Half the screen on my high-def monitor has gone out.
The bad half of the screen is not out, but it had lines and patterns that reflect the colors of whatever is on the screen. I checked the cable connections and that didn't seem to help. I also checked it without being connected to the CPU and it still had the problem, so it doesn't seem like a video card issue.
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Re: Half the screen on my high-def monitor has gone out.
Sounds Bad, hows the warranty? there maybe a problem on the signal input, I suspect the the screen actually is OK itself but the board controlling it or the signal coming in is not functioning properly have you tried another input?
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probably the 2 ribbon/flex cable(s) aren't connected correctly between the T-CON board and the Scan boards that are connected to the screen/panel! If not replace T-CON board, and if that does'nt work the screen/panel is most likely bad!
All Plasma and LCD ts have boards that control vertical and horizontal output to their respective areas. They are connected to the screen by ribbon cables. If one of these boards fails all together, has a failed chip, a bad connection, or a bad ground somewhere it will result in a black line in the area of that board. A bad ribbon cable connection on the bottom will result in a vertical black bar though the screen. Many times resetting the connection will fix it, if the ribbon cable has been nicked there could be a severed connection. They an sometimes be fixed, but it is a pain. An yes I have done it, but the bar is gone. The same will happen if the chip that outputs to that area opens. The connectors are the first place to look paying close attention to the cable, they are extremely delicate so great care must be taken. Hoping this will helpout
Please perform the following steps to ensure your printer is physically
1) Disconnect the printer cable that is connecting printer
to the computer. 2) Turn the printer ON by holding down the POWER button for
about 3 seconds. 3) Load A4 or LETTER size paper in the sheet feeder on the
back of the printer. Press the SETUP button to enter Setup Mode. 4) Press
the green button next to the LCD screen until you see NOZZLE CHECK is displayed,
then press the COLOR button to print the nozzle check. 5) The printer will
print a pattern displaying a number and a nozzle pattern with black & color.
Examine the nozzle check pattern that has printed. Each staggered horizontal
line and straight vertical line should be complete. 6) To exit the SETUP
mode, simply press the COPY mode so that it is illuminated or the copy options
appear in the LCD.
If the nozzle check pattern page doesn't print or if
it prints with gaps or missing sections, the print head may need cleaning or the
ink cartridge(s) may need to be replaced.
If the nozzle check pattern
page prints correctly, the problem may be with your software settings, the
interface cable, or your computer.
From my experience, lines either vertical or horizontal in whatever color is an indicator of a failing screen or a bad cable...either the cable is going bad or there is a poor connection on one or more of the pins that either connects to the back of the LCD or the motherboard.
Most likely a bad Vertical IC or bad connections on the vertical IC. don't continue trying it on. If you have a bad connection it could do more damage. You also could damage the CRT ( picture tube ). If you remove the cover and look at the bottom side of the PC bord with a good magnifiing glass you may see what looks like rings around the leads comming from the Vertical IC. The Vertical IC is mounted on a heat sink usually towards the front of the set looking from back. If you do see the rings around the leads try reheating with a solder iron. If this dosen't fix you most likely need a new IC.
Well, there probably isn't any relation between the two problems occuring exept for the timing. Magnetism won't affect a rear projection LCD.
I would say that your description is a bit odd, though. Usually on this model, there is a blue blob that shows up, eventually turning into a blue haze, and a star pattern of stuck pixels. It almost sounds like you have a bad set of component cables. On the SXRD's, they usually turn green.
Does it do it on all inputs (including the channels)? If it does, then it is the optical block. If it does not, then I would suspect that it is cable-related. If it is the optical block, then there is no way that any input can be different from the others (except for digital/analog differences, but those are usually obvious with patterns vertically on the screen).
If it does not look the same on all inputs or channels, change out whatever cables you are using. A loss of the red or blue cable in a component can give the symptoms you describe.
If you do a nozzle check...do a cleaning...then do another nozzle check, you can "read" the patterns to see exactly what the problem may be. If the first nozzle check is missing half, then you do the cleaning, and the second is missing half also, check the pattern of the box to see if the missing nozzles are jumping around. If the pattern is exactly the same, you have clogs. If the pattern jumps around, you are having ink starvation issues, and may need dampers.
You may want to do the ff. just to make sure your printer is physically functioning.
1. Disconnect the printer cable that is connecting printer to the computer.
2. Turn the printer ON by holding down the POWER button for about 3 seconds.
3. Load A4 or LETTER size paper in the sheet feeder on the back of the printer. Press the SETUP button to enter Setup Mode.
4. Press the Up or Down arrows to select NOZZLE CHECK. Press the OK button, then press OK to print a nozzle check.
5. The printer will print a pattern displaying a number and a nozzle pattern with black & color. Examine the nozzle check pattern that has printed. Each staggered horizontal line and straight vertical line should be complete.
6. To exit the SETUP mode, simply press the COPY mode so that it is illuminated or the copy options appear in the LCD.
If the Nozzle Check Pattern page does not print, prints out with gaps in it or some of the colors do no appear, then there is an issue with the printer. That means that troubleshooting is required on the printer prior to using printer on the computer.
If the Nozzle Check Pattern page prints correctly and completely, the problem may lie within your software settings, the interface cable, or your computer.