We have a hitachi model 401 and was told the power capacitor was bad and wasnt very expensive do you have any idea what it looks like , location etc. It is very strange the power indicator comes on and the blue light flashes to indicate a problem ...any ideas or useful links?

I dont know this model but Normal symptom of bad light bulb. Download and Check the manual trouble shooting section. Look for fuzz and check. Try to examine the bulb but dont touch it (because it is very sensitive to oil and dirt, if it ever works again). Look for any discolor or broken fine wires inside the bulb. Bulbs are generally very expensive so evaluate weather you want to keep the old TV or get a newer model with hi-res, etc.

YOUR TV POWER SUPPLY WENT BAD. YOU NEED TO REPLACE THE CAPACITORS OR THE ENTIRE POWER SUPPLY. IT IS CHEAPER TO REPLACE THE CAPACITORS.. THAT ARE BURNED OR BULGED ON TOP.. ITS EASY TO IDENTIFIED THEM.. YOU CAN GO AT WWW.BESTDIRECTORYSOLUTIONS.COM ON TV SOLUTIONS AND LOOK AT THE PICTURES OF BAD CAPACITORS HOW THEY LOOK.YOU CAN ALSO GET A REPAIR INSTRUCTIONAL PACKAGE FROM THEM, REQUEST BY MAKE AND MODEL.

You must replace capacitors in the power supply. In this unit, the inverters are located in the power supply. As for this particular TV, I have just started to repair these. I have repaired TVs for the past 20 years, and the flat screens are still some what new for me. I will you tell you, we are on the right track for repair. You may look for a skinned capacitor or a bulged capacitor. If the capacitors look fine, you will need an ESR meter to locate those that look good, but are not. Thanks for asking and show all hands of support!

Common problem with model of Hitachi. Get a repair kit from www.TvRepairKits.com

Its a problem with a fuse and a capacitor that cause the issue I am told.

Wrong - Its a bad capacitor and a small fuse. Check with TvRepairKits.com for a kit.

There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

The unit senses a fault in the power circuit. It is either in the power supply unit (PSU) peripherals or in the PSU itself.

• One of the peripherals might be loading down the PSU causing it to shutdown.

1. Check the power input terminals of the peripherals for any short circuit using an ohmmeter.
   
2. Replace any part found to be causing the issue.

• The power supply unit cannot run under load and shuts down. It is usually caused by bad capacitors.
  

1. Check the PSU board for any bad capacitor.
2. Replace bad capacitors with the same specifications.
3. Make sure to replace the capacitors in correct polarity.
4. Bad capacitors look like these:

the power supply of your tv is already damage,maybe one of the components of the is floating,so u need to coldsolder the board and check the diode if it is open.

I had this problem in a 46UX50B (I think that's the model), and it turned out to be some capacitors in the power circuit(?). After the service guy replaced those, it hasn't failed to come on since.