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I want fix circuit board of my bernina 1030

I realize that the problem is in the circuit board of the machine. The foot control doesn´t work because power don´t come on the motor enough and the foot control t's ok

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  • 166 Answers

I have found that the bernina machines in this general product range (i.e. with the slide-in processor boards) do tend to suffer from dry-joints, randomly throughout the boards. If you take the double-stack boards out after removing the handwheel-end cover, separate the two boards, carefully and dont loose the plastic spacers on the securing screws. Best thiong is just to go through the board carefully with a magnifying glass, re-soldering any joints that show signs of having 'frozen' when manufactured. Also, carefully clean the two connectors that provide interconnection between the control board and main processor board with a suitable contact cleaner. I also make a point of removing any surplus flux that may still be on the board from manufacture, using the above cleaner. Most symptoms tend to be when the machine randomly swaps between stitches. The rotary controls are special and not commercially available, so if they get 'scratchy', unsolder them first and give them a good spray with contact cleaner to remove any surface contamination on the potentiometer surface. Icant help with a circuit diagram. By the way, if the motor isn't running properly, the problem is on the power supply 'L'-print on the back of the machine - not the main control board. There is an adjuster on the PSU that is used to set the motor speed. Make a note of its position and just try rotating it back-and-forth a few times, again to clean the track, then return it to approx where it was - this might cure the problem. Again, I dont have a circuit diagram of the 'L'-print.

Posted on Feb 14, 2012

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Posted on Jan 02, 2017

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SOURCE: When i switch on my Bernina Artista 180 it blows

4 amp??? More likely 1.6 slow blow. The problem solution is changing the power supply, called a Classic L-print. Typical on the 130/180 Bernina.

Posted on Sep 06, 2009

Zenqi
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SOURCE: I have a Bernina Sewing Machine with a Control Board that smoked

Bernina does not sell individual components for PCBs, rather they have an exchange program for the entire board. But you have nothing to lose and much money to save if you can obtain the parts and replace them yourself. You should be able to get the caps and resistors from any electronics supply.

Posted on Oct 01, 2009

Testimonial: "Terrific- that sorted that out as I could not easily find Bernina Service. I will go and buy the bits."

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SOURCE: bernina artista 180 keeps warning to check top thread

Refer to your manual for maintenance and clean the machine as indicated. A sensor may be blocked by lint.

If this continues, the machine will need to be serviced by an authorized Bernina repair tech.

Posted on Mar 25, 2010

  • 22 Answers

SOURCE: Foot pedal not working on bernina 1030 but there

The problem with you bernina is coming from the circuit board located on the back of the machine, there ar e a couple of fuses you might want to replace, if you change out the fuses and still no power the board will need to rebuilt aprox cost$150.00

Posted on May 03, 2010

  • 1 Answer

SOURCE: I have a Bernina 180

Unfortunately no, I think that the 185 and beyond use the same emb module. The 180 if I remember correctly, has the memory and card reader in the module itself and may have a different plug. I do know for sure that the 180 hoops will definitely not fit on the newer modules. Sorry to disapoint, Allen

Posted on Feb 03, 2011

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1 Answer

Bernina 1230 nothing happens when pedal is depressed.


Hmm, wonder if it could be a board or ????? You've already tested the foot control and it seems to be okay, so the problem would appear to be in the machine itself. Does the light work? That may be another clue.

May be time for a service call.

====
FWIW--Here are a couple of posts on a Bernina group:
"
  • Nov 17, 2015
My Bernina 1230 has lost its electric connection. My mechanic says that I need a new power board for $270, $30 for shipping from Bernina, $100 for installation, and $70 for the initial service--a grand total of $470.

---
I bought a 1230 this summer and finally dropped it off for service with
a very reliable OSMG though not a Bernina tech.

He had the machine all tuned up and ready to go, decided to try it one more time, and the machine didn't move. Tried another foot control, and still nothing.

The theory is the internal circuit board is the problem.

I know that some of you have had local electronics guys fix the circuit board problem, instead of shipping it to Bernina headquarters."

....

...

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1 Answer

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This is most likely a fault in the foot control. Normally supplied with this machine is a Type 10 and this can be fixed quite easily but probably not by the machine's owner unless you have some electrical and mechanical experience.

If you have knowledge of and access to a multimeter, you can test it. What working properly, you will find the following:
Pedal released: resistance is infinite (anything around 4k Ohms or less and the machine will run).
Heel pressed: resistance is about 10k Ohms.
Toe steadily pressed from nothing to all the way down: resistance is infinite then after a small depression, jumps to about 4k Ohms steadily decreasing to zero as the pedal reaches all the way down.

Your problem, being at the point where the pedal isn't pressed suggests that there's some contamination in the pedal. It's also possible that you have a type 365 pedal (as used on the 930) and this is more likely to give this kind of trouble due to the use of carbon brushes in this foot pedal.

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