Originally Posted by sledhead1
This must not be the pixel. Its always stuck not just during the masks. Even in normal viewing. I didnt see any other pixels while going through the vol offset flowchart. Nothing effects it and i dont see anything else in any of the masks other than the green one. when i fisrt go to it there all sorts of ir that slowly go away. is that what im looking for?
Sounds like you have a stuck pixel. I also have a intermittent stuck pixel on my 101fd that I ignore when going through the flowcharts. I've never performed the procedure on a 6020 so I wouldn't know what to look for, but the stuck pixel(s) showed up on the green mask (raster mask 19) in the vol offset flowchart on my 101fd. What you could do is, once you have set vol offset to the value that the vol offset flowchart tells you to, reduce vol sus a few click until you see misfires (they look like flashing or solid stuck pixels), then increase vol sus until they disappear.
Remember to set your voltages to their factory default values and perform this procedure in a darkened room, as the misfires are difficult to spot. You literally have to press your nose on the screen to see them. When putting up masks, make sure you use 60VS.
I went over the flowcharts in the service manual and have created a step by step for you with what I THINK you should see/do.
1. Display raster mask 12.
2. Set VOL OFFSET to tentative setting value minus 34 (68-34=34).
3. You should not see any misfires.
4. Display raster mask 10.
5. You should not see any misfires.
6. Display raster mask 2.
7. Set VOL OFFSET to tentative setting value plus 67 (68+67=135).
8. You might see misfires. If you do, proceed to Recovery Flowchart 1-3 and increase VOL SUS when it instructs you to reduce VOL OFFSET to remove misfires (do NOT reduce VOL OFFSET). As mentioned above, you could try reducing VOL SUS a bit to see if the misfires become more obvious.
9. Display raster mask 3.
10. This is where you should see misfires. If you do, proceed to Recovery Flowchart 1-4 and increase VOL SUS when it instructs you to reduce VOL OFFSET to remove misfires (do NOT reduce VOL OFFSET). As mentioned above, you could try reducing VOL SUS a bit to see if the misfires become more obvious.
11. Set VOL OFFSET back to 68.
12. Perform the VOL YKNOFSA D flowchart as per the instructions in the service manual to find the optimal VOL YKNOFSA D value. You should see the misfires when reducing VOL YKNOFSA D to 96 on raster mask 19, 18 or 23.