DT40 wide help.

[jamesx1234]

My x galvo is a little messed up as seen in the pic. I'm 99 percent sure thats the problem is the x amp. Also with nothing hooked up except the power there's a very faint high pitch bussing sound coming from the galvo. When I touch the top of the scanner mirror gentle the buzzing sound goes away. This also happens whens everything is hooked up. Does anyone know if there's something I can adjust?

Thank you for any help you may have.

James

[dsli_jon]

Sounds-like the gain is too-high, and/or you've got a loose-ground... Can you post-up a pic of the ILDA-test pattern?

j

[Aage]

My x galvo is a little messed up as seen in the pic. I'm 99 percent sure thats the problem is the x amp. Also with nothing hooked up except the power there's a very faint high pitch bussing sound coming from the galvo. When I touch the top of the scanner mirror gentle the buzzing sound goes away. This also happens whens everything is hooked up. Does anyone know if there's something I can adjust?

Thank you for any help you may have.

James

I had the same problem with one of my DT 40 WIDE.
What you do to check if it is the amp or the galvo is connect the Y amp to the X galvo, if the sound is gone it is the amp if not it is the sensor on the galvo.
I got a new amp and the problem was solved.

Aage

[jamesx1234]

Thank you everyone. Aage I did switch the Y amp to the x galvo and the sound was gone. No worries I didn't have anything hooked up except the power. That was my last test I did after spending a couple hours trying to figue out what happen. Does anyone know which pot is the gain? I also can do a ILDA test pattern latter today. Some stupid person broked out my wifes car window last night so I have to fix that first. At least there was nothing in the car.

[Aage]

.

[jamesx1234]

All fix. It was the frequency damping pot.

[michelrietveld]

just a remark, while the driver is switched on and even in idle mode it is in my opinion not a good idea to touch the mirrors, i broke one of doing that.
Just my experience.

[jamesx1234]

just a remark, while the driver is switched on and even in idle mode it is in my opinion not a good idea to touch the mirrors, i broke one of doing that.
Just my experience.

I love advice. I have wasted so much money over the last three years on mistakes I have made. At least the mistakes are alot less now. Thank you.

[badger1666]

Guys don't ever swap amps and galvos around, each amp is tuned to its respective galvo
Swapping them there is a good chance you can damage a galvo.
Take it from me I did it once on my first scan set, the galvo had a screaming fit and died as it had gone into self osilation, they mark each amp x and y for a good reason

[Bradfo69]

Guys don't ever swap amps and galvos around, each amp is tuned to its respective galvo
Swapping them there is a good chance you can damage a galvo.
Take it from me I did it once on my first scan set, the galvo had a screaming fit and died as it had gone into self osilation, they mark each amp x and y for a good reason

Yet, for testing purposes, that's exactly what I've been told to do to determine if a galvo motor is bad.... but, I can see that you might not want to leave it that way for any length of time.