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Shadow on screen

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Old 04-28-12, 01:05 PM Thread Starter   #1
ihrsetrdr
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Shadow on screen


My 3~4 yr. old 42" Toshiba LCD has what can only be described as a dark "shadow" descending down from the top-middle of the screen. I thought that perhaps it was dust that was accumulating on the inside of the screen, through the vent slots along the top of the screen. I took a gamble and blew compressed air down through the vent slots for about 2 minutes. This procedure did not produce any noticeable change.

Any thoughts on the cause of the shadow, and any possible remedies?

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Old 04-28-12, 01:11 PM   #2
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hello. i live in abu dhabi and i work as a sales rep. for electronics. im living with people who works for samsung/sony and bunch of panels. 1 guy told me about the LAMP module. its 2-3inch fuse type that takes charge of the light. now if you will notice at the back of your panel theres a small slot there which is covered with something. i cant point out exactly where it is or if that model comes with a external LAMP or internal which in that case you need to give the service crew a call.

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Old 04-28-12, 02:26 PM Thread Starter   #3
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The screen appears sharp and bright, aside from the shadowy area, which is perhaps 3" wide and extends down to about halfway down the screen. I don't think that I can get a decent photo of the screen and the shadow, it would be nice as one picture is certainly worth 1000 words.

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Old 04-28-12, 02:32 PM   #4
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do you have a black light with you ? if you do can u switch it off and let it cool then check if theres any dead pixel or something on that part. it could be 2 or 3 reasons why that shadow is there. 1. lamp fuse faded already. 2. Dead pixel 3.Moist. if its in the center well its probably 1 or 3. dead pixel would only occur if its physically damaged or a power surge.

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Old 10-26-12, 11:13 PM Thread Starter   #5
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I finally got around to going about taking a picture of what is going on with the TV screen; as they say a picture is worth a thousand words- the shadow in question is to the left of the orangish bracket:





The shadow has gotten bigger since the OP, growing downwards a bit.

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Last edited by ihrsetrdr; 10-28-12 at 02:40 PM.
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Old 10-28-12, 02:40 PM Thread Starter   #6
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Well since the screen is practically & techically beyond repair, I'm opting to get a newer, bigger (but less expensive) replacement for the living room, and set them one up in out home 'gym'.

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Old 06-03-13, 05:47 PM Thread Starter   #7
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Update:

I did buy a 47" LCD to take the place of this TV, in the living room; this unit got placed in front of our elliptical.

Thing is- the shadow on the screen has disappeared completely. Since I go to the gym now, and rarely use the elliptical at home, this TV stays powered off for weeks at a time.

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