Data Precision 6000 - Page 1
Forum section: electronics / repair

author: jdragoset
author_rank: Frequent Contributor
timestamp: November 22, 2020, 01:41:53 am
content: Any ideas on a service manual?

author: precaud
author_rank: Frequent Contributor
timestamp: November 22, 2020, 02:49:05 am
content: They produced a minimal service manual for the first release and then dropped it. It's pretty useless, frankly. I probably still have it.After that initial one, you had to be a pretty large customer to get service or cal instructions from them. They wanted them to come home for service.

author: jdragoset
author_rank: Frequent Contributor
timestamp: November 22, 2020, 03:24:07 am
content: I understand it was a specialty item with custom software, etc.I would just like a few viable test points to verify the power supplies, CPU, Memory, input plug in and particularly in the CRT display.

author: srb1954
author_rank: Super Contributor
timestamp: November 22, 2020, 12:45:50 pm
content: Quote from: jdragoset on November 22, 2020, 03:24:07 amI have a service manual but but it is pretty disjointed with bits of information all over the place. It provides some diagnostic information but relies heavily on signature analysis for testing the digital circuitry. The signature analysis seems to also require the use of a diagnostic board and a custom test box for which no internal details are provided.I don't have time to scan all the documentation at the moment but if you let me know the main area you are interested in I will attempt to scan a few pages. Unfortunately, most of the schematics are of exceptionally poor quality and I am doubtful whether I can successfully scan them.

author: jdragoset
author_rank: Frequent Contributor
timestamp: November 22, 2020, 03:46:10 pm
content: Scanning just a few pages indicating basic power supplies test points to check would be a great help.Email is: jdragoset@galvotec.com.Thanks in Advance,Jim

author: precaud
author_rank: Frequent Contributor
timestamp: November 23, 2020, 04:24:38 am
content: You can have mine for the cost to mail it.

author: 0culus
author_rank: Super Contributor
timestamp: November 23, 2020, 04:42:09 am
content: I have two Data 6000s and would love to have a scan of the service manual, no matter how minimal. Both of mine need some caps replaced for sure. These definitely aren't the most serviceable....especially the plugins. 4-6 stacked PCBs.

author: jdragoset
author_rank: Frequent Contributor
timestamp: November 23, 2020, 12:23:47 pm
content: Quote from: precaud on November 23, 2020, 04:24:38 amPlease find handling & shipping weight with a mailing address and I will send you the amount required plus our UPS ground label.Thanks,Jim

author: precaud
author_rank: Frequent Contributor
timestamp: November 23, 2020, 01:34:58 pm
content: The great feature of the 6000 was the excellent library of builtin math functions for signal processing, quite unique in its day. We used to call it "a professor in a box".The great headache was the user interface.The hidden gotcha is, there are no tracking antialiasing filters on the digitizer inputs. So you gotta bandwidth-limit the stimulus and/or response to ( Nyquist * 0.8 ).Analogic A2D converters were cutting edge in their day.

author: precaud
author_rank: Frequent Contributor
timestamp: November 23, 2020, 04:45:35 pm
content: My apologies, I spoke too soon. I found the binder, but it's empty. Which means I tossed the contents out a few months ago. Sorry...

author: jdragoset
author_rank: Frequent Contributor
timestamp: November 30, 2020, 02:18:28 am
content: Moving forward, clipped and replaced numerous Tant capacitors,as they failed, throughout.The last was a challenge, the two-channel plug-in Analogic DC to DC converter five volt input short circuit failed.Knifing the Analogic module shield PCB from the enclosure, found two electrolytic caps, one of which had failed (short circuit).Fortunately, the encapsulent is crystal clear and soft enough test and to snip the offending cap lead.Now have mainframe boards and plug in (all supplies) working but still no display.Will be testing for deflection yoke scan wave forms and HF/HV supply next.

author: precaud
author_rank: Frequent Contributor
timestamp: November 30, 2020, 01:01:42 pm
content: Yeah, the digitizing plugins are no fun to take apart and work on.I have parts/replacement boards for the 6000 mainframe if you need any. A few plugin parts units too.