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Crtalex




Joined: 21 Apr 2021
Posts: 3



PostLink    Posted: Wed Apr 21, 2021 10:43 pm    Post subject: delete Reply with quote


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Last edited by Crtalex on Mon May 03, 2021 11:44 am; edited 3 times in total
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kal
Forum Administrator



Joined: 06 Mar 2006
Posts: 17115
Location: Ottawa, Canada

TV/Projector: JVC DLA-RS56


PostLink    Posted: Wed Apr 21, 2021 11:39 pm    Post subject: Reply with quote

I don't have any specific recommendations other than to comment that many of your questions are about the specific inner workings of whatever CRT monitor you're trying to adjust, questions that nobody can really answer for you outside of people who have a deep understanding of the circuitry in your CRT monitor, like the engineers who designed the set. I'm referring to your questions like "Is it safe to max out RGB sliders" or "How do I properly/scientifically correctly set up G2 voltage". These are specific to that exact model of monitor, so the odds of someone being answer those questions is pretty low, so don't be surprised if you don't get detailed answers. Good luck!

Kal

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kal
Forum Administrator



Joined: 06 Mar 2006
Posts: 17115
Location: Ottawa, Canada

TV/Projector: JVC DLA-RS56


PostLink    Posted: Wed Apr 21, 2021 11:43 pm    Post subject: Reply with quote

I should mention too that you should indicate what make and model display you have. The type of tube in the display isnít whatís important. Cheers!

Kal

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Crtalex




Joined: 21 Apr 2021
Posts: 3



PostLink    Posted: Thu Apr 22, 2021 7:56 am    Post subject: Reply with quote

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Last edited by Crtalex on Thu May 20, 2021 6:44 am; edited 1 time in total
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jask




Joined: 17 Mar 2006
Posts: 9755
Location: kamloops BC


PostLink    Posted: Thu Apr 22, 2021 6:46 pm    Post subject: Reply with quote

Do you have a service manual? The calibration section is well written and has a list of the equipment needed ; signal generators, a high voltage probe and oscilloscope are needed. Adjusting the G2 without knowing the actual value is gambling at best, and once adjusted you have effectively thrown every other adjustment out for the original calibration... unfortunately this is circuitry that needs to be set based on actual measured values, not really something you can "eyeball" based on screen image. Is there anywhere you might be able to get access to these items? a school electronics lab? makerspace or electronics hobby group in your area?
I am going to guess you are using this for a gaming monitor?
https://hardforum.b-cdn.net/data/attachment-files/2016/12/70387_DIAMOND_PRO_2070SB__NEC_Multisync_FP2141SB.pdf Thumbs Up
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Crtalex




Joined: 21 Apr 2021
Posts: 3



PostLink    Posted: Thu Apr 22, 2021 7:50 pm    Post subject: Reply with quote

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Last edited by Crtalex on Thu May 20, 2021 6:45 am; edited 1 time in total
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jask




Joined: 17 Mar 2006
Posts: 9755
Location: kamloops BC


PostLink    Posted: Sat Apr 24, 2021 3:16 am    Post subject: Reply with quote

I would say your best possible results are only possible by being able to see, measure and adjust to best value electronically... you probably may need to adjust the G2 due to age, but as a result you also need to do a bunch of other adjustments... and once those are done you can then use your calibration system to set the monitor up for the application required.
You do not need to be a technician to learn, and what you will learn in the process of solving one problem may yield intangible results for future projects and problem solving. Good oscilloscopes are expensive! an oscilloscope suitable for this project.. or any CRT project is very common and not relatively expensive. where do you live?
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