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Old 02-22-2019, 06:27 PM
 
4 posts, read 1,387 times
Reputation: 15

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We have a 2002 analog Panasonic TV that has worked great since day one.
It is connected to an RCA brand digital converter box for signal.

This week the TV and converter box turns on, but after about 10 minutes, the screen starts to scramble and then the picture starts to cut out. A few minutes later the screen turns blue and there is no sound. Some times after a couple of minutes the picture and sound will come back on, sometimes the TV just shuts off. The light on the converter box is still on and so is the power to the TV.

We moved both the TV and the converter box to a different electrical outlet and that didn't help.
We unplugged the TV, converter box and removed all cables for 20 seconds and that helped for about 2 days.
Now the same thing is happening again.

Any suggestions on what's going on and how to fix it?

Thank you.
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Old 02-22-2019, 06:57 PM
 
Location: Madison, Alabama
3,971 posts, read 2,033,713 times
Reputation: 3043
Just a guess, but it sounds like the converter box may have failed.
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Old 02-23-2019, 01:47 PM
 
4 posts, read 1,387 times
Reputation: 15
Thank you. We had a spare Magnavox converter box and tried that one. A half hour later, picture started to cut out again and the blue screen happened again but just for a few minutes, then all was fine. We used the same cord from old box so guess next step is swapping out the cord.
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Old 02-23-2019, 08:03 PM
 
Location: Michigan
2,313 posts, read 1,581,796 times
Reputation: 5367
Wow, a 17 year old tv set? You can now buy a 50" smart HDTV for like $250.00. Converter boxes are now about $25, but analog tv's aren't available unless somebody gives you one from out of their basement.

Don't you think it's time to upgrade?

https://www.walmart.com/browse/elect...BySize_50_Inch
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Old 02-24-2019, 11:45 AM
 
Location: The Berk in Denver, CO USA
14,390 posts, read 21,075,024 times
Reputation: 23913
This TV is larger than your current one.
https://www.walmart.com/ip/Sceptre-3...BV-SR/55427159
It cost $90 + tax.
Buy a new TV.
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Old 02-24-2019, 01:24 PM
 
4 posts, read 1,387 times
Reputation: 15
We were wanting a small TV, since it is for the bedroom and also funds don't allow for much.
We found a 19" with great reviews for $70.00
Interestingly enough, the old one has stopped acting up after the purchase was final, go figure, huh.
Thank you for your response.
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Old 03-02-2019, 12:09 PM
 
26,983 posts, read 33,898,670 times
Reputation: 34286
Quote:
Originally Posted by Justmecsp View Post
We were wanting a small TV, since it is for the bedroom and also funds don't allow for much.
We found a 19" with great reviews for $70.00
Interestingly enough, the old one has stopped acting up after the purchase was final, go figure, huh.
Thank you for your response.
I have a 20" you could have for free. It has a built in DVD player as well. Where are you located?
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Old 03-31-2019, 06:43 PM
 
1,292 posts, read 452,249 times
Reputation: 2557
Sounds like the TV's tuner section is dying and the squelch is closing (I had a JVC television that had blue-screen squelch, I think they called it something like "noise muting" or something lame like that; really made DXing a pain in the ass). If there's a menu to disable it, try it, but you're better off using the composite (yellow-white-red) or S-video from the ATSC receiver to the television which you should be doing anyways if you have it.

The built-in RF modulators in ATSC receivers, especially old ones, are improperly designed, poorly-built cheap pieces of horse***t (especially in the Apex and "RCA" units) and are really meant for last-ditch compatibility with TV sets that don't have better hookup options.
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Old 03-31-2019, 08:09 PM
 
4 posts, read 1,387 times
Reputation: 15
Thank you for your reply and the information too! We really liked the TV since it was small for the bedroom. It also had a nice "night" feature that dimmed the screen when we wanted it to not be so bright while falling asleep. It also had a built in radio and VCR so we could watch an old tape when we wanted. Doubt the VCR portion of it will work now.

Watched a YouTube video of a guy that had one just like it and he mentioned a resistor that goes bad on them. He obviously was a TV repair person and knew how to fix it. I'm not interested in dealing with trying what he was talking about in the video.

Now we just have to figure out how to dispose of it properly.
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Old 04-02-2019, 01:47 PM
 
1,292 posts, read 452,249 times
Reputation: 2557
Quote:
Watched a YouTube video of a guy that had one just like it and he mentioned a resistor that goes bad on them. He obviously was a TV repair person and knew how to fix it. I'm not interested in dealing with trying what he was talking about in the video.
Shango066? He doesn't deal a lot with solid-state equipment though.

Quote:
Now we just have to figure out how to dispose of it properly.
Just chuck it in a dumpster somewhere and be rid of it. Everybody else does. At least once every couple months I find somebody's old CRT they threw in the dumpster behind work. Doesn't bother me any. (I actually got a perfectly good 36" Grand WEGA triniturd that way a couple years ago!) Treehuggers know what they can do with themselves.
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