I have an RT-3620. Can it be recalibrated? Can I do it myself?

Check this video and related videos
https://www.youtube.com/watch?v=pZD9Ef_Z0-8

Surface RT repair attempt teardown

Contact a laser service center. I doubt anyone will be willing to work on it. It would be a lot of research for a 2.00 part. Usually you will be unable to find parts for big box store lasers. A laser dealer may have a broken one laying around that he can pull a used part from. Just a a precaution I'd recommend never purchasing a laser from a retail store such a sears or home depot. If possible go with a Leica Geo-systems unit. Topcon, spectra physics, and trimble are also good lasers that have all parts readily available. In the service industry we call cst, bosch, robotoolz, "throw away lasers" because if anything at all goes wrong you throw it away. If i recall properly I have searched for parts for Robotoolz and contacted the manufacturer in the past. I was told that they are not supported and parts are not available. Check around and see if you can find a service center with a used part. Google search (Leica Geosystems, Topcon, Trimble Laser dealer).

I need instrion on threadding my 3620 Necchi at the very top?

Im pretty sure you can. I cant say for sure though. You can on my park avenue. Youtube can sometimes be a good source for this.

try abakhan fabrics or manufacturer website or google "buy necchi 3620 foot"

I also own 2 necchi sewing machines, I used to have a 3620 myself,,


in my operation manual it has a picture of threading the bobbin case,, if you would like a picture send me a comment with your email address

Vivitar Vivicam 3620 User Manual Attaching The Strap Installing The...

Above is the manual and on page 20 is the batteries

Check Acer's website for a BIOS update. I've seen a LOT of laptop's screen issues been related to the power saving settings in the BIOS. Sometimes screens going black very fast and not working properly can be caused by that.

The Power Inverter could also be the problem which you wouldn't be able to repair yourself. If you purchased it at Best Buy you can take it to them and they could get that fixed for you (at a charge if there is no warranty with that).

Call a technician to recalibrate your color guns. They usually need to be recalibrated yearly, lately. Many times the cost of getting it service exceeds the value of replacing it with a new one.