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Toshiba 37AV502U 37 in. LCD HDTV - Page 9 Questions & Answers
Why does my Toshiba tv screen go from dark to light?
The TV's main culprits to be causing this problem are "dynamic contrast" which maybe darkening the backl light in dark scenes an example a night time or a dark scene in a movie. To make the blacks be deeper (as LCD/LED TV are rubbish at blacks) or brighten it on bright scenes to make the light be lighter and once again to make the blacks be deeper so the images pop out. Also "eco lighting" this will dim or brighten the image based on the amount of light in a room in order to be saving energy. Ether way the easy fix is to turn both of these features off. You will get rid of the problem and enjoy more subtler shades of colour that would otherwise be bleached (brightend) or crushed(darkend) out..
12/28/2019 10:13:52 PM •
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1,448 views • 0 helpful votes
Toshiba B-EV4D firmware
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1/14/2020 7:06:05 AM •
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I have a Toshiba Regza when I turn it on, the sound will come on but the picture blanks out. It takes 8-10 try's until I get both picture and sound
Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
2/1/2020 12:21:24 AM •
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How do I troubleshoot my 1993 toshiba tv wont power pn
When it does not power up, just start checking the fuse. When you have a multimeter, you can check if the power still comes in the tv. Also go on to check if the on / of switch does work correct. But if you don't have electronic skills at all, please ask a technician, because inside the tv you can find lots of places where the high voltages can harm or even can kill you.
1/12/2020 7:38:43 PM •
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71 views • 0 helpful votes
Toshiba rdxv60kb shuts down after 10 seconds playing vhs tape
There are a couple of things that could cause this. One is a bad diode in the power supply and the other is a bad sensor in the playback unit near the head. Neither one is job for anyone that has no experience in electronic repairs.
11/22/2019 3:13:29 PM •
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204 views • 0 helpful votes
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