I had this *exact* same problem and it ended up that when I used a
different deflection coil, that I was having a single color 'scaling'
shift. My purity was good but one color, green was just not deflecting
like the the others, it seemed to just 'advance' the others as Y values
got farther along the Y axis. When I put the original deflection coil
back on, everything went right into place.
Where did you get the tube? If you just grabbed one from a 25" TV, then
you might have problems changing to a different deflection coil. What is
the picture tube number? Same as stock or just 'similar'?
On 3/13/2011 2:31 PM, Andre Huijts wrote:
> That looks EXAXTLY like the problem I have with a friend's Amplifone set-up with a LOW-res tube....I actually blamed the Low-res tube for it....
>
> Just like you, the green is the color to be ABOVE the blue and red on the top of the screen, and BELOW on the bottom side....
>
> Drove me nuts and I never solved it....
>
> Could the convergence magnets be loosing their magnetism a bit ?
>
> Andre (Is this one also posted on the KLOV forum Scott ?
>
>
>
> Op 13 mrt 2011, om 16:45 heeft Scott McGovern het volgende geschreven:
>
>> I've filtered through many previous posts on here, but I am hoping that my questions can elicit some more tutorial like suggestions to fix my convergence issue. I am putting together a 25" "amplifone" vector monitor to go into my Star Wars cockpit de-conversion. Like others have done previously, I am using a 100deg 25" medium resolution tube, wells gardner 6100 yoke, and amplifone deflection/high voltage pcbs. Here is a zoomed out pic of what I've been able to accomplish (all pic links are 800px wide):
>>
>> https://lh5.googleusercontent.com/_xUpoDi3iW5A/TXzhVLoALpI/AAAAAAAAAXM/ZZaFJs4CH7s/s800/IMG_5659.JPG
>>
>> As you can see all three colors are pretty well converged left/right/up/down in the center (although you can see the green starting to diverge towards the bottom in this center close up pic):
>>
>> https://lh4.googleusercontent.com/_xUpoDi3iW5A/TXzhXESrx0I/AAAAAAAAAXU/8v-Bl80793k/s800/IMG_5661.JPG
>>
>> I have the red/blue pretty well converged everywhere. However, I cannot get the green to lay on top of the red/blue near the top and bottom edges. In addition to a small vertical offset, the green does not bow inward to the screen's center as much as the red/blue does:
>>
>> https://lh4.googleusercontent.com/_xUpoDi3iW5A/TXzhVEAv4JI/AAAAAAAAAXI/vDQHCusMe-g/s800/IMG_5662.JPG
>>
>> The sides are fairly well converged, though (certainly better than the top/bottom):
>>
>> https://lh4.googleusercontent.com/_xUpoDi3iW5A/TXzhVEpTPdI/AAAAAAAAAXE/RtI1qd-7ylk/s800/IMG_5666.JPG
>>
>> OK. So here are the questions. What can I do to get the green to lay on top of the red/blue on the top and bottom edges? I cannot seem to get there by adjusting the convergence rings. And, further yoke movement left/right/up/down from where I am seems to undo the work to get the red/blue to pretty much align well everywhere. I've also tried moving the rings forward/backward relative to the yoke and re-adjusting them, but I can't get that to do the trick either.
>>
>> At this point, am I just down to working with the strips and chevron magnets (I have a good supply of both)? If so, are there any tutorials or step-by-step instructions for *how* to use these to achieve convergence on the top and bottom? So far, my experiments where I am just moving them around never gets all three colors to align (most of the time it looks like I am undoing what I have). And, both the strips and chevron magnets seem to have more impact on the corners than the center of the edges, which is where my biggest convergence issue is.
>>
>> Any help or suggestings are greatly appreciated! I want to get this monitor converged and placed back into the cabinet so I can play Star Wars again.
>>
>> Thanks in advance
>>
>> Scott
>>
>>
>>
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> André Huijts
> andre.huijts@upcmail.nl
>
>
>
>
>
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Received on Sun Mar 13 20:41:31 2011
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