20 Most Recent Hitachi 50GX49B 50" Rear Projection Television Questions & Answers

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.

Hitachi 50GX49B... • Answered on Mar 03, 2017

It is a fuse that does not look like one, in the HItachi sets they are usaully orange or green and look like a resistor.l seem to remember the designation is something like el95 on the board it self.Google "pico fuse photo"

Hitachi 50GX49B... • Answered on Dec 23, 2012

change the hd output to 720p if that doesnt workt hen 480p othwerise your tv cant do it. if you are using hdmi try using component cables. also if you are using rca cables red white and yellow that is why

please let me know

Hitachi 50GX49B... • Answered on Mar 17, 2011

You need to set the antenna input back to ANT A (1), you are ANT B (2) right now that why you are not seeing any signals.
Use the INPUT button on the remote to scroll through until you see ANT A which is the one your kid use for the cable connection,
You should download this user manual:

Let me know if it works.

Hitachi 50GX49B... • Answered on Dec 31, 2010

if you bang on the TV or try kicking the very center bottom of the tv and it works or flickers you got a loose solder connection somewhere on the board. I got the same problem. When it warms up the solder, around what ever pin it might be, makes better contact. I am looking into the problem and will post my finding when i figure it out.

Hitachi 50GX49B... • Answered on Sep 25, 2010

This is a rear projection TV with three picture tubes-if you have listed the correct model number.

Most likely what you have is a broken or bad solder connections on one of the circuit boards.

Most of these sets use LEAD FREE solder--good for the environment but it does not take well or last as well as the old solder.76d4159.jpgThis is your set?

First, you have to let me know if you have some skill at soldering etc--clearly reading your question I do not know.

If you hit it and it returns to operation the bad connections if you can get at them should be easy to find and solder.

Let me know how much skill you have and I will try to help you--


Hitachi 50GX49B... • Answered on Jan 14, 2010

i need the same thing!!!! can anyone tell me the answer?????

Hitachi 50GX49B... • Answered on Oct 30, 2009

Removing the screen is your best bet -
1 Remove speaker grill
2 remove 4 screws holding the screen frame
3 then lossen the bottom corners where the screen meets the frame by pulling outward (some force is required) and work your way upwards towards the top (two people may be required for support)
4 tilt the loosened frame(20-30degrees) from the bottom up and the top shoul lift and seperate from the frame.

After the screen is of you'll be able to tell what to remove next.
Good Luck!

Hitachi 50GX49B... • Answered on Sep 21, 2009

The Blue CRT Driver Board gould be the problem.

Hitachi 50GX49B... • Answered on Jul 07, 2009

Obviously the tv took the hit but the dvd player was spared. check and replace the fuse in the tv if it's open. If this does not fix it then get an est and file a claim with you homeowners insurance.

Hitachi 50GX49B... • Answered on Apr 26, 2009

Your TV most likely has one or more possible problems.

Problem #1: Convergence Chip Failure ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move them up, down, left, and right.

If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem.

2c07611.pngSolution #1

You need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kits for most models. If you don't see a kit for your set send them a quick note and they will put one together for you. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, etc.

Problem #2 CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

TV set after fluid change


2c07611.pngSolution #2

What you will need to do is replace the coolant and clean the crt. You can get a repair kit from www.TvRepairKits.com that includes replacement coolant, photos. instructions, etc.

Hitachi 50GX49B... • Answered on Apr 24, 2009

hello it sound like theres may be a dry joint probably in the power supply you would need a strong light and a magnifying glass and soldering iron and some solder


Hitachi 50GX49B... • Answered on Apr 08, 2009

Common failure is C702 Capacitor near flyback== 102K/2KV shorted==replace w/102K/3KV generic or Sony part number 1-161-754-00.Also,check E994 open 2 amp pico fuse.

Hitachi 50GX49B... • Answered on Feb 21, 2009

1)Pull chassis-solder any/all suspect bad solder connects,esp.regulator device pins.Use magnifier take your time.Let me know if you need further help.

Hitachi 50GX49B... • Answered on Dec 21, 2007

Most likely have a regulator problem. Remove rear cover, look down on the main chassis, turn tv on watch the board to have some colored led's lit, usually a red one and couple of green. If the red is out, its your regulator, if a green one other problems off the circuit with green led are causing the tv not to power up.

Hitachi 50GX49B... • Answered on Aug 01, 2007

If you wish to get some details; check the site linked here. Pull up older posts. https://electronicshelponline.blogspot.com/ https://elektrotricks.blogspot.com/ faults & possible causes to LCD & Plasma screen are given with illustrations. You can get an idea about the fault to an extent. Search the site by type in the brand name of your set, in its search bar at the right side column, and press enter.

Hitachi... • Answered on Mar 15, 2021

Try resetting the power by switching off the TV and then switch off the TV's power outlet and disconnect the TV's power cable from the outlet. Press and hold the TV's Power button for about 30 seconds to drain any residual power from the TV and then release the button. Turn on the TV in the normal manner and see if it turns on then afterwards.

Hitachi... • Answered on Feb 03, 2021

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