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| October 6, 2009, 3:36 pm |
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| Author |
kv36fs10 has picture but no whites in video. |
jschuholz
Premium Member
Rank: Sony Fan
Joined: Mar 16, 2007
Posts: 4
From: Cincinnati
 |  Posted: 2009-11-06 11:24
have a kv36fs10 that turns on with video and audio. the picture is shaded red for all whites. The standby timer is flashing 5 times. put a color bar on it and the white is pink. I have tried adjusting the RGB in service mode and still can't correct the problem. I have found another D board and installed it with the same problem. Is this a bad CRT ? Is there any way to test the CRT ? When checking the RGB video to CRT (on crt board C) , the Green video input seems high. On the schematic it show the waveform for all three colors and green is suppose to be a little lower than the blue and red. Thanks, John
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jehill
Premium Member
Rank: Sony Senior Advisor
Joined: Mar 13, 2003
Posts: 11045
From: Sewell, NJ
 |  Posted: 2009-11-08 00:25
Its unlikely that the problem is the CRT. Its more likely that the problem is with IC355 or the associated circuitry on the A board or IC1701 or the associated circuitry on the C board. The C board is located on the neck of the CRT. You really need an oscilloscope to determine the location of the problem by comparing R, G and B waveforms throughout the circuitry. Otherwise, you may replace an IC that isn't the problem. Often, such problems are the result of a bad capacitor instead of an IC.
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