Question about Apple Cinema HD 23" LCD Monitor

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No picture began with the problem of difficulty in turning the power on with finger to the power switch senser(finer need to stay there continuesly for a while with white light on and off), finally the white will not come on at all. The power supply is normal giving out 24.5 V. Anyway to open up the monitor?

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Re: no picture

Is there a Mac technical help site or a mac user forum ? these are bit specialist for us PC'rs

Posted on Jun 03, 2007

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Samsung monitor picture clicks off after 2-5 seconds...

Yes, It sounds like the backlight inverter circuit is shutting down. No inverter power, no backlight. On some monitors the inverter circuit will shot circuit the power power supply which makes the power light flash on some it just kills the backlight. You can usually check with a flashlight. Hold the flashlight pointed at the screen and see if you can see any of the icons or background picture. If you can then it is the backlight circuit or backlight tubes, usually the circuit.


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I purchased a ctl 170lx refurbished monitor. The screen turns on for a second and then goes black. The green power switch stays on, but no picture. Any suggestions?

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The Problem may be due to the defective inverter unit inside the monitor. Dry to resolder if any dry joint on the inverter PCB or replace the inverter board.

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If you're not hearing the Windows chime then the monitor may be alright. Connect the monitor to another PC and see if it works. If it does you'll need to concentrate on the PC, probably the power supply.

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Normally when this type of problem happens, the first suspect would be the inverter board, then the filter capacitors and lastly the mainboard.
A defect in one of the lamps and faulty inverter IC may cause the display to shutdown as well. If the lamp is defective, it will send a feedback and cause it to stop producing output signal thus the display just shut off once you switch in ON.

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what is wrong? its damaged internally on one of the pcb boards most likely the power board, you will need to take it in to a service center to know what is exactly wrong

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Sylvania (proview) cl2072b flat panel monitor

Well the first and second paragraphs make me say the Inverter/power board must be replaced.

A white display typically means either your display cable (in your monitor) is loose or logic board is dead.

Either one of these things typically mean take it in for an estimate to repair, and if it's too much, buy a new one.
With your luck I think I might switch to big cheap CRT.

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There is probably a bad capacitor within the monitor that will not allow the picture to "hold" in the on configuration. This will need to be replaced. You can send it back to Phillips, or 17" monitors are pretty cheap these days. I would suggest a Samsung or BenQ. They both carry 3yr warranties.

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