20 Most Recent Hitachi 50V500 50 in. HD-Ready LCD Television - Page 8 Questions & Answers

See below for a link to the manual

Hitachi 50V500 Manual

Hope this helps.


Hitachi 50V500... | Answered on Mar 02, 2011

If has lost color on more than one source( just to verify it's not a bad cable or hook up) it's probably a broken color wheel. You can usually see the color wheel when you remove the lamp. There should be a glass looking disc right where the lamp would shine, the wheel will have segments with different colors.

Hitachi 50V500... | Answered on Feb 28, 2011

Perform Memory Initialization

Hitachi 50V500... | Answered on Feb 26, 2011

Did you replace the Lamp, if so then check your door switch to make sure works

Hitachi 50V500... | Answered on Feb 26, 2011

  • Do not block rear Fan exhaust port. A minimum of a 2 inch clearance is necessary.

  • If the Fan Exhaust port is blocked, the temperature will rise in the Engine assembly and cause a thermal switch to activate, shutting off the unit.

  • After a cool down period and the set is unplugged for greater than 30 seconds, the set will return to normal operation.

  • Upgrade to New Style bottom Filter to avoid premature clogging and over heating.

Hitachi 50V500... | Answered on Feb 24, 2011

First check the door and door switch may have to add tape to keep close

Hitachi 50V500... | Answered on Feb 18, 2011

The tv have clicking sound alot too?Yes,the tv the board that call the Ballast board is dead too.The ballast board only job is to ignite the projection lamp.

Hitachi 50V500... | Answered on Feb 17, 2011


This problem is very common with rear projection TV's.

It is related to one or more of the colour guns being out of alignment or needing to be replaced. The only way to correct this issue is to have a technician come in and fix it or bring it into a repair center. I personally would suggest purchasing a new TV. The cost of getting them aligned is usually more then a basic LCD.

Hope this helps


Hitachi 50V500... | Answered on Feb 12, 2011

That model is a rear projection and the blue spot indicates failure of the LCD panel in the blue path on the optical block of the light engine. You can't buy the LCD panel only, and if you could you would not have access to the equipment needed to align and position it in just the right place, ie perform mechanical convergence... I'd say the unit probably not worth fixing.

Hitachi 50V500... | Answered on Feb 10, 2011

It sounds like a heat problem, i think you are going to have to call out service engineer to read the error codes.
Could be power supply or the control board.

Hitachi 50V500... | Answered on Feb 07, 2011

You should fing the instructioons in the OWNER'S MANUAL.

Check out your OWNER'S MANUAL online at the following link:


Good luck and please comment back and RATE if this was helpful.

Hitachi 50V500... | Answered on Feb 05, 2011

That is a burnt LCD panel caused by excessive heat from the lamp, maybe due to blocked/restricted airways.
It is not likely to get any better and a new LCD unit will be required to repair it along with new filters and maybe a fan.

Hitachi 50V500... | Answered on Feb 03, 2011

Lamps have a limited life. They useually last 1000 hours or so. If the TV is on from 07:00 until say 23:00 every day, that equates to 60 days.
There is no such lamp as a "One time replacement lamp" as they do not last for ever.
The average life of a lamp is just about 6 months.
If the picture is cloudy is probably needs the optice cleaning. It is very fiddly and damage can occur easily so get an authorised Hitachi repair service department to clean it for you. It should be carried out in your home and will take less than an hour. If anything gets broken, it is not your problem if they are heavy handed.

Hope that helps.

Hitachi 50V500... | Answered on Feb 03, 2011

bad optical block/ engine

Hitachi 50V500... | Answered on Jan 30, 2011

Go to www.partstore.com to get a light engine.

Hitachi 50V500... | Answered on Jan 27, 2011

Filter warping due to over heating.

The only repair for any of these symptoms is replacing the Engine Assembly.


To prevent the overheating caused by clogging of the bottom filter, upgrade to the new style bottom filter. Upgrade to New Style bottom Filter

Hitachi 50V500... | Answered on Jan 23, 2011

ok i have two links , one is a video tutorial on youtube which will give you a good visual reference . reasons being , i don't know if you have the lamp and casing bracket or if you just have the lamp . the second link is the actual service repair manual , which on page 29 through 32 illustrates the process of lamp replacement .


on this link just enter secure code and click download and save to desktop , it is a pdf file so you need adobe reader .


if you need more detail info let me know and i will try to find more

Hitachi 50V500... | Answered on Jan 21, 2011

Yes it could depending on what is wrong with set.

Hitachi 50V500... | Answered on Jan 18, 2011

this is the famous pink problem, you need to re-intialize your set

Hitachi 50V500... | Answered on Jan 17, 2011

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