Picture goes dim and shuts itself off. - Hitachi Televison & Video

The old Mitsubishi units had a super capacitor in the logic circuit instead of a backup battery. This capacitor became leaky over time, causing the problem you describe among others. Number one symptom is set has audio and dark or black picture when powered up. As the super cap charges to full voltage, picture comes and goes.

If its a Sony and a DLP a lot of times just before the lamp life ends it gives a darker or dim picture---if it gets dim enough set will shut down.

The problem could be the backlight or its inverter is bad. IF picture remains but lights only go out. Also it is normal for the screen to go black if the laptop is not used.

If the picture itself remains on the display but it just goes dim, try turning up the brightness, if noting happens, most likely the backlight of the screen or its inverter is or has gone bad.

Would need to be confirmed in person.

If the picture does not remain on the screen and the laptop shuts off, your charger might not be working, and your battery is low.

Would need to be inspected in person.

With a dim picture even if lamp looks ok I would make it suspect number one---going to have to decide if you want to buy a new lamp to find out--average life is 1-2 thousand hours.

I had the same issue occur on my ln55c650 (screen flickering, not the actual image but the front lights flashed which was too distracting) and they had to replace the power supply pc-board. Seems some issue with power module in the TV rather than the side panels. Luckily for me, TV was still in warranty.

Hi, if it is an inverter microwave and the problem is cycling every 2-3 seconds, my experience is the magnetron has most likely gone short circuit and the inverter board is shutting down to protect itself and then restarting, hence your symptom.
DO NOT try to test this unless you are experienced with extra high voltages - the voltages present/stored in a microwave even when powered off can kill you.

Try replacing the Lamp.

Your lamp is getting dim. You need a new one.

A reddish picture is the classic symptom of worn out backlight bulbs.
Sensor circuits usually shut down the power to the bulbs in a second or so.
Monitor Mike.

My LT37HVS was purchased in 2006 and the LCD light engine "blew" with a loud noise and only displays super dim picture-in-picture component feeds.

Need service for a quote. HELP!