Full Version: uls rotary attach down

From: Rob (AWARDZZ) [#1]
 10 Feb 2007
To: ALL

Good Morning from the frozen shores of Lake Erie;

I have a ULS-25 purchased in 1994, the laser is not the problem, the rotary attachment is.... here's what happened. This attachment has the ribbon wire ( flat with a bunch of small wires approx. 10-12 different colors) coming out of the attachment, then it plugs up underneath the control panel. Don't ask how, but they got crimped approx. 1 1/2" from the attachment ,very badly to the point where I have severed them, o now the rotary just spins at its own leisure upon start up..my question... there is enuff slack to still make the connection to the laser,,,can they be spliced,, or somehow soldered?? or do I have to buy a new wiring kit or dare I say a new rotary piece of equipment.

Murphys rule: 36 glasses to be done before Vegas aaahhh

Thanks
Rob

EDITED: 10 Feb 2007 by DGL


From: UncleSteve [#2]
 10 Feb 2007
To: Rob (AWARDZZ) [#1] 10 Feb 2007

In MOST cases, if you can find or save the connector, it can be replaced or repaired with the old connector.

As you noted, it is the amount of slack that will determine if you need to rewire from the rotary attachment or just replace the connector.

From: Harvey only (HARVEY-ONLY) [#3]
 10 Feb 2007
To: UncleSteve [#2] 10 Feb 2007

My ULS rotary uses a round cable so I am not sure of which type cable yours has.

If it is a super flat ribbon that the wire looks like thin flat pieces of copper, it is tough to repair. If it looks like wires bound together it is a little easier.

The best bet is to check with ULS if they have a replacement wire. You cannot be the only person who has gotten in to this problem.


From: Rob (AWARDZZ) [#4]
 10 Feb 2007
To: ALL

Thanks for the input(s)...a friend of mine who helps design ingnition switches/boxes for dragsters is stopping by later this afternoon, if he can't looks like a call to ULS first thing Monday Morn will be in order,,,as fate would have it.. the local FOP lodge is having their Polar Bear Plunge in 2 weeks,,, they just dropped off 29 mugs and 2 vases that they want back before I leave on the 19th...aaarrrgghhh..

crossing fingers

stay warm

Rob


From: Dave Jones (DAVERJ) [#5]
 10 Feb 2007
To: Rob (AWARDZZ) [#1] 10 Feb 2007

If it is flat ribbon and the wires are in 10 colors, then it is probably standard .050" ribbon cable. Any decent electronic parts store will have that kind of wire (it's not always rainbow colored) and the connectors. The connectors come in a lot of different sizes (ie: 10, 14, 16, 20, etc... pins) and the ribbon comes in a lot of widths with the appropriate number of wires. The connectors are crimped on. A standard vise does a good job of crimping those. Just don't over tighten.

It's possible to take apart a connector and crimp it back on to another section of the cable, but not a good idea in the long run. OK for a temporary fix, but the pins get slightly bent when crimped and don't connect as well a second time. But it's fine to get it working while waiting for a replacement.

You can check the wire size with a ruler. Most common ribbon (.050" pitch) has 10 wires per 1/2", but there are some other sizes occasionally used.

The rainbow colored ones have the following colors, in the following order: Brown, red, orange, yellow, green, blue, violet, gray, white, black. The colors then repeat for ribbons wider than 10 wires. The edge of the wire that starts with brow (followed by red, etc...) is pin number 1 of the ribbon. The connectors typically have a molded triangle or other mark on the same end as the brown wire. The wire available at a parts store might be a single color, instead of rainbow, such as gray. It would have a red stripe down one side, which is pin 1.


From: Rob (AWARDZZ) [#6]
 10 Feb 2007
To: Dave Jones (DAVERJ) [#5] 10 Feb 2007

You are correct... the colors are Black, White, Grey, Purple, Blue, Green, Yellow, Orange, Red than Brown..and it is 1/2", thank you so much, I am leaving your response up and show it to "Mr. Fixit"... hopefully he'll know what we need and where to get it...

THANK YOU!!!

Rob


From: Dave Jones (DAVERJ) [#7]
 10 Feb 2007
To: Rob (AWARDZZ) [#6] 10 Feb 2007

Those colors are standard color codes used in electronic markings. The colors mean:

1 = brown
2 = red
3 = orange
4 = yellow
5 = green
6 = blue
7 = violet
8 = gray
9 = white
0 = black


From: Dave Jones (DAVERJ) [#8]
 10 Feb 2007
To: Rob (AWARDZZ) [#6] 10 Feb 2007

The most important thing when repairing or replacing that ribbon is that pin one of each connector goes to the correct wire. The connectors can be crimped on right side up, upside down, or rotated left to right. Any of those can cause the wrong wires to go to the wrong pin on the other end. So it's critical that he pay attention to how the current connectors are attached to the wire, and in what orientation.

From: Rob (AWARDZZ) [#9]
 10 Feb 2007
To: Dave Jones (DAVERJ) [#8] 10 Feb 2007

Thanks for electronic seminar..... Steve aka Mr. Fix it just arrived and read your post,,,, in full agreement... only thing he said to tell you regarding "any decent parts store"......he says evidently you have never been to Ashtabula, OH......lol....looks like we'r gonna get it done..


Thanks for all your help....muchly appreciated


Rob


From: PenTrophy (PENINSULATROPHY) [#10]
 10 Feb 2007
To: Rob (AWARDZZ) [#9] 10 Feb 2007

You should be able to go to Target, Wallymart, RadioHut .. all you need is a computer ribbon cable and count off 10 wires and cut off the rest.

every PC hard drive uses one... except Mac/Apple


From: Rob (AWARDZZ) [#11]
 10 Feb 2007
To: PenTrophy (PENINSULATROPHY) [#10] 10 Feb 2007

Appreciate the info..... all is well, the rotary attachment is rotaring....cost me a burger and two beers.......proving once again..its not what you know but WHO ya Know..... ya know!!

Have a great wknd... c'ya all in Viva

Rob


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