Re: Service manual scan post processing
Looking at the service manual for the Canon MS-8000 reveals the following
Photosensitive element
1) Type: CMOS CIS (image sensor
2) Density of element: 300 dpi
3) Effective elements: 3488 (effective
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Peter Brown
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#150532
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Re: HP 54512B (pair) repair
Don,
Thank you for this, as just posted I sourced 2430s and holders and am
hopeful that will work OK. I appreciate the link!
Radu.
[email protected]> wrote:
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Radu Bogdan Dicher
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#150531
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
Oh thats pounds like the good old dirty edge connector.
Sounds like the best repair.
Congrats.
Paul
WB8TSL
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paulswed
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#150530
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Re: HP 54512B (pair) repair
Harvey and all,
I guess you're right, once the unit is unplugged there shouldn't be a path
to short the battery and lose the existing memory (though I haven't done
this, so I'm not aware of all the
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Radu Bogdan Dicher
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#150529
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Re: HP 54512B (pair) repair
Correct.? What is likely being done is to replace the battery while the equipment is line powered.
If the battery is dead, then obviously, no problem.
What a safer approach (to me) would be is to
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Harvey White
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#150528
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
Just a quick comment:
I once tried adjusting one of the oscillators on the 8660 on an extender. Once it was placed back in the slot with the cover on, it would not lock. I had to go back and
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Gary Appel
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#150527
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Re: Service manual scan post processing
In the scanning application, when you select either 16 level of 256 level gray scale, the software automatically
- locks you out of contrast adjustments, setting the value to midband
- sets the
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Peter Brown
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#150526
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Re: HP Agilent 8753ES VNA repair [Help]
Measurement of the second LO on B sampler :
Measurement of the IF out on B sampler with a cable between port 1 and 2 :
The output of B sampler seems to be KO (should be about -15 dBm at 37 MHz). Is
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MattSNE
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#150525
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Re: Service manual scan post processing
To the best of my understanding they should be the raw scanner output.
The scanning program is a little obtuse though so it is possible that some additional processing has been applied, I will check
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Peter Brown
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#150524
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Re: Service manual scan post processing
I've tried "my" scancvt mechanism on file 11707A0014.tif and I'm not
satisfied with the results.
The file size is 93kB, but characters "4" "6", "R", "B" and similar have
the loop filled in, for
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Tom Gardner
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#150523
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Re: Service manual scan post processing
Peter, I'll take a whack at it. Stand by.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
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Dave McGuire
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#150522
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Re: HP Agilent 8753ES VNA repair [Help]
Yves,
OK. I just did a test with a SPAN from 30 KHz to 250 KHz and I have exactly the same problem.
A11 do not seems to be the problem on this unit.
30 KHz-250 KHz S11 response:
Here is two
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MattSNE
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#150521
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Re: HP Agilent 8753ES VNA repair [Help]
Hello Yves,
Thank you a lot for your measurement. It will help me a lot !
I was very busy this week, but I can now work again on this repair.
I will send here the picture you asked and compare your
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MattSNE
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#150520
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Re: HP 8660B/86602B developed output stability problem, getting-started suggestion(s) request
Today is "no good deed goes unpunished"...
Yesterday assembled four 15-pin extender cards (had the PCBs made a long time ago, but never built the 15-pin versions til yesterday.)
Initial goal has
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David Feldman
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#150519
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Re: HP 54512B (pair) repair
Harvey - correct me if I'm wrong, but I think the issue is supplying the 3V
while working on the battery (soldering with a grounded iron) from an
external power supply so the memory would be
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Radu Bogdan Dicher
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#150518
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Re: HP 54512B (pair) repair
You could, of course, simply unplug the meter you're working on, so it's isolated?
Rubber mat if needed.
Harvey
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Harvey White
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#150517
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Re: HP8510C TRL Calibration
Yes, thank you. They have a selection of different calibration algorithms. That's probably a really good place to start. Cheers, N
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neil
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#150516
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Re: Service manual scan post processing
Any other takers for trying to post process the 256 level .tiff files? -? found at
files - temporary directory for photographs and help relating to emails and posting/11707A Service PFX 1525A
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Peter Brown
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#150515
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Re: HP8510C TRL Calibration
Hi , you can visit the scikit-rf
https://scikit-rf.readthedocs.io/en/latest/tutorials/Networks.html
In the past, I tried some features of this software tools, but I did not go beyond a simple plot of
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Maurizio IZ1MDJ
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#150514
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HP8510C TRL Calibration
Went to great lengths to create PyVISA program to read using the GPIB the x4 parameter S-parameter data from the HP8510C. This eventually would read consecutive 1701 point sweeps in a round 5 seconds
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neil
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#150513
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