Question about Hitachi 50UX57B 50" Rear Projection Television

1 Answer

Hitachi 50ux22b has dark screen and general CQ adjustment issues

I have been given A hitachi 50ux22b Rear Projection TV.
The screen is dark and other Quality issues make me feel it is in need of Adjustments.
Does anyone have any logic board schematics or technical data identifing the adjustment areas on the main board?
Thanks in advance
[email protected]

Posted by on

  • 2 more comments 
  • Anonymous Jan 08, 2008

    No the convergence is not off.

    The picture is dark.

  • Anonymous Jan 08, 2008

    I have adjusted

    Contrast to 5 clicks past half

    Brightness to 7 clicks past half

    All other settings at half

    All colors present.

    Picture is better.

    maybe thats all it needed...Thanks

  • Anonymous Mar 02, 2008

    TV now clicks twice on power button press but no power light or power.

    Problem was correctable by moving chasis slightly but no more.I suspect a cold solder joint..somewhere.

    Thanks for your previous suggestions. Screen Quality was good before power problem.

  • shelties52 Feb 15, 2009

    picture very dark cannnot lighten up through contrast or brightness adjustments



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 4,402 Answers

Is the convergence off?
bad convergence amp ic's

Posted on Jan 07, 2008

  • Cary Farah
    Cary Farah Jan 08, 2008

    how dark is it? are you getting all three colors red, green blue?
    how far is your brightness turned up? thinking your blue tube might be shoot.

  • Cary Farah
    Cary Farah Mar 03, 2008

    I would look for cold solder joint around the convergence ic and any heat sinked transistors.



1 Suggested Answer


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Has a black screen. The screen slowly went from dark to darker, then went to dark. I have a Hitachi CLU-572TSI projection tv

Not likely a do it yourself repair---loss of the filament voltage (6.3 volts) in the power supply of the set (some had issues where a resistor changes value).

May 05, 2012 | Hitachi 51G500 51" Rear Projection...

1 Answer

Broken screens on 53'' Hitachi rear-projection TV

I think it would likely work if you trimmed it evenly around the sides in order to maintain the central position. Focus may have to be adjusted but thats all.

Oct 25, 2009 | Hitachi 53UDX10B 53" Rear Projection...

1 Answer

Pictures very dark, Brightness all the way up. Contrast does not adjust

I have the same problem. I was able to temorarily fix the issue by taking the back cover off and blowing all of the dust out. But this only worked for two days. Now the problem is back. Did you fix the issue with your tv? Thanks.

May 28, 2009 | Hitachi 46F500 46" Rear Projection...

1 Answer

Hitachi rear projection tv 50UX22b

Symptom: DEAD
Cause: CHECK I402-IS05-I601

The full repair manual can be found HERE!

May 12, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Hitachi 50UX22B

was it blurry before you cleaned?
you should use lens cleaner and a soft cloth on the lens.

TV: Viewing Screen RPTV - damage and maintenance

Jan 16, 2008 | Hitachi 50UX57B 50" Rear Projection...

1 Answer

46" Rear Projection Hitachi - Green / Yellowish Screen

daveT29 - I had my brightness cranked, too. The picture went dark and off-color after moving the TV from one corner of the living room to another.

After waiting for the TV repairman for about 4 weeks, I "fixed" it myself. Take the front panel off (4 screws, then a black panel) and blow out all the dust. I was afraid to use a swiffer duster because of the static electricity, so i just used with my mouth blowing powers.

That's it. Seriously.

Jan 09, 2008 | Hitachi 46F500 46" Rear Projection...

1 Answer

Hitachi 57F500, Dark areas

Hitachi dark problems at

Dec 27, 2007 | Hitachi 57F500 57" Rear Projection...

3 Answers

53FDX01B Picture went black

is the screen lit up?
If so the video module is bad.
replace the surface mount caps app. 8 to 10
or replace module

Aug 20, 2007 | Hitachi 53FDX01B 53" Rear Projection...

Not finding what you are looking for?
Hitachi 50UX57B 50" Rear Projection Television Logo

Related Topics:

197 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76171 Answers

matt martin
matt martin

Level 3 Expert

1257 Answers

Todd Hill
Todd Hill

Level 2 Expert

433 Answers

Are you a Hitachi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides