Help with pin outs of various circuit boards & drivers

[Laserhobbit]

Also just realised this may have been posted in the wrong place, sorry, a typical newbie error. If so please let me know and how to repost in the right place. Sorry if I have made an error!


Hi,

I have been working with lasers on and off for over 30 years, but mostly off for the last 10. so I thought it was high time to start playing around with a few of the bits and pieces I had lying around. To fill the gaps in my army of optics etc I bought a couple of lots on eBay of some scanner and drivers boards, haven't we all! But the problem is the guy I bought these from has no technical details of them. So can anyone really help me out. The boards come from the following companies:

1) Cambridge Technology
2) Chameleon Technology
3) GM Technology
4) Laser Electronics Ltd
5)Laser Grafix S+H Ltd

I have included some pictures below, sorry about the lousy quality, if you need any better ones I can see what I can do



This, I think, is a G120D scan amp, but am really quite unsure it may be to drive a GM20. It is labelled as being made by Laser Grafix, with the actual assembly being done by Prosol electronics



This one is marked as being made by Chameleon Technology and I think it is a scan amp for CT6800 or similar. But it does have DMX beam Card also written on the board. As you can see from the photograph most of the board is unpopulated and it has very few components in place.



This, I believe is a GM20 actuator driver board. In fact this and the 1st card come in an instrument case together to drive a number of GM20s and a couple of G120Ds. Although it does not show in the picture it has printed very faintly on the boards "Actuator Driver V2". again it it marked as being made by Laser Grafix



Again another board from Laser Electronics Ltd, it is marked as being "CT Drive Card Issue1



This card seems to be a dual galvo driver for CT6800 series galvos. It is marked as being made by GM Technology Lighting and just says "High speed galvo" on it. It also has 2 additional connectors, one marked "servo", 2 pins and the other "shutter" again 2 pins



The next one is a Cambridge Technology driver for CT6800 and is marked CB6580 Rev 0, which I hope may be quite straightforward.



The final board is a power supply board for 24v actuators and galvos, I am told it can also use a 5v TTL signal and drive 12v actuators or solenoids, but have no evidence of this. Again it is made by Chameleon Technology and marked as a "Galvo Power supply".

Sorry for such a long first post, but I am eager to see if these plus other bits I do have info on can help me build my first projector in over 15 years. Any help is really appreciated!!

thanks

Steve

Also just realised this may have been posted in the wrong place, sorry, a typical newbie error. If so please let me know and how to repost in the right place. Sorry if I have made an error!

[mixedgas]

I have the 6850 data posted here, hosted curtesy of a friend.

http://www.skywise711.com/lasers/scanner/scanner.html

Your actuator driver card is a clone of a Precision Projection Gm20 driver, I have the schematics for the P.P. version.
I'm not going to post them here for various reasons, mainly their lawyers, so send me a PM.


Your two other Cambridge amps are the 6850 redesigned to other board layouts and a 675XX clone.
You can tell its a 675xx clone when it uses a LM3886 as the driver.


Data for the 675xx clone's schematics but not pinouts is here:

http://rtime.felk.cvut.cz/~sojka/laser/678xx_board.pdf

You will have to trace out the clones pinuts vs the Cambridge schematics.

Steve