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Author Topic: how to safely test a new tri-sync CRT?  (Read 390 times)

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Vectorfire

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how to safely test a new tri-sync CRT?
« on: January 30, 2020, 06:40:29 am »
I have a new Makvision 27" Tri-Sync coming in a couple days and I have 5 days to test it before my ability to file a damage claim expires.
I haven't yet obtained an older ATI card or a jamma harness to use my J-Pac to safely test.

My day to day PC has a GTX2180ti. I know the monitor is capable to taking a 31khz signal, so can I just plug it in to that with a standard vga cable to test the monitor safely? And if so what resolution should I attempt this at? 800x600@60hz?

I don't want to go breaking anything before I even get started!

Thanks all for the hand holding session

« Last Edit: January 30, 2020, 06:47:38 am by Vectorfire »
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27" Makvision Tri-Mode Monitor

princess prin prin

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Re: how to safely test a new tri-sync CRT?
« Reply #1 on: January 30, 2020, 08:39:08 am »
640x480 would be safer.

lilshawn

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Re: how to safely test a new tri-sync CRT?
« Reply #2 on: January 30, 2020, 12:20:25 pm »
buys a tri sync montor that takes 31khz...wants to feed it 38khz

have i got everything...or is there something else i'm missing?

Vectorfire

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Re: how to safely test a new tri-sync CRT?
« Reply #3 on: January 30, 2020, 01:29:41 pm »
640x480 would be safer.

Will do , thank you!
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lilshawn

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Re: how to safely test a new tri-sync CRT?
« Reply #4 on: January 30, 2020, 02:42:02 pm »
FYI, tri sync = standard, medium and high resolutions.... also called 15k, 25k, and 31k also often erroneously called "CGA" "EGA" and "VGA" (well not VGA anyways)

15k = 640x240 "CGA" or standard resolution
25k = 773x381 "EGA" or medium resolution (AKA "good fer nothin res")
31k = 640x480 VGA or high resolution
38k = 800x600 SVGA or often erroneously called "XGA" (not widely implemented in arcade due to the movement away CRT and towards FPD's and TV's as output devices)


Vectorfire

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Re: how to safely test a new tri-sync CRT?
« Reply #5 on: January 31, 2020, 09:20:28 am »
FYI, tri sync = standard, medium and high resolutions.... also called 15k, 25k, and 31k also often erroneously called "CGA" "EGA" and "VGA" (well not VGA anyways)

15k = 640x240 "CGA" or standard resolution
25k = 773x381 "EGA" or medium resolution (AKA "good fer nothin res")
31k = 640x480 VGA or high resolution
38k = 800x600 SVGA or often erroneously called "XGA" (not widely implemented in arcade due to the movement away CRT and towards FPD's and TV's as output devices)

Thanks for this! I need all the clarification I can get my hands on, especially with regard to resolutions as I will be trying to implement CRT Emudriver in a couple days. Lot of information to absorb.
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Ultimarc Video Amplifier
27" Makvision Tri-Mode Monitor

lilshawn

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Re: how to safely test a new tri-sync CRT?
« Reply #6 on: January 31, 2020, 02:23:39 pm »
the tubes used with the  makvision 2929 and 3129 are very susceptible to burn-in, as the tube guns are driven VERY hard, compounded by the fact that people often run them blindingly bright.

this is still a CRT monitor...it's not really meant to be super bright. our eyes have been sullied by laser sharp FPD and plasma TV's and LED back lit screens with bajillion:1 contrast ratios. it's going to be a little dim... the color alignment in the corners is probably going to be off. it is what it is. 30 yer old technology.

turn that brightness down...turn off your room lights and enjoy it for what it is... a reminder of a bygone era.  :cheers:


Vectorfire

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Re: how to safely test a new tri-sync CRT?
« Reply #7 on: February 01, 2020, 05:57:08 am »
the tubes used with the  makvision 2929 and 3129 are very susceptible to burn-in, as the tube guns are driven VERY hard, compounded by the fact that people often run them blindingly bright.

this is still a CRT monitor...it's not really meant to be super bright. our eyes have been sullied by laser sharp FPD and plasma TV's and LED back lit screens with bajillion:1 contrast ratios. it's going to be a little dim... the color alignment in the corners is probably going to be off. it is what it is. 30 yer old technology.

turn that brightness down...turn off your room lights and enjoy it for what it is... a reminder of a bygone era.  :cheers:

 I've somehow become a relic along with these monitors. :cry:
 My last cabinet and restoration was a Taito Egret 29 with a Nanao MS8-29. I'm hoping this thing comes somewhere close to replicating the magic that monitor did for me.
Many a great night of shmuping remembered.
LCD's will never do it for me after having those years of glorious electron gun radiation firing into my face.
« Last Edit: February 01, 2020, 06:03:45 am by Vectorfire »
Groovy_Mame Rig:
Windows 7 Home Premium
Intel i7-3770K @ 4.50ghz
16gb DDR3
Creative SB0730 X-Fi Xtreme Gamer
Sapphire Dua-X R 280 Radeon: DVI-I-->VGA adapter
Ultimarc Video Amplifier
27" Makvision Tri-Mode Monitor