Question about Hitachi 53SBX59B 53" Rear Projection Television

1 Answer

Running out of Brightness

Picture is dark and brightness is at 100%. Also seems to be too much blue. Just started past day or two. Set was purchased in 2000.

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  • Anonymous Apr 15, 2008

    i have the same problem where the picture is really dull and dark, anyone no how to manually adjust this tv without useing magic focus button

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  • 4,402 Answers

Use the advanced options page and reset the factor blue and red convergence defaults then do re apply the auto color defaults color at first it seemed very red (which is good because red was the missing factor in the green picture) but after reseting all the color and tints to the normal ranges I then reset the color auto correct again and all seems fine.

Posted on Dec 05, 2007

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Posted on Jan 02, 2017

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1 Answer

Monitor is set to 100%--still too dull


If the picture is dark, on screen brightness will not overcome this.

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Since you do not supply information (type, brand, model, age)
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Why do i have to have the brightness set at 100% or you cant see the picture


Hello
If baklight CCFL tubes become weak, the brightness will be very weak. Now you can see the picture with least brighness. So it is sure that, the backlight inverter board is working well. Just check the CCFL lamps. For a 37 inch LCD tv may have atleast 14 CCFL lamps. When replacing, do replace all at one time. OK.

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Contrast really dark but seems to improve after the tv has been on several hours


Hi:
You may have a problem with the inverters in the unit, they are responsible for lighting up the back panel. Check or have checked the power supply voltage to the inverters, should be around 18-24 volts DC. Also leaky capacitors on the power supply will cause this issue as well as leaky or puffy capacitors on the inverter.

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How do I fix contrast and brightness on 36" toshiba tv?


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1 Answer

The Contrast and Brightness on tv appears to be dark.


If this is a CRT-based TV and it's been played most of the time, you may have a bad picture tube, especially if strong red colors bleed to the right. CRT's dim with use, unlike LCD or plasma. But it could also be trouble in the video circuits - none of this falls into the DIY category, unfortunately. High voltage involved, unless you're comfortable around it and want to try turning up the screen controls inside the TV. If you do, let me know - but "no response at all" from the external adjustments points to a more serious problem.

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Screen Brightness


Your ballast may not be up to 100% of its rated capabilities, thats often the cause when the brightness level gets to unwatchable levels. You may need to troubleshoot the ballast voltages a defective ballast can usually cause a lamp to loose about 60 % of its brightness levels. The other possibility could be the DLP mirrors need polishing but that is something better left to a repair shop as the DLP mirrors are sensitive

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1 Answer

Darks too dark


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1 Answer

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Has it been dropped? At first it sounded like it may be have been an intermittent short if the CRT guns, but it's hard to say. Since it doesn't seem to be the cable, it sounds like this one needs component-level troubleshooting.

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