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Re: How do I fix the picture
There are two common problems on this model that have very simiar symptoms. The first problem is known as Convergenvce problem. This is when the colors are not aligned, look 3D, etc. When this occurs the colors wont jump around or look jagged...instead they just look overlapped, warped, 3d, etc...
The second issue which is the one I believe your set has is known as a hyberboard failure....When this happens the tv video will move around...look jagged or scrambled, etc....also...sometimes the TV will shut down....
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We are assuming that the zigzag width dial is at the widest position but the needle will not move laterally for zigzag... The following logic should be applied for Bernina machines 530, 730, 830, 930 machines with a guided motion zigzag cam.
1. The switching pawl (lever on the top cover that switches from zigzag to cam patterns) may be engaged in the cam or automatic pattern side. Check that first.
For zigzag application, the lever must be engaged in the zigzag side (lever pulled back toward the operator). The stitch width dial is then used to provide your choice of width.
2. It is common, due to oil varnishes, that the switching pawl that is actuated by this lever is stuck between the zigzag and the automatic position, thus preventing the transmission of power to either the zigzag cam or the automatic pattern cams and to the needle.
The best way to detect this is to remove the top cover. You can then switch the lever back and forth to observe if the switching pawl engages firmly into either of the receiving forks. If the switching pawl is sticking, a few drops of certain solvents are applied by a technician on the switching pawl support. The switch lever can be rapidly switched back and forth until you see the switching pawl engage into the receiving forks and you hear a crisp clicking during each engagement. This repair can be permanent or it may create only a temporary fix due to the amount of oil varnishes on the parts.
If the machine is heavily varnished, it suggested that the parts be disassembled and cleaned for flawless performance. If the machine had been sprayed with WD-40, petroleum based solvents like mineral spirits will not break down these varnishes.
A caution regarding solvents...DO NOT USE (WD-40) as your solvent. WD-40 is a marvelous product for its intended application as a water displacement device. It is not to be used for lubricating a sewing machine. Note: "Bernina Technical Information bulletin #1" issued in 1982, forbade the use of such spray lubricants and solvents. SewTechnical Home
1. The needle is not inserted correctly
Remove needle & reinsert needle( flat side towards the back of machine)
2. The needle is damaged
replace with new needle
3. The wrong size needle is being used
Choose a needle to suit the thread & fabric
4. The foot not attached correctly
Check & attach correctly
It is very possible that the timing is off, which often occurs with broken needles. A common symptom is that the needle will not pick up the bobbin thread. Missed stitches aren't necessarily timing related--be sure to install brand needles often and use the correct needle for the fabric & thread you are using. Using the wrong needle will often cause skipped stitches.
I have a Samsung UN60J630xxx that had juddering in movie scenes.
Use the Menu to go to Picture - Picture Options - Motion Plus.
Set Motion Plus to Custom and Judder Reduction to 3.
This fixed the juddering.
it's possible that the cams that do the zigzag stitch could be worn or have gotten damaged
it would be a good idea to have it serviced
I would suggest to look in the yellow pages & see what sewing machine repair shop are in your area.
and if you do get it serviced, when you first get it home, sew on it & make sure it works correctly, they normally have a 15 to 30 day time limit for you to check the machine out & making sure it works ok, & make sure that you don't just pay for a cleaning..
let me ask this,,
have you tried a new needle?
is the needle inserted correctly--if there is a flat side to the needle it should be to the back of the machine & pushed up inside the needle holder as far as it will go
is it the right size needle for the fabric & thread?
if you check all these things & none of these things help then it's possible the cams or gears that do the zigzag stitch could be worn some.which means it needs to be serviced
Dropped stitches troubleshooting:
1>change to a new proper needle (proper needle means quilting needles for free motion, stretch needle for knits, leather needle for leather, microtex needle for micro fabrics.....etc.) of proper size. Most sewers never need a needle smaller then an 80/12 when sewing. Smaller needles bend more easily causing more problems.
2>If a new needle doesn’t fix the problem, remove parts from bobbin case area (as best as easily allowable) and clean out all the lint thoroughly, and oil with 2-3 drops of oil where friction occurs (turn hand wheel and look for rubbing)
3>If still skipping, try a different spool of thread (Yes, thread can caused skipped stitches, not common but I see it).
4>If you haven’t solved it yet, sounds like you could need to make a lower level adjustment like hook timing.
To time the machine, you want the tip of the hook to pass just over the top of the eye of the needle when the needle is in the left most or right most position depending on which side the eye of the needle will be higher
Hello luckyone1, According to your name you get one lucky fix..not two
OK, OK ...That was funny What do you meant by zigzag line? Do they look like what we would call herring bone. lines going sideways? Please let me know. If this is the case, I have never been able to solve that problem. I am very close with the tech over there at Samsung. We spent hours on this problem. We changed Complete main board. We also changed Power supply. The problem maybe coming off the Yoke or a somewhat defective picture tube.
Please post reply if someone did correct such problem