Sharp tv black screen

SOURCE: RCA 27" TV

typical problem with an older set. sounds like the crts starting to fade as manufactureres Im thinking build into a set faults that they know will happen after a certain time frame and most do this is why there are so many reoccouring falures in a tv sets life. this is simply my thoughts on this subject!! You could have your local tv guy shoot the tube (not with a gun!!) with a crt rejuvenator to maybe clean off the grids of the tube. sometimes this will help BUT its a risk also Sometimes it will ruin the picture tube also. I have a set that I rejuvenated the tube 4 years ago as it looked like crap but to this date s its stil looking good as it did when new!

SOURCE: Red Line across Screen

sounds like you have a vertical sweep problem. Where the fault lies cpuld be the vertical output IC the verticle b+ feed, could be the capacitors in the vertical circuit?? Your gonna need to troubleshoot thr vrtical circuit if your not a tech thin my advise is to take the set to a pro for sn est. Good Luck

SOURCE: No Picture, sound is all static

CHECK YOUR VIDEO INPUTS. THE HD SIGNAL IS TAKING OVER ALOT OF THE ANALOG SIGNAL.MAYBE A STRONGER ANTENNA OR ADJUSMENTS MIGHT WORK AS WELL.

SOURCE: Nopicture

No vertical deflection. Vertical output IC, caps.

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!