17" Viewsonic LCD monitor

For starters, how about a make and model and age information???

Stop farting around replacing parts at random. There are three possibilities:

1. A bad regulator on the display board (there are probably three of them). These are usually three terminal SMT devices. Identify them by looking up the part numbers. Download the datasheets, and check the output voltage.
2. Bad caps on the power supply allowing enough noise into the video card to cause the onboard regulators to drop out of regulation. Replace them all with good quality low ESR types like Panasonic FM or FC series.
3. Bad caps on the display board. Again, replace with good quality parts.

PlainBill

You sure the resolution you're sending it is in range? Shutdown might be normal for wrong video rates.

G=B2

The model of the monitor is VA1716W. It's about 1 year old.

The main filter capacitor was out of tolerance, that's why I replaced it.

A few capacitors in the video board was also replaced, but the results were the same.

Will try to change the resolution and plugging it in again.

On Sun, 7 Mar 2010 15:49:46 -0800 (PST), snipped-for-privacy@yahoo.com put finger to keyboard and composed:

VA1716w User Guide:

"WARNING: Do not set the graphics card in your computer to exceed the maximum refresh rate of 75Hz; doing so may result in permanent damage to your LCD display."

- Franc Zabkar

Pretty rubbish design if it can actually be damaged.

Sylvia.

Possibly this was carried over from a CRT manual by an ignorant writer.

It's not immediately obvious why this would damage an LCD display's drive circuitry.

My extensive experience tells me the LCD monitor won't function out of its specified resolution and sync. Mine will just say "out of range"

True. But the issue is damage.

I'll set my Samsung 760 LCD up on my PC, adjust the sync for 100hz and leave it cook for a few hours then get back with you.

Seriously, my interpretation is if the monitor input is out of range the drive falls back to a error state and displays the out of range message. In this state there will be no damage. Keep in mind that this applies to a specific monitor so your mileage may vary with others.

On Tue, 16 Mar 2010 18:30:01 +1100, Sylvia Else put finger to keyboard and composed:

I didn't believe it, either.

My AOC LCD just goes blank when the frequency is outside its limits.

- Franc Zabkar