Q. I am about to purchase a larger monitor than my current 17 inch CRT monitor. I would like to change to a 19 or 20 inch LCD. The main use would be for photo editing using adobe photoshop CS and video editing using Adobe elements
A. Well the monitiors that I use with my Mac G5 are from Sams Club. I bought the Samsung Sync Master916v. I set them as a Dual Display setup side by side and they work GREAT. To my knowledge they were less then $300.00 each. Plus they come with a full 1 year return policy from Sams not including the warranty from Samsung..
having problems with monitor?
Q. once in a while my computer monitor starts making a clicking noise and the screen flickers when it is shut down for a while and i turn it back on it works fine does anyone know what causes this and what you can do to fix it
A. What kind of computer monitor ? Is it a CRT (the old kind of monitor) or is it LCD (the thin flat-screen) ?
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In the CRT type
There is a relay that degausses the tube (applies a varying magnetic field to erase any residual magnetism). This relay is supposed to turn on only when the power is turned on, then turn off shortly afterward and not turn on again. If there is a problem with the power control circuit it might be turning that relay on, which turns on the degaussing coil. If it is clicking then the circuit is going bad, turning the relay on and off.
Another type of clicking noise can be caused by the input circuitry being unable to keep track of the "scan rate" which determines the resolution of the image on the screen. When the circuit changes resolution there is a loud click. If this control circuit is going bad you would hear clicking.
CRTs have high-voltage power supplies for the picture tube; if the transformer is going bad there might be clicking, but usually it buzzes.
When you turn off the monitor the power supply still has power in its capacitors and as those discharge the circuit going bad behaves erratically and causes screen flicker.
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In LCDs you do not have degaussing coils. But the monitor still has circuits that detect the scan rate to display the correct image; if the circuits are going bad it might be making a clicking noise.
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Put the monitor on another computer and see if it still clicks.
If the monitor does not click, your video card or circuits in the computer to be suspected as going bad, sending out bad video signals.
If the monitor does click, you will need to get the monitor repaired or replaced. Repairing monitors is sometimes not worth the trouble; the technician might have to get a service manual for it and then have to get parts. I have been told the Chinese manufacturers are not very helpful with supplying manuals, and parts might be difficult to get. A new monitor is often much cheaper than trying to get it fixed; you can't get much of a warranty on a repair job on old monitors, while you do get a warranty on new monitors.
===== Edit:
I suggest you take it back to the store as it should still be under warranty. Even if the manufacturer's warranty has expired, the store should still maintain the merchandise.
TonyRB
Friday, January 8, 2010
=====
In the CRT type
There is a relay that degausses the tube (applies a varying magnetic field to erase any residual magnetism). This relay is supposed to turn on only when the power is turned on, then turn off shortly afterward and not turn on again. If there is a problem with the power control circuit it might be turning that relay on, which turns on the degaussing coil. If it is clicking then the circuit is going bad, turning the relay on and off.
Another type of clicking noise can be caused by the input circuitry being unable to keep track of the "scan rate" which determines the resolution of the image on the screen. When the circuit changes resolution there is a loud click. If this control circuit is going bad you would hear clicking.
CRTs have high-voltage power supplies for the picture tube; if the transformer is going bad there might be clicking, but usually it buzzes.
When you turn off the monitor the power supply still has power in its capacitors and as those discharge the circuit going bad behaves erratically and causes screen flicker.
=====
In LCDs you do not have degaussing coils. But the monitor still has circuits that detect the scan rate to display the correct image; if the circuits are going bad it might be making a clicking noise.
=====
Put the monitor on another computer and see if it still clicks.
If the monitor does not click, your video card or circuits in the computer to be suspected as going bad, sending out bad video signals.
If the monitor does click, you will need to get the monitor repaired or replaced. Repairing monitors is sometimes not worth the trouble; the technician might have to get a service manual for it and then have to get parts. I have been told the Chinese manufacturers are not very helpful with supplying manuals, and parts might be difficult to get. A new monitor is often much cheaper than trying to get it fixed; you can't get much of a warranty on a repair job on old monitors, while you do get a warranty on new monitors.
===== Edit:
I suggest you take it back to the store as it should still be under warranty. Even if the manufacturer's warranty has expired, the store should still maintain the merchandise.
TonyRB
Friday, January 8, 2010
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