Re: [CAD_CAM_EDM_DRO] RE: chinese dro scale shorting dro display?

ken-

thanks. that did the trick. but prior to doing that the display was
set aside an hour or so and now the lcd have backlighting, but i can't see
the actual digits (very faint). upon disconnecting the power (not using
power switch - unplugging the cord), i can see the numbers pop-up briefly
just before the entire display loses power.

is there some built up charge somewhere i need to address?

thanks!

david



CNC Plans <http://www.fignoggle.com/plans/cncplans.htm> (DRO too)
Harbor Freight 10%, 20% and ENCO Free Shipping Coupons
<http://www.superx3.com/forums/viewforum.php?id=15>

On Fri, 4 Aug 2006, Kenneth A. Emmert wrote:

> hi all-
>
> i've run into an interesting problem with the chinese dro
> scales/displays:
>
> i recently mounted a dro scale to a 8x12 lathe. initially the display
> itself (a cheap shars unit) seemed to work fine, then it just all of
> a
> sudden went dim. after checking connections, cables, cleaning the
> scale,
> etc.. it appears that the problem is an electrical one.
>
>
> Yours is a common problem, display is being grounded out. Remove
> your grounding pin at outlet plug from display transformer. What is
> happening is scales are grounding out on machine and overloading
> transformer.
> Take a pair of pliers and remove round ground connection from
> transformer outlet plug. DC voltage between scale and machine
> should now register about .02 volts instead of 5 volts. Display
> transformer for these units cannot be a grounded version.
>
> Ken
> Kenneth Emmert
> SMW Precision
>
>
>
>
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... davemucha@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>