Question about Toshiba 53H71 53 in. Rear Projection Television

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No brightness for Colorstream either connections

Hi ! Recently bought this TV used from a friend. Analog interfaces work good. When I try to use any one of the 2 Colorstream interfaces, the video is there, the colors seems to be there, but in 'darkness'. Like there is no backlighting to illuminate the colors. It is not a problem with a bad cable box or a bad DVD player, as the previous owner had the same problem. I am pretty knowledgeable with electronics and know how to solder electronics. Can anybody help at least narrow down what may be faulty ?

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Re: No brightness for Colorstream either connections

Sounds like a bad coupling capacitor in the luminance "y" signal processor circuit. Use a schematic of the tv and a osciloscope to find this problem.

Posted on Feb 02, 2007

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I am using ColorStream for my HD inputs, the top and bottom of every HD input is cropped. how do i adjust in colorstream mode?

There should be a wide/screen size/ format button on the TV remote that allows you to make those adjustments.

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If you go in to the tv menu, you should find picture adjustments. You can adjust the contrast and brightness to fit her preference.

Please give good ratings, it is important to us..

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No picture, no sound, but has power light...any suggestions? thx in advance

Do this first:

1: Check the antenna/cable connections.

2: Press the TV/VIDEO on the remote control or the TV to view a signal coming from another device connected to your TV, such as a VCR or
video disc player. You can select ANT 1,
VIDEO 1, VIDEO 2, VIDEO 3, ColorStream HD1, ColorStream HD2, or ANT 2 depending on which input jacks are used for connecting the devices.

*Be sure you have the right source to view video.

Try the above and post back before I can say there is a problem with your unit. If you have the user manual it's a good time to get it out. If you don't have it let me know and I will give you a link to obtain it. Good luck!!

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1 Answer

Mitsubishi WD-52631 shadows and blurs in dark lit movies

If you are getting the same problem with both TV monitors it could then be assumed it's an input problem to the TV monitor. If you are using a digital output from your receiver it could be the cabling. If you are using an analog output from your receiver it is probably coming from the receiver.
Digital video processing does have issues with darker scenes.
Can you try another video source seperate from the receiver like a DVD or better yet an analog VHS, if you still have one. Good luck and let me know.

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I have this same problem with my hitachi 55 inch ultravision luckily i have a warrenty still in effect so i called them and they said... Analog channels are not formatted for wide screen aspect (4, 6, and 10 ect.) this is a normal thing don't worry. It automatically returns to 4:3 because analog is full screen only, and it will return to 16:9 otherwise or whatever you have it set to. Nothing you can do but the good news is your TV isn't broken!

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Samsung PCL545R Color adjustment!

i'd recommend you return it to your friend..sounds like quite an issue with the innards.

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the best from what i seen is HDMI, DVI, or comp. in that order.
On my 82" HDTV i use the VGA plug connected to P4 3.5ghz.
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1 Answer

Component Video inputs do not work

I started back in the day of tubes. A family would have one set and it would be a 19" black and white. There are different resolutions now. The components probably do work, but, they don't pass the 480i signal. The satelite converter's analog signal needs to be set to 480p and the DVD needs to be set to progressive if it does have that setting. If the DVD is not a progressive scan DVD, then, the only inputs that it will show on is the analog signal. Some of the dish converters have a switch on the face for changing the resolution. If yours doesn't then put it in an analog source and go to the menu and change it there. Then move it to the component input. Hope this helps.

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