Question about Televison & Video
Just check the vertical section, might be lost contact vertical IC. Just resolder.
Posted on Feb 26, 2009
Wow I miss these days.. Replacing 100UF caps for Vert. circuits on old RCA's and similar.. Got into Laptops now but happened-stanced on this website and the Premtech knows what hes doing.. (Remember the GE/SYL chassies w/ Cold joints in the integrated tuners)?.(snowed out) Thousands). Have fun guys and I'm here to help as well. (Laptops High end stereos, and Hi-def TV's only please).. (Hate telling people their toaster ovens are replacable.. (Blue haird's) Good posts!
Posted on Jan 13, 2008
I would suggest to locate a part that looks like the one on this link and re solder all the pins, also check for any high power resistor nearby the IC295890 and put some fresh solder.
Let me know if you need further assistance.
Posted on Aug 07, 2008
I had the same problem on a 36" Hitachi TV about 7 years old. After reading comments on this and other pages I went and bought a soldering iron not knowing what I was going to do with it.
After trying to find a loose connection with the power off- with no success, I then tried with the power on. Not the smartest move, but I was able to find the problem.
If you follow the colored wires (blue, green, red, yellow) from the back of the tube they will come together at a connector that plugs into a card at the bottom of the set. That connection was no secure. Since reseting that connection I have had the clearest picture since puchasing the TV new.
I am sure it is obvious that I don't have an electronics background, and I don't have an explaination as to why this worked. I just know it did. I hope this helps someone.
Posted on Sep 20, 2008
I have a similar problem on my CRT computer monitor (AcerView 76c). It is an old screen and I think it is just at the end of its life, much like your TV. Having some background in physics, I would be pretty sure that the problem is with the cathode ray tube's vertical deflection system. The horizontal deflection electrodes are working while the vertical one is not. This results in a display of a single horizontal line (or in my case, a few superimposed) in the centre of the screen. Where both X and Y (horizontal and vertical) deflectors fail then the electron gun firing would result in a single bright spot in the dead-centre of the screen.
So really, we have no choice but to move on and buy a new set as repair is probably just as, if not more, expensive than replacement with a new device. Seeing as your post was in 2007, I hope you managed to solve the problem.
SZ (Sydney, AUS)
Posted on Oct 05, 2008
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Posted on Jan 02, 2017
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