Question about RCA 20F420T 20" TV
When we turn it on a skinny blue line goes across the screen, about 3" from the top. It looks like the whole screen is compressed into a little line, because you can almost see the channel number. It's only a year or 2 old. We've tried unplugging it for a couple days, shaking it, and disconnecting the cable. Any suggestions?
SOURCE: rca 20F420T
Hi, I just had the same issue a few days ago. When you are using the universal remote, make sure the "tv" button is not blinking. Just press it and then you will be able to use the volume up and down and the channel up and down. I was able to use a universal remote, and unlock the fpa. Good luck!
Posted on Sep 26, 2007
SOURCE: Picture Problem
This is a problem (one of several) caused by poor solder connections on the circuit board. RCA uses the metal shield can surrounding the tuner circuitry (the area where the cable connector is located) to provide several ground connections. Many of these connections go bad (cracks form) and the missing ground connections cause the "picture shrinking" you see. Other problems are loss of tuning, set that intermittently turns off or on by itself, set that won't turn on at all, and even more.
The repair involves removing the circuit board and flipping it over so you can remove a metal cover on the bottom, repairing the several (many) affected connections, and then reassembling. This is a relatively easy repair for someone with soldering experience and the right tools (both a high-heat soldering gun and a low-heat iron are needed). But because of the fragile circuit traces in the repair area it is possible to do more harm than good if you don't know what you're doing.
RCA produced a service bulletin several years back detailing the areas to be repaired (although they still refused to admit they just hadn't soldered the places adequately to begin with). I'm not home now so I can't check my files but I'll see if I can find a link and add a comment later. When I was in the service business we charged around $60 for the repair. You might want to get an estimate from a shop (they should already be familiar with this trouble). Or if you're looking for a reason to buy a new set, try the repair yourself. If you're successful you've saved yourself the money. If not, it wasn't working anyway!
Posted on Feb 02, 2009
You need to replace the microprocessor. GoodLuck there is 52 pins to unsolder and resolder a new one. The price for the chip may bee about $35
Posted on Jun 26, 2009
ITS NOT PROBLEM WITH TV TIMER...
ITS PRBLEM WITH TV AC TRANSFORMER WHICH IS INSIDE,,
ONE OF THE POSITIVE COIL INSIDE TRANSFORMER ITS SHORTING,,
APPROACH TV TECHNICIAN...
Posted on Nov 11, 2009
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