this is a problem which is commonly caused by bad solder connections that form in the tuner. When you're using the video sources the tuner is out of the picture (sorry, I couldn't resist a pun) so you don't see any problem. It's relatively easy to fix, but it means removing the tuner from the board inside, opening the tuner and resoldering the bad connections. This is a nice TV, so it would be worth getting an estimate for the repair. Because of the time involved, many technicians would rather simply pull the tuner and put in a replacement. See if you can find one who will repair the tuner instead. I always did when I was on the road, and it didn't really take that long. It saves the cost of an expensive part.

I can get sound running through my VCR to my tuner. But no sound through the TV your problem in SIF section &ITS ASSOCIATED components or loose contact in that section. good luck

The set you have has a bad tuner assembly. At this point most likely you would be better off getting a new TV set. Good Luck