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


I would try that if available but suspect a bad board somewhere in the set--average life on all Plasma sets is 3-5 years so maybe time to upgrade to a new set?

Hitachi 55HDX99... | Answered on May 30, 2012


I don't know how to fix your issue but I have the same tv with a cracked glass front. I would be interested in buying your tv for parts to replace my glass front if you are unable to fix yours. Please let me know. Thanks, Dan
[email protected]

Hitachi 55HDX99... | Answered on Oct 21, 2011


sounds like bad capacitors in the power board. open it up and check for 1s that look like thay have swelling or are opening up. type in bad caps on you tube to see what a bad capacitor looks like....

Hitachi 55HDX99... | Answered on Jun 08, 2011


It is really hard to fix sets like this without voltage checks, but if you have any led lights flashing this may tell what is wrong with your set. Also if there are lights in the back of the set that are flashing on the logic board or the Digi-Main PWB But usually with a bad digi-main you have audio, also check the buffer board and see if any holes lie in the buffers. These are the boards on the far left side of the set looking from the back. The buffer chips are the black square IC's sometime you will see chip pieces out of the buffers. This mean that one is bad.

Hitachi 55HDX99... | Answered on Feb 28, 2011


Hi pardeep76.

I had a similar problem with my 42 in Philips LCD HDTV. I may have the solution to your problem.


Here was MY problem. My Power Supply Board had several bad capacitors. I opened my TV (warranty was expired of course) and found four bulged capacitors on the PSB. Many major electronics companies Philips/Magnavox, Sony, Panasonic, and others were sold capacitors that failed in 2-5 years instead of 10-20. The capacitors fail prematurely due to a lack of preservatives. Unfortunately, they were installed in all sorts of devices and cause a wide range of failure problems.


Here are some options for you to consider.


1. Have it fixed by a professional $$$$$$$??????? (Is it under warranty?)

Remember, TVs CONTAIN HIGH VOLTAGE AND CAN KILL YOU! Do this at your own risk.

2. Open your TV and find PSB. (The board that the power cord plugs into) Check for faulty caps. If you find some (bulged or leaking) bad caps replace the entire board. They can be found online. I would definitely shop around though.


3. Remove and then replace individual faulty caps. This takes some soldering skill.

Caps are inexpensive and if you can take care of it yourself it will save you hundreds.


This may be your problem. If you determine that it might be.

I have a Tip/How TO tutorial on this site that may also help. It will, at the very least, give you a general idea of the process. It gives step by step instructions for replacing caps on PSB #715t2432-2. If this is your board you are in luck. Here is the Link: Fixing the Philips Turns/shuts off on its own problem.


Hope this helps.

If you have any questions for me, please comment on this page. I will be happy to assist you to the best of my ability. Thanks for using Fixya.


Kaufman605

Hitachi 55HDX99... | Answered on Dec 22, 2010


The spark you have noticed, is most likely to be a blown capacitor. Since you have sound, my money would be on the sustain board(X-sus or Y-sus or both). Unplug the set, take off the back cover and tell me what you find. Get me part number off the board so that I can confirm if whether its the sustain board.

Hitachi 55HDX99... | Answered on Nov 17, 2010


panel is bad not economical to repair. usually repair is 90% of what you paid for tv new.

Hitachi 55HDX99... | Answered on Jul 08, 2009


You are proberbly using RGB leads, wich is red green blue, each colour runs through each cable, have a look at your cables maybe one is loose, or damaged. check on both ends, but the cables MAY NOT be red green and blue, but the terminals that the plug into will be.

Hitachi 55HDX99... | Answered on Jul 06, 2009


You would need the remote control to select the MENU, then LANGUAGE.

Hitachi... | Answered on Nov 11, 2020


Use code search on your Sudden Link URC to find something that woks. If a search through all codes stored in the URC fails, try a different one.

Hitachi... | Answered on Oct 29, 2020


I am guessing it's an old(ish) TV. As a plasma the chances are that it is on it's way out.

Please Try new cables (HDMI etc)

Hitachi... | Answered on Sep 29, 2020


I don't know but it probably isn't much different to most other tv/remote combinations where commands are given by the remote and carried out by the brain in the tv.
Start by pressing the Menu button and the main menu should appear onscreen and from there use the up, down, left and right buttons to navigate the main menu and the select button to select sub-menus and items from the menu(s) until you reach the section on channel search, installation, etc.

Hitachi... | Answered on Sep 27, 2020

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