Question about Hitachi 55FX48B 55" Rear Projection Television

Jumpy Picture on Hitachi 55FX48B

I have a Hitachi 55FX48B that was purchased in early 1998. I am beginning to see the picture "jump" a little - Channel Five more than the others. It is almost like one would want to adjust the horizontal knob in the "old days." It does not happen all the time and seems to happen more when the TV is first turned on. I know the TV is older and wonder if this is a sign that is on its last leg or if there is a simple inexpensive remedy. Thanks!!!!

Charlie Pfeifer Feb 03, 2007

Thank You!! Great Solution Thank You!! Great Solution

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1,284 Answers

On older Hitachis the most common jumpy picture is loose connections on the vertical output IC. If you can tap on the main board and get it to act up then this is most likely the situation. I believe the location is IC401 and is located toward the front of the set on the signal panel. Not too tough to repair if thats all it is.

Posted on Jan 31, 2007

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6 / 1998 Hitachi floor model Model # 60EX38B Serial # V8F003468 Picture jumps up/down, very often, in last 2 weeks more trouble long time to come on. Now doesn't come on?

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Tv picture almost seems cloudy and no clear picture unless a face is a close up you cant really tell who they are

: SMEARED PICTURE
Cause: DEFECTIVE IX01,XX02,XX03 .............these are oscillator crystals that operate video ic's.......may all need replacing...good success, meder's tv service

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Black and white screen...

The color wheel can cause a black and white picture but not the jumpy or negative look.
Those symptoms are usually caused by the DMD assy which drives the color wheel and is somewhat expensive, most of the time you can purchase the whole Light Engine which includes the DMD assy for the same price.

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ck for dry solder joints if you take rear cover off and just lightly tap on convergence ic heat sink if the tv jumps then you have to remove the board and resolder the joints. also if you have a magnifying glass ck all solder joints on board when it is out

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Lamp flickering

Well jumping has nothing to do with lamp so called bulb.
You have what I would call a cold solder joint.
You're going to have to open the set and tap gently to see were it is comming from. If you know anything about soldering they you will know it is not that easy.

Once you think you have found the place were it seam's to be the place were it make's it jump more often, start again to make shure that's the spot and not the hole area.
Then remove the board and resolder,

Good luck
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Yes prob but some poeple cant se the def.

Jan 24, 2008 | Hitachi 55FX48B 55" Rear Projection...

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take off the speaker grill and take out any screws underneath the screen assembly and pull up and out. the bezel hangs with hooks and then screws in at the bottom

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Needs Convergence amps replaced. Also fuses around this board are out. There should be small pico-fuses open around this board(replace)

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1 Answer

Jumpy picture

If this set uses a picture tube then your problem may be in the vertical deflection circuit. Also an unstable power supply will cause this problem. Stargazer

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6 / 1998 Hitachi floor model Model # 60EX38B Serial # V8F003468 Picture jumps up/down, very often, in last 2 weeks more trouble long time to come on. Now doesn't come on?

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Jumpy Picture on Hitachi 55FX48B

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6 / 1998 Hitachi floor model Model # 60EX38B Serial # V8F003468 Picture jumps up/down, very often, in last 2 weeks more trouble long time to come on. Now doesn't come on?

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55FX48B 55" Rear Projection Television

6 / 1998 Hitachi floor model Model # 60EX38B Serial # V8F003468 Picture jumps up/down, very often, in last 2 weeks more trouble long time to come on. Now doesn't come on?

Open Questions:

hitachi projection tv troubleshooting

we have the digital converter box, but all the channels are still snowy? Can someone please tell me exactly how to plug hook this thing in and re-program the TV. Thanks a million.

Hitachi model 55FX48B power problems wont stay on

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Jumpy Picture on Hitachi 55FX48B

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Anonymous

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Related Questions:

6 / 1998 Hitachi floor model Model # 60EX38B Serial # V8F003468 Picture jumps up/down, very often, in last 2 weeks more trouble long time to come on. Now doesn't come on?

Tv picture almost seems cloudy and no clear picture unless a face is a close up you cant really tell who they are

Black and white screen...

Jumpy picture

Lamp flickering

Hitachi 55FX48B no pic, no sound.

Hitachi 55fx48b

How to remove Screen Assembly on Hitachi 55FX48B

Wont power on

Jumpy picture

Not finding what you are looking for?

55FX48B 55" Rear Projection Television

6 / 1998 Hitachi floor model Model # 60EX38B Serial # V8F003468 Picture jumps up/down, very often, in last 2 weeks more trouble long time to come on. Now doesn't come on?

Open Questions:

hitachi projection tv troubleshooting

we have the digital converter box, but all the channels are still snowy? Can someone please tell me exactly how to plug hook this thing in and re-program the TV. Thanks a million.

Hitachi model 55FX48B power problems wont stay on

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