20 Most Recent Hitachi 55HDX99 55 in. Plasma HDTV - Page 8 Questions & Answers


Most likely your Tv has a bad Timing controller board or the ribbon cables that connect to it

Hitachi... | Answered on Mar 07, 2018


When electrical equipment gets wet the absolutely last thing you should do is switch it on to check if it still works as that can cause expensive damage, terminal damage and even fire.

The appliance should be isolated from the electrical supply or battery immediately. It is a good idea to remove whatever casings and covers that can be removed and carefully mop up whatever liquid that is obvious. Turn the appliance over in various directions to drain any liquid and repeat the mopping operation until no more liquid is visible.

You didn't say what the liquid was?
Clean water is relatively ok but other liquids could have permanently killed it unless the affected circuitry is washed/cleaned.

Once the initial mopping out has been completed the appliance should be positioned near a warm radiator in a well ventilated area. Smaller items can be positioned on the radiator or placed in the airing cupboard.
Complete drying will take up to several days. I usually allow 2 weeks of gentle warmth and good ventilation before reconnecting to the power supply.

Hitachi... | Answered on Mar 03, 2018


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Hitachi... | Answered on Mar 03, 2018


Down load at Hitachi web site or Google it also on remote control change with input button

Hitachi... | Answered on Mar 03, 2018


picture board problem and unless you are a qualified ration technician , fixing it your self will cost more than having a shop do the job

Hitachi... | Answered on Feb 23, 2018


Hi ,
get someone to check the power supply something is wrong could be some capacitor have blown etc . just check the power supply the problem is there.

Hitachi... | Answered on Feb 13, 2018


no but you do need an internet connection via wireless wi fi or via an ethernet cabled computer network .

Hitachi... | Answered on Feb 07, 2018


with that age it will need a good clean out, just and the mirrors cleaning, thats the first part, mabe needs a new bulb. and the color wheel will need looking into to make sure its not faded, you need a non smear cleaner, alcohol base, as it will dry better and lint free cloths, to clean the chamber out but dont use on the colour wheel as this will damage it, when its all cleaned then have a see how it displays, it should be better. lence is safe to clean with the alcohol cleaner. just make sure you don't dislodge anything, and take it slow removing the light chamber and mirrors.

Hitachi... | Answered on Jan 24, 2018


You have a CCFL lamp that is failing in the panel, time for a new TV

Hitachi... | Answered on Jan 22, 2018

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