Monitor won't go on when connected also the power supply is different it was supposed to be a 400 volt and the one that is installed is a 450 volt is there any difference of the voltage? and when i hook the monitor to a different computer tower the monitor comes on it blinks on and off but the picture doesn'''t appear. thank you get back to me soon

Take off the rear and check the high voltage circuit. 120 volts enters follows by a fuse into a small high voltage transformer, then on the other side a capacitor (100 uf rated 450 volts). Check the DC voltage here. I got 380 volts. Should be at least 390 volts or more. If anything less, you will need to replace this capacitor. I used two capacitors from some old power supply - 150 uf and 220 uf rated at only 400 volts connected them in parallel and TV is back to normal.

Check the power board, where 120 volts enter the TV. After the fuse, there is a small high voltage transformer. And on the other side, there is a capacitor (100 uf rated at 450 volts), check for 390 volts to 400 volts DC. If you have less than 390 volts, change the capacitor. I got two capacitors from old power supplies - 150 uf and 220 uf both rated at 400 volts. I connected them in parallel and the TV is back to normal.

Same thing happened on my Samsung. Searched the web and it was the high voltage circuit near the power supply board where the 120 volt plug is. It should have a capacitor (some TVs use two capacitors) to maintain the 400 volts circuit. The capacitor should be or need around 300 uf (microfarad) at 400 volts to 450 volts. If it drops to 380 volts or less then the TV shutdown, the inferRed does not work, etc.

Check the power supply, the high voltage circuit, which near where the plug-in from the 120 volts. There is a capacitor rated 450 volts at 100 uf (microfarad). (Could be more than one capacitors). The high voltage at the capacitor should be around 390 volts, anything less and you will need to replace this capacitor (or capacitors). Replace with a 300 uf at 400 to 450 volts. Got mine off some old power supplies.

My Samsung 50 inch had the same problem. Searched the web and it was the only capacitor in the power board that needed change, voltage was 382 volts. Replaced the old 100 uf 450 volts capacitors with two capacitors 150 uf 400 volts and 220 uf 400 volts in parallel and measured the high voltage at 390 and the TV was back to normal. (Make sure the capacitors from an old TV and computer power supply is rated for at least 400 volts.

Samsung has three board. The power board is the one on the right and is where the 120 volts plugin. There should be only one capacitor rated at 100 uf at 450 volts. Measure this voltage - should be 390 volts. If not, change this capacitor to 350 uf with a rating of at least 400 volts (to 450 volts). I was lucky to have a old microwave and a old power supply laying around the house. I have a 120 uf and 220 uf both rated at 400 volts, and when I connected them in parallel (370 uf) and changed out the old one. The TV works fine now.

Make sure you have connected into the correct video port. DVI should be used for LCD monitors and VGA should be used for CRT monitors. Since both ports look the same people often get confused. Try it and let me know.

Sai.

you will need to replace your power supply by the sounds of it, pending on your devices, a 450 to 500 watt power supply should do the trick.
Just make sure that you have the proper power connections on it like the IDE connectors or sata

The D-450 Zoom is an improved version of the D-400 Zoom. Both models have the following features: •1.3 megapixel resolution •3x optical zoom lens - 2x digital telephoto •Stream-lined compact form design •Automatic focus, metering, and white balance •Built-in, pop-up electronic flash •Real-image optical viewfinder •LCD monitor •Buffered RAM memory; burst shooting •Video output to TV •12-second self-timer •8 meg SmartMedia included. Larger capacity cards available. In addition, the D-450 Zoom has the following features: •A larger buffered RAM memory permits rapid shooting (real-time shooting without having to wait for the image write) and a true sequence shooting in more quality modes: Memory Card Storage Capacity Shots Frames per second Quality Mode 10 2.0 SQ 8 0.8 HQ 4 0.8 SHQ •A new high-resolution glare-free LCD monitor screen that can be easily viewed at any angle and even in bright sunlight. The new monitor also uses less power •Automatic ISO adjustment from ISO 160 to 640. Manually selectable ISO 160, 320, and 640 •New Slow-Synchronization flash mode which enables the use of the flash on shots requiring long exposure (such as night time photography) •Image playback now includes an easier to use index mode of 4, 9, or 16 images. A 3x magnification inspection mode allows easy viewing of image detail •Overall power efficiency has been improved. 1.5 to 2 times more battery life compared to the D-400 Zoom •D-450 Zoom comes in a Champagne Gold finish NOTE: The D-450 Zoom digital camera does not include the Olympus FlashPath floppy disk adapter (which was included with the D-400 Zoom). The FlashPath adapter is available as a separate accessory.

The D-450 Zoom is an improved version of the D-400 Zoom. Both models have the following features: •1.3 megapixel resolution •3x optical zoom lens - 2x digital telephoto •Stream-lined compact form design •Automatic focus, metering, and white balance •Built-in, pop-up electronic flash •Real-image optical viewfinder •LCD monitor •Buffered RAM memory; burst shooting •Video output to TV •12-second self-timer •8 meg SmartMedia included. Larger capacity cards available. In addition, the D-450 Zoom has the following features: •A larger buffered RAM memory permits rapid shooting (real-time shooting without having to wait for the image write) and a true sequence shooting in more quality modes: Memory Card Storage Capacity Shots Frames per second Quality Mode 10 2.0 SQ 8 0.8 HQ 4 0.8 SHQ •A new high-resolution glare-free LCD monitor screen that can be easily viewed at any angle and even in bright sunlight. The new monitor also uses less power •Automatic ISO adjustment from ISO 160 to 640. Manually selectable ISO 160, 320, and 640 •New Slow-Synchronization flash mode which enables the use of the flash on shots requiring long exposure (such as night time photography) •Image playback now includes an easier to use index mode of 4, 9, or 16 images. A 3x magnification inspection mode allows easy viewing of image detail •Overall power efficiency has been improved. 1.5 to 2 times more battery life compared to the D-400 Zoom •D-450 Zoom comes in a Champagne Gold finish NOTE: The D-450 Zoom digital camera does not include the Olympus FlashPath floppy disk adapter (which was included with the D-400 Zoom). The FlashPath adapter is available as a separate accessory.