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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Other Mitsubishi VS-4507R question
How many crosshair adjustments are there.
When I push the test button on the TV I get a red vertical and horizontal and a blue vertical and horizontal. Is there supposed to be a set in green also? Thanks Peter |
#2
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Something's wrong with the green picture tube, it's a bias problem that can be adjusted," it's a control on the crt board that's connected to the back of the green tube" or a bad tube or some other problem where the green color is not getting through. "peter" wrote in message ... How many crosshair adjustments are there. When I push the test button on the TV I get a red vertical and horizontal and a blue vertical and horizontal. Is there supposed to be a set in green also? Thanks Peter |
#3
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I think the green is getting through because the colors on the screen
are not bad, there is just no green adjustment on the crosshair screen. Also the shadow or halo that dark objects have in front of a light background is worse when the TV is just turned on, after about half an hour run time it is better still there but instead of three to four shadows/halos there is only one visible. |
#4
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Try turning down the brightness or contrast. "peter" wrote in message ... I think the green is getting through because the colors on the screen are not bad, there is just no green adjustment on the crosshair screen. Also the shadow or halo that dark objects have in front of a light background is worse when the TV is just turned on, after about half an hour run time it is better still there but instead of three to four shadows/halos there is only one visible. |
#5
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There is no green adjustment. Green geometry is adjusted using the on board
control pots for heighth, width, etc, and then red and blue are adjusted to match. A crosshatch generator is required to properly adjust, but an onscreen guide (such as used by cable co's, sat co's, etc) can be used in a pinch. |
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