Author Topic: 87V schematics!  (Read 1275 times)

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Offline mzacharias

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87V schematics!
« on: December 07, 2018, 07:38:39 am »
Yes. The U.S. Army documentation for the 87V(AN) includes schematics and (complete?) parts list.

The PDF file size slightly larger than allowed here.

I'm sure many folks here would like this information.

Perhaps somebody here could get me an email to someone appropriate who disseminate this info or give me some other way to post it?

I've not seen this info anywhere til now. It was on a CD-ROM of Fluke info I picked up somewhere and never really looked at.

Not to worry, been a member here a long time - no viruses or anything like that. Promise.

Offline Mr. Scram

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Re: 87V schematics!
« Reply #1 on: December 07, 2018, 07:40:35 am »
It's likely possible to repackage the PDF to make it smaller.
 

Offline DaJMasta

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Re: 87V schematics!
« Reply #2 on: December 07, 2018, 07:49:09 am »
I'm sure the KO4BB archive could use a copy too!

http://www.ko4bb.com/getsimple/index.php?id=upload-instructions

Offline Gyro

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Re: 87V schematics!
« Reply #3 on: December 07, 2018, 07:53:11 am »
https://www.pdfmerge.com/

There are links to Split PDF and Compress PDF at the bottom of the page. I'd go for the split and merge approach rather than compress to maintain maximum quality.

Certainly upload it to KO4BB too, but it can take a while to be put up.
Chris

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Offline mzacharias

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Re: 87V schematics!
« Reply #4 on: December 07, 2018, 08:02:51 am »
Here's part One:
 
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Offline mzacharias

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Re: 87V schematics!
« Reply #5 on: December 07, 2018, 08:16:37 am »
Here's part 2 of 4 - 87V service manual.
« Last Edit: December 07, 2018, 08:19:31 am by mzacharias »
 
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Offline mzacharias

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Re: 87V schematics!
« Reply #6 on: December 07, 2018, 08:17:20 am »
Here's part 3 of 4 - 87V service manual.
« Last Edit: December 07, 2018, 08:19:44 am by mzacharias »
 
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Offline mzacharias

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Re: 87V schematics!
« Reply #7 on: December 07, 2018, 08:22:19 am »
And Part 4 of 4 - this one has the schematics.

I uploaded the full PDF to KO4BB as well.
 
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Offline bd139

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Re: 87V schematics!
« Reply #8 on: December 07, 2018, 08:26:39 am »
That’s really cool. Thanks for posting.
 

Online mtdoc

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Re: 87V schematics!
« Reply #9 on: December 07, 2018, 08:32:52 am »
Thanks for posting but #2 and #3 have the wrong pages.  # 2 is pages 18-22 and #3 is pages 23-34.   Schematics start on page 38 :(
 

Offline gnavigator1007

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Re: 87V schematics!
« Reply #10 on: December 07, 2018, 08:33:37 am »
Any other interesting stuff on the disc?
 

Offline gnavigator1007

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Re: 87V schematics!
« Reply #11 on: December 07, 2018, 08:42:36 am »
Thanks for posting but #2 and #3 have the wrong pages.  # 2 is pages 18-22 and #3 is pages 23-34.   Schematics start on page 38 :(

Everything appears to be there for me.
 

Online mtdoc

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Re: 87V schematics!
« Reply #12 on: December 07, 2018, 08:46:41 am »
Thanks for posting but #2 and #3 have the wrong pages.  # 2 is pages 18-22 and #3 is pages 23-34.   Schematics start on page 38 :(

Everything appears to be there for me.

Yes he fixed it. Now there are 4 parts (prior was 1-3 of 3).

Thanks mzacharias!
 

Online EEVblog

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Re: 87V schematics!
« Reply #13 on: December 07, 2018, 08:51:15 am »
The LCD contrast has thermistor compensation, that's interesting.
And there is an IR communications serial interface not loaded.
 
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Offline mzacharias

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Re: 87V schematics!
« Reply #14 on: December 07, 2018, 08:58:53 am »
Sorry for the mess uploading y'all. The PDF split software was fairly quirky.
 
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Offline mzacharias

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Re: 87V schematics!
« Reply #15 on: December 07, 2018, 09:12:18 am »
Any other interesting stuff on the disc?

Just publicly available stuff so far as I can tell.
 
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Online Specmaster

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Re: 87V schematics!
« Reply #16 on: December 07, 2018, 09:15:06 am »
If anyone wants this as a single file rather then 4, please PM me with your email address and I'll email you back a copy with pleasure.
Who let Murphy in?
 

Offline bd139

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Re: 87V schematics!
« Reply #17 on: December 07, 2018, 09:18:26 am »
TP37 looks interesting. Voltage divider labelled MODEL SELECTION.
 

Offline rsjsouza

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Re: 87V schematics!
« Reply #18 on: December 07, 2018, 10:26:08 am »
Quite useful info! Thank you!

Specmaster, are you planning to post the full manual somewhere? KO4BB perhaps?
Vbe - vídeo blog eletrônico http://videos.vbeletronico.com

Oh, the "whys" of the datasheets... The information is there not to be an axiomatic truth, but instead each speck of data must be slowly inhaled while carefully performing a deep search inside oneself to find the true metaphysical sense...
 

Online Specmaster

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Re: 87V schematics!
« Reply #19 on: December 07, 2018, 10:36:25 am »
Quite useful info! Thank you!

Specmaster, are you planning to post the full manual somewhere? KO4BB perhaps?
Already did that tonight.
Who let Murphy in?
 
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Online EEVblog

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Re: 87V schematics!
« Reply #20 on: December 07, 2018, 12:21:53 pm »
TP37 looks interesting. Voltage divider labelled MODEL SELECTION.

Surely the 83V (the 85 isn't a thing any more?) would not have the RMS converter chip chip fitted though?
There are quite a lot of jumper difference between units as well, R104, R112, R113, and U12 MUX is only on the 87.
Maybe you could enabled 20000 count mode on the 83V though?
Does anyone have a teardown photo of the 83V?
 
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Offline mzacharias

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Re: 87V schematics!
« Reply #21 on: December 07, 2018, 02:21:07 pm »
Surely the 83V (the 85 isn't a thing any more?)

There never was an 85V. The 85 went away after the III series.
« Last Edit: December 07, 2018, 02:22:45 pm by mzacharias »
 

Offline mzacharias

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Re: 87V schematics!
« Reply #22 on: December 07, 2018, 02:25:19 pm »
Quite useful info! Thank you!

Specmaster, are you planning to post the full manual somewhere? KO4BB perhaps?
Already did that tonight.

Yeah - I uploaded the whole manual to K04BB also; I'm sure there's some latency there.
 

Online mnementh

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Re: 87V schematics!
« Reply #23 on: December 07, 2018, 03:37:58 pm »
Ooooh! Tasty!

Perusing his archive, I see he didn't have the Fluke 187/189 User & Calibration Manuals I have; well now he does. Now if I can just find the full Service Manual... I have the 87-IV/89-IV Service Manual, which I understand is the same meter, but mine doen't have schematics.

Thanks for the reminder I needed to do that!

mnem
*Trawling*
 

Online Specmaster

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Re: 87V schematics!
« Reply #24 on: December 07, 2018, 08:57:11 pm »
It's likely possible to repackage the PDF to make it smaller.
No it isn't, I merged the 4 parts and ran the Adobe acrobat professional optimisation routine and it came above 1Mb file size.
Who let Murphy in?
 


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