GO7 Question

jbk

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I am using a GO7 with a 60n1 board. It has the typical curl to the left side. The monitor has been capped, new flyback, B+ adjusted to 119.8vdc (as close as I could get it), degaused and a 22uf@25V cap used in the sync upgrade. Bob Roberts upgrade directions says to adjust to a center point and adjust the H hold to remove the curl. No matter what I do the curl in the picture is still there. I adjust the H freq to no avail, the curl will not go away. Any ideas from the GO7 pros out there.
 
Well, the sync mod cap is normally a 10uf 50v cap, and I don't know if what you have there will make a difference.

Is this one of the newer 60-in-1's, or one of the older ones? The older ones typically had a curl on G07's that was almost impossible to get out completely, but the newer ones seem to square up pretty good...
 
The cap value came from Bob's cap kit instructions. I'll change it and see if it helps. The board is one of the newer 60n1s.
 
Make sure the resistors that handle the negative sync are correct. IIRC they're R303, R306, R314 and R317. They're supposed to be 380 ohms (IIRC), and they put in 4.7K ohms @ the factory.
 
Make sure the resistors that handle the negative sync are correct. IIRC they're R303, R306, R314 and R317. They're supposed to be 390 ohms, and they put in 4.7K ohms in some models @ the factory.

corrected...
 
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